2 * Copyright (c) 1980, 1986, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#) Copyright (c) 1980, 1986, 1991, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)vmstat.c 8.1 (Berkeley) 6/6/93
31 * $FreeBSD: src/usr.bin/vmstat/vmstat.c,v 1.38.2.4 2001/07/31 19:52:41 tmm Exp $
35 #include <sys/param.h>
38 #include <sys/namei.h>
39 #include <sys/malloc.h>
40 #include <sys/signal.h>
41 #include <sys/fcntl.h>
42 #include <sys/ioctl.h>
43 #include <sys/sysctl.h>
44 #include <sys/vmmeter.h>
45 #include <sys/interrupt.h>
47 #include <vm/vm_param.h>
48 #include <vm/vm_zone.h>
66 static struct nlist namelist[] = {
68 { "_boottime", 0, 0, 0, 0 },
70 { "_nchstats", 0, 0, 0, 0 },
71 #define X_KMEMSTATISTICS 2
72 { "_kmemstatistics", 0, 0, 0, 0 },
74 { "_zlist", 0, 0, 0, 0 },
77 { "_deficit", 0, 0, 0, 0 },
79 { "_forkstat", 0, 0, 0, 0 },
81 { "_rectime", 0, 0, 0, 0 },
83 { "_pgintime", 0, 0, 0, 0 },
85 { "_xstats", 0, 0, 0, 0 },
93 #define ONEMB (1024L * 1024L)
96 LIST_HEAD(zlist, vm_zone);
98 struct statinfo cur, last;
99 int num_devices, maxshowdevs;
101 struct device_selection *dev_select;
103 struct devstat_match *matches;
105 int num_devices_specified, num_selections;
106 long select_generation;
107 char **specified_devices;
108 devstat_select_mode select_mode;
110 struct vmmeter vmm, ovmm;
111 struct vmstats vms, ovms;
116 int unformatted_opt = 0;
121 struct kinfo_cputime cp_time, old_cp_time, diff_cp_time;
123 #define FORKSTAT 0x01
124 #define INTRSTAT 0x02
127 #define TIMESTAT 0x10
129 #define ZMEMSTAT 0x40
131 static void cpustats(void);
132 static void dointr(void);
133 static void domem(void);
134 static void dosum(void);
135 static void dozmem(u_int interval, int reps);
136 static void dovmstat(u_int, int);
137 static void kread(int, void *, size_t);
138 static void usage(void);
139 static char **getdrivedata(char **);
140 static long getuptime(void);
141 static void needhdr(int);
142 static long pct(long, long);
145 static void dotimes(void); /* Not implemented */
146 static void doforkst(void);
148 static void printhdr(void);
149 static const char *formatnum(intmax_t value, int width, int do10s);
150 static void devstats(int dooutput);
153 main(int argc, char **argv)
156 u_int interval; /* milliseconds */
159 char errbuf[_POSIX2_LINE_MAX];
161 memf = nlistf = NULL;
162 interval = reps = todo = 0;
164 while ((c = getopt(argc, argv, "bc:fiM:mN:n:p:stuvw:z")) != -1) {
176 errx(EX_USAGE, "sorry, -f is not (re)implemented yet");
193 maxshowdevs = atoi(optarg);
195 errx(1, "number of devices %d is < 0",
199 if (buildmatch(optarg, &matches, &num_matches) != 0)
200 errx(1, "%s", devstat_errbuf);
209 errx(EX_USAGE, "sorry, -t is not (re)implemented yet");
219 interval = (u_int)(strtod(optarg, NULL) * 1000.0);
235 * Discard setgid privileges if not the running kernel so that bad
236 * guys can't print interesting stuff from kernel memory.
238 if (nlistf != NULL || memf != NULL)
241 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
243 errx(1, "kvm_openfiles: %s", errbuf);
245 if ((c = kvm_nlist(kd, namelist)) != 0) {
247 warnx("undefined symbols:");
248 for (c = 0; c < (int)NELEM(namelist); c++)
249 if (namelist[c].n_type == 0)
250 fprintf(stderr, " %s",
254 warnx("kvm_nlist: %s", kvm_geterr(kd));
259 struct winsize winsize;
262 * Make sure that the userland devstat version matches the
263 * kernel devstat version. If not, exit and print a
264 * message informing the user of his mistake.
