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NetBSD/usr.bin/vmstat/vmstat.c

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/* $NetBSD: vmstat.c,v 1.60 1999/12/05 19:02:29 fredb Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Copyright (c) 1980, 1986, 1991, 1993
* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
The Regents of the University of California. All rights reserved.\n");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 3/1/95";
#else
__RCSID("$NetBSD: vmstat.c,v 1.60 1999/12/05 19:02:29 fredb Exp $");
#endif
#endif /* not lint */
#define __POOL_EXPOSE
#include <sys/param.h>
#include <sys/time.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/dkstat.h>
#include <sys/buf.h>
#include <sys/namei.h>
#include <sys/malloc.h>
#include <sys/ioctl.h>
#include <sys/sysctl.h>
#include <sys/device.h>
#include <sys/pool.h>
#include <vm/vm.h>
#include <err.h>
#include <fcntl.h>
#include <time.h>
#include <nlist.h>
#include <kvm.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include <limits.h>
#include "dkstats.h"
#include <uvm/uvm_stat.h>
struct nlist namelist[] = {
#define X_CPTIME 0
{ "_cp_time" },
#define X_BOOTTIME 1
{ "_boottime" },
#define X_HZ 2
{ "_hz" },
#define X_STATHZ 3
{ "_stathz" },
#define X_NCHSTATS 4
{ "_nchstats" },
#define X_INTRNAMES 5
{ "_intrnames" },
#define X_EINTRNAMES 6
{ "_eintrnames" },
#define X_INTRCNT 7
{ "_intrcnt" },
#define X_EINTRCNT 8
{ "_eintrcnt" },
#define X_KMEMSTAT 9
{ "_kmemstats" },
#define X_KMEMBUCKETS 10
{ "_bucket" },
#define X_ALLEVENTS 11
{ "_allevents" },
#define X_POOLHEAD 12
{ "_pool_head" },
#define X_UVMEXP 13
{ "_uvmexp" },
#define X_END 14
#if defined(pc532)
#define X_IVT (X_END)
{ "_ivt" },
#endif
{ "" },
};
/* Objects defined in dkstats.c */
extern struct _disk cur;
extern char **dr_name;
extern int *dk_select, dk_ndrive;
struct uvmexp uvmexp, ouvmexp;
int ndrives;
int winlines = 20;
kvm_t *kd;
#define FORKSTAT 0x01
#define INTRSTAT 0x02
#define MEMSTAT 0x04
#define SUMSTAT 0x08
#define VMSTAT 0x20
#define HISTLIST 0x40
#define HISTDUMP 0x80
void cpustats __P((void));
void dkstats __P((void));
void dointr __P((void));
void domem __P((void));
void dopool __P((void));
void dosum __P((void));
void dovmstat __P((u_int, int));
void kread __P((int, void *, size_t));
void needhdr __P((int));
long getuptime __P((void));
void printhdr __P((void));
long pct __P((long, long));
void usage __P((void));
void doforkst __P((void));
void hist_traverse __P((int, const char *));
void hist_dodump __P((struct uvm_history *));
int main __P((int, char **));
char **choosedrives __P((char **));
extern int dkinit __P((int, gid_t));
extern void dkreadstats __P((void));
extern void dkswap __P((void));
/* Namelist and memory file names. */
char *nlistf, *memf;
/* allow old usage [vmstat 1] */
#define BACKWARD_COMPATIBILITY
int
main(argc, argv)
int argc;
char **argv;
{
extern int optind;
extern char *optarg;
int c, todo;
u_int interval;
int reps;
char errbuf[_POSIX2_LINE_MAX];
gid_t egid = getegid();
const char *histname = NULL;
(void)setegid(getgid());
memf = nlistf = NULL;
interval = reps = todo = 0;
while ((c = getopt(argc, argv, "c:fh:HilM:mN:sw:")) != -1) {
switch (c) {
case 'c':
reps = atoi(optarg);
break;
case 'f':
todo |= FORKSTAT;
break;
case 'h':
histname = optarg;
/* FALLTHROUGH */
case 'H':
todo |= HISTDUMP;
break;
case 'i':
todo |= INTRSTAT;
break;
case 'l':
todo |= HISTLIST;
break;
case 'M':
memf = optarg;
break;
case 'm':
todo |= MEMSTAT;
break;
case 'N':
nlistf = optarg;
break;
case 's':
todo |= SUMSTAT;
break;
case 'w':
interval = atoi(optarg);
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if (todo == 0)
todo = VMSTAT;
/*
* Discard setgid privileges. If not the running kernel, we toss
* them away totally so that bad guys can't print interesting stuff
* from kernel memory, otherwise switch back to kmem for the
* duration of the kvm_openfiles() call.
