File: [local] / src / usr.bin / vmstat / vmstat.c (download)
Revision 1.48, Wed Mar 21 23:51:47 2001 UTC (23 years, 2 months ago) by art
Branch: MAIN
CVS Tags: OPENBSD_2_9_BASE, OPENBSD_2_9
Changes since 1.47: +157 -97 lines
Add printing of pool statistics for -m.
From NetBSD.
|
/* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
/* $OpenBSD: vmstat.c,v 1.48 2001/03/21 23:51:47 art Exp $ */
/*
* 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.
*/
#ifndef lint
static char 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 8.1 (Berkeley) 6/6/93";
#else
static char rcsid[] = "$NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd 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/fcntl.h>
#include <sys/ioctl.h>
#include <sys/sysctl.h>
#include <sys/device.h>
#include <sys/pool.h>
#include <vm/vm.h>
#include <time.h>
#include <nlist.h>
#include <kvm.h>
#include <err.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"
#ifdef UVM
#include <uvm/uvm_extern.h>
#endif
struct nlist namelist[] = {
#define X_CPTIME 0
{ "_cp_time" },
#if defined(UVM)
#define X_UVMEXP 1
{ "_uvmexp" },
#else
#define X_SUM 1
{ "_cnt" },
#endif
#define X_BOOTTIME 2
{ "_boottime" },
#define X_HZ 3
{ "_hz" },
#define X_STATHZ 4
{ "_stathz" },
#define X_NCHSTATS 5
{ "_nchstats" },
#define X_INTRNAMES 6
{ "_intrnames" },
#define X_EINTRNAMES 7
{ "_eintrnames" },
#define X_INTRCNT 8
{ "_intrcnt" },
#define X_EINTRCNT 9
{ "_eintrcnt" },
#define X_KMEMSTAT 10
{ "_kmemstats" },
#define X_KMEMBUCKETS 11
{ "_bucket" },
#define X_ALLEVENTS 12
{ "_allevents" },
#define X_FORKSTAT 13
{ "_forkstat" },
#define X_POOLHEAD 14
{ "_pool_head" },
#define X_END 15
#if defined(__pc532__)
#define X_IVT (X_END)
{ "_ivt" },
#endif
#if defined(__i386__)
#define X_INTRHAND (X_END)
{ "_intrhand" },
#define X_INTRSTRAY (X_END+1)
{ "_intrstray" },
#endif
{ "" },
};
/* Objects defined in dkstats.c */
extern struct _disk cur;
extern char **dr_name;
extern int *dk_select, dk_ndrive;
#ifdef UVM
struct uvmexp uvmexp, ouvmexp;
#else
struct vmmeter sum, osum;
#endif
int ndrives;
int winlines = 20;
kvm_t *kd;
#define FORKSTAT 0x01
#define INTRSTAT 0x02
#define MEMSTAT 0x04
#define SUMSTAT 0x08
#define TIMESTAT 0x10
#define VMSTAT 0x20
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 usage __P((void));
void dotimes __P((void));
void doforkst __P((void));
void printhdr __P((void));
char **choosedrives __P((char **));
/* Namelist and memory file names. */
char *nlistf, *memf;
int
main(argc, argv)
register int argc;
register char **argv;
{
extern int optind;
extern char *optarg;
register int c, todo;
u_int interval;
int reps;
char errbuf[_POSIX2_LINE_MAX];
memf = nlistf = NULL;
interval = reps = todo = 0;
while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != -1) {
switch (c) {
case 'c':
reps = atoi(optarg);
break;
case 'f':
todo |= FORKSTAT;
break;
case 'i':
todo |= INTRSTAT;
break;
case 'M':
memf = optarg;
break;
case 'm':
todo |= MEMSTAT;
break;
case 'N':
nlistf = optarg;
break;
case 's':
todo |= SUMSTAT;
break;
case 't':
todo |= TIMESTAT;
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 so that bad
* guys can't print interesting stuff from kernel memory.
