#ifdef lint #define WANT_UNIX #define DIRTY #define WANT_INTERVALS #endif /* lint */ #ifdef HAVE_CONFIG_H #include #endif #ifdef WANT_UNIX char nettest_unix_id[]="\ @(#)nettest_unix.c (c) Copyright 1994-2007 Hewlett-Packard Co. Version 2.4.3"; /****************************************************************/ /* */ /* nettest_bsd.c */ /* */ /* the BSD sockets parsing routine... */ /* */ /* scan_unix_args() */ /* */ /* the actual test routines... */ /* */ /* send_stream_stream() perform a stream stream test */ /* recv_stream_stream() */ /* send_stream_rr() perform a stream request/response */ /* recv_stream_rr() */ /* send_dg_stream() perform a dg stream test */ /* recv_dg_stream() */ /* send_dg_rr() perform a dg request/response */ /* recv_dg_rr() */ /* loc_cpu_rate() determine the local cpu maxrate */ /* rem_cpu_rate() find the remote cpu maxrate */ /* */ /****************************************************************/ /* at some point, I might want to go-in and see if I really need all */ /* these includes, but for the moment, we'll let them all just sit */ /* there. raj 8/94 */ #include #include #include #include #ifndef WIN32 #include #include #include #include #include #include #else /* WIN32 */ #include #include #include #endif /* WIN32 */ #include #include #include #ifdef NOSTDLIBH #include #else /* NOSTDLIBH */ #include #endif /* NOSTDLIBH */ #include #include "netlib.h" #include "netsh.h" #include "nettest_unix.h" /* these variables are specific to the UNIX sockets tests. declare */ /* them static to make them global only to this file. */ #define UNIX_PRFX "netperf." #define UNIX_LENGTH_MAX 0xFFFF - 28 static char path_prefix[32]; static int rss_size, /* remote socket send buffer size */ rsr_size, /* remote socket recv buffer size */ lss_size_req, /* requested local socket send buffer size */ lsr_size_req, /* requested local socket recv buffer size */ lss_size, /* local socket send buffer size */ lsr_size, /* local socket recv buffer size */ req_size = 1, /* request size */ rsp_size = 1, /* response size */ send_size, /* how big are individual sends */ recv_size; /* how big are individual receives */ /* different options for the sockets */ char unix_usage[] = "\n\ Usage: netperf [global options] -- [test options] \n\ \n\ STREAM/DG UNIX Sockets Test Options:\n\ -h Display this text\n\ -m bytes Set the send size (STREAM_STREAM, DG_STREAM)\n\ -M bytes Set the recv size (STREAM_STREAM, DG_STREAM)\n\ -p dir Set the directory where pipes are created\n\ -r req,res Set request,response size (STREAM_RR, DG_RR)\n\ -s send[,recv] Set local socket send/recv buffer sizes\n\ -S send[,recv] Set remote socket send/recv buffer sizes\n\ \n\ For those options taking two parms, at least one must be specified;\n\ specifying one value without a comma will set both parms to that\n\ value, specifying a value with a leading comma will set just the second\n\ parm, a value with a trailing comma will set just the first. To set\n\ each parm to unique values, specify both and separate them with a\n\ comma.\n"; /* this routing initializes all the test specific variables */ static void init_test_vars() { rss_size = 0; rsr_size = 0; lss_size_req = 0; lsr_size_req = 0; lss_size = 0; lsr_size = 0; req_size = 1; rsp_size = 1; send_size = 0; recv_size = 0; strcpy(path_prefix,"/tmp"); } /* This routine will create a data (listen) socket with the apropriate */ /* options set and return it to the caller. this replaces all the */ /* duplicate code in each of the test routines and should help make */ /* things a little easier to understand. since this routine can be */ /* called by either the netperf or netserver programs, all output */ /* should be directed towards "where." family is generally AF_UNIX, */ /* and type will be either SOCK_STREAM or SOCK_DGRAM */ SOCKET create_unix_socket(int family, int type) { SOCKET temp_socket; int sock_opt_len; /*set up the data socket */ temp_socket = socket(family, type, 0); if (temp_socket == INVALID_SOCKET){ fprintf(where, "netperf: create_unix_socket: socket: %d\n", errno); fflush(where); exit(1); } if (debug) { fprintf(where,"create_unix_socket: socket %d obtained...\n",temp_socket); fflush(where); } /* Modify the local socket size. The reason we alter the send buffer */ /* size here rather than when the connection is made is to take care */ /* of decreases in buffer size. Decreasing the window size after */ /* connection establishment is a STREAM no-no. Also, by setting the */ /* buffer (window) size before the connection is established, we can */ /* control the STREAM MSS (segment size). The MSS is never more that 1/2 */ /* the minimum receive buffer size at each half of the connection. */ /* This is why we are altering the receive buffer size on the sending */ /* size of a unidirectional transfer. If the user has not requested */ /* that the socket buffers be altered, we will try to find-out what */ /* their values are. If we cannot touch the socket buffer in any way, */ /* we will set the values to -1 to indicate that. */ set_sock_buffer(temp_socket, SEND_BUFFER, lss_size_req, &lss_size); set_sock_buffer(temp_socket, RECV_BUFFER, lsr_size_req, &lsr_size); return(temp_socket); } /* This routine implements the STREAM unidirectional data transfer test */ /* (a.k.a. stream) for the sockets interface. It receives its */ /* parameters via global variables from the shell and writes its */ /* output to the standard output. */ void send_stream_stream(char remote_host[]) { char *tput_title = "\ Recv Send Send \n\ Socket Socket Message Elapsed \n\ Size Size Size Time Throughput \n\ bytes bytes bytes secs. %s/sec \n\n"; char *tput_fmt_0 = "%7.2f\n"; char *tput_fmt_1 = "%5d %5d %6d %-6.2f %7.2f \n"; char *cpu_title = "\ Recv Send Send Utilization Service Demand\n\ Socket Socket Message Elapsed Send Recv Send Recv\n\ Size Size Size Time Throughput local remote local remote\n\ bytes bytes bytes secs. %-8.8s/s %% %% us/KB us/KB\n\n"; char *cpu_fmt_0 = "%6.3f\n"; char *cpu_fmt_1 = "%5d %5d %6d %-6.2f %7.2f %-6.2f %-6.2f %-6.3f %-6.3f\n"; char *ksink_fmt = "\n\ Alignment Offset %-8.8s %-8.8s Sends %-8.8s Recvs\n\ Local Remote Local Remote Xfered Per Per\n\ Send Recv Send Recv Send (avg) Recv (avg)\n\ %5d %5d %5d %5d %6.4g %6.2f %6d %6.2f %6d\n"; float elapsed_time; #ifdef WANT_INTERVALS int interval_count; #endif /* what we want is to have a buffer space that is at least one */ /* send-size greater than our send window. this will insure that we */ /* are never trying to re-use a buffer that may still be in the hands */ /* of the transport. This buffer will be malloc'd after we have found */ /* the size of the local senc socket buffer. We will want to deal */ /* with alignment and offset concerns as well. */ #ifdef DIRTY int *message_int_ptr; #endif #include struct ring_elt *send_ring; int len = 0; int nummessages; SOCKET send_socket; int bytes_remaining; /* with links like fddi, one can send > 32 bits worth of bytes */ /* during a test... ;-) */ double bytes_sent; #ifdef DIRTY int i; #endif /* DIRTY */ float local_cpu_utilization; float local_service_demand; float remote_cpu_utilization; float remote_service_demand; double thruput; struct sockaddr_un server; struct stream_stream_request_struct *stream_stream_request; struct stream_stream_response_struct *stream_stream_response; struct stream_stream_results_struct *stream_stream_result; stream_stream_request = (struct stream_stream_request_struct *)netperf_request.content.test_specific_data; stream_stream_response = (struct stream_stream_response_struct *)netperf_response.content.test_specific_data; stream_stream_result = (struct stream_stream_results_struct *)netperf_response.content.test_specific_data; /* since we are now disconnected from the code that established the */ /* control socket, and since we want to be able to use different */ /* protocols and such, we are passed the name of the remote host and */ /* must turn that into the test specific addressing information. */ bzero((char *)&server, sizeof(server)); server.sun_family = AF_UNIX; if ( print_headers ) { fprintf(where,"STREAM STREAM TEST\n"); if (local_cpu_usage || remote_cpu_usage) fprintf(where,cpu_title,format_units()); else fprintf(where,tput_title,format_units()); } /* initialize a few counters */ nummessages = 0; bytes_sent = 0.0; times_up = 0; /*set up the data socket */ send_socket = create_unix_socket(AF_UNIX, SOCK_STREAM); if (send_socket == INVALID_SOCKET){ perror("netperf: send_stream_stream: stream stream data socket"); exit(1); } if (debug) { fprintf(where,"send_stream_stream: send_socket obtained...\n"); } /* at this point, we have either retrieved the socket buffer sizes, */ /* or have tried to set them, so now, we may want to set the send */ /* size based on that (because the user either did not use a -m */ /* option, or used one with an argument of 0). If the socket buffer */ /* size is not available, we will set the send size to 4KB - no */ /* particular reason, just arbitrary... */ if (send_size == 0) { if (lss_size > 0) { send_size = lss_size; } else { send_size = 4096; } } /* set-up the data buffer ring with the requested alignment and offset. */ /* note also that we have allocated a quantity */ /* of memory that is at least one send-size greater than our socket */ /* buffer size. We want to be sure that there are at least two */ /* buffers allocated - this can be a bit of a problem when the */ /* send_size is bigger than the socket size, so we must check... the */ /* user may have wanted to explicitly set the "width" of our send */ /* buffers, we should respect that wish... */ if (send_width == 0) { send_width = (lss_size/send_size) + 1; if (send_width == 1) send_width++; } send_ring = allocate_buffer_ring(send_width, send_size, local_send_align, local_send_offset); /* If the user has requested cpu utilization measurements, we must */ /* calibrate the cpu(s). We will perform this task within the tests */ /* themselves. If the user has specified the cpu rate, then */ /* calibrate_local_cpu will return rather quickly as it will have */ /* nothing to do. If local_cpu_rate is zero, then we will go through */ /* all the "normal" calibration stuff and return the rate back.*/ if (local_cpu_usage) { local_cpu_rate = calibrate_local_cpu(local_cpu_rate); } /* Tell the remote end to do a listen. The server alters the socket */ /* paramters on the other side at this point, hence the reason for */ /* all the values being passed in the setup message. If the user did */ /* not specify any of the parameters, they will be passed as 0, which */ /* will indicate to the remote that no changes beyond the system's */ /* default should be used. Alignment is the exception, it will */ /* default to 1, which will be no alignment alterations. */ netperf_request.content.request_type = DO_STREAM_STREAM; stream_stream_request->send_buf_size = rss_size; stream_stream_request->recv_buf_size = rsr_size; stream_stream_request->receive_size = recv_size; stream_stream_request->recv_alignment = remote_recv_align; stream_stream_request->recv_offset = remote_recv_offset; stream_stream_request->measure_cpu = remote_cpu_usage; stream_stream_request->cpu_rate = remote_cpu_rate; if (test_time) { stream_stream_request->test_length = test_time; } else { stream_stream_request->test_length = test_bytes; } #ifdef DIRTY stream_stream_request->dirty_count = rem_dirty_count; stream_stream_request->clean_count = rem_clean_count; #endif /* DIRTY */ if (debug > 1) { fprintf(where, "netperf: send_stream_stream: requesting STREAM stream test\n"); } send_request(); /* The response from the remote will contain all of the relevant */ /* socket parameters for this test type. We will put them back into */ /* the variables here so they can be displayed if desired. The */ /* remote will have calibrated CPU if necessary, and will have done */ /* all the needed set-up we will have calibrated the cpu locally */ /* before sending the request, and will grab the counter value right */ /* after the connect returns. The remote will grab the counter right */ /* after the accept call. This saves the hassle of extra messages */ /* being sent for the STREAM tests. */ recv_response(); if (!netperf_response.content.serv_errno) { if (debug) fprintf(where,"remote listen done.