266 if (checkversion() < 0)
267 errx(1, "%s", devstat_errbuf);
270 argv = getdrivedata(argv);
272 ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize);
273 if (winsize.ws_row > 0)
274 winlines = winsize.ws_row;
278 #define BACKWARD_COMPATIBILITY
279 #ifdef BACKWARD_COMPATIBILITY
281 interval = (u_int)(strtod(*argv, NULL) * 1000.0);
301 dozmem(interval, reps);
311 dovmstat(interval, reps);
316 getdrivedata(char **argv)
318 if ((num_devices = getnumdevs()) < 0)
319 errx(1, "%s", devstat_errbuf);
321 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
322 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
323 bzero(cur.dinfo, sizeof(struct devinfo));
324 bzero(last.dinfo, sizeof(struct devinfo));
326 if (getdevs(&cur) == -1)
327 errx(1, "%s", devstat_errbuf);
329 num_devices = cur.dinfo->numdevs;
330 generation = cur.dinfo->generation;
332 specified_devices = (char **)malloc(sizeof(char *));
333 for (num_devices_specified = 0; *argv; ++argv) {
336 num_devices_specified++;
337 specified_devices = (char **)realloc(specified_devices,
339 num_devices_specified);
340 specified_devices[num_devices_specified - 1] = *argv;
344 if (nflag == 0 && maxshowdevs < num_devices_specified)
345 maxshowdevs = num_devices_specified;
348 * People are generally only interested in disk statistics when
349 * they're running vmstat. So, that's what we're going to give
350 * them if they don't specify anything by default. We'll also give
351 * them any other random devices in the system so that we get to
352 * maxshowdevs devices, if that many devices exist. If the user
353 * specifies devices on the command line, either through a pattern
354 * match or by naming them explicitly, we will give the user only
357 if ((num_devices_specified == 0) && (num_matches == 0)) {
358 if (buildmatch("da", &matches, &num_matches) != 0)
359 errx(1, "%s", devstat_errbuf);
361 select_mode = DS_SELECT_ADD;
363 select_mode = DS_SELECT_ONLY;
366 * At this point, selectdevs will almost surely indicate that the
367 * device list has changed, so we don't look for return values of 0
368 * or 1. If we get back -1, though, there is an error.
370 if (selectdevs(&dev_select, &num_selected, &num_selections,
371 &select_generation, generation, cur.dinfo->devices,
372 num_devices, matches, num_matches, specified_devices,
373 num_devices_specified, select_mode,
374 maxshowdevs, 0) == -1)
375 errx(1, "%s", devstat_errbuf);
383 static time_t now, boottime;
387 kread(X_BOOTTIME, &boottime, sizeof(boottime));
389 uptime = now - boottime;
390 if (uptime <= 0 || uptime > 60*60*24*365*10)
391 errx(1, "time makes no sense; namelist must be wrong");
398 dovmstat(u_int interval, int reps)
400 struct vmtotal total;
401 struct devinfo *tmp_dinfo;
402 size_t vmm_size = sizeof(vmm);
403 size_t vms_size = sizeof(vms);
404 size_t vmt_size = sizeof(total);
408 signal(SIGCONT, needhdr);
415 if (kinfo_get_sched_cputime(&cp_time))
416 err(1, "kinfo_get_sched_cputime");
418 tmp_dinfo = last.dinfo;
419 last.dinfo = cur.dinfo;
420 cur.dinfo = tmp_dinfo;
421 last.busy_time = cur.busy_time;
424 * Here what we want to do is refresh our device stats.
425 * getdevs() returns 1 when the device list has changed.
426 * If the device list has changed, we want to go through
427 * the selection process again, in case a device that we
428 * were previously displaying has gone away.