*/
if (nlistf != NULL || memf != NULL)
(void)setgid(getgid());
else
(void)setegid(egid);
kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
if (kd == 0)
errx(1, "kvm_openfiles: %s\n", errbuf);
if (nlistf == NULL && memf == NULL) {
if (todo & VMSTAT)
(void)setegid(getgid()); /* XXX: dkinit */
else
(void)setgid(getgid());
}
if ((c = kvm_nlist(kd, namelist)) != 0) {
if (c > 0) {
(void)fprintf(stderr,
"vmstat: undefined symbols:");
for (c = 0;
c < sizeof(namelist)/sizeof(namelist[0]); c++)
if (namelist[c].n_type == 0)
fprintf(stderr, " %s",
namelist[c].n_name);
(void)fputc('\n', stderr);
} else
(void)fprintf(stderr, "vmstat: kvm_nlist: %s\n",
kvm_geterr(kd));
exit(1);
}
if (todo & VMSTAT) {
struct winsize winsize;
dkinit(0, egid); /* Initialize disk stats, no disks selected. */
(void)setgid(getgid()); /* don't need privs anymore */
argv = choosedrives(argv); /* Select disks. */
winsize.ws_row = 0;
(void)ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize);
if (winsize.ws_row > 0)
winlines = winsize.ws_row;
}
#ifdef BACKWARD_COMPATIBILITY
if (*argv) {
interval = atoi(*argv);
if (*++argv)
reps = atoi(*argv);
}
#endif
if (interval) {
if (!reps)
reps = -1;
} else if (reps)
interval = 1;
if (todo & (HISTLIST|HISTDUMP)) {
if ((todo & (HISTLIST|HISTDUMP)) == (HISTLIST|HISTDUMP))
errx(1, "you may list or dump, but not both!");
hist_traverse(todo, histname);
}
if (todo & FORKSTAT)
doforkst();
if (todo & MEMSTAT) {
domem();
dopool();
}
if (todo & SUMSTAT)
dosum();
if (todo & INTRSTAT)
dointr();
if (todo & VMSTAT)
dovmstat(interval, reps);
exit(0);
}
char **
choosedrives(argv)
char **argv;
{
int i;
/*
* Choose drives to be displayed. Priority goes to (in order) drives
* supplied as arguments, default drives. If everything isn't filled
* in and there are drives not taken care of, display the first few
* that fit.