*/
if (nlistf != NULL || memf != NULL) {
setegid(getgid());
setgid(getgid());
}
kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
if (kd == 0) {
(void)fprintf(stderr,
"vmstat: kvm_openfiles: %s\n", errbuf);
exit(1);
}
if ((c = kvm_nlist(kd, namelist)) != 0) {
setegid(getgid());
setgid(getgid());
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); /* Initialize disk stats, no disks selected. */
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;
}
setegid(getgid());
setgid(getgid());
#define BACKWARD_COMPATIBILITY
#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 & FORKSTAT)
doforkst();
if (todo & MEMSTAT) {
domem();
dopool();
}
if (todo & SUMSTAT)
dosum();
if (todo & TIMESTAT)
dotimes();
if (todo & INTRSTAT)
dointr();
if (todo & VMSTAT)
dovmstat(interval, reps);
exit(0);
}
char **
choosedrives(argv)
char **argv;
{
register 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);
}
time_t
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;
void needhdr();
int mib[2];
size_t size;
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();
#ifdef UVM
kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
#else
kread(X_SUM, &sum, sizeof(sum));
#endif
size = sizeof(total);
mib[0] = CTL_VM;
mib[1] = VM_METER;
if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
printf("Can't get kerninfo: %s\n", strerror(errno));
bzero(&total, sizeof(total));
}
(void)printf("%2u%2u%2u",
total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
#define rate(x) (((x) + halfuptime) / uptime) /* round */
#ifdef UVM
#define pgtok(a) ((a) * ((int)uvmexp.pagesize >> 10))
#else
#define pgtok(a) ((a) * ((int)sum.v_page_size >> 10))
#endif
(void)printf("%7u%7u ",
pgtok(total.t_avm), pgtok(total.t_free));
#ifdef UVM
(void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
(void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
(void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
(void)printf("%3u %3u ",
rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
(void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
dkstats();
(void)printf("%4u %4u %3u ",
rate(uvmexp.intrs - ouvmexp.intrs),
rate(uvmexp.syscalls - ouvmexp.syscalls),
rate(uvmexp.swtch - ouvmexp.swtch));
#else
(void)printf("%4u ", rate(sum.v_faults - osum.v_faults));
(void)printf("%3u ",
rate(sum.v_reactivated - osum.v_reactivated));
(void)printf("%3u ", rate(sum.v_pageins - osum.v_pageins));
(void)printf("%3u %3u ",
rate(sum.v_pageouts - osum.v_pageouts), 0);
(void)printf("%3u ", rate(sum.v_scan - osum.v_scan));
dkstats();
(void)printf("%4u %4u %3u ",
rate(sum.v_intr - osum.v_intr),
rate(sum.v_syscall - osum.v_syscall),
rate(sum.v_swtch - osum.v_swtch));
#endif
cpustats();
(void)printf("\n");
(void)fflush(stdout);
if (reps >= 0 && --reps <= 0)
break;
#ifdef UVM
ouvmexp = uvmexp;
#else
osum = sum;
#endif
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()
{
register int i;
(void)printf(" procs memory page%*s", 20, "");
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()
{
hdrcnt = 1;
}
void
dotimes()
{
u_int pgintime, rectime;
pgintime = 0;
rectime = 0;
#ifdef UVM
kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
(void)printf("%u reactivates, %u total time (usec)\n",
uvmexp.pdreact, rectime);
(void)printf("average: %u usec / reclaim\n", rectime / uvmexp.pdreact);
(void)printf("\n");
(void)printf("%u page ins, %u total time (msec)\n",
uvmexp.pageins, pgintime / 10);
(void)printf("average: %8.1f msec / page in\n",
pgintime / (uvmexp.pageins * 10.0));
#else
kread(X_SUM, &sum, sizeof(sum));
(void)printf("%u reactivates, %u total time (usec)\n",
sum.v_reactivated, rectime);
(void)printf("average: %u usec / reclaim\n", rectime / sum.v_reactivated);
(void)printf("\n");
(void)printf("%u page ins, %u total time (msec)\n",
sum.v_pageins, pgintime / 10);
(void)printf("average: %8.1f msec / page in\n",
pgintime / (sum.v_pageins * 10.0));
#endif
}
int
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) pct((long)(top), (long)(bot))
void
dosum()
{
struct nchstats nchstats;
long nchtotal;
#ifdef UVM
kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
/* vm_page constants */
(void)printf("%11u bytes per page\n", uvmexp.pagesize);