430 switch (getdevs(&cur)) {
432 errx(1, "%s", devstat_errbuf);
437 num_devices = cur.dinfo->numdevs;
438 generation = cur.dinfo->generation;
440 retval = selectdevs(&dev_select, &num_selected,
441 &num_selections, &select_generation,
442 generation, cur.dinfo->devices,
443 num_devices, matches, num_matches,
445 num_devices_specified, select_mode,
449 errx(1, "%s", devstat_errbuf);
462 if (sysctlbyname("vm.vmstats", &vms, &vms_size, NULL, 0)) {
463 perror("sysctlbyname: vm.vmstats");
466 if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) {
467 perror("sysctlbyname: vm.vmmeter");
470 if (sysctlbyname("vm.vmtotal", &total, &vmt_size, NULL, 0)) {
471 perror("sysctlbyname: vm.vmtotal");
475 printf("%3ld %2ld %2ld",
477 total.t_dw + total.t_pw,
482 (intmax_t)(initial ? (x) : ((intmax_t)(x) * 1000 + interval / 2) \
487 formatnum((int64_t)total.t_free *
491 formatnum(rate(vmm.v_vm_faults -
495 formatnum(rate(vmm.v_reactivated -
499 formatnum(rate(vmm.v_swapin + vmm.v_vnodein -
504 formatnum(rate(vmm.v_swapout + vmm.v_vnodeout -
509 formatnum(rate(vmm.v_tfree - ovmm.v_tfree),
515 formatnum(rate(vmm.v_intr - ovmm.v_intr),
518 formatnum(rate(vmm.v_syscall -
522 formatnum(rate(vmm.v_swtch -
529 if (reps >= 0 && --reps <= 0)
532 usleep(interval * 1000);
539 formatnum(intmax_t value, int width, int do10s)
541 static char buf[16][64];
551 if (unformatted_opt) {
554 snprintf(buf[bi], sizeof(buf[bi]), "%4jd", value);
557 snprintf(buf[bi], sizeof(buf[bi]), "%5jd", value);
560 snprintf(buf[bi], sizeof(buf[bi]), "%jd", value);
573 } else if (value < 10*1024) {
576 } else if (value < 1000*1024) {
579 } else if (value < 10*1024*1024) {
581 d = d / (1024 * 1024);
582 } else if (value < 1000*1024*1024) {
584 d = d / (1024 * 1024);
587 d = d / (1024.0 * 1024.0 * 1024.0);
593 } else if (value < 10*1024) {
596 } else if (value < 100*1024 && do10s) {
599 } else if (value < 1000*1024) {
602 } else if (value < 10*1024*1024) {
604 d = d / (1024 * 1024);
605 } else if (value < 100*1024*1024 && do10s) {
607 d = d / (1024 * 1024);
608 } else if (value < 1000*1024*1024) {
610 d = d / (1024 * 1024);
611 } else if (value < 10LL*1024*1024*1024) {
613 d = d / (1024.0 * 1024.0 * 1024.0);
614 } else if (value < 100LL*1024*1024*1024 && do10s) {
616 d = d / (1024.0 * 1024.0 * 1024.0);
617 } else if (value < 1000LL*1024*1024*1024) {
619 d = d / (1024.0 * 1024.0 * 1024.0);
622 d = d / (1024.0 * 1024.0 * 1024.0 * 1024.0);
626 fprintf(stderr, "formatnum: unsupported width %d\n", width);
630 snprintf(buf[bi], sizeof(buf[bi]), fmt, d);
639 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs;
640 printf("--procs-- ---memory-- -------paging------ ");
642 printf("--disks%.*s",
644 "---------------------------------");
645 else if (num_shown == 1)
647 printf(" -----faults------ ---cpu---\n");
648 printf(" r b w fre flt re pi po fr ");
649 for (i = 0; i < num_devices; i++)
650 if ((dev_select[i].selected)
651 && (dev_select[i].selected <= maxshowdevs))
652 printf(" %c%c%d ", dev_select[i].device_name[0],
653 dev_select[i].device_name[1],
654 dev_select[i].unit_number);
655 printf(" int sys ctx us sy id\n");
656 hdrcnt = winlines - 2;
660 * Force a header to be prepended to the next output.