*/
#define BACKWARD_COMPATIBILITY
for (ndrives = 0; *argv; ++argv) {
#ifdef BACKWARD_COMPATIBILITY
if (isdigit(**argv))
break;
#endif
for (i = 0; i < dk_ndrive; i++) {
if (strcmp(dr_name[i], *argv))
continue;
dk_select[i] = 1;
++ndrives;
break;
}
}
for (i = 0; i < dk_ndrive && ndrives < 4; i++) {
if (dk_select[i])
continue;
dk_select[i] = 1;
++ndrives;
}
return(argv);
}
long
getuptime()
{
static time_t now;
static struct timeval boottime;
time_t uptime;
if (boottime.tv_sec == 0)
kread(X_BOOTTIME, &boottime, sizeof(boottime));
(void)time(&now);
uptime = now - boottime.tv_sec;
if (uptime <= 0 || uptime > 60*60*24*365*10) {
(void)fprintf(stderr,
"vmstat: time makes no sense; namelist must be wrong.\n");
exit(1);
}
return(uptime);
}
int hz, hdrcnt;
void
dovmstat(interval, reps)
u_int interval;
int reps;
{
struct vmtotal total;
time_t uptime, halfuptime;
int mib[2];
size_t size;
int pagesize = getpagesize();
uptime = getuptime();
halfuptime = uptime / 2;
(void)signal(SIGCONT, needhdr);
if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0)
kread(X_STATHZ, &hz, sizeof(hz));
if (!hz)
kread(X_HZ, &hz, sizeof(hz));
for (hdrcnt = 1;;) {
if (!--hdrcnt)
printhdr();
/* Read new disk statistics */
dkreadstats();
kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
if (memf != NULL) {
/*
* XXX Can't do this if we're reading a crash
* XXX dump because they're lazily-calculated.
*/
printf("Unable to get vmtotals from crash dump.\n");
memset(&total, 0, sizeof(total));
} else {
size = sizeof(total);
mib[0] = CTL_VM;
mib[1] = VM_METER;
if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
printf("Can't get vmtotals: %s\n",
strerror(errno));
memset(&total, 0, sizeof(total));
}
}
(void)printf("%2d%2d%2d",
total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
#define pgtok(a) (long)((a) * (pagesize >> 10))
#define rate(x) (u_long)(((x) + halfuptime) / uptime) /* round */
(void)printf("%6ld%6ld ",
pgtok(total.t_avm), pgtok(total.t_free));
(void)printf("%4lu ", rate(uvmexp.faults - ouvmexp.faults));
(void)printf("%3lu ", rate(uvmexp.pdreact - ouvmexp.pdreact));
(void)printf("%3lu ", rate(uvmexp.pageins - ouvmexp.pageins));
(void)printf("%4lu ",
rate(uvmexp.pgswapout - ouvmexp.pgswapout));
(void)printf("%4lu ", rate(uvmexp.pdfreed - ouvmexp.pdfreed));
(void)printf("%4lu ", rate(uvmexp.pdscans - ouvmexp.pdscans));
dkstats();
(void)printf("%4lu %4lu %3lu ",
rate(uvmexp.intrs - ouvmexp.intrs),
rate(uvmexp.syscalls - ouvmexp.syscalls),
rate(uvmexp.swtch - ouvmexp.swtch));
cpustats();
(void)printf("\n");
(void)fflush(stdout);
if (reps >= 0 && --reps <= 0)
break;
ouvmexp = uvmexp;
uptime = interval;
/*
* We round upward to avoid losing low-frequency events
* (i.e., >= 1 per interval but < 1 per second).
*/
halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
(void)sleep(interval);
}
}
void
printhdr()
{
int i;
(void)printf(" procs memory page%*s", 23, "");
if (ndrives > 0)
(void)printf("%s %*sfaults cpu\n",
((ndrives > 1) ? "disks" : "disk"),
((ndrives > 1) ? ndrives * 3 - 4 : 0), "");
else
(void)printf("%*s faults cpu\n",
ndrives * 3, "");
(void)printf(" r b w avm fre flt re pi po fr sr ");
for (i = 0; i < dk_ndrive; i++)
if (dk_select[i])
(void)printf("%c%c ", dr_name[i][0],
dr_name[i][strlen(dr_name[i]) - 1]);
(void)printf(" in sy cs us sy id\n");
hdrcnt = winlines - 2;
}
/*
* Force a header to be prepended to the next output.