\n"); rsr_size = stream_stream_response->recv_buf_size; rss_size = stream_stream_response->send_buf_size; remote_cpu_usage = stream_stream_response->measure_cpu; remote_cpu_rate = stream_stream_response->cpu_rate; strcpy(server.sun_path,stream_stream_response->unix_path); } else { Set_errno(netperf_response.content.serv_errno); perror("netperf: send_stream_stream: remote error"); exit(1); } /*Connect up to the remote port on the data socket */ if (connect(send_socket, (struct sockaddr *)&server, sizeof(server)) == INVALID_SOCKET){ perror("netperf: send_stream_stream: data socket connect failed"); printf(" path: %s\n",server.sun_path); exit(1); } /* Data Socket set-up is finished. If there were problems, either the */ /* connect would have failed, or the previous response would have */ /* indicated a problem. I failed to see the value of the extra */ /* message after the accept on the remote. If it failed, we'll see it */ /* here. If it didn't, we might as well start pumping data. */ /* Set-up the test end conditions. For a stream test, they can be */ /* either time or byte-count based. */ if (test_time) { /* The user wanted to end the test after a period of time. */ times_up = 0; bytes_remaining = 0; start_timer(test_time); } else { /* The tester wanted to send a number of bytes. */ bytes_remaining = test_bytes; times_up = 1; } /* The cpu_start routine will grab the current time and possibly */ /* value of the idle counter for later use in measuring cpu */ /* utilization and/or service demand and thruput. */ cpu_start(local_cpu_usage); /* We use an "OR" to control test execution. When the test is */ /* controlled by time, the byte count check will always return false. */ /* When the test is controlled by byte count, the time test will */ /* always return false. When the test is finished, the whole */ /* expression will go false and we will stop sending data. */ #ifdef DIRTY /* initialize the random number generator for putting dirty stuff */ /* into the send buffer. raj */ srand((int) getpid()); #endif while ((!times_up) || (bytes_remaining > 0)) { #ifdef DIRTY /* we want to dirty some number of consecutive integers in the buffer */ /* we are about to send. we may also want to bring some number of */ /* them cleanly into the cache. The clean ones will follow any dirty */ /* ones into the cache. at some point, we might want to replace */ /* the rand() call with something from a table to reduce our call */ /* overhead during the test, but it is not a high priority item. */ message_int_ptr = (int *)(send_ring->buffer_ptr); for (i = 0; i < loc_dirty_count; i++) { *message_int_ptr = rand(); message_int_ptr++; } for (i = 0; i < loc_clean_count; i++) { loc_dirty_count = *message_int_ptr; message_int_ptr++; } #endif /* DIRTY */ if((len=send(send_socket, send_ring->buffer_ptr, send_size, 0)) != send_size) { if ((len >=0) || (errno == EINTR)) { /* the test was interrupted, must be the end of test */ break; } perror("netperf: data send error"); printf("len was %d\n",len); exit(1); } #ifdef WANT_INTERVALS for (interval_count = 0; interval_count < interval_wate; interval_count++); #endif /* now we want to move our pointer to the next position in the */ /* data buffer...we may also want to wrap back to the "beginning" */ /* of the bufferspace, so we will mod the number of messages sent */ /* by the send width, and use that to calculate the offset to add */ /* to the base pointer. */ nummessages++; send_ring = send_ring->next; if (bytes_remaining) { bytes_remaining -= send_size; } } /* The test is over. Flush the buffers to the remote end. We do a */ /* graceful release to insure that all data has been taken by the */ /* remote. */ if (close(send_socket) == -1) { perror("netperf: send_stream_stream: cannot close socket"); exit(1); } /* this call will always give us the elapsed time for the test, and */ /* will also store-away the necessaries for cpu utilization */ cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being */ /* measured and how */ /* long did we really */ /* run? */ /* Get the statistics from the remote end. The remote will have */ /* calculated service demand and all those interesting things. If it */ /* wasn't supposed to care, it will return obvious values. */ recv_response(); if (!netperf_response.content.serv_errno) { if (debug) fprintf(where,"remote results obtained\n"); } else { Set_errno(netperf_response.content.serv_errno); perror("netperf: remote error"); exit(1); } /* We now calculate what our thruput was for the test. In the future, */ /* we may want to include a calculation of the thruput measured by */ /* the remote, but it should be the case that for a STREAM stream test, */ /* that the two numbers should be *very* close... We calculate */ /* bytes_sent regardless of the way the test length was controlled. */ /* If it was time, we needed to, and if it was by bytes, the user may */ /* have specified a number of bytes that wasn't a multiple of the */ /* send_size, so we really didn't send what he asked for ;-) */ bytes_sent = ((double) send_size * (double) nummessages) + len; thruput = calc_thruput(bytes_sent); if (local_cpu_usage || remote_cpu_usage) { /* We must now do a little math for service demand and cpu */ /* utilization for the system(s) */ /* Of course, some of the information might be bogus because */ /* there was no idle counter in the kernel(s). We need to make */ /* a note of this for the user's benefit...*/ if (local_cpu_usage) { if (local_cpu_rate == 0.0) { fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n"); fprintf(where,"Local CPU usage numbers based on process information only!\n"); fflush(where); } local_cpu_utilization = calc_cpu_util(0.0); local_service_demand = calc_service_demand(bytes_sent, 0.0, 0.0, 0); } else { local_cpu_utilization = -1.0; local_service_demand = -1.0; } if (remote_cpu_usage) { if (remote_cpu_rate == 0.0) { fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n"); fprintf(where,"Remote CPU usage numbers based on process information only!\n"); fflush(where); } remote_cpu_utilization = stream_stream_result->cpu_util; remote_service_demand = calc_service_demand(bytes_sent, 0.0, remote_cpu_utilization, stream_stream_result->num_cpus); } else { remote_cpu_utilization = -1.0; remote_service_demand = -1.0; } /* We are now ready to print all the information. If the user */ /* has specified zero-level verbosity, we will just print the */ /* local service demand, or the remote service demand. If the */ /* user has requested verbosity level 1, he will get the basic */ /* "streamperf" numbers. If the user has specified a verbosity */ /* of greater than 1, we will display a veritable plethora of */ /* background information from outside of this block as it it */ /* not cpu_measurement specific... */ switch (verbosity) { case 0: if (local_cpu_usage) { fprintf(where, cpu_fmt_0, local_service_demand); } else { fprintf(where, cpu_fmt_0, remote_service_demand); } break; case 1: case 2: fprintf(where, cpu_fmt_1, /* the format string */ rsr_size, /* remote recvbuf size */ lss_size, /* local sendbuf size */ send_size, /* how large were the sends */ elapsed_time, /* how long was the test */ thruput, /* what was the xfer rate */ local_cpu_utilization, /* local cpu */ remote_cpu_utilization, /* remote cpu */ local_service_demand, /* local service demand */ remote_service_demand); /* remote service demand */ break; } } else { /* The tester did not wish to measure service demand. */ switch (verbosity) { case 0: fprintf(where, tput_fmt_0, thruput); break; case 1: case 2: fprintf(where, tput_fmt_1, /* the format string */ rsr_size, /* remote recvbuf size */ lss_size, /* local sendbuf size */ send_size, /* how large were the sends */ elapsed_time, /* how long did it take */ thruput);/* how fast did it go */ break; } } /* it would be a good thing to include information about some of the */ /* other parameters that may have been set for this test, but at the */ /* moment, I do not wish to figure-out all the formatting, so I will */ /* just put this comment here to help remind me that it is something */ /* that should be done at a later time. */ if (verbosity > 1) { /* The user wanted to know it all, so we will give it to him. */ /* This information will include as much as we can find about */ /* STREAM statistics, the alignments of the sends and receives */ /* and all that sort of rot... */ fprintf(where, ksink_fmt, "Bytes", "Bytes", "Bytes", local_send_align, remote_recv_align, local_send_offset, remote_recv_offset, bytes_sent, bytes_sent / (double)nummessages, nummessages, bytes_sent / (double)stream_stream_result->recv_calls, stream_stream_result->recv_calls); } } /* This is the server-side routine for the stream stream test. It is */ /* implemented as one routine. I could break things-out somewhat, but */ /* didn't feel it was necessary. */ void recv_stream_stream() { struct sockaddr_un myaddr_un, peeraddr_un; SOCKET s_listen,s_data; int addrlen; int len; int receive_calls = 0; float elapsed_time; int bytes_received; struct ring_elt *recv_ring; #ifdef DIRTY char *message_ptr; int *message_int_ptr; int dirty_count; int clean_count; int i; #endif struct stream_stream_request_struct *stream_stream_request; struct stream_stream_response_struct *stream_stream_response; struct stream_stream_results_struct *stream_stream_results; stream_stream_request = (struct stream_stream_request_struct *)netperf_request.content.test_specific_data; stream_stream_response = (struct stream_stream_response_struct *)netperf_response.content.test_specific_data; stream_stream_results = (struct stream_stream_results_struct *)netperf_response.content.test_specific_data; if (debug) { fprintf(where,"netserver: recv_stream_stream: entered...\n"); fflush(where); } /* We want to set-up the listen socket with all the desired */ /* parameters and then let the initiator know that all is ready. If */ /* socket size defaults are to be used, then the initiator will have */ /* sent us 0's. If the socket sizes cannot be changed, then we will */ /* send-back what they are. If that information cannot be determined, */ /* then we send-back -1's for the sizes. If things go wrong for any */ /* reason, we will drop back ten yards and punt. */ /* If anything goes wrong, we want the remote to know about it. It */ /* would be best if the error that the remote reports to the user is */ /* the actual error we encountered, rather than some bogus unexpected */ /* response type message. */ if (debug) { fprintf(where,"recv_stream_stream: setting the response type...\n"); fflush(where); } netperf_response.content.response_type = STREAM_STREAM_RESPONSE; if (debug) { fprintf(where,"recv_stream_stream: the response type is set...\n"); fflush(where); } /* We now alter the message_ptr variable to be at the desired */ /* alignment with the desired offset. */ if (debug) { fprintf(where,"recv_stream_stream: requested alignment of %d\n", stream_stream_request->recv_alignment); fflush(where); } /* Let's clear-out our sockaddr for the sake of cleanlines. Then we */ /* can put in OUR values !-) At some point, we may want to nail this */ /* socket to a particular network-level address, but for now, */ /* INADDR_ANY should be just fine. */ bzero((char *)&myaddr_un, sizeof(myaddr_un)); myaddr_un.sun_family = AF_UNIX; /* Grab a socket to listen on, and then listen on it. */ if (debug) { fprintf(where,"recv_stream_stream: grabbing a socket...