/* vm_page counters */
(void)printf("%11u pages managed\n", uvmexp.npages);
(void)printf("%11u pages free\n", uvmexp.free);
(void)printf("%11u pages active\n", uvmexp.active);
(void)printf("%11u pages inactive\n", uvmexp.inactive);
(void)printf("%11u pages being paged out\n", uvmexp.paging);
(void)printf("%11u pages wired\n", uvmexp.wired);
(void)printf("%11u pages reserved for pagedaemon\n",
uvmexp.reserve_pagedaemon);
(void)printf("%11u pages reserved for kernel\n",
uvmexp.reserve_kernel);
/* swap */
(void)printf("%11u swap pages\n", uvmexp.swpages);
(void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
(void)printf("%11u total anon's in system\n", uvmexp.nanon);
(void)printf("%11u free anon's\n", uvmexp.nfreeanon);
/* stat counters */
(void)printf("%11u page faults\n", uvmexp.faults);
(void)printf("%11u traps\n", uvmexp.traps);
(void)printf("%11u interrupts\n", uvmexp.intrs);
(void)printf("%11u cpu context switches\n", uvmexp.swtch);
(void)printf("%11u software interrupts\n", uvmexp.softs);
(void)printf("%11u syscalls\n", uvmexp.syscalls);
(void)printf("%11u pagein operations\n", uvmexp.pageins);
(void)printf("%11u swap ins\n", uvmexp.swapins);
(void)printf("%11u swap outs\n", uvmexp.swapouts);
(void)printf("%11u forks\n", uvmexp.forks);
(void)printf("%11u forks where vmspace is shared\n",
uvmexp.forks_sharevm);
/* daemon counters */
(void)printf("%11u number of times the pagedeamon woke up\n",
uvmexp.pdwoke);
(void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
(void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
(void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
(void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
(void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
#else
kread(X_SUM, &sum, sizeof(sum));
(void)printf("%11u cpu context switches\n", sum.v_swtch);
(void)printf("%11u device interrupts\n", sum.v_intr);
(void)printf("%11u software interrupts\n", sum.v_soft);
(void)printf("%11u traps\n", sum.v_trap);
(void)printf("%11u system calls\n", sum.v_syscall);
(void)printf("%11u total faults taken\n", sum.v_faults);
(void)printf("%11u swap ins\n", sum.v_swpin);
(void)printf("%11u swap outs\n", sum.v_swpout);
(void)printf("%11u pages swapped in\n", sum.v_pswpin / CLSIZE);
(void)printf("%11u pages swapped out\n", sum.v_pswpout / CLSIZE);
(void)printf("%11u page ins\n", sum.v_pageins);
(void)printf("%11u page outs\n", sum.v_pageouts);
(void)printf("%11u pages paged in\n", sum.v_pgpgin);
(void)printf("%11u pages paged out\n", sum.v_pgpgout);
(void)printf("%11u pages reactivated\n", sum.v_reactivated);
(void)printf("%11u intransit blocking page faults\n", sum.v_intrans);
(void)printf("%11u zero fill pages created\n", sum.v_nzfod / CLSIZE);
(void)printf("%11u zero fill page faults\n", sum.v_zfod / CLSIZE);
(void)printf("%11u pages examined by the clock daemon\n", sum.v_scan);
(void)printf("%11u revolutions of the clock hand\n", sum.v_rev);
(void)printf("%11u VM object cache lookups\n", sum.v_lookups);
(void)printf("%11u VM object hits\n", sum.v_hits);
(void)printf("%11u total VM faults taken\n", sum.v_vm_faults);
(void)printf("%11u copy-on-write faults\n", sum.v_cow_faults);
(void)printf("%11u pages freed by daemon\n", sum.v_dfree);
(void)printf("%11u pages freed by exiting processes\n", sum.v_pfree);
(void)printf("%11u pages free\n", sum.v_free_count);
(void)printf("%11u pages wired down\n", sum.v_wire_count);
(void)printf("%11u pages active\n", sum.v_active_count);
(void)printf("%11u pages inactive\n", sum.v_inactive_count);
(void)printf("%11u bytes per page\n", sum.v_page_size);
#endif
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("%11ld total name lookups\n", nchtotal);
(void)printf(
"%11s cache hits (%d%% pos + %d%% neg) system %d%% per-directory\n",
"", PCT(nchstats.ncs_goodhits, nchtotal),
PCT(nchstats.ncs_neghits, nchtotal),
PCT(nchstats.ncs_pass2, nchtotal));
(void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
PCT(nchstats.ncs_badhits, nchtotal),
PCT(nchstats.ncs_falsehits, nchtotal),
PCT(nchstats.ncs_long, nchtotal));
}
void
doforkst()
{
struct forkstat fks;
kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
(void)printf("%d forks, %d pages, average %.2f\n",
fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
(void)printf("%d vforks, %d pages, average %.2f\n",
fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
(void)printf("%d rforks, %d pages, average %.2f\n",
fks.cntrfork, fks.sizrfork, (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
(void)printf("%d kthread creations, %d pages, average %.2f\n",
fks.cntkthread, fks.sizkthread, (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
}
void
dkstats()
{
register 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()
{
register 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()
{
register long i, j, inttotal;
time_t 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 %10ld %8ld\n", iname,
ivp->iv_cnt, ivp->iv_cnt / uptime);
inttotal += ivp->iv_cnt;
}
}
(void)printf("Total %10ld %8ld\n",
inttotal, inttotal / uptime);
}
}
#elif defined(__i386__)
/* To get struct intrhand */
#define _KERNEL
#include <machine/psl.h>
#undef _KERNEL
void
dointr()
{
struct intrhand *intrhand[16], *ihp, ih;
long inttotal;
time_t uptime;
int intrstray[16];
char iname[17], fname[31];
int i;
iname[16] = '\0';
uptime = getuptime();
kread(X_INTRHAND, intrhand, sizeof(intrhand));
kread(X_INTRSTRAY, intrstray, sizeof(intrstray));
(void)printf("interrupt total rate\n");
inttotal = 0;
for (i = 0; i < 16; i++) {
ihp = intrhand[i];
while (ihp) {
if (kvm_read(kd, (u_long)ihp, &ih, sizeof(ih)) != sizeof(ih))
errx(1, "vmstat: ih: %s", kvm_geterr(kd));
if (kvm_read(kd, (u_long)ih.ih_what, iname, 16) != 16)
errx(1, "vmstat: ih_what: %s", kvm_geterr(kd));
snprintf(fname, sizeof fname, "irq%d/%s", i, iname);
printf("%-16.16s %10ld %8ld\n", fname, ih.ih_count,
ih.ih_count / uptime);
inttotal += ih.ih_count;
ihp = ih.ih_next;
}
}
for (i = 0; i < 16; i++)
if (intrstray[i]) {
printf("Stray irq %-2d %10d %8d\n",
i, intrstray[i], intrstray[i] / uptime);
inttotal += intrstray[i];
}
printf("Total %10ld %8ld\n", inttotal, inttotal / uptime);
}
#else
void
dointr()
{
register long *intrcnt, inttotal;
time_t uptime;
register int nintr, inamlen;
register 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 %12ld %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 (strcmp(evcnt.ev_name, "intr") == 0) {
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 %12d %8ld\n", dev.dv_xname,
evcnt.ev_count, (long)(evcnt.ev_count / uptime));
inttotal += evcnt.ev_count++;
}
evptr = evcnt.ev_list.tqe_next;
}
(void)printf("Total %12ld %8ld\n", inttotal, inttotal / uptime);
}
#endif
/*
* These names are defined in <sys/malloc.h>.
*/
char *kmemnames[] = INITKMEMNAMES;
void
domem()
{
register struct kmembuckets *kp;
register struct kmemstats *ks;
register 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;
name = kmemnames[i] ? kmemnames[i] : "undefined";
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(void)
{
int first, ovflw;
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, "%u", pp->pr_maxpages);
/*
* Print single word. `ovflow' is number of characters didn't fit
* on the last word. `fmt' is a format string to print this word.
* It must contain asterisk for field width. `width' is a width
* occupied by this word. `fixed' is a number of constant chars in
* `fmt'. `val' is a value to be printed using format string `fmt'.
*/
#define PRWORD(ovflw, fmt, width, fixed, val) do { \
(ovflw) += printf((fmt), \
(width) - (fixed) - (ovflw) > 0 ? \
(width) - (fixed) - (ovflw) : 0, \
(val)) - (width); \
if ((ovflw) < 0) \
(ovflw) = 0; \
} while (/* CONSTCOND */0)
ovflw = 0;
PRWORD(ovflw, "%-*s", 11, 0, name);
PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nput);
PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
PRWORD(ovflw, " %*s", 6, 1, maxp);
PRWORD(ovflw, " %*lu\n", 5, 1, 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);
}
inuse /= 1024;
total /= 1024;
printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
inuse, total, (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;
{
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);
}
}
void
usage()
{
(void)fprintf(stderr,
"usage: vmstat [-fimst] [-c count] [-M core] \
[-N system] [-w wait] [disks]\n");
exit(1);
}
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