/*
* 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);
}