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Diffstat (limited to 'btt/args.c')
| -rw-r--r-- | btt/args.c | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/btt/args.c b/btt/args.c new file mode 100644 index 0000000..ed53b8b --- /dev/null +++ b/btt/args.c @@ -0,0 +1,414 @@ +/* + * blktrace output analysis: generate a timeline & gather statistics + * + * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <getopt.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include "globals.h" + +#define SETBUFFER_SIZE (64 * 1024) + +#define S_OPTS "aAB:d:D:e:hi:I:l:L:m:M:o:p:P:q:Q:rs:S:t:T:u:VvXz:" +static struct option l_opts[] = { + { + .name = "seek-absolute", + .has_arg = no_argument, + .flag = NULL, + .val = 'a' + }, + { + .name = "all-data", + .has_arg = no_argument, + .flag = NULL, + .val = 'A' + }, + { + .name = "dump-blocknos", + .has_arg = required_argument, + .flag = NULL, + .val = 'B' + }, + { + .name = "range-delta", + .has_arg = required_argument, + .flag = NULL, + .val = 'd' + }, + { + .name = "devices", + .has_arg = required_argument, + .flag = NULL, + .val = 'D' + }, + { + .name = "exes", + .has_arg = required_argument, + .flag = NULL, + .val = 'e' + }, + { + .name = "help", + .has_arg = no_argument, + .flag = NULL, + .val = 'h' + }, + { + .name = "input-file", + .has_arg = required_argument, + .flag = NULL, + .val = 'i' + }, + { + .name = "iostat", + .has_arg = required_argument, + .flag = NULL, + .val = 'I' + }, + { + .name = "d2c-latencies", + .has_arg = required_argument, + .flag = NULL, + .val = 'l' + }, + { + .name = "periodic-latencies", + .has_arg = required_argument, + .flag = NULL, + .val = 'L' + }, + { + .name = "seeks-per-second", + .has_arg = required_argument, + .flag = NULL, + .val = 'm' + }, + { + .name = "dev-maps", + .has_arg = required_argument, + .flag = NULL, + .val = 'M' + }, + { + .name = "output-file", + .has_arg = required_argument, + .flag = NULL, + .val = 'o' + }, + { + .name = "per-io-dump", + .has_arg = required_argument, + .flag = NULL, + .val = 'p' + }, + { + .name = "per-io-trees", + .has_arg = required_argument, + .flag = NULL, + .val = 'P' + }, + { + .name = "q2c-latencies", + .has_arg = required_argument, + .flag = NULL, + .val = 'q' + }, + { + .name = "active-queue-depth", + .has_arg = required_argument, + .flag = NULL, + .val = 'Q' + }, + { + .name = "no-remaps", + .has_arg = no_argument, + .flag = NULL, + .val = 'r' + }, + { + .name = "seeks", + .has_arg = required_argument, + .flag = NULL, + .val = 's' + }, + { + .name = "iostat-interval", + .has_arg = required_argument, + .flag = NULL, + .val = 'S' + }, + { + .name = "time-start", + .has_arg = required_argument, + .flag = NULL, + .val = 't' + }, + { + .name = "time-end", + .has_arg = required_argument, + .flag = NULL, + .val = 'T' + }, + { + .name = "unplug-hist", + .has_arg = required_argument, + .flag = NULL, + .val = 'u' + }, + { + .name = "version", + .has_arg = no_argument, + .flag = NULL, + .val = 'V' + }, + { + .name = "verbose", + .has_arg = no_argument, + .flag = NULL, + .val = 'v' + }, + { + .name = "easy-parse-avgs", + .has_arg = no_argument, + .flag = NULL, + .val = 'X' + }, + { + .name = "q2d-latencies", + .has_arg = required_argument, + .flag = NULL, + .val = 'z' + }, + { + .name = NULL, + } +}; + +static char usage_str[] = \ + "\n[ -a | --seek-absolute ]\n" \ + "[ -A | --all-data ]\n" \ + "[ -B <output name> | --dump-blocknos=<output name> ]\n" \ + "[ -d <seconds> | --range-delta=<seconds> ]\n" \ + "[ -D <dev;...> | --devices=<dev;...> ]\n" \ + "[ -e <exe,...> | --exes=<exe,...