*/
void
needhdr(dummy)
int dummy;
{
hdrcnt = 1;
}
long
pct(top, bot)
long top, bot;
{
long ans;
if (bot == 0)
return(0);
ans = (quad_t)top * 100 / bot;
return (ans);
}
#define PCT(top, bot) (int)pct((long)(top), (long)(bot))
void
dosum()
{
struct nchstats nchstats;
long nchtotal;
kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
(void)printf("%9u bytes per page\n", uvmexp.pagesize);
(void)printf("%9u pages managed\n", uvmexp.npages);
(void)printf("%9u pages free\n", uvmexp.free);
(void)printf("%9u pages active\n", uvmexp.active);
(void)printf("%9u pages inactive\n", uvmexp.inactive);
(void)printf("%9u pages paging\n", uvmexp.paging);
(void)printf("%9u pages wired\n", uvmexp.wired);
(void)printf("%9u reserve pagedaemon pages\n",
uvmexp.reserve_pagedaemon);
(void)printf("%9u reserve kernel pages\n", uvmexp.reserve_kernel);
(void)printf("%9u minimum free pages\n", uvmexp.freemin);
(void)printf("%9u target free pages\n", uvmexp.freetarg);
(void)printf("%9u target inactive pages\n", uvmexp.inactarg);
(void)printf("%9u maximum wired pages\n", uvmexp.wiredmax);
(void)printf("%9u swap devices\n", uvmexp.nswapdev);
(void)printf("%9u swap pages\n", uvmexp.swpages);
(void)printf("%9u swap pages in use\n", uvmexp.swpginuse);
(void)printf("%9u swap allocations\n", uvmexp.nswget);
(void)printf("%9u anons\n", uvmexp.nanon);
(void)printf("%9u free anons\n", uvmexp.nfreeanon);
(void)printf("%9u total faults taken\n", uvmexp.faults);
(void)printf("%9u traps\n", uvmexp.traps);
(void)printf("%9u device interrupts\n", uvmexp.intrs);
(void)printf("%9u cpu context switches\n", uvmexp.swtch);
(void)printf("%9u software interrupts\n", uvmexp.softs);
(void)printf("%9u system calls\n", uvmexp.syscalls);
(void)printf("%9u pagein requests\n", uvmexp.pageins);
(void)printf("%9u pageout requests\n", uvmexp.pdpageouts);
(void)printf("%9u swap ins\n", uvmexp.swapins);
(void)printf("%9u swap outs\n", uvmexp.swapouts);
(void)printf("%9u pages swapped in\n", uvmexp.pgswapin);
(void)printf("%9u pages swapped out\n", uvmexp.pgswapout);
(void)printf("%9u forks total\n", uvmexp.forks);
(void)printf("%9u forks blocked parent\n", uvmexp.forks_ppwait);
(void)printf("%9u forks shared address space with parent\n",
uvmexp.forks_sharevm);
(void)printf("%9u faults with no memory\n", uvmexp.fltnoram);
(void)printf("%9u faults with no anons\n", uvmexp.fltnoanon);
(void)printf("%9u faults had to wait on pages\n", uvmexp.fltpgwait);
(void)printf("%9u faults found released page\n", uvmexp.fltpgrele);
(void)printf("%9u faults relock (%u ok)\n", uvmexp.fltrelck,
uvmexp.fltrelckok);
(void)printf("%9u anon page faults\n", uvmexp.fltanget);
(void)printf("%9u anon retry faults\n", uvmexp.fltanretry);
(void)printf("%9u amap copy faults\n", uvmexp.fltamcopy);
(void)printf("%9u neighbour anon page faults\n", uvmexp.fltnamap);
(void)printf("%9u neighbour object page faults\n", uvmexp.fltnomap);
