diff options
Diffstat (limited to 'btt/bt_timeline.c')
-rw-r--r-- | btt/bt_timeline.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/btt/bt_timeline.c b/btt/bt_timeline.c new file mode 100644 index 0000000..24dafc8 --- /dev/null +++ b/btt/bt_timeline.c @@ -0,0 +1,126 @@ +/* + * 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 <string.h> +#include <unistd.h> +#include <sys/time.h> +#include <time.h> +#include "globals.h" + +char bt_timeline_version[] = "2.08"; + +char *devices, *exes, *input_name, *output_name, *seek_name, *bno_dump_name; +char *d2c_name, *q2c_name, *per_io_name, *unplug_hist_name; +char *sps_name, *aqd_name, *q2d_name, *per_io_trees; +FILE *rngs_ofp, *avgs_ofp, *xavgs_ofp, *per_io_ofp, *msgs_ofp; +int verbose, done, time_bounded, output_all_data, seek_absolute; +int easy_parse_avgs, ignore_remaps; +double t_astart, t_aend; +unsigned long n_traces; +struct avgs_info all_avgs; +unsigned int n_devs; +time_t genesis, last_vtrace; +LIST_HEAD(all_devs); +LIST_HEAD(all_procs); +LIST_HEAD(all_ios); +LIST_HEAD(free_ios); +LIST_HEAD(free_bilinks); +__u64 q_histo[N_HIST_BKTS], d_histo[N_HIST_BKTS]; + +double plat_freq = 0.0; +double range_delta = 0.1; +__u64 last_q = (__u64)-1; + +struct region_info all_regions = { + .qranges = LIST_HEAD_INIT(all_regions.qranges), + .cranges = LIST_HEAD_INIT(all_regions.cranges), +}; + +int process(void); + +int main(int argc, char *argv[]) +{ + handle_args(argc, argv); + + init_dev_heads(); + iostat_init(); + if (process() || output_avgs(avgs_ofp) || output_ranges(rngs_ofp)) + return 1; + + if (iostat_ofp) { + fprintf(iostat_ofp, "\n"); + iostat_dump_stats(iostat_last_stamp, 1); + } + + if (msgs_ofp != stdout) + fclose(msgs_ofp); + if (rngs_ofp != stdout) + fclose(rngs_ofp); + if (avgs_ofp != stdout) + fclose(avgs_ofp); + if (xavgs_ofp) + fclose(xavgs_ofp); + + dip_cleanup(); + dev_map_exit(); + dip_exit(); + pip_exit(); + io_free_all(); + region_exit(&all_regions); + clean_allocs(); + + return 0; +} + +static inline double tv2dbl(struct timeval *tv) +{ + return (double)tv->tv_sec + (((double)tv->tv_usec) / (1000.0 * 1000.0)); +} + +int process(void) +{ + int ret = 0; + struct io *iop = io_alloc(); + struct timeval tvs, tve; + + genesis = last_vtrace = time(NULL); + gettimeofday(&tvs, NULL); + while (!done && next_trace(&iop->t, &iop->pdu)) { + add_trace(iop); + iop = io_alloc(); + } + + io_release(iop); + gettimeofday(&tve, NULL); + + if (verbose) { + double tps, dt_input = tv2dbl(&tve) - tv2dbl(&tvs); + + tps = (double)n_traces / dt_input; + printf("\r " + " \r"); + printf("%10lu traces @ %.1lf Ktps in %.6lf seconds\n", + n_traces, tps/1000.0, + dt_input); + } + + return ret; +} |