\n"); fflush(where); } /* create_unix_socket expects to find some things in the global */ /* variables, so set the globals based on the values in the request. */ /* once the socket has been created, we will set the response values */ /* based on the updated value of those globals. raj 7/94 */ lss_size_req = stream_stream_request->send_buf_size; lsr_size_req = stream_stream_request->recv_buf_size; s_listen = create_unix_socket(AF_UNIX, SOCK_STREAM); if (s_listen == INVALID_SOCKET) { netperf_response.content.serv_errno = errno; send_response(); exit(1); } /* Let's get an address assigned to this socket so we can tell the */ /* initiator how to reach the data socket. There may be a desire to */ /* nail this socket to a specific IP address in a multi-homed, */ /* multi-connection situation, but for now, we'll ignore the issue */ /* and concentrate on single connection testing. */ strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf.")); if (debug) { fprintf(where,"selected a path of %s\n",myaddr_un.sun_path); fflush(where); } if (bind(s_listen, (struct sockaddr *)&myaddr_un, sizeof(myaddr_un)) == SOCKET_ERROR) { netperf_response.content.serv_errno = errno; fprintf(where,"could not bind to path\n"); close(s_listen); send_response(); exit(1); } chmod(myaddr_un.sun_path, 0666); /* what sort of sizes did we end-up with? */ if (stream_stream_request->receive_size == 0) { if (lsr_size > 0) { recv_size = lsr_size; } else { recv_size = 4096; } } else { recv_size = stream_stream_request->receive_size; } /* we want to set-up our recv_ring in a manner analagous to what we */ /* do on the sending side. this is more for the sake of symmetry */ /* than for the needs of say copy avoidance, but it might also be */ /* more realistic - this way one could conceivably go with a */ /* double-buffering scheme when taking the data an putting it into */ /* the filesystem or something like that. raj 7/94 */ if (recv_width == 0) { recv_width = (lsr_size/recv_size) + 1; if (recv_width == 1) recv_width++; } recv_ring = allocate_buffer_ring(recv_width, recv_size, stream_stream_request->recv_alignment, stream_stream_request->recv_offset); if (debug) { fprintf(where,"recv_stream_stream: receive alignment and offset set...\n"); fflush(where); } /* Now, let's set-up the socket to listen for connections */ if (listen(s_listen, 5) == SOCKET_ERROR) { netperf_response.content.serv_errno = errno; close(s_listen); send_response(); exit(1); } /* now get the port number assigned by the system */ addrlen = sizeof(myaddr_un); if (getsockname(s_listen, (struct sockaddr *)&myaddr_un, &addrlen) == SOCKET_ERROR){ netperf_response.content.serv_errno = errno; close(s_listen); send_response(); exit(1); } /* Now myaddr_un contains the path */ /* returned to the sender also implicitly telling the sender that the */ /* socket buffer sizing has been done. */ strcpy(stream_stream_response->unix_path,myaddr_un.sun_path); netperf_response.content.serv_errno = 0; /* But wait, there's more. If the initiator wanted cpu measurements, */ /* then we must call the calibrate routine, which will return the max */ /* rate back to the initiator. If the CPU was not to be measured, or */ /* something went wrong with the calibration, we will return a -1 to */ /* the initiator. */ stream_stream_response->cpu_rate = 0.0; /* assume no cpu */ if (stream_stream_request->measure_cpu) { stream_stream_response->measure_cpu = 1; stream_stream_response->cpu_rate = calibrate_local_cpu(stream_stream_request->cpu_rate); } /* before we send the response back to the initiator, pull some of */ /* the socket parms from the globals */ stream_stream_response->send_buf_size = lss_size; stream_stream_response->recv_buf_size = lsr_size; stream_stream_response->receive_size = recv_size; send_response(); addrlen = sizeof(peeraddr_un); if ((s_data=accept(s_listen, (struct sockaddr *)&peeraddr_un, &addrlen)) == INVALID_SOCKET) { /* Let's just punt. The remote will be given some information */ close(s_listen); exit(1); } /* Now it's time to start receiving data on the connection. We will */ /* first grab the apropriate counters and then start grabbing. */ cpu_start(stream_stream_request->measure_cpu); /* The loop will exit when the sender does a shutdown, which will */ /* return a length of zero */ #ifdef DIRTY /* we want to dirty some number of consecutive integers in the buffer */ /* we are about to recv. we may also want to bring some number of */ /* them cleanly into the cache. The clean ones will follow any dirty */ /* ones into the cache. */ dirty_count = stream_stream_request->dirty_count; clean_count = stream_stream_request->clean_count; message_int_ptr = (int *)recv_ring->buffer_ptr; for (i = 0; i < dirty_count; i++) { *message_int_ptr = rand(); message_int_ptr++; } for (i = 0; i < clean_count; i++) { dirty_count = *message_int_ptr; message_int_ptr++; } #endif /* DIRTY */ bytes_received = 0; while ((len = recv(s_data, recv_ring->buffer_ptr, recv_size, 0)) != 0) { if (len == SOCKET_ERROR) { netperf_response.content.serv_errno = errno; send_response(); exit(1); } bytes_received += len; receive_calls++; /* more to the next buffer in the recv_ring */ recv_ring = recv_ring->next; #ifdef DIRTY message_int_ptr = (int *)(recv_ring->buffer_ptr); for (i = 0; i < dirty_count; i++) { *message_int_ptr = rand(); message_int_ptr++; } for (i = 0; i < clean_count; i++) { dirty_count = *message_int_ptr; message_int_ptr++; } #endif /* DIRTY */ } /* The loop now exits due to zero bytes received. we will have */ /* counted one too many messages received, so decrement the */ /* receive_calls counter by one. raj 7/94 */ receive_calls--; /* perform a shutdown to signal the sender that */ /* we have received all the data sent. raj 4/93 */ if (shutdown(s_data,1) == SOCKET_ERROR) { netperf_response.content.serv_errno = errno; send_response(); exit(1); } cpu_stop(stream_stream_request->measure_cpu,&elapsed_time); /* send the results to the sender */ if (debug) { fprintf(where, "recv_stream_stream: got %d bytes\n", bytes_received); fprintf(where, "recv_stream_stream: got %d recvs\n", receive_calls); fflush(where); } stream_stream_results->bytes_received = bytes_received; stream_stream_results->elapsed_time = elapsed_time; stream_stream_results->recv_calls = receive_calls; if (stream_stream_request->measure_cpu) { stream_stream_results->cpu_util = calc_cpu_util(0.0); }; if (debug > 1) { fprintf(where, "recv_stream_stream: test complete, sending results.\n"); fflush(where); } send_response(); unlink(myaddr_un.sun_path); } /* this routine implements the sending (netperf) side of the STREAM_RR */ /* test. */ void send_stream_rr(char remote_host[]) { char *tput_title = "\ Local /Remote\n\ Socket Size Request Resp. Elapsed Trans.\n\ Send Recv Size Size Time Rate \n\ bytes Bytes bytes bytes secs. per sec \n\n"; char *tput_fmt_0 = "%7.2f\n"; char *tput_fmt_1_line_1 = "\ %-6d %-6d %-6d %-6d %-6.2f %7.2f \n"; char *tput_fmt_1_line_2 = "\ %-6d %-6d\n"; char *cpu_title = "\ Local /Remote\n\ Socket Size Request Resp. Elapsed Trans. CPU CPU S.dem S.dem\n\ Send Recv Size Size Time Rate local remote local remote\n\ bytes bytes bytes bytes secs. per sec %% %% us/Tr us/Tr\n\n"; char *cpu_fmt_0 = "%6.3f\n"; char *cpu_fmt_1_line_1 = "\ %-6d %-6d %-6d %-6d %-6.2f %-6.2f %-6.2f %-6.2f %-6.3f %-6.3f\n"; char *cpu_fmt_1_line_2 = "\ %-6d %-6d\n"; char *ksink_fmt = "\ Alignment Offset\n\ Local Remote Local Remote\n\ Send Recv Send Recv\n\ %5d %5d %5d %5d\n"; int timed_out = 0; float elapsed_time; int len; char *temp_message_ptr; int nummessages; SOCKET send_socket; int trans_remaining; double bytes_xferd; struct ring_elt *send_ring; struct ring_elt *recv_ring; int rsp_bytes_left; int rsp_bytes_recvd; float local_cpu_utilization; float local_service_demand; float remote_cpu_utilization; float remote_service_demand; double thruput; struct sockaddr_un server; struct stream_rr_request_struct *stream_rr_request; struct stream_rr_response_struct *stream_rr_response; struct stream_rr_results_struct *stream_rr_result; stream_rr_request = (struct stream_rr_request_struct *)netperf_request.content.test_specific_data; stream_rr_response= (struct stream_rr_response_struct *)netperf_response.content.test_specific_data; stream_rr_result = (struct stream_rr_results_struct *)netperf_response.content.test_specific_data; /* since we are now disconnected from the code that established the */ /* control socket, and since we want to be able to use different */ /* protocols and such, we are passed the name of the remote host and */ /* must turn that into the test specific addressing information. */ bzero((char *)&server, sizeof(server)); server.sun_family = AF_UNIX; if ( print_headers ) { fprintf(where,"STREAM REQUEST/RESPONSE TEST\n"); if (local_cpu_usage || remote_cpu_usage) fprintf(where,cpu_title,format_units()); else fprintf(where,tput_title,format_units()); } /* initialize a few counters */ nummessages = 0; bytes_xferd = 0.0; times_up = 0; /* set-up the data buffers with the requested alignment and offset. */ /* since this is a request/response test, default the send_width and */ /* recv_width to 1 and not two raj 7/94 */ if (send_width == 0) send_width = 1; if (recv_width == 0) recv_width = 1; send_ring = allocate_buffer_ring(send_width, req_size, local_send_align, local_send_offset); recv_ring = allocate_buffer_ring(recv_width, rsp_size, local_recv_align, local_recv_offset); /*set up the data socket */ send_socket = create_unix_socket(AF_UNIX, SOCK_STREAM); if (send_socket == INVALID_SOCKET){ perror("netperf: send_stream_rr: stream stream data socket"); exit(1); } if (debug) { fprintf(where,"send_stream_rr: send_socket obtained...\n"); } /* If the user has requested cpu utilization measurements, we must */ /* calibrate the cpu(s). We will perform this task within the tests */ /* themselves. If the user has specified the cpu rate, then */ /* calibrate_local_cpu will return rather quickly as it will have */ /* nothing to do. If local_cpu_rate is zero, then we will go through */ /* all the "normal" calibration stuff and return the rate back.*/ if (local_cpu_usage) { local_cpu_rate = calibrate_local_cpu(local_cpu_rate); } /* Tell the remote end to do a listen. The server alters the socket */ /* paramters on the other side at this point, hence the reason for */ /* all the values being passed in the setup message. If the user did */ /* not specify any of the parameters, they will be passed as 0, which */ /* will indicate to the remote that no changes beyond the system's */ /* default should be used. Alignment is the exception, it will */ /* default to 8, which will be no alignment alterations. */ netperf_request.content.request_type = DO_STREAM_RR; stream_rr_request->recv_buf_size = rsr_size; stream_rr_request->send_buf_size = rss_size; stream_rr_request->recv_alignment= remote_recv_align; stream_rr_request->recv_offset = remote_recv_offset; stream_rr_request->send_alignment= remote_send_align; stream_rr_request->send_offset = remote_send_offset; stream_rr_request->request_size = req_size; stream_rr_request->response_size = rsp_size; stream_rr_request->measure_cpu = remote_cpu_usage; stream_rr_request->cpu_rate = remote_cpu_rate; if (test_time) { stream_rr_request->test_length = test_time; } else { stream_rr_request->test_length = test_trans * -1; } if (debug > 1) { fprintf(where,"netperf: send_stream_rr: requesting STREAM rr test\n"); } send_request(); /* The response from the remote will contain all of the relevant */ /* socket parameters for this test type. We will put them back into */ /* the variables here so they can be displayed if desired. The */ /* remote will have calibrated CPU if necessary, and will have done */ /* all the needed set-up we will have calibrated the cpu locally */ /* before sending the request, and will grab the counter value right */ /* after the connect returns. The remote will grab the counter right */ /* after the accept call. This saves the hassle of extra messages */ /* being sent for the STREAM tests. */ recv_response(); if (!netperf_response.content.serv_errno) { if (debug) fprintf(where,"remote listen done.