(void)printf("%9u locked pager get faults\n", uvmexp.fltlget);
(void)printf("%9u unlocked pager get faults\n", uvmexp.fltget);
(void)printf("%9u anon faults\n", uvmexp.flt_anon);
(void)printf("%9u anon copy on write faults\n", uvmexp.flt_acow);
(void)printf("%9u object faults\n", uvmexp.flt_obj);
(void)printf("%9u promote copy faults\n", uvmexp.flt_prcopy);
(void)printf("%9u promote zero fill faults\n", uvmexp.flt_przero);
(void)printf("%9u times daemon wokeup\n",uvmexp.pdwoke);
(void)printf("%9u revolutions of the clock hand\n", uvmexp.pdrevs);
(void)printf("%9u times daemon attempted swapout\n", uvmexp.pdswout);
(void)printf("%9u pages freed by daemon\n", uvmexp.pdfreed);
(void)printf("%9u pages scanned by daemon\n", uvmexp.pdscans);
(void)printf("%9u anonymous pages scanned by daemon\n", uvmexp.pdanscan);
(void)printf("%9u object pages scanned by daemon\n", uvmexp.pdobscan);
(void)printf("%9u pages reactivated\n", uvmexp.pdreact);
(void)printf("%9u pages found busy by daemon\n", uvmexp.pdbusy);
(void)printf("%9u total pending pageouts\n", uvmexp.pdpending);
(void)printf("%9u pages deactivated\n", uvmexp.pddeact);
kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
nchstats.ncs_badhits + nchstats.ncs_falsehits +
nchstats.ncs_miss + nchstats.ncs_long;
(void)printf("%9ld total name lookups\n", nchtotal);
(void)printf(
"%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n",
"", PCT(nchstats.ncs_goodhits, nchtotal),
PCT(nchstats.ncs_neghits, nchtotal),
PCT(nchstats.ncs_pass2, nchtotal));
(void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
PCT(nchstats.ncs_badhits, nchtotal),
PCT(nchstats.ncs_falsehits, nchtotal),
PCT(nchstats.ncs_long, nchtotal));
}
void
doforkst()
{
kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
(void)printf("%u forks total\n", uvmexp.forks);
(void)printf("%u forks blocked parent\n", uvmexp.forks_ppwait);
(void)printf("%u forks shared address space with parent\n",
uvmexp.forks_sharevm);
}
void
dkstats()
{
int dn, state;
double etime;
/* Calculate disk stat deltas. */
dkswap();
etime = 0;
for (state = 0; state < CPUSTATES; ++state) {
etime += cur.cp_time[state];
}
if (etime == 0)
etime = 1;
etime /= hz;
for (dn = 0; dn < dk_ndrive; ++dn) {
if (!dk_select[dn])
continue;
(void)printf("%2.0f ", cur.dk_xfer[dn] / etime);
}
}
void
cpustats()
{
int state;
double pct, total;
total = 0;
for (state = 0; state < CPUSTATES; ++state)
total += cur.cp_time[state];
if (total)
pct = 100 / total;
else
pct = 0;
(void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pct);
(void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pct);
(void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct);
}
#if defined(pc532)
/* To get struct iv ...*/
#define _KERNEL
#include <machine/psl.h>
#undef _KERNEL
void
dointr()
{
long i, j, inttotal, uptime;
static char iname[64];
struct iv ivt[32], *ivp = ivt;
iname[63] = '\0';
uptime = getuptime();
kread(X_IVT, ivp, sizeof(ivt));
