FreeBSD-5.3/usr.sbin/gstat/gstat.c
/*-
* Copyright (c) 2003 Poul-Henning Kamp
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the authors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: src/usr.sbin/gstat/gstat.c,v 1.10 2004/06/04 19:29:09 ru Exp $
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include <curses.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <err.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <libgeom.h>
#include <sys/resource.h>
#include <devstat.h>
#include <sys/devicestat.h>
static int flag_c, flag_d;
static int flag_I = 500000;
static void usage(void);
int
main(int argc, char **argv)
{
int error, i, quit;
struct devstat *gsp, *gsq;
void *sp, *sq;
double dt;
struct timespec tp, tq;
struct gmesh gmp;
struct gprovider *pp;
struct gconsumer *cp;
struct gident *gid;
short cf, cb;
char *p;
long double ld[11];
uint64_t u64;
while ((i = getopt(argc, argv, "dcI:")) != -1) {
switch (i) {
case 'c':
flag_c = 1;
break;
case 'd':
flag_d = 1;
break;
case 'I':
p = NULL;
i = strtoul(optarg, &p, 0);
if (p == optarg || errno == EINVAL ||
errno == ERANGE) {
errx(1, "Invalid argument to -I");
} else if (!strcmp(p, "s"))
i *= 1000000;
else if (!strcmp(p, "ms"))
i *= 1000;
else if (!strcmp(p, "us"))
i *= 1;
flag_I = i;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc != 0)
usage();
i = geom_gettree(&gmp);
if (i != 0)
err(1, "geom_gettree = %d", i);
error = geom_stats_open();
if (error)
err(1, "geom_stats_open()");
sq = NULL;
sq = geom_stats_snapshot_get();
if (sq == NULL)
err(1, "geom_stats_snapshot()");
initscr();
start_color();
use_default_colors();
pair_content(0, &cf, &cb);
init_pair(1, COLOR_GREEN, cb);
init_pair(2, COLOR_MAGENTA, cb);
init_pair(3, COLOR_RED, cb);
cbreak();
noecho();
nonl();
nodelay(stdscr, 1);
intrflush(stdscr, FALSE);
keypad(stdscr, TRUE);
geom_stats_snapshot_timestamp(sq, &tq);
for (quit = 0; !quit;) {
sp = geom_stats_snapshot_get();
if (sp == NULL)
err(1, "geom_stats_snapshot()");
geom_stats_snapshot_timestamp(sp, &tp);
dt = tp.tv_sec - tq.tv_sec;
dt += (tp.tv_nsec - tq.tv_nsec) * 1e-9;
tq = tp;
geom_stats_snapshot_reset(sp);
geom_stats_snapshot_reset(sq);
move(0,0);
printw("dT: %5.3f flag_I %dus sizeof %d i %d\n",
dt, flag_I, sizeof(*gsp), i);
printw(" L(q) ops/s ");
printw(" r/s kBps ms/r ");
printw(" w/s kBps ms/w ");
if (flag_d)
printw(" d/s kBps ms/d ");
printw("%%busy Name\n");
for (;;) {
gsp = geom_stats_snapshot_next(sp);
gsq = geom_stats_snapshot_next(sq);
if (gsp == NULL || gsq == NULL)
break;
if (gsp->id == NULL)
continue;
gid = geom_lookupid(&gmp, gsp->id);
if (gid == NULL) {
geom_deletetree(&gmp);
i = geom_gettree(&gmp);
if (i != 0)
err(1, "geom_gettree = %d", i);
gid = geom_lookupid(&gmp, gsp->id);
}
if (gid == NULL)
continue;
if (gid != NULL && gid->lg_what == ISCONSUMER &&
!flag_c)
continue;
if (gsp->sequence0 != gsp->sequence1) {
printw("*\n");
continue;
}
devstat_compute_statistics(gsp, gsq, dt,
DSM_QUEUE_LENGTH, &u64,
DSM_TRANSFERS_PER_SECOND, &ld[0],
DSM_TRANSFERS_PER_SECOND_READ, &ld[1],
DSM_MB_PER_SECOND_READ, &ld[2],
DSM_MS_PER_TRANSACTION_READ, &ld[3],
DSM_TRANSFERS_PER_SECOND_WRITE, &ld[4],
DSM_MB_PER_SECOND_WRITE, &ld[5],
DSM_MS_PER_TRANSACTION_WRITE, &ld[6],
DSM_BUSY_PCT, &ld[7],
DSM_TRANSFERS_PER_SECOND_FREE, &ld[8],
DSM_MB_PER_SECOND_FREE, &ld[9],
DSM_MS_PER_TRANSACTION_FREE, &ld[10],
DSM_NONE);
printw(" %4ju", (uintmax_t)u64);
printw(" %6.0f", (double)ld[0]);
printw(" %6.0f", (double)ld[1]);
printw(" %6.0f", (double)ld[2] * 1024);
printw(" %6.1f", (double)ld[3]);
printw(" %6.0f", (double)ld[4]);
printw(" %6.0f", (double)ld[5] * 1024);
printw(" %6.1f", (double)ld[6]);
if (flag_d) {
printw(" %6.0f", (double)ld[8]);
printw(" %6.0f", (double)ld[9] * 1024);
printw(" %6.1f", (double)ld[10]);
}
if (ld[7] > 80)
i = 3;
else if (ld[7] > 50)
i = 2;
else
i = 1;
attron(COLOR_PAIR(i));
printw(" %6.1lf", (double)ld[7]);
attroff(COLOR_PAIR(i));
printw("|");
if (gid == NULL) {
printw(" ??");
} else if (gid->lg_what == ISPROVIDER) {
pp = gid->lg_ptr;
printw(" %s", pp->lg_name);
} else if (gid->lg_what == ISCONSUMER) {
cp = gid->lg_ptr;
printw(" %s/%s/%s",
cp->lg_geom->lg_class->lg_name,
cp->lg_geom->lg_name,
cp->lg_provider->lg_name);
}
clrtoeol();
printw("\n");
*gsq = *gsp;
}
geom_stats_snapshot_free(sp);
clrtobot();
refresh();
usleep(flag_I);
i = getch();
switch (i) {
case '>':
flag_I *= 2;
break;
case '<':
flag_I /= 2;
if (flag_I < 1000)
flag_I = 1000;
break;
case 'c':
flag_c = !flag_c;
break;
case 'q':
quit = 1;
break;
default:
break;
}
}
endwin();
exit (0);
}
static void
usage(void)
{
fprintf(stderr, "usage: gstat [-cd] [-I interval]\n");
exit(1);
/* NOTREACHED */
}