\n"); rsr_size = stream_rr_response->recv_buf_size; rss_size = stream_rr_response->send_buf_size; remote_cpu_usage= stream_rr_response->measure_cpu; remote_cpu_rate = stream_rr_response->cpu_rate; /* make sure that port numbers are in network order */ strcpy(server.sun_path,stream_rr_response->unix_path); } else { Set_errno(netperf_response.content.serv_errno); perror("netperf: remote error"); exit(1); } /*Connect up to the remote port on the data socket */ if (connect(send_socket, (struct sockaddr *)&server, sizeof(server)) == INVALID_SOCKET){ perror("netperf: data socket connect failed"); exit(1); } /* Data Socket set-up is finished. If there were problems, either the */ /* connect would have failed, or the previous response would have */ /* indicated a problem. I failed to see the value of the extra */ /* message after the accept on the remote. If it failed, we'll see it */ /* here. If it didn't, we might as well start pumping data. */ /* Set-up the test end conditions. For a request/response test, they */ /* can be either time or transaction based. */ if (test_time) { /* The user wanted to end the test after a period of time. */ times_up = 0; trans_remaining = 0; start_timer(test_time); } else { /* The tester wanted to send a number of bytes. */ trans_remaining = test_bytes; times_up = 1; } /* The cpu_start routine will grab the current time and possibly */ /* value of the idle counter for later use in measuring cpu */ /* utilization and/or service demand and thruput. */ cpu_start(local_cpu_usage); /* We use an "OR" to control test execution. When the test is */ /* controlled by time, the byte count check will always return false. */ /* When the test is controlled by byte count, the time test will */ /* always return false. When the test is finished, the whole */ /* expression will go false and we will stop sending data. I think I */ /* just arbitrarily decrement trans_remaining for the timed test, but */ /* will not do that just yet... One other question is whether or not */ /* the send buffer and the receive buffer should be the same buffer. */ while ((!times_up) || (trans_remaining > 0)) { /* send the request. we assume that if we use a blocking socket, */ /* the request will be sent at one shot. */ if((len=send(send_socket, send_ring->buffer_ptr, req_size, 0)) != req_size) { if (errno == EINTR) { /* we hit the end of a */ /* timed test. */ timed_out = 1; break; } perror("send_stream_rr: data send error"); exit(1); } send_ring = send_ring->next; /* receive the response */ rsp_bytes_left = rsp_size; temp_message_ptr = recv_ring->buffer_ptr; while(rsp_bytes_left > 0) { if((rsp_bytes_recvd=recv(send_socket, temp_message_ptr, rsp_bytes_left, 0)) == SOCKET_ERROR) { if (errno == EINTR) { /* We hit the end of a timed test. */ timed_out = 1; break; } perror("send_stream_rr: data recv error"); exit(1); } rsp_bytes_left -= rsp_bytes_recvd; temp_message_ptr += rsp_bytes_recvd; } recv_ring = recv_ring->next; if (timed_out) { /* we may have been in a nested while loop - we need */ /* another call to break. */ break; } nummessages++; if (trans_remaining) { trans_remaining--; } if (debug > 3) { fprintf(where, "Transaction %d completed\n", nummessages); fflush(where); } } /* At this point we used to call shutdown on the data socket to be */ /* sure all the data was delivered, but this was not germane in a */ /* request/response test, and it was causing the tests to "hang" when */ /* they were being controlled by time. So, I have replaced this */ /* shutdown call with a call to close that can be found later in the */ /* procedure. */ /* this call will always give us the elapsed time for the test, and */ /* will also store-away the necessaries for cpu utilization */ cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being measured? */ /* how long did we really run? */ /* Get the statistics from the remote end. The remote will have */ /* calculated service demand and all those interesting things. If it */ /* wasn't supposed to care, it will return obvious values. */ recv_response(); if (!netperf_response.content.serv_errno) { if (debug) fprintf(where,"remote results obtained\n"); } else { Set_errno(netperf_response.content.serv_errno); perror("netperf: remote error"); exit(1); } /* We now calculate what our thruput was for the test. In the future, */ /* we may want to include a calculation of the thruput measured by */ /* the remote, but it should be the case that for a STREAM stream test, */ /* that the two numbers should be *very* close... We calculate */ /* bytes_sent regardless of the way the test length was controlled. */ /* If it was time, we needed to, and if it was by bytes, the user may */ /* have specified a number of bytes that wasn't a multiple of the */ /* send_size, so we really didn't send what he asked for ;-) We use */ /* Kbytes/s as the units of thruput for a STREAM stream test, where K = */ /* 1024. A future enhancement *might* be to choose from a couple of */ /* unit selections. */ bytes_xferd = (req_size * nummessages) + (rsp_size * nummessages); thruput = calc_thruput(bytes_xferd); if (local_cpu_usage || remote_cpu_usage) { /* We must now do a little math for service demand and cpu */ /* utilization for the system(s) */ /* Of course, some of the information might be bogus because */ /* there was no idle counter in the kernel(s). We need to make */ /* a note of this for the user's benefit...*/ if (local_cpu_usage) { if (local_cpu_rate == 0.0) { fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n"); fprintf(where,"Local CPU usage numbers based on process information only!\n"); fflush(where); } local_cpu_utilization = calc_cpu_util(0.0); /* since calc_service demand is doing ms/Kunit we will */ /* multiply the number of transaction by 1024 to get */ /* "good" numbers */ local_service_demand = calc_service_demand((double) nummessages*1024, 0.0, 0.0, 0); } else { local_cpu_utilization = -1.0; local_service_demand = -1.0; } if (remote_cpu_usage) { if (remote_cpu_rate == 0.0) { fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n"); fprintf(where,"Remote CPU usage numbers based on process information only!\n"); fflush(where); } remote_cpu_utilization = stream_rr_result->cpu_util; /* since calc_service demand is doing ms/Kunit we will */ /* multiply the number of transaction by 1024 to get */ /* "good" numbers */ remote_service_demand = calc_service_demand((double) nummessages*1024, 0.0, remote_cpu_utilization, stream_rr_result->num_cpus); } else { remote_cpu_utilization = -1.0; remote_service_demand = -1.0; } /* We are now ready to print all the information. If the user */ /* has specified zero-level verbosity, we will just print the */ /* local service demand, or the remote service demand. If the */ /* user has requested verbosity level 1, he will get the basic */ /* "streamperf" numbers. If the user has specified a verbosity */ /* of greater than 1, we will display a veritable plethora of */ /* background information from outside of this block as it it */ /* not cpu_measurement specific... */ switch (verbosity) { case 0: if (local_cpu_usage) { fprintf(where, cpu_fmt_0, local_service_demand); } else { fprintf(where, cpu_fmt_0, remote_service_demand); } break; case 1: fprintf(where, cpu_fmt_1_line_1, /* the format string */ lss_size, /* local sendbuf size */ lsr_size, req_size, /* how large were the requests */ rsp_size, /* guess */ elapsed_time, /* how long was the test */ nummessages/elapsed_time, local_cpu_utilization, /* local cpu */ remote_cpu_utilization, /* remote cpu */ local_service_demand, /* local service demand */ remote_service_demand); /* remote service demand */ fprintf(where, cpu_fmt_1_line_2, rss_size, rsr_size); break; } } else { /* The tester did not wish to measure service demand. */ switch (verbosity) { case 0: fprintf(where, tput_fmt_0, nummessages/elapsed_time); break; case 1: fprintf(where, tput_fmt_1_line_1, /* the format string */ lss_size, lsr_size, req_size, /* how large were the requests */ rsp_size, /* how large were the responses */ elapsed_time, /* how long did it take */ nummessages/elapsed_time); fprintf(where, tput_fmt_1_line_2, rss_size, /* remote recvbuf size */ rsr_size); break; } } /* it would be a good thing to include information about some of the */ /* other parameters that may have been set for this test, but at the */ /* moment, I do not wish to figure-out all the formatting, so I will */ /* just put this comment here to help remind me that it is something */ /* that should be done at a later time. */ if (verbosity > 1) { /* The user wanted to know it all, so we will give it to him. */ /* This information will include as much as we can find about */ /* STREAM statistics, the alignments of the sends and receives */ /* and all that sort of rot... */ fprintf(where, ksink_fmt); } /* The test is over. Kill the data socket */ if (close(send_socket) == -1) { perror("send_stream_rr: cannot shutdown stream stream socket"); } } void send_dg_stream(char remote_host[]) { /************************************************************************/ /* */ /* DG Unidirectional Send Test */ /* */ /************************************************************************/ char *tput_title = "Socket Message Elapsed Messages \n\ Size Size Time Okay Errors Throughput\n\ bytes bytes secs # # %s/sec\n\n"; char *tput_fmt_0 = "%7.2f\n"; char *tput_fmt_1 = "%5d %5d %-7.2f %7d %6d %7.2f\n\ %5d %-7.2f %7d %7.2f\n\n"; char *cpu_title = "Socket Message Elapsed Messages CPU Service\n\ Size Size Time Okay Errors Throughput Util Demand\n\ bytes bytes secs # # %s/sec %% us/KB\n\n"; char *cpu_fmt_0 = "%6.2f\n"; char *cpu_fmt_1 = "%5d %5d %-7.2f %7d %6d %7.1f %-6.2f %-6.3f\n\ %5d %-7.2f %7d %7.1f %-6.2f %-6.3f\n\n"; int messages_recvd; float elapsed_time, local_cpu_utilization, remote_cpu_utilization; float local_service_demand, remote_service_demand; double local_thruput, remote_thruput; double bytes_sent; double bytes_recvd; int len; struct ring_elt *send_ring; int failed_sends; int failed_cows; int messages_sent; SOCKET data_socket; #ifdef WANT_INTERVALS int interval_count; #endif /* WANT_INTERVALS */ #ifdef DIRTY int *message_int_ptr; int i; #endif /* DIRTY */ struct sockaddr_un server; struct dg_stream_request_struct *dg_stream_request; struct dg_stream_response_struct *dg_stream_response; struct dg_stream_results_struct *dg_stream_results; dg_stream_request = (struct dg_stream_request_struct *)netperf_request.content.test_specific_data; dg_stream_response = (struct dg_stream_response_struct *)netperf_response.content.test_specific_data; dg_stream_results = (struct dg_stream_results_struct *)netperf_response.content.test_specific_data; /* since we are now disconnected from the code that established the */ /* control socket, and since we want to be able to use different */ /* protocols and such, we are passed the name of the remote host and */ /* must turn that into the test specific addressing information. */ bzero((char *)&server, sizeof(server)); server.sun_family = AF_UNIX; if ( print_headers ) { printf("DG UNIDIRECTIONAL SEND TEST\n"); if (local_cpu_usage || remote_cpu_usage) printf(cpu_title,format_units()); else printf(tput_title,format_units()); } failed_sends = 0; failed_cows = 0; messages_sent = 0; times_up = 0; /*set up the data socket */ data_socket = create_unix_socket(AF_UNIX, SOCK_DGRAM); if (data_socket == INVALID_SOCKET){ perror("dg_send: data socket"); exit(1); } /* now, we want to see if we need to set the send_size */ if (send_size == 0) { if (lss_size > 0) { send_size = (lss_size < UNIX_LENGTH_MAX ? lss_size : UNIX_LENGTH_MAX); } else { send_size = 4096; } } /* set-up the data buffer with the requested alignment and offset, */ /* most of the numbers here are just a hack to pick something nice */ /* and big in an attempt to never try to send a buffer a second time */ /* before it leaves the node...unless the user set the width */ /* explicitly. */ if (send_width == 0) send_width = 32; send_ring = allocate_buffer_ring(send_width, send_size, local_send_align, local_send_offset); /* At this point, we want to do things like disable DG checksumming */ /* and measure the cpu rate and all that so we are ready to go */ /* immediately after the test response message is delivered. */ /* if the user supplied a cpu rate, this call will complete rather */ /* quickly, otherwise, the cpu rate will be retured to us for */ /* possible display. The Library will keep it's own copy of this data */ /* for use elsewhere. We will only display it. (Does that make it */ /* "opaque" to us?) */ if (local_cpu_usage) local_cpu_rate = calibrate_local_cpu(local_cpu_rate); /* Tell the remote end to set up the data connection. The server */ /* sends back the port number and alters the socket parameters there. */ /* Of course this is a datagram service so no connection is actually */ /* set up, the server just sets up the socket and binds it. */ netperf_request.content.request_type = DO_DG_STREAM; dg_stream_request->recv_buf_size = rsr_size; dg_stream_request->message_size = send_size; dg_stream_request->recv_alignment = remote_recv_align; dg_stream_request->recv_offset = remote_recv_offset; dg_stream_request->measure_cpu = remote_cpu_usage; dg_stream_request->cpu_rate = remote_cpu_rate; dg_stream_request->test_length = test_time; send_request(); recv_response(); if (!netperf_response.content.serv_errno) { if (debug) fprintf(where,"send_dg_stream: remote data connection done.