for (i = 0; i < 2; i++) {
(void)printf("%sware interrupts:\n", i ? "\nsoft" : "hard");
(void)printf("interrupt total rate\n");
inttotal = 0;
for (j = 0; j < 16; j++, ivp++) {
if (ivp->iv_vec && ivp->iv_use && ivp->iv_cnt) {
if (kvm_read(kd, (u_long)ivp->iv_use, iname, 63) != 63) {
(void)fprintf(stderr, "vmstat: iv_use: %s\n",
kvm_geterr(kd));
exit(1);
}
(void)printf("%-12s %8ld %8ld\n", iname,
ivp->iv_cnt, ivp->iv_cnt / uptime);
inttotal += ivp->iv_cnt;
}
}
(void)printf("Total %8ld %8ld\n",
inttotal, inttotal / uptime);
}
}
#else
void
dointr()
{
long *intrcnt, inttotal, uptime;
int nintr, inamlen;
char *intrname;
struct evcntlist allevents;
struct evcnt evcnt, *evptr;
struct device dev;
uptime = getuptime();
nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value;
inamlen =
namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value;
intrcnt = malloc((size_t)nintr);
intrname = malloc((size_t)inamlen);
if (intrcnt == NULL || intrname == NULL) {
(void)fprintf(stderr, "vmstat: %s.\n", strerror(errno));
exit(1);
}
kread(X_INTRCNT, intrcnt, (size_t)nintr);
kread(X_INTRNAMES, intrname, (size_t)inamlen);
(void)printf("interrupt total rate\n");
inttotal = 0;
nintr /= sizeof(long);
while (--nintr >= 0) {
if (*intrcnt)
(void)printf("%-14s %8ld %8ld\n", intrname,
*intrcnt, *intrcnt / uptime);
intrname += strlen(intrname) + 1;
inttotal += *intrcnt++;
}
kread(X_ALLEVENTS, &allevents, sizeof allevents);
evptr = allevents.tqh_first;
while (evptr) {
if (kvm_read(kd, (long)evptr, (void *)&evcnt,
sizeof evcnt) != sizeof evcnt) {
(void)fprintf(stderr, "vmstat: event chain trashed: %s\n",
kvm_geterr(kd));
exit(1);
}
if (kvm_read(kd, (long)evcnt.ev_dev, (void *)&dev,
sizeof dev) != sizeof dev) {
(void)fprintf(stderr, "vmstat: event chain trashed: %s\n",
kvm_geterr(kd));
exit(1);
}
if (evcnt.ev_count)
(void)printf("%-14s %8ld %8ld\n", dev.dv_xname,
(long)evcnt.ev_count, evcnt.ev_count / uptime);
inttotal += evcnt.ev_count++;
evptr = evcnt.ev_list.tqe_next;
}
(void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime);
}
#endif
/*
* These names are defined in <sys/malloc.h>.
*/
char *kmemnames[] = INITKMEMNAMES;
void
domem()
{
struct kmembuckets *kp;
struct kmemstats *ks;
int i, j;
int len, size, first;
long totuse = 0, totfree = 0, totreq = 0;
char *name;
struct kmemstats kmemstats[M_LAST];
struct kmembuckets buckets[MINBUCKET + 16];
kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
i++, kp++) {
if (kp->kb_calls == 0)
continue;
if (first) {
(void)printf("Memory statistics by bucket size\n");
(void)printf(
" Size In Use Free Requests HighWater Couldfree\n");
first = 0;
}
size = 1 << i;
(void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size,
kp->kb_total - kp->kb_totalfree,
kp->kb_totalfree, kp->kb_calls,
kp->kb_highwat, kp->kb_couldfree);
totfree += size * kp->kb_totalfree;
}
/*
* If kmem statistics are not being gathered by the kernel,
* first will still be 1.
