Add a rudimentary gstat(8) to the system.
This is a small curses based program which shows the diskactivity inside GEOM.
This commit is contained in:
Poul-Henning Kamp
parent
35f304853f
commit
54a8adabd3
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=112444
@ -40,6 +40,7 @@ SUBDIR= IPXrouted \
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fwcontrol \
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getfmac \
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getpmac \
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gstat \
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ifmcstat \
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inetd \
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iostat \
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19
usr.sbin/gstat/Makefile
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19
usr.sbin/gstat/Makefile
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# $FreeBSD$
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PROG= gstat
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SRCS= gstat.c subr_sbuf.c
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.PATH: ${CURDIR}/../../../../sys/kern
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WARNS?= 5
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LDADD += -lgeom
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LDADD += -ldevstat
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LDADD += -lkvm
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LDADD += -lbsdxml
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LDADD += -lcurses
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NOMAN= sorry
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.include <bsd.prog.mk>
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232
usr.sbin/gstat/gstat.c
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232
usr.sbin/gstat/gstat.c
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/*-
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* Copyright (c) 2003 Poul-Henning Kamp
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <paths.h>
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#include <curses.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <err.h>
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#include <sys/mman.h>
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#include <sys/time.h>
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#include <libgeom.h>
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#include <sys/resource.h>
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#include <devstat.h>
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#include <sys/devicestat.h>
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static int flag_c;
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static int flag_I = 500000;
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int
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main(int argc, char **argv)
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{
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int error, i, quit;
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struct devstat *gsp, *gsq;
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void *sp, *sq;
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double dt;
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struct timespec tp, tq;
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struct gmesh gmp;
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struct gprovider *pp;
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struct gconsumer *cp;;
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struct gident *gid;
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short cf, cb;
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char *p;
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long double ld[8];
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uint64_t u64;
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while ((i = getopt(argc, argv, "cI:")) != -1) {
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switch (i) {
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case 'c':
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flag_c = !flag_c;
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break;
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case 'I':
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p = NULL;
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i = strtoul(optarg, &p, 0);
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if (p == optarg) {
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errx(1, "Invalid argument to -I");
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} else if (!strcmp(p, "s"))
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i *= 1000000;
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else if (!strcmp(p, "ms"))
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i *= 1000;
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else if (!strcmp(p, "us"))
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i *= 1;
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flag_I = i;
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break;
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case '?':
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default:
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errx(1, "Usage!");
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 0)
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errx(1, "Usage!");
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i = geom_gettree(&gmp);
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if (i != 0)
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err(1, "geom_gettree = %d", i);
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error = geom_stats_open();
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if (error)
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err(1, "geom_stats_open()");
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sq = NULL;
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sq = geom_stats_snapshot_get();
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if (sq == NULL)
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err(1, "geom_stats_snapshot()");
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initscr();
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start_color();
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use_default_colors();
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pair_content(0, &cf, &cb);
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init_pair(1, COLOR_GREEN, cb);
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init_pair(2, COLOR_MAGENTA, cb);
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init_pair(3, COLOR_RED, cb);
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cbreak();
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noecho();
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nonl();
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nodelay(stdscr, 1);
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intrflush(stdscr, FALSE);
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keypad(stdscr, TRUE);
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geom_stats_snapshot_timestamp(sq, &tq);
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for (quit = 0; !quit;) {
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sp = geom_stats_snapshot_get();
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if (sp == NULL)
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err(1, "geom_stats_snapshot()");
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geom_stats_snapshot_timestamp(sp, &tp);
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dt = tp.tv_sec - tq.tv_sec;
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dt += (tp.tv_nsec - tq.tv_nsec) * 1e-9;
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tq = tp;
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geom_stats_snapshot_reset(sp);
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geom_stats_snapshot_reset(sq);
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move(0,0);
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printw("dT: %5.3f flag_I %dus sizeof %d i %d\n",
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dt, flag_I, sizeof(*gsp), i);
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printw(" L(q) ops/s r/s kBps ms/r w/s kBps ms/w %%busy Name\n");
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for (;;) {
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gsp = geom_stats_snapshot_next(sp);
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gsq = geom_stats_snapshot_next(sq);
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if (gsp == NULL || gsq == NULL)
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break;
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if (gsp->id == NULL)
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continue;
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gid = geom_lookupid(&gmp, gsp->id);
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if (gid == NULL) {
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geom_deletetree(&gmp);
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i = geom_gettree(&gmp);
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if (i != 0)
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err(1, "geom_gettree = %d", i);
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gid = geom_lookupid(&gmp, gsp->id);
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}
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if (gid == NULL)
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continue;
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if (gid != NULL && gid->what == ISCONSUMER && !flag_c)
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continue;
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if (gsp->sequence0 != gsp->sequence1) {
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printw("*\n");
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continue;
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}
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devstat_compute_statistics(gsp, gsq, dt,
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DSM_QUEUE_LENGTH, &u64,
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DSM_TRANSFERS_PER_SECOND, &ld[0],
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DSM_TRANSFERS_PER_SECOND_READ, &ld[1],
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DSM_MB_PER_SECOND_READ, &ld[2],
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DSM_MS_PER_TRANSACTION_READ, &ld[3],
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DSM_TRANSFERS_PER_SECOND_WRITE, &ld[4],
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DSM_MB_PER_SECOND_WRITE, &ld[5],
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DSM_MS_PER_TRANSACTION_WRITE, &ld[6],
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DSM_BUSY_PCT, &ld[7],
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DSM_NONE);
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printw(" %4ju", (uintmax_t)u64);
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printw(" %6.0f", (double)ld[0]);
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printw(" %6.0f", (double)ld[1]);
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printw(" %6.0f", (double)ld[2] * 1024);
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printw(" %6.1f", (double)ld[3]);
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printw(" %6.0f", (double)ld[4]);
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printw(" %6.0f", (double)ld[5] * 1024);
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printw(" %6.1f", (double)ld[6]);
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if (ld[7] > 80)
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i = 3;
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else if (ld[7] > 50)
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i = 2;
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else
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i = 1;
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attron(COLOR_PAIR(i));
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printw(" %6.1lf", (double)ld[7]);
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attroff(COLOR_PAIR(i));
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printw("|");
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if (gid == NULL) {
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printw(" ??");
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} else if (gid->what == ISPROVIDER) {
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pp = gid->ptr;
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printw(" %s", pp->name);
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} else if (gid->what == ISCONSUMER) {
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cp = gid->ptr;
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printw(" %s/%s/%s",
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cp->geom->class->name,
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cp->geom->name,
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cp->provider->name);
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}
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clrtoeol();
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printw("\n");
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*gsq = *gsp;
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}
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geom_stats_snapshot_free(sp);
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clrtobot();
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refresh();
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usleep(flag_I);
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i = getch();
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switch (i) {
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case '>':
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flag_I *= 2;
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break;
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case '<':
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flag_I /= 2;
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if (flag_I < 1000)
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flag_I = 1000;
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break;
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case 'c':
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flag_c = !flag_c;
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break;
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case 'q':
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quit = 1;
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break;
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default:
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break;
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}
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}
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exit (0);
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}
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