\n"); } else { Set_errno(netperf_response.content.serv_errno); perror("send_dg_stream: error on remote"); exit(1); } /* Place the port number returned by the remote into the sockaddr */ /* structure so our sends can be sent to the correct place. Also get */ /* some of the returned socket buffer information for user display. */ /* make sure that port numbers are in the proper order */ strcpy(server.sun_path,dg_stream_response->unix_path); rsr_size = dg_stream_response->recv_buf_size; rss_size = dg_stream_response->send_buf_size; remote_cpu_rate = dg_stream_response->cpu_rate; /* We "connect" up to the remote post to allow is to use the send */ /* call instead of the sendto call. Presumeably, this is a little */ /* simpler, and a little more efficient. I think that it also means */ /* that we can be informed of certain things, but am not sure yet... */ if (connect(data_socket, (struct sockaddr *)&server, sizeof(server)) == INVALID_SOCKET){ perror("send_dg_stream: data socket connect failed"); exit(1); } /* set up the timer to call us after test_time */ start_timer(test_time); /* Get the start count for the idle counter and the start time */ cpu_start(local_cpu_usage); #ifdef WANT_INTERVALS interval_count = interval_burst; #endif /* Send datagrams like there was no tomorrow. at somepoint it might */ /* be nice to set this up so that a quantity of bytes could be sent, */ /* but we still need some sort of end of test trigger on the receive */ /* side. that could be a select with a one second timeout, but then */ /* if there is a test where none of the data arrives for awile and */ /* then starts again, we would end the test too soon. something to */ /* think about... */ while (!times_up) { #ifdef DIRTY /* we want to dirty some number of consecutive integers in the buffer */ /* we are about to send. we may also want to bring some number of */ /* them cleanly into the cache. The clean ones will follow any dirty */ /* ones into the cache. */ message_int_ptr = (int *)(send_ring->buffer_ptr); for (i = 0; i < loc_dirty_count; i++) { *message_int_ptr = 4; message_int_ptr++; } for (i = 0; i < loc_clean_count; i++) { loc_dirty_count = *message_int_ptr; message_int_ptr++; } #endif /* DIRTY */ if ((len=send(data_socket, send_ring->buffer_ptr, send_size, 0)) != send_size) { if ((len >= 0) || (errno == EINTR)) break; if (errno == ENOBUFS) { failed_sends++; continue; } perror("dg_send: data send error"); exit(1); } messages_sent++; /* now we want to move our pointer to the next position in the */ /* data buffer... */ send_ring = send_ring->next; #ifdef WANT_INTERVALS /* in this case, the interval count is the count-down couter */ /* to decide to sleep for a little bit */ if ((interval_burst) && (--interval_count == 0)) { /* call the sleep routine for some milliseconds, if our */ /* timer popped while we were in there, we want to */ /* break out of the loop. */ if (msec_sleep(interval_wate)) { break; } interval_count = interval_burst; } #endif } /* This is a timed test, so the remote will be returning to us after */ /* a time. We should not need to send any "strange" messages to tell */ /* the remote that the test is completed, unless we decide to add a */ /* number of messages to the test. */ /* the test is over, so get stats and stuff */ cpu_stop(local_cpu_usage, &elapsed_time); /* Get the statistics from the remote end */ recv_response(); if (!netperf_response.content.serv_errno) { if (debug) fprintf(where,"send_dg_stream: remote results obtained\n"); } else { Set_errno(netperf_response.content.serv_errno); perror("send_dg_stream: error on remote"); exit(1); } bytes_sent = send_size * messages_sent; local_thruput = calc_thruput(bytes_sent); messages_recvd = dg_stream_results->messages_recvd; bytes_recvd = send_size * messages_recvd; /* we asume that the remote ran for as long as we did */ remote_thruput = calc_thruput(bytes_recvd); /* print the results for this socket and message size */ if (local_cpu_usage || remote_cpu_usage) { /* We must now do a little math for service demand and cpu */ /* utilization for the system(s) We pass zeros for the local */ /* cpu utilization and elapsed time to tell the routine to use */ /* the libraries own values for those. */ if (local_cpu_usage) { if (local_cpu_rate == 0.0) { fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n"); fprintf(where,"Local CPU usage numbers based on process information only!\n"); fflush(where); } local_cpu_utilization = calc_cpu_util(0.0); local_service_demand = calc_service_demand(bytes_sent, 0.0, 0.0, 0); } else { local_cpu_utilization = -1.0; local_service_demand = -1.0; } /* The local calculations could use variables being kept by */ /* the local netlib routines. The remote calcuations need to */ /* have a few things passed to them. */ if (remote_cpu_usage) { if (remote_cpu_rate == 0.0) { fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n"); fprintf(where,"REMOTE CPU usage numbers based on process information only!\n"); fflush(where); } remote_cpu_utilization = dg_stream_results->cpu_util; remote_service_demand = calc_service_demand(bytes_recvd, 0.0, remote_cpu_utilization, dg_stream_results->num_cpus); } else { remote_cpu_utilization = -1.0; remote_service_demand = -1.0; } /* We are now ready to print all the information. If the user */ /* has specified zero-level verbosity, we will just print the */ /* local service demand, or the remote service demand. If the */ /* user has requested verbosity level 1, he will get the basic */ /* "streamperf" numbers. If the user has specified a verbosity */ /* of greater than 1, we will display a veritable plethora of */ /* background information from outside of this block as it it */ /* not cpu_measurement specific... */ switch (verbosity) { case 0: if (local_cpu_usage) { fprintf(where, cpu_fmt_0, local_service_demand); } else { fprintf(where, cpu_fmt_0, remote_service_demand); } break; case 1: fprintf(where, cpu_fmt_1, /* the format string */ lss_size, /* local sendbuf size */ send_size, /* how large were the sends */ elapsed_time, /* how long was the test */ messages_sent, failed_sends, local_thruput, /* what was the xfer rate */ local_cpu_utilization, /* local cpu */ local_service_demand, /* local service demand */ rsr_size, elapsed_time, messages_recvd, remote_thruput, remote_cpu_utilization, /* remote cpu */ remote_service_demand); /* remote service demand */ break; } } else { /* The tester did not wish to measure service demand. */ switch (verbosity) { case 0: fprintf(where, tput_fmt_0, local_thruput); break; case 1: fprintf(where, tput_fmt_1, /* the format string */ lss_size, /* local sendbuf size */ send_size, /* how large were the sends */ elapsed_time, /* how long did it take */ messages_sent, failed_sends, local_thruput, rsr_size, /* remote recvbuf size */ elapsed_time, messages_recvd, remote_thruput ); break; } } } /* this routine implements the receive side (netserver) of the */ /* DG_STREAM performance test. */ void recv_dg_stream() { struct ring_elt *recv_ring; struct sockaddr_un myaddr_un; SOCKET s_data; int len = 0; int bytes_received = 0; float elapsed_time; int message_size; int messages_recvd = 0; struct dg_stream_request_struct *dg_stream_request; struct dg_stream_response_struct *dg_stream_response; struct dg_stream_results_struct *dg_stream_results; dg_stream_request = (struct dg_stream_request_struct *)netperf_request.content.test_specific_data; dg_stream_response = (struct dg_stream_response_struct *)netperf_response.content.test_specific_data; dg_stream_results = (struct dg_stream_results_struct *)netperf_response.content.test_specific_data; if (debug) { fprintf(where,"netserver: recv_dg_stream: entered...\n"); fflush(where); } /* We want to set-up the listen socket with all the desired */ /* parameters and then let the initiator know that all is ready. If */ /* socket size defaults are to be used, then the initiator will have */ /* sent us 0's. If the socket sizes cannot be changed, then we will */ /* send-back what they are. If that information cannot be determined, */ /* then we send-back -1's for the sizes. If things go wrong for any */ /* reason, we will drop back ten yards and punt. */ /* If anything goes wrong, we want the remote to know about it. It */ /* would be best if the error that the remote reports to the user is */ /* the actual error we encountered, rather than some bogus unexpected */ /* response type message. */ if (debug > 1) { fprintf(where,"recv_dg_stream: setting the response type...\n"); fflush(where); } netperf_response.content.response_type = DG_STREAM_RESPONSE; if (debug > 2) { fprintf(where,"recv_dg_stream: the response type is set...\n"); fflush(where); } /* We now alter the message_ptr variable to be at the desired */ /* alignment with the desired offset. */ if (debug > 1) { fprintf(where,"recv_dg_stream: requested alignment of %d\n", dg_stream_request->recv_alignment); fflush(where); } if (recv_width == 0) recv_width = 1; recv_ring = allocate_buffer_ring(recv_width, dg_stream_request->message_size, dg_stream_request->recv_alignment, dg_stream_request->recv_offset); if (debug > 1) { fprintf(where,"recv_dg_stream: receive alignment and offset set...\n"); fflush(where); } /* Let's clear-out our sockaddr for the sake of cleanlines. Then we */ /* can put in OUR values !-) At some point, we may want to nail this */ /* socket to a particular network-level address, but for now, */ /* INADDR_ANY should be just fine. */ bzero((char *)&myaddr_un, sizeof(myaddr_un)); myaddr_un.sun_family = AF_UNIX; /* Grab a socket to listen on, and then listen on it. */ if (debug > 1) { fprintf(where,"recv_dg_stream: grabbing a socket...\n"); fflush(where); } /* create_unix_socket expects to find some things in the global */ /* variables, so set the globals based on the values in the request. */ /* once the socket has been created, we will set the response values */ /* based on the updated value of those globals. raj 7/94 */ lsr_size = dg_stream_request->recv_buf_size; s_data = create_unix_socket(AF_UNIX, SOCK_DGRAM); if (s_data == INVALID_SOCKET) { netperf_response.content.serv_errno = errno; send_response(); exit(1); } /* Let's get an address assigned to this socket so we can tell the */ /* initiator how to reach the data socket. There may be a desire to */ /* nail this socket to a specific IP address in a multi-homed, */ /* multi-connection situation, but for now, we'll ignore the issue */ /* and concentrate on single connection testing. */ strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf.")); if (bind(s_data, (struct sockaddr *)&myaddr_un, sizeof(myaddr_un)) == SOCKET_ERROR) { netperf_response.content.serv_errno = errno; send_response(); exit(1); } chmod(myaddr_un.sun_path, 0666); dg_stream_response->test_length = dg_stream_request->test_length; /* Now myaddr_un contains the port and the internet address this is */ /* returned to the sender also implicitly telling the sender that the */ /* socket buffer sizing has been done. */ strcpy(dg_stream_response->unix_path,myaddr_un.sun_path); netperf_response.content.serv_errno = 0; /* But wait, there's more. If the initiator wanted cpu measurements, */ /* then we must call the calibrate routine, which will return the max */ /* rate back to the initiator. If the CPU was not to be measured, or */ /* something went wrong with the calibration, we will return a -1 to */ /* the initiator. */ dg_stream_response->cpu_rate = 0.0; /* assume no cpu */ if (dg_stream_request->measure_cpu) { /* We will pass the rate into the calibration routine. If the */ /* user did not specify one, it will be 0.0, and we will do a */ /* "real" calibration. Otherwise, all it will really do is */ /* store it away... */ dg_stream_response->measure_cpu = 1; dg_stream_response->cpu_rate = calibrate_local_cpu(dg_stream_request->cpu_rate); } message_size = dg_stream_request->message_size; test_time = dg_stream_request->test_length; /* before we send the response back to the initiator, pull some of */ /* the socket parms from the globals */ dg_stream_response->send_buf_size = lss_size; dg_stream_response->recv_buf_size = lsr_size; send_response(); /* Now it's time to start receiving data on the connection. We will */ /* first grab the apropriate counters and then start grabbing. */ cpu_start(dg_stream_request->measure_cpu); /* The loop will exit when the timer pops, or if we happen to recv a */ /* message of less than send_size bytes... */ times_up = 0; start_timer(test_time + PAD_TIME); if (debug) { fprintf(where,"recv_dg_stream: about to enter inner sanctum.