*/
if (first) {
printf(
"Kmem statistics are not being gathered by the kernel.\n");
return;
}
kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
(void)printf("\nMemory usage type by bucket size\n");
(void)printf(" Size Type(s)\n");
kp = &buckets[MINBUCKET];
for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
if (kp->kb_calls == 0)
continue;
first = 1;
len = 8;
for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
if (ks->ks_calls == 0)
continue;
if ((ks->ks_size & j) == 0)
continue;
if (kmemnames[i] == 0) {
kmemnames[i] = malloc(10);
/* strlen("undef/")+3+1);*/
snprintf(kmemnames[i], 10, "undef/%d", i);
/* same 10 as above!!! */
}
name = kmemnames[i];
len += 2 + strlen(name);
if (first)
printf("%8d %s", j, name);
else
printf(",");
if (len >= 80) {
printf("\n\t ");
len = 10 + strlen(name);
}
if (!first)
printf(" %s", name);
first = 0;
}
printf("\n");
}
(void)printf(
"\nMemory statistics by type Type Kern\n");
(void)printf(
" Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
if (ks->ks_calls == 0)
continue;
(void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
kmemnames[i] ? kmemnames[i] : "undefined",
ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
(ks->ks_maxused + 1023) / 1024,
(ks->ks_limit + 1023) / 1024, ks->ks_calls,
ks->ks_limblocks, ks->ks_mapblocks);
first = 1;
for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
if ((ks->ks_size & j) == 0)
continue;
if (first)
printf(" %d", j);
else
printf(",%d", j);
first = 0;
}
printf("\n");
totuse += ks->ks_memuse;
totreq += ks->ks_calls;
}
(void)printf("\nMemory Totals: In Use Free Requests\n");
(void)printf(" %7ldK %6ldK %8ld\n",
(totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
}
void
dopool()
{
int first;
long addr;
long total = 0, inuse = 0;
TAILQ_HEAD(,pool) pool_head;
struct pool pool, *pp = &pool;
kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
addr = (long)TAILQ_FIRST(&pool_head);
for (first = 1; addr != 0; ) {
char name[32], maxp[32];
if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
(void)fprintf(stderr, "vmstat: pool chain trashed: %s\n",
kvm_geterr(kd));
exit(1);
}
if (kvm_read(kd, (long)pp->pr_wchan, name, sizeof name) < 0) {
(void)fprintf(stderr, "vmstat: pool name trashed: %s\n",
kvm_geterr(kd));
exit(1);
}
name[31]='\0';
if (first) {
(void)printf("Memory resource pool statistics\n");
(void)printf(
"%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
"Name",
"Size",
"Requests",
"Fail",
"Releases",
"Pgreq",
"Pgrel",
"Npage",
"Hiwat",
"Minpg",
"Maxpg",
"Idle");
first = 0;
}
if (pp->pr_maxpages == UINT_MAX)
sprintf(maxp, "inf");
else
sprintf(maxp, "%6u", pp->pr_maxpages);
(void)printf(
"%-11s%5u%9lu%5lu%9lu%6lu%6lu%6d%6d%6d%6s%5lu\n",
name,
pp->pr_size,
pp->pr_nget,
pp->pr_nfail,
pp->pr_nput,
pp->pr_npagealloc,
pp->pr_npagefree,
pp->pr_npages,
pp->pr_hiwat,
pp->pr_minpages,
maxp,
pp->pr_nidle);
inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
total += pp->pr_npages * pp->pr_pagesz;
addr = (long)TAILQ_NEXT(pp, pr_poollist);
}
printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
inuse/1024, total/1024, (double)(100 * inuse) / total);
}
/*
* kread reads something from the kernel, given its nlist index.
*/
void
kread(nlx, addr, size)
int nlx;
void *addr;
size_t size;
{
const char *sym;
if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
sym = namelist[nlx].n_name;
if (*sym == '_')
++sym;
(void)fprintf(stderr,
"vmstat: symbol %s not defined\n", sym);
exit(1);
}
if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
sym = namelist[nlx].n_name;
if (*sym == '_')
++sym;
(void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd));
exit(1);
}
}
struct nlist histnl[] = {
{ "_uvm_histories" },
#define X_UVM_HISTORIES 0
{ NULL },
};
/*
* Traverse the UVM history buffers, performing the requested action.
*
* Note, we assume that if we're not listing, we're dumping.