> ]\n" \ + "[ -h | --help ]\n" \ + "[ -i <input name> | --input-file=<input name> ]\n" \ + "[ -I <output name> | --iostat=<output name> ]\n" \ + "[ -l <output name> | --d2c-latencies=<output name> ]\n" \ + "[ -L <freq> | --periodic-latencies=<freq> ]\n" \ + "[ -m <output name> | --seeks-per-second=<output name> ]\n" \ + "[ -M <dev map> | --dev-maps=<dev map>\n" \ + "[ -o <output name> | --output-file=<output name> ]\n" \ + "[ -p <output name> | --per-io-dump=<output name> ]\n" \ + "[ -P <output name> | --per-io-trees=<output name> ]\n" \ + "[ -q <output name> | --q2c-latencies=<output name> ]\n" \ + "[ -Q <output name> | --active-queue-depth=<output name> ]\n" \ + "[ -r | --no-remaps ]\n" \ + "[ -s <output name> | --seeks=<output name> ]\n" \ + "[ -S <interval> | --iostat-interval=<interval> ]\n" \ + "[ -t <sec> | --time-start=<sec> ]\n" \ + "[ -T <sec> | --time-end=<sec> ]\n" \ + "[ -u <output name> | --unplug-hist=<output name> ]\n" \ + "[ -V | --version ]\n" \ + "[ -v | --verbose ]\n" \ + "[ -X | --easy-parse-avgs ]\n" \ + "[ -z <output name> | --q2d-latencies=<output name> ]\n" \ + "\n"; + +static void usage(char *prog) +{ + fprintf(stderr, "Usage: %s %s %s", prog, bt_timeline_version, + usage_str); +} + +static FILE *setup_ofile(char *fname) +{ + if (fname) { + char *buf; + FILE *ofp = my_fopen(fname, "w"); + + if (!ofp) { + perror(fname); + exit(1); + } + + buf = malloc(SETBUFFER_SIZE); + setbuffer(ofp, buf, SETBUFFER_SIZE); + + add_file(ofp, fname); + add_buf(buf); + + return ofp; + } + + return NULL; +} + +static FILE *std_open(char *output_name, char *sfx, char *msg) +{ + FILE *fp; + char fname[strlen(output_name) + 32]; + + sprintf(fname, "%s.%s", output_name, sfx); + fp = my_fopen(fname, "w"); + if (fp == NULL) { + perror(fname); + exit(1); + } + if (verbose) + printf("Sending %s to %s\n", msg, fname); + + return fp; +} + +void handle_args(int argc, char *argv[]) +{ + int c; + + while ((c = getopt_long(argc, argv, S_OPTS, l_opts, NULL)) != -1) { + switch (c) { + case 'a': + seek_absolute = 1; + break; + case 'A': + output_all_data = 1; + break; + case 'B': + bno_dump_name = optarg; + break; + case 'd': + sscanf(optarg, "%lf", &range_delta); + break; + case 'D': + devices = optarg; + break; + case 'e': + exes = optarg; + break; + case 'h': + usage(argv[0]); + exit(0); + case 'i': + input_name = optarg; + break; + case 'l': + d2c_name = optarg; + break; + case 'L': + plat_freq = atof(optarg); + break; + case 'I': + iostat_name = strdup(optarg); + break; + case 'm': + sps_name = optarg; + break; + case 'M': + if (dev_map_read(optarg)) + exit(1); + break; + case 'o': + output_name = optarg; + break; + case 'p': + per_io_name = strdup(optarg); + break; + case 'P': + per_io_trees = optarg; + break; + case 'q': + q2c_name = optarg; + break; + case 'Q': + aqd_name = optarg; + break; + case 'r': + ignore_remaps = 1; + break; + case 's': + seek_name = optarg; + break; + case 'S': { + unsigned int interval; + + sscanf(optarg, "%u", &interval); + iostat_interval = (__u64)interval * 1000000000LL; + break; + } + case 't': + sscanf(optarg, "%lf", &t_astart); + time_bounded = 1; + break; + case 'T': + sscanf(optarg, "%lf", &t_aend); + time_bounded = 1; + break; + case 'u': + unplug_hist_name = optarg; + break; + case 'v': + verbose = 1; + break; + case 'V': + printf("%s version %s\n", argv[0], bt_timeline_version); + exit(0); + case 'X': + easy_parse_avgs++; + break; + case 'z': + q2d_name = optarg; + break; + default: + usage(argv[0]); + exit(1); + } + } + + if (input_name == NULL) { + usage(argv[0]); + exit(1); + } + + if (sps_name && !seek_name) { + fprintf(stderr, "FATAL: -m option requires -s options\n"); + exit(1); + } + + setup_ifile(input_name); + + if (output_name == NULL) { + rngs_ofp = avgs_ofp = msgs_ofp = stdout; + easy_parse_avgs = 0; + } else { + rngs_ofp = std_open(output_name, "dat", "range data"); + avgs_ofp = std_open(output_name, "avg", "stats data"); + msgs_ofp = std_open(output_name, "msg", "K messages"); + if (easy_parse_avgs) { + xavgs_ofp = std_open(output_name, "xvg", + "EZ stats data"); + } + } + + iostat_ofp = setup_ofile(iostat_name); + per_io_ofp = setup_ofile(per_io_name); +} |