\n"); fflush(where); } while (!times_up) { if ((len = recv(s_data, recv_ring->buffer_ptr, message_size, 0)) != message_size) { if ((len == SOCKET_ERROR) && (errno != EINTR)) { netperf_response.content.serv_errno = errno; send_response(); exit(1); } break; } messages_recvd++; recv_ring = recv_ring->next; } if (debug) { fprintf(where,"recv_dg_stream: got %d messages.\n",messages_recvd); fflush(where); } /* The loop now exits due timer or < send_size bytes received. */ cpu_stop(dg_stream_request->measure_cpu,&elapsed_time); if (times_up) { /* we ended on a timer, subtract the PAD_TIME */ elapsed_time -= (float)PAD_TIME; } else { stop_timer(); } if (debug) { fprintf(where,"recv_dg_stream: test ended in %f seconds.\n",elapsed_time); fflush(where); } /* We will count the "off" message that got us out of the loop */ bytes_received = (messages_recvd * message_size) + len; /* send the results to the sender */ if (debug) { fprintf(where, "recv_dg_stream: got %d bytes\n", bytes_received); fflush(where); } netperf_response.content.response_type = DG_STREAM_RESULTS; dg_stream_results->bytes_received = bytes_received; dg_stream_results->messages_recvd = messages_recvd; dg_stream_results->elapsed_time = elapsed_time; if (dg_stream_request->measure_cpu) { dg_stream_results->cpu_util = calc_cpu_util(elapsed_time); } else { dg_stream_results->cpu_util = -1.0; } if (debug > 1) { fprintf(where, "recv_dg_stream: test complete, sending results.\n"); fflush(where); } send_response(); } void send_dg_rr(char remote_host[]) { char *tput_title = "\ Local /Remote\n\ Socket Size Request Resp. Elapsed Trans.\n\ Send Recv Size Size Time Rate \n\ bytes Bytes bytes bytes secs. per sec \n\n"; char *tput_fmt_0 = "%7.2f\n"; char *tput_fmt_1_line_1 = "\ %-6d %-6d %-6d %-6d %-6.2f %7.2f \n"; char *tput_fmt_1_line_2 = "\ %-6d %-6d\n"; char *cpu_title = "\ Local /Remote\n\ Socket Size Request Resp. Elapsed Trans. CPU CPU S.dem S.dem\n\ Send Recv Size Size Time Rate local remote local remote\n\ bytes bytes bytes bytes secs. per sec %% %% us/Tr us/Tr\n\n"; char *cpu_fmt_0 = "%6.3f\n"; char *cpu_fmt_1_line_1 = "\ %-6d %-6d %-6d %-6d %-6.2f %-6.2f %-6.2f %-6.2f %-6.3f %-6.3f\n"; char *cpu_fmt_1_line_2 = "\ %-6d %-6d\n"; float elapsed_time; /* we add MAXALIGNMENT and MAXOFFSET to insure that there is enough */ /* space for a maximally aligned, maximally sized message. At some */ /* point, we may want to actually make this even larger and cycle */ /* through the thing one piece at a time.*/ int len; char *send_message_ptr; char *recv_message_ptr; char *temp_message_ptr; int nummessages; SOCKET send_socket; int trans_remaining; int bytes_xferd; int rsp_bytes_recvd; float local_cpu_utilization; float local_service_demand; float remote_cpu_utilization; float remote_service_demand; double thruput; #ifdef WANT_INTERVALS /* timing stuff */ #define MAX_KEPT_TIMES 1024 int time_index = 0; int unused_buckets; int kept_times[MAX_KEPT_TIMES]; int sleep_usecs; unsigned int total_times=0; struct timezone dummy_zone; struct timeval send_time; struct timeval recv_time; struct timeval sleep_timeval; #endif struct sockaddr_un server, myaddr_un; struct dg_rr_request_struct *dg_rr_request; struct dg_rr_response_struct *dg_rr_response; struct dg_rr_results_struct *dg_rr_result; dg_rr_request = (struct dg_rr_request_struct *)netperf_request.content.test_specific_data; dg_rr_response= (struct dg_rr_response_struct *)netperf_response.content.test_specific_data; dg_rr_result = (struct dg_rr_results_struct *)netperf_response.content.test_specific_data; /* we want to zero out the times, so we can detect unused entries. */ #ifdef WANT_INTERVALS time_index = 0; while (time_index < MAX_KEPT_TIMES) { kept_times[time_index] = 0; time_index += 1; } time_index = 0; #endif /* since we are now disconnected from the code that established the */ /* control socket, and since we want to be able to use different */ /* protocols and such, we are passed the name of the remote host and */ /* must turn that into the test specific addressing information. */ bzero((char *)&server, sizeof(server)); server.sun_family = AF_UNIX; bzero((char *)&myaddr_un, sizeof(myaddr_un)); myaddr_un.sun_family = AF_UNIX; strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf.")); if ( print_headers ) { fprintf(where,"DG REQUEST/RESPONSE TEST\n"); if (local_cpu_usage || remote_cpu_usage) fprintf(where,cpu_title,format_units()); else fprintf(where,tput_title,format_units()); } /* initialize a few counters */ nummessages = 0; bytes_xferd = 0; times_up = 0; /* set-up the data buffer with the requested alignment and offset */ temp_message_ptr = (char *)malloc(DATABUFFERLEN); if (temp_message_ptr == NULL) { printf("malloc(%d) failed!\n", DATABUFFERLEN); exit(1); } send_message_ptr = (char *)(( (long)temp_message_ptr + (long) local_send_align - 1) & ~((long) local_send_align - 1)); send_message_ptr = send_message_ptr + local_send_offset; temp_message_ptr = (char *)malloc(DATABUFFERLEN); if (temp_message_ptr == NULL) { printf("malloc(%d) failed!\n", DATABUFFERLEN); exit(1); } recv_message_ptr = (char *)(( (long)temp_message_ptr + (long) local_recv_align - 1) & ~((long) local_recv_align - 1)); recv_message_ptr = recv_message_ptr + local_recv_offset; /*set up the data socket */ send_socket = create_unix_socket(AF_UNIX, SOCK_DGRAM); if (send_socket == INVALID_SOCKET){ perror("netperf: send_dg_rr: dg rr data socket"); exit(1); } if (debug) { fprintf(where,"send_dg_rr: send_socket obtained...\n"); } /* If the user has requested cpu utilization measurements, we must */ /* calibrate the cpu(s). We will perform this task within the tests */ /* themselves. If the user has specified the cpu rate, then */ /* calibrate_local_cpu will return rather quickly as it will have */ /* nothing to do. If local_cpu_rate is zero, then we will go through */ /* all the "normal" calibration stuff and return the rate back. If */ /* there is no idle counter in the kernel idle loop, the */ /* local_cpu_rate will be set to -1. */ if (local_cpu_usage) { local_cpu_rate = calibrate_local_cpu(local_cpu_rate); } /* Tell the remote end to do a listen. The server alters the socket */ /* paramters on the other side at this point, hence the reason for */ /* all the values being passed in the setup message. If the user did */ /* not specify any of the parameters, they will be passed as 0, which */ /* will indicate to the remote that no changes beyond the system's */ /* default should be used. Alignment is the exception, it will */ /* default to 8, which will be no alignment alterations. */ netperf_request.content.request_type = DO_DG_RR; dg_rr_request->recv_buf_size = rsr_size; dg_rr_request->send_buf_size = rss_size; dg_rr_request->recv_alignment = remote_recv_align; dg_rr_request->recv_offset = remote_recv_offset; dg_rr_request->send_alignment = remote_send_align; dg_rr_request->send_offset = remote_send_offset; dg_rr_request->request_size = req_size; dg_rr_request->response_size = rsp_size; dg_rr_request->measure_cpu = remote_cpu_usage; dg_rr_request->cpu_rate = remote_cpu_rate; if (test_time) { dg_rr_request->test_length = test_time; } else { dg_rr_request->test_length = test_trans * -1; } if (debug > 1) { fprintf(where,"netperf: send_dg_rr: requesting DG request/response test\n"); } send_request(); /* The response from the remote will contain all of the relevant */ /* socket parameters for this test type. We will put them back into */ /* the variables here so they can be displayed if desired. The */ /* remote will have calibrated CPU if necessary, and will have done */ /* all the needed set-up we will have calibrated the cpu locally */ /* before sending the request, and will grab the counter value right */ /* after the connect returns. The remote will grab the counter right */ /* after the accept call. This saves the hassle of extra messages */ /* being sent for the DG tests. */ recv_response(); if (!netperf_response.content.serv_errno) { if (debug) fprintf(where,"remote listen done.\n"); rsr_size = dg_rr_response->recv_buf_size; rss_size = dg_rr_response->send_buf_size; remote_cpu_usage= dg_rr_response->measure_cpu; remote_cpu_rate = dg_rr_response->cpu_rate; /* port numbers in proper order */ strcpy(server.sun_path,dg_rr_response->unix_path); } else { Set_errno(netperf_response.content.serv_errno); perror("netperf: remote error"); exit(1); } /* Connect up to the remote port on the data socket. This will set */ /* the default destination address on this socket. we need to bind */ /* out socket so that the remote gets something from a recvfrom */ if (bind(send_socket, (struct sockaddr *)&myaddr_un, sizeof(myaddr_un)) == SOCKET_ERROR) { perror("netperf: send_dg_rr"); unlink(myaddr_un.sun_path); close(send_socket); exit(1); } if (connect(send_socket, (struct sockaddr *)&server, sizeof(server)) == INVALID_SOCKET ) { perror("netperf: data socket connect failed"); exit(1); } /* Data Socket set-up is finished. If there were problems, either the */ /* connect would have failed, or the previous response would have */ /* indicated a problem. I failed to see the value of the extra */ /* message after the accept on the remote. If it failed, we'll see it */ /* here. If it didn't, we might as well start pumping data. */ /* Set-up the test end conditions. For a request/response test, they */ /* can be either time or transaction based. */ if (test_time) { /* The user wanted to end the test after a period of time. */ times_up = 0; trans_remaining = 0; start_timer(test_time); } else { /* The tester wanted to send a number of bytes. */ trans_remaining = test_bytes; times_up = 1; } /* The cpu_start routine will grab the current time and possibly */ /* value of the idle counter for later use in measuring cpu */ /* utilization and/or service demand and thruput. */ cpu_start(local_cpu_usage); /* We use an "OR" to control test execution. When the test is */ /* controlled by time, the byte count check will always return false. */ /* When the test is controlled by byte count, the time test will */ /* always return false. When the test is finished, the whole */ /* expression will go false and we will stop sending data. I think I */ /* just arbitrarily decrement trans_remaining for the timed test, but */ /* will not do that just yet... One other question is whether or not */ /* the send buffer and the receive buffer should be the same buffer. */ while ((!times_up) || (trans_remaining > 0)) { /* send the request */ #ifdef WANT_INTERVALS gettimeofday(&send_time,&dummy_zone); #endif if((len=send(send_socket, send_message_ptr, req_size, 0)) != req_size) { if (errno == EINTR) { /* We likely hit */ /* test-end time. */ break; } perror("send_dg_rr: data send error"); exit(1); } /* receive the response. with DG we will get it all, or nothing */ if((rsp_bytes_recvd=recv(send_socket, recv_message_ptr, rsp_size, 0)) != rsp_size) { if (errno == EINTR) { /* Again, we have likely hit test-end time */ break; } perror("send_dg_rr: data recv error"); exit(1); } #ifdef WANT_INTERVALS gettimeofday(&recv_time,&dummy_zone); /* now we do some arithmatic on the two timevals */ if (recv_time.tv_usec < send_time.tv_usec) { /* we wrapped around a second */ recv_time.tv_usec += 1000000; recv_time.tv_sec -= 1; } /* and store it away */ kept_times[time_index] = (recv_time.tv_sec - send_time.tv_sec) * 1000000; kept_times[time_index] += (recv_time.tv_usec - send_time.tv_usec); /* at this point, we may wish to sleep for some period of */ /* time, so we see how long that last transaction just took, */ /* and sleep for the difference of that and the interval. We */ /* will not sleep if the time would be less than a */ /* millisecond. */ if (interval_usecs > 0) { sleep_usecs = interval_usecs - kept_times[time_index]; if (sleep_usecs > 1000) { /* we sleep */ sleep_timeval.tv_sec = sleep_usecs / 