*/
void
hist_traverse(todo, histname)
int todo;
const char *histname;
{
struct uvm_history_head histhead;
struct uvm_history hist, *histkva;
char *name = NULL;
size_t namelen = 0;
if (kvm_nlist(kd, histnl) != 0) {
printf("UVM history is not compiled into the kernel.\n");
return;
}
if (kvm_read(kd, histnl[X_UVM_HISTORIES].n_value, &histhead,
sizeof(histhead)) != sizeof(histhead)) {
warnx("unable to read %s: %s",
histnl[X_UVM_HISTORIES].n_name, kvm_geterr(kd));
return;
}
if (histhead.lh_first == NULL) {
printf("No active UVM history logs.\n");
return;
}
if (todo & HISTLIST)
printf("Active UVM histories:");
for (histkva = histhead.lh_first; histkva != NULL;
histkva = hist.list.le_next) {
if (kvm_read(kd, (u_long)histkva, &hist, sizeof(hist)) !=
sizeof(hist)) {
warnx("unable to read history at %p: %s",
histkva, kvm_geterr(kd));
goto out;
}
if (hist.namelen > namelen) {
if (name != NULL)
free(name);
namelen = hist.namelen;
if ((name = malloc(namelen + 1)) == NULL)
err(1, "malloc history name");
}
if (kvm_read(kd, (u_long)hist.name, name, namelen) !=
namelen) {
warnx("unable to read history name at %p: %s",
hist.name, kvm_geterr(kd));
goto out;
}
name[namelen] = '\0';
if (todo & HISTLIST)
printf(" %s", name);
else {
/*
* If we're dumping all histories, do it, else
* check to see if this is the one we want.
*/
if (histname == NULL || strcmp(histname, name) == 0) {
if (histname == NULL)
printf("\nUVM history `%s':\n", name);
hist_dodump(&hist);
}
}
}
if (todo & HISTLIST)
printf("\n");
out:
if (name != NULL)
free(name);
}
/*
* Actually dump the history buffer at the specified KVA.
*/
void
hist_dodump(histp)
struct uvm_history *histp;
{
struct uvm_history_ent *histents, *e;
size_t histsize;
char *fmt = NULL, *fn = NULL;
size_t fmtlen = 0, fnlen = 0;
int i;
histsize = sizeof(struct uvm_history_ent) * histp->n;
if ((histents = malloc(histsize)) == NULL)
err(1, "malloc history entries");
memset(histents, 0, histsize);
if (kvm_read(kd, (u_long)histp->e, histents, histsize) != histsize) {
warnx("unable to read history entries at %p: %s",
histp->e, kvm_geterr(kd));
goto out;
}
i = histp->f;
do {
e = &histents[i];
if (e->fmt != NULL) {
if (e->fmtlen > fmtlen) {
if (fmt != NULL)
free(fmt);
fmtlen = e->fmtlen;
if ((fmt = malloc(fmtlen + 1)) == NULL)
err(1, "malloc printf format");
}
if (e->fnlen > fnlen) {
if (fn != NULL)
free(fn);
fnlen = e->fnlen;
if ((fn = malloc(fnlen + 1)) == NULL)
err(1, "malloc function name");
}
if (kvm_read(kd, (u_long)e->fmt, fmt, fmtlen)
!= fmtlen) {
warnx("unable to read printf format "
"at %p: %s", e->fmt, kvm_geterr(kd));
goto out;
}
fmt[fmtlen] = '\0';
if (kvm_read(kd, (u_long)e->fn, fn, fnlen) != fnlen) {
warnx("unable to read function name "
"at %p: %s", e->fn, kvm_geterr(kd));
goto out;
}
fn[fnlen] = '\0';
printf("%06ld.%06ld ", e->tv.tv_sec, e->tv.tv_usec);
printf("%s#%ld: ", fn, e->call);
printf(fmt, e->v[0], e->v[1], e->v[2], e->v[3]);
printf("\n");
}
i = (i + 1) % histp->n;
} while (i != histp->f);
out:
free(histents);
if (fmt != NULL)
free(fmt);
if (fn != NULL)
free(fn);
}
void
usage()
{
(void)fprintf(stderr,
"usage: vmstat [-fHilms] [-h histname] [-c count] [-M core] \
[-N system] [-w wait] [disks]\n");
exit(1);
}
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