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132 lines
3.2 KiB
132 lines
3.2 KiB
/*
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* blktrace output analysis: generate a timeline & gather statistics
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*
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* Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include <time.h>
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#include "globals.h"
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char bt_timeline_version[] = "2.09";
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char *devices, *exes, *input_name, *output_name, *seek_name, *bno_dump_name;
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char *d2c_name, *q2c_name, *per_io_name, *unplug_hist_name;
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char *sps_name, *aqd_name, *q2d_name, *per_io_trees;
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FILE *rngs_ofp, *avgs_ofp, *xavgs_ofp, *per_io_ofp, *msgs_ofp;
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int verbose, done, time_bounded, output_all_data, seek_absolute;
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int easy_parse_avgs, ignore_remaps, do_p_live;
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double t_astart, t_aend, last_t_seen;
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unsigned long n_traces;
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struct avgs_info all_avgs;
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unsigned int n_devs;
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time_t genesis, last_vtrace;
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LIST_HEAD(all_devs);
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LIST_HEAD(all_procs);
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LIST_HEAD(all_ios);
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LIST_HEAD(free_ios);
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LIST_HEAD(free_bilinks);
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__u64 q_histo[N_HIST_BKTS], d_histo[N_HIST_BKTS];
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double plat_freq = 0.0;
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double range_delta = 0.1;
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__u64 last_q = (__u64)-1;
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struct region_info all_regions = {
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.qranges = LIST_HEAD_INIT(all_regions.qranges),
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.cranges = LIST_HEAD_INIT(all_regions.cranges),
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};
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int process(void);
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int main(int argc, char *argv[])
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{
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handle_args(argc, argv);
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init_dev_heads();
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iostat_init();
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if (!rstat_init())
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return 1;
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if (process() || output_avgs(avgs_ofp) || output_ranges(rngs_ofp))
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return 1;
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if (iostat_ofp) {
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fprintf(iostat_ofp, "\n");
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iostat_dump_stats(iostat_last_stamp, 1);
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}
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if (msgs_ofp != stdout)
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fclose(msgs_ofp);
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if (rngs_ofp != stdout)
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fclose(rngs_ofp);
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if (avgs_ofp != stdout)
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fclose(avgs_ofp);
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if (xavgs_ofp)
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fclose(xavgs_ofp);
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dip_cleanup();
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dev_map_exit();
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dip_exit();
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rstat_exit();
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pip_exit();
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io_free_all();
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region_exit(&all_regions);
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p_live_exit();
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clean_allocs();
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return 0;
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}
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static inline double tv2dbl(struct timeval *tv)
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{
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return (double)tv->tv_sec + (((double)tv->tv_usec) / (1000.0 * 1000.0));
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}
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int process(void)
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{
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int ret = 0;
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struct io *iop = io_alloc();
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struct timeval tvs, tve;
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genesis = last_vtrace = time(NULL);
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gettimeofday(&tvs, NULL);
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while (!done && next_trace(&iop->t, &iop->pdu)) {
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add_trace(iop);
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iop = io_alloc();
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}
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io_release(iop);
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gettimeofday(&tve, NULL);
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if (verbose) {
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double tps, dt_input = tv2dbl(&tve) - tv2dbl(&tvs);
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tps = (double)n_traces / dt_input;
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printf("\r "
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" \r");
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printf("%10lu traces @ %.1lf Ktps in %.6lf seconds\n",
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n_traces, tps/1000.0,
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dt_input);
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}
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return ret;
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}
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