1000000; sleep_timeval.tv_usec = sleep_usecs % 1000000; select(0, 0, 0, 0, &sleep_timeval); } } /* now up the time index */ time_index = (time_index +1)%MAX_KEPT_TIMES; #endif nummessages++; if (trans_remaining) { trans_remaining--; } if (debug > 3) { fprintf(where,"Transaction %d completed\n",nummessages); fflush(where); } } /* The test is over. Flush the buffers to the remote end. We do a */ /* graceful release to insure that all data has been taken by the */ /* remote. Of course, since this was a request/response test, there */ /* should be no data outstanding on the socket ;-) */ if (shutdown(send_socket,1) == SOCKET_ERROR) { perror("netperf: cannot shutdown dg stream socket"); exit(1); } /* this call will always give us the elapsed time for the test, and */ /* will also store-away the necessaries for cpu utilization */ cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being measured? */ /* how long did we really run? */ /* Get the statistics from the remote end. The remote will have */ /* calculated service demand and all those interesting things. If it */ /* wasn't supposed to care, it will return obvious values. */ recv_response(); if (!netperf_response.content.serv_errno) { if (debug) fprintf(where,"remote results obtained\n"); } else { Set_errno(netperf_response.content.serv_errno); perror("netperf: remote error"); exit(1); } /* We now calculate what our thruput was for the test. In the future, */ /* we may want to include a calculation of the thruput measured by */ /* the remote, but it should be the case that for a DG stream test, */ /* that the two numbers should be *very* close... We calculate */ /* bytes_sent regardless of the way the test length was controlled. */ /* If it was time, we needed to, and if it was by bytes, the user may */ /* have specified a number of bytes that wasn't a multiple of the */ /* send_size, so we really didn't send what he asked for ;-) We use */ bytes_xferd = (req_size * nummessages) + (rsp_size * nummessages); thruput = calc_thruput(bytes_xferd); if (local_cpu_usage || remote_cpu_usage) { /* We must now do a little math for service demand and cpu */ /* utilization for the system(s) */ /* Of course, some of the information might be bogus because */ /* there was no idle counter in the kernel(s). We need to make */ /* a note of this for the user's benefit...*/ if (local_cpu_usage) { if (local_cpu_rate == 0.0) { fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n"); fprintf(where,"Local CPU usage numbers based on process information only!\n"); fflush(where); } local_cpu_utilization = calc_cpu_util(0.0); /* since calc_service demand is doing ms/Kunit we will */ /* multiply the number of transaction by 1024 to get */ /* "good" numbers */ local_service_demand = calc_service_demand((double) nummessages*1024, 0.0, 0.0, 0); } else { local_cpu_utilization = -1.0; local_service_demand = -1.0; } if (remote_cpu_usage) { if (remote_cpu_rate == 0.0) { fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n"); fprintf(where,"Remote CPU usage numbers based on process information only!\n"); fflush(where); } remote_cpu_utilization = dg_rr_result->cpu_util; /* since calc_service demand is doing ms/Kunit we will */ /* multiply the number of transaction by 1024 to get */ /* "good" numbers */ remote_service_demand = calc_service_demand((double) nummessages*1024, 0.0, remote_cpu_utilization, dg_rr_result->num_cpus); } else { remote_cpu_utilization = -1.0; remote_service_demand = -1.0; } /* We are now ready to print all the information. If the user */ /* has specified zero-level verbosity, we will just print the */ /* local service demand, or the remote service demand. If the */ /* user has requested verbosity level 1, he will get the basic */ /* "streamperf" numbers. If the user has specified a verbosity */ /* of greater than 1, we will display a veritable plethora of */ /* background information from outside of this block as it it */ /* not cpu_measurement specific... */ switch (verbosity) { case 0: if (local_cpu_usage) { fprintf(where, cpu_fmt_0, local_service_demand); } else { fprintf(where, cpu_fmt_0, remote_service_demand); } break; case 1: case 2: fprintf(where, cpu_fmt_1_line_1, /* the format string */ lss_size, /* local sendbuf size */ lsr_size, req_size, /* how large were the requests */ rsp_size, /* guess */ elapsed_time, /* how long was the test */ nummessages/elapsed_time, local_cpu_utilization, /* local cpu */ remote_cpu_utilization, /* remote cpu */ local_service_demand, /* local service demand */ remote_service_demand); /* remote service demand */ fprintf(where, cpu_fmt_1_line_2, rss_size, rsr_size); break; } } else { /* The tester did not wish to measure service demand. */ switch (verbosity) { case 0: fprintf(where, tput_fmt_0, nummessages/elapsed_time); break; case 1: case 2: fprintf(where, tput_fmt_1_line_1, /* the format string */ lss_size, lsr_size, req_size, /* how large were the requests */ rsp_size, /* how large were the responses */ elapsed_time, /* how long did it take */ nummessages/elapsed_time); fprintf(where, tput_fmt_1_line_2, rss_size, /* remote recvbuf size */ rsr_size); break; } } /* it would be a good thing to include information about some of the */ /* other parameters that may have been set for this test, but at the */ /* moment, I do not wish to figure-out all the formatting, so I will */ /* just put this comment here to help remind me that it is something */ /* that should be done at a later time. */ if (verbosity > 1) { /* The user wanted to know it all, so we will give it to him. */ /* This information will include as much as we can find about */ /* DG statistics, the alignments of the sends and receives */ /* and all that sort of rot... */ #ifdef WANT_INTERVALS kept_times[MAX_KEPT_TIMES] = 0; time_index = 0; while (time_index < MAX_KEPT_TIMES) { if (kept_times[time_index] > 0) { total_times += kept_times[time_index]; } else unused_buckets++; time_index += 1; } total_times /= (MAX_KEPT_TIMES-unused_buckets); fprintf(where, "Average response time %d usecs\n", total_times); #endif } unlink(myaddr_un.sun_path); } /* this routine implements the receive side (netserver) of a DG_RR */ /* test. */ void recv_dg_rr() { struct ring_elt *recv_ring; struct ring_elt *send_ring; struct sockaddr_un myaddr_un, peeraddr_un; SOCKET s_data; int addrlen; int trans_received = 0; int trans_remaining; float elapsed_time; struct dg_rr_request_struct *dg_rr_request; struct dg_rr_response_struct *dg_rr_response; struct dg_rr_results_struct *dg_rr_results; dg_rr_request = (struct dg_rr_request_struct *)netperf_request.content.test_specific_data; dg_rr_response = (struct dg_rr_response_struct *)netperf_response.content.test_specific_data; dg_rr_results = (struct dg_rr_results_struct *)netperf_response.content.test_specific_data; if (debug) { fprintf(where,"netserver: recv_dg_rr: entered...\n"); fflush(where); } /* We want to set-up the listen socket with all the desired */ /* parameters and then let the initiator know that all is ready. If */ /* socket size defaults are to be used, then the initiator will have */ /* sent us 0's. If the socket sizes cannot be changed, then we will */ /* send-back what they are. If that information cannot be determined, */ /* then we send-back -1's for the sizes. If things go wrong for any */ /* reason, we will drop back ten yards and punt. */ /* If anything goes wrong, we want the remote to know about it. It */ /* would be best if the error that the remote reports to the user is */ /* the actual error we encountered, rather than some bogus unexpected */ /* response type message. */ if (debug) { fprintf(where,"recv_dg_rr: setting the response type...\n"); fflush(where); } netperf_response.content.response_type = DG_RR_RESPONSE; if (debug) { fprintf(where,"recv_dg_rr: the response type is set...\n"); fflush(where); } /* We now alter the message_ptr variables to be at the desired */ /* alignments with the desired offsets. */ if (debug) { fprintf(where,"recv_dg_rr: requested recv alignment of %d offset %d\n", dg_rr_request->recv_alignment, dg_rr_request->recv_offset); fprintf(where,"recv_dg_rr: requested send alignment of %d offset %d\n", dg_rr_request->send_alignment, dg_rr_request->send_offset); fflush(where); } if (send_width == 0) send_width = 1; if (recv_width == 0) recv_width = 1; recv_ring = allocate_buffer_ring(recv_width, dg_rr_request->request_size, dg_rr_request->recv_alignment, dg_rr_request->recv_offset); send_ring = allocate_buffer_ring(send_width, dg_rr_request->response_size, dg_rr_request->send_alignment, dg_rr_request->send_offset); if (debug) { fprintf(where,"recv_dg_rr: receive alignment and offset set...\n"); fflush(where); } /* Let's clear-out our sockaddr for the sake of cleanlines. Then we */ /* can put in OUR values !-) At some point, we may want to nail this */ /* socket to a particular network-level address, but for now, */ /* INADDR_ANY should be just fine. */ bzero((char *)&myaddr_un, sizeof(myaddr_un)); myaddr_un.sun_family = AF_UNIX; /* Grab a socket to listen on, and then listen on it. */ if (debug) { fprintf(where,"recv_dg_rr: grabbing a socket...\n"); fflush(where); } /* create_unix_socket expects to find some things in the global */ /* variables, so set the globals based on the values in the request. */ /* once the socket has been created, we will set the response values */ /* based on the updated value of those globals. raj 7/94 */ lss_size_req = dg_rr_request->send_buf_size; lsr_size_req = dg_rr_request->recv_buf_size; s_data = create_unix_socket(AF_UNIX, SOCK_DGRAM); if (s_data == INVALID_SOCKET) { netperf_response.content.serv_errno = errno; send_response(); exit(1); } /* Let's get an address assigned to this socket so we can tell the */ /* initiator how to reach the data socket. There may be a desire to */ /* nail this socket to a specific IP address in a multi-homed, */ /* multi-connection situation, but for now, we'll ignore the issue */ /* and concentrate on single connection testing. */ strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf.")); if (bind(s_data, (struct sockaddr *)&myaddr_un, sizeof(myaddr_un)) == SOCKET_ERROR) { netperf_response.content.serv_errno = errno; unlink(myaddr_un.sun_path); close(s_data); send_response(); exit(1); } /* Now myaddr_un contains the port and the internet address this is */ /* returned to the sender also implicitly telling the sender that the */ /* socket buffer sizing has been done. */ strcpy(dg_rr_response->unix_path,myaddr_un.sun_path); netperf_response.content.serv_errno = 0; /* But wait, there's more. If the initiator wanted cpu measurements, */ /* then we must call the calibrate routine, which will return the max */ /* rate back to the initiator. If the CPU was not to be measured, or */ /* something went wrong with the calibration, we will return a 0.0 to */ /* the initiator. */ dg_rr_response->cpu_rate = 0.0; /* assume no cpu */ if (dg_rr_request->measure_cpu) { dg_rr_response->measure_cpu = 1; dg_rr_response->cpu_rate = calibrate_local_cpu(dg_rr_request->cpu_rate); } /* before we send the response back to the initiator, pull some of */ /* the socket parms from the globals */ dg_rr_response->send_buf_size = lss_size; dg_rr_response->recv_buf_size = lsr_size; send_response(); /* Now it's time to start receiving data on the connection. We will */ /* first grab the apropriate counters and then start grabbing. */ cpu_start(dg_rr_request->measure_cpu); if (dg_rr_request->test_length > 0) { times_up = 0; trans_remaining = 0; start_timer(dg_rr_request->test_length + PAD_TIME); } else { times_up = 1; trans_remaining = dg_rr_request->test_length * -1; } addrlen = sizeof(peeraddr_un); bzero((char *)&peeraddr_un, addrlen); while ((!times_up) || (trans_remaining > 0)) { /* receive the request from the other side */ fprintf(where,"socket %d ptr %p size %d\n", s_data, recv_ring->buffer_ptr, dg_rr_request->request_size); fflush(where); if (recvfrom(s_data, recv_ring->buffer_ptr, dg_rr_request->request_size, 0, (struct sockaddr *)&peeraddr_un, &addrlen) != dg_rr_request->request_size) { if (errno == EINTR) { /* we must have hit the end of test time. */ break; } netperf_response.content.serv_errno = errno; fprintf(where,"error on recvfrom errno %d\n",errno); fflush(where); send_response(); unlink(myaddr_un.sun_path); exit(1); } recv_ring = recv_ring->next; /* Now, send the response to the remote */ if (sendto(s_data, send_ring->buffer_ptr, dg_rr_request->response_size, 0, (struct sockaddr *)&peeraddr_un, addrlen) != dg_rr_request->response_size) { if (errno == EINTR) { /* we have hit end of test time. */ break; } netperf_response.content.serv_errno = errno; fprintf(where,"error on recvfrom errno %d\n",errno); fflush(where); unlink(myaddr_un.sun_path); send_response(); exit(1); } send_ring = send_ring->next; trans_received++; if (trans_remaining) { trans_remaining--; } if (debug) { fprintf(where, "recv_dg_rr: Transaction %d complete.\n", trans_received); fflush(where); } } /* The loop now exits due to timeout or transaction count being */ /* reached */ cpu_stop(dg_rr_request->measure_cpu,&elapsed_time); if (times_up) { /* we ended the test by time, which was at least 2 seconds */ /* longer than we wanted to run. so, we want to subtract */ /* PAD_TIME from the elapsed_time. */ elapsed_time -= PAD_TIME; } /* send the results to the sender */ if (debug) { fprintf(where, "recv_dg_rr: got %d transactions\n", trans_received); fflush(where); } dg_rr_results->bytes_received = (trans_received * (dg_rr_request->request_size + dg_rr_request->response_size)); dg_rr_results->trans_received = trans_received; dg_rr_results->elapsed_time = elapsed_time; if (dg_rr_request->measure_cpu) { dg_rr_results->cpu_util = calc_cpu_util(elapsed_time); } if (debug) { fprintf(where, "recv_dg_rr: test complete, sending results.\n"); fflush(where); } send_response(); unlink(myaddr_un.sun_path); } /* this routine implements the receive (netserver) side of a STREAM_RR */ /* test */ void recv_stream_rr() { struct ring_elt *send_ring; struct ring_elt *recv_ring; struct sockaddr_un myaddr_un, peeraddr_un; SOCKET s_listen,s_data; int addrlen; char *temp_message_ptr; int trans_received = 0; int trans_remaining; int bytes_sent; int request_bytes_recvd; int request_bytes_remaining; int timed_out = 0; float elapsed_time; struct stream_rr_request_struct *stream_rr_request; struct stream_rr_response_struct *stream_rr_response; struct stream_rr_results_struct *stream_rr_results; stream_rr_request = (struct stream_rr_request_struct *)netperf_request.content.test_specific_data; stream_rr_response = (struct stream_rr_response_struct *)netperf_response.content.test_specific_data; stream_rr_results = (struct stream_rr_results_struct *)netperf_response.content.test_specific_data; if (debug) { fprintf(where,"netserver: recv_stream_rr: entered...\n"); fflush(where); } /* We want to set-up the listen socket with all the desired */ /* parameters and then let the initiator know that all is ready. If */ /* socket size defaults are to be used, then the initiator will have */ /* sent us 0's. If the socket sizes cannot be changed, then we will */ /* send-back what they are. If that information cannot be determined, */ /* then we send-back -1's for the sizes. If things go wrong for any */ /* reason, we will drop back ten yards and punt. */ /* If anything goes wrong, we want the remote to know about it. It */ /* would be best if the error that the remote reports to the user is */ /* the actual error we encountered, rather than some bogus unexpected */ /* response type message. */ if (debug) { fprintf(where,"recv_stream_rr: setting the response type...\n"); fflush(where); } netperf_response.content.response_type = STREAM_RR_RESPONSE; if (debug) { fprintf(where,"recv_stream_rr: the response type is set...\n"); fflush(where); } /* allocate the recv and send rings with the requested alignments */ /* and offsets. raj 7/94 */ if (debug) { fprintf(where,"recv_stream_rr: requested recv alignment of %d offset %d\n", stream_rr_request->recv_alignment, stream_rr_request->recv_offset); fprintf(where,"recv_stream_rr: requested send alignment of %d offset %d\n", stream_rr_request->send_alignment, stream_rr_request->send_offset); fflush(where); } /* at some point, these need to come to us from the remote system */ if (send_width == 0) send_width = 1; if (recv_width == 0) recv_width = 1; send_ring = allocate_buffer_ring(send_width, stream_rr_request->response_size, stream_rr_request->send_alignment, stream_rr_request->send_offset); recv_ring = allocate_buffer_ring(recv_width, stream_rr_request->request_size, stream_rr_request->recv_alignment, stream_rr_request->recv_offset); /* Let's clear-out our sockaddr for the sake of cleanlines. Then we */ /* can put in OUR values !-) At some point, we may want to nail this */ /* socket to a particular network-level address, but for now, */ /* INADDR_ANY should be just fine. */ bzero((char *)&myaddr_un, sizeof(myaddr_un)); myaddr_un.sun_family = AF_UNIX; /* Grab a socket to listen on, and then listen on it. */ if (debug) { fprintf(where,"recv_stream_rr: grabbing a socket...\n"); fflush(where); } /* create_unix_socket expects to find some things in the global */ /* variables, so set the globals based on the values in the request. */ /* once the socket has been created, we will set the response values */ /* based on the updated value of those globals. raj 7/94 */ lss_size_req = stream_rr_request->send_buf_size; lsr_size_req = stream_rr_request->recv_buf_size; s_listen = create_unix_socket(AF_UNIX, SOCK_STREAM); if (s_listen == INVALID_SOCKET) { netperf_response.content.serv_errno = errno; send_response(); exit(1); } /* Let's get an address assigned to this socket so we can tell the */ /* initiator how to reach the data socket. There may be a desire to */ /* nail this socket to a specific IP address in a multi-homed, */ /* multi-connection situation, but for now, we'll ignore the issue */ /* and concentrate on single connection testing. */ strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf.")); if (bind(s_listen, (struct sockaddr *)&myaddr_un, sizeof(myaddr_un)) == SOCKET_ERROR) { netperf_response.content.serv_errno = errno; unlink(myaddr_un.sun_path); close(s_listen); send_response(); exit(1); } /* Now, let's set-up the socket to listen for connections */ if (listen(s_listen, 5) == SOCKET_ERROR) { netperf_response.content.serv_errno = errno; close(s_listen); send_response(); exit(1); } /* Now myaddr_un contains the port and the internet address this is */ /* returned to the sender also implicitly telling the sender that the */ /* socket buffer sizing has been done. */ strcpy(stream_rr_response->unix_path,myaddr_un.sun_path); netperf_response.content.serv_errno = 0; /* But wait, there's more. If the initiator wanted cpu measurements, */ /* then we must call the calibrate routine, which will return the max */ /* rate back to the initiator. If the CPU was not to be measured, or */ /* something went wrong with the calibration, we will return a 0.0 to */ /* the initiator. */ stream_rr_response->cpu_rate = 0.0; /* assume no cpu */ if (stream_rr_request->measure_cpu) { stream_rr_response->measure_cpu = 1; stream_rr_response->cpu_rate = calibrate_local_cpu(stream_rr_request->cpu_rate); } /* before we send the response back to the initiator, pull some of */ /* the socket parms from the globals */ stream_rr_response->send_buf_size = lss_size; stream_rr_response->recv_buf_size = lsr_size; send_response(); addrlen = sizeof(peeraddr_un); if ((s_data = accept(s_listen, (struct sockaddr *)&peeraddr_un, &addrlen)) == INVALID_SOCKET) { /* Let's just punt. The remote will be given some information */ close(s_listen); exit(1); } if (debug) { fprintf(where,"recv_stream_rr: accept completes on the data connection.\n"); fflush(where); } /* Now it's time to start receiving data on the connection. We will */ /* first grab the apropriate counters and then start grabbing. */ cpu_start(stream_rr_request->measure_cpu); /* The loop will exit when the sender does a shutdown, which will */ /* return a length of zero */ if (stream_rr_request->test_length > 0) { times_up = 0; trans_remaining = 0; start_timer(stream_rr_request->test_length + PAD_TIME); } else { times_up = 1; trans_remaining = stream_rr_request->test_length * -1; } while ((!times_up) || (trans_remaining > 0)) { temp_message_ptr = recv_ring->buffer_ptr; request_bytes_remaining = stream_rr_request->request_size; /* receive the request from the other side */ if (debug) { fprintf(where,"about to receive for trans %d\n",trans_received); fprintf(where,"temp_message_ptr is %p\n",temp_message_ptr); fflush(where); } while(request_bytes_remaining > 0) { if((request_bytes_recvd=recv(s_data, temp_message_ptr, request_bytes_remaining, 0)) == SOCKET_ERROR) { if (errno == EINTR) { /* the timer popped */ timed_out = 1; break; } netperf_response.content.serv_errno = errno; send_response(); exit(1); } else { request_bytes_remaining -= request_bytes_recvd; temp_message_ptr += request_bytes_recvd; } if (debug) { fprintf(where,"just received for trans %d\n",trans_received); fflush(where); } } recv_ring = recv_ring->next; if (timed_out) { /* we hit the end of the test based on time - lets */ /* bail out of here now... */ fprintf(where,"yo5\n"); fflush(where); break; } /* Now, send the response to the remote */ if (debug) { fprintf(where,"about to send for trans %d\n",trans_received); fflush(where); } if((bytes_sent=send(s_data, send_ring->buffer_ptr, stream_rr_request->response_size, 0)) == SOCKET_ERROR) { if (errno == EINTR) { /* the test timer has popped */ timed_out = 1; fprintf(where,"yo6\n"); fflush(where); break; } netperf_response.content.serv_errno = 997; send_response(); exit(1); } send_ring = send_ring->next; trans_received++; if (trans_remaining) { trans_remaining--; } if (debug) { fprintf(where, "recv_stream_rr: Transaction %d complete\n", trans_received); fflush(where); } } /* The loop now exits due to timeout or transaction count being */ /* reached */ cpu_stop(stream_rr_request->measure_cpu,&elapsed_time); if (timed_out) { /* we ended the test by time, which was at least 2 seconds */ /* longer than we wanted to run. so, we want to subtract */ /* PAD_TIME from the elapsed_time. */ elapsed_time -= PAD_TIME; } /* send the results to the sender */ if (debug) { fprintf(where, "recv_stream_rr: got %d transactions\n", trans_received); fflush(where); } stream_rr_results->bytes_received = (trans_received * (stream_rr_request->request_size + stream_rr_request->response_size)); stream_rr_results->trans_received = trans_received; stream_rr_results->elapsed_time = elapsed_time; if (stream_rr_request->measure_cpu) { stream_rr_results->cpu_util = calc_cpu_util(elapsed_time); } if (debug) { fprintf(where, "recv_stream_rr: test complete, sending results.\n"); fflush(where); } send_response(); unlink(myaddr_un.sun_path); } void print_unix_usage() { fwrite(unix_usage, sizeof(char), strlen(unix_usage), stdout); exit(1); } void scan_unix_args(int argc, char *argv[]) { #define UNIX_ARGS "hm:M:p:r:s:S:" extern char *optarg; /* pointer to option string */ int c; char arg1[BUFSIZ], /* argument holders */ arg2[BUFSIZ]; init_test_vars(); if (no_control) { fprintf(where, "The UNIX tests do not know how to run with no control connection\n"); exit(-1); } /* Go through all the command line arguments and break them */ /* out. For those options that take two parms, specifying only */ /* the first will set both to that value. Specifying only the */ /* second will leave the first untouched. To change only the */ /* first, use the form "first," (see the routine break_args.. */ while ((c= getopt(argc, argv, UNIX_ARGS)) != EOF) { switch (c) { case '?': case 'h': print_unix_usage(); exit(1); case 'p': /* set the path prefix (directory) that should be used for the */ /* pipes. at some point, there should be some error checking. */ strcpy(path_prefix,optarg); break; case 's': /* set local socket sizes */ break_args(optarg,arg1,arg2); if (arg1[0]) lss_size_req = atoi(arg1); if (arg2[0]) lsr_size_req = atoi(arg2); break; case 'S': /* set remote socket sizes */ break_args(optarg,arg1,arg2); if (arg1[0]) rss_size = atoi(arg1); if (arg2[0]) rsr_size = atoi(arg2); break; case 'r': /* set the request/response sizes */ break_args(optarg,arg1,arg2); if (arg1[0]) req_size = atoi(arg1); if (arg2[0]) rsp_size = atoi(arg2); break; case 'm': /* set the send size */ send_size = atoi(optarg); break; case 'M': /* set the recv size */ recv_size = atoi(optarg); break; }; } } #endif /* WANT_UNIX */