663 needhdr(__unused int signo)
670 pct(long top, long bot)
676 ans = (quad_t)top * 100 / bot;
680 #define PCT(top, bot) pct((long)(top), (long)(bot))
685 struct nchstats *nch_tmp, nchstats;
686 size_t vms_size = sizeof(vms);
687 size_t vmm_size = sizeof(vmm);
691 size_t nch_size = sizeof(struct nchstats) * SMP_MAXCPU;
693 if (sysctlbyname("vm.vmstats", &vms, &vms_size, NULL, 0)) {
694 perror("sysctlbyname: vm.vmstats");
697 if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) {
698 perror("sysctlbyname: vm.vmstats");
701 printf("%9u cpu context switches\n", vmm.v_swtch);
702 printf("%9u device interrupts\n", vmm.v_intr);
703 printf("%9u software interrupts\n", vmm.v_soft);
704 printf("%9u traps\n", vmm.v_trap);
705 printf("%9u system calls\n", vmm.v_syscall);
706 printf("%9u kernel threads created\n", vmm.v_kthreads);
707 printf("%9u fork() calls\n", vmm.v_forks);
708 printf("%9u vfork() calls\n", vmm.v_vforks);
709 printf("%9u rfork() calls\n", vmm.v_rforks);
710 printf("%9u exec() calls\n", vmm.v_exec);
711 printf("%9u swap pager pageins\n", vmm.v_swapin);
712 printf("%9u swap pager pages paged in\n", vmm.v_swappgsin);
713 printf("%9u swap pager pageouts\n", vmm.v_swapout);
714 printf("%9u swap pager pages paged out\n", vmm.v_swappgsout);
715 printf("%9u vnode pager pageins\n", vmm.v_vnodein);
716 printf("%9u vnode pager pages paged in\n", vmm.v_vnodepgsin);
717 printf("%9u vnode pager pageouts\n", vmm.v_vnodeout);
718 printf("%9u vnode pager pages paged out\n", vmm.v_vnodepgsout);
719 printf("%9u page daemon wakeups\n", vmm.v_pdwakeups);
720 printf("%9u pages examined by the page daemon\n", vmm.v_pdpages);
721 printf("%9u pages reactivated\n", vmm.v_reactivated);
722 printf("%9u copy-on-write faults\n", vmm.v_cow_faults);
723 printf("%9u copy-on-write optimized faults\n", vmm.v_cow_optim);
724 printf("%9u zero fill pages zeroed\n", vmm.v_zfod);
725 printf("%9u zero fill pages prezeroed\n", vmm.v_ozfod);
726 printf("%9u intransit blocking page faults\n", vmm.v_intrans);
727 printf("%9u total VM faults taken\n", vmm.v_vm_faults);
728 printf("%9u pages affected by kernel thread creation\n", vmm.v_kthreadpages);
729 printf("%9u pages affected by fork()\n", vmm.v_forkpages);
730 printf("%9u pages affected by vfork()\n", vmm.v_vforkpages);
731 printf("%9u pages affected by rfork()\n", vmm.v_rforkpages);
732 printf("%9u pages freed\n", vmm.v_tfree);
733 printf("%9u pages freed by daemon\n", vmm.v_dfree);
734 printf("%9u pages freed by exiting processes\n", vmm.v_pfree);
735 printf("%9lu pages active\n", vms.v_active_count);
736 printf("%9lu pages inactive\n", vms.v_inactive_count);
737 printf("%9lu pages in VM cache\n", vms.v_cache_count);
738 printf("%9lu pages wired down\n", vms.v_wire_count);
739 printf("%9lu pages free\n", vms.v_free_count);
740 printf("%9u bytes per page\n", vms.v_page_size);
741 printf("%9u global smp invltlbs\n", vmm.v_smpinvltlb);
743 if ((nch_tmp = malloc(nch_size)) == NULL) {
747 if (sysctlbyname("vfs.cache.nchstats", nch_tmp, &nch_size, NULL, 0)) {
748 perror("sysctlbyname vfs.cache.nchstats");
752 if ((nch_tmp = realloc(nch_tmp, nch_size)) == NULL) {
759 cpucnt = nch_size / sizeof(struct nchstats);
760 kvm_nch_cpuagg(nch_tmp, &nchstats, cpucnt);
762 nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
763 nchstats.ncs_badhits + nchstats.ncs_falsehits +
765 nchpathtotal = nchstats.ncs_longhits + nchstats.ncs_longmiss;
766 printf("%9ld total path lookups\n", nchpathtotal);
767 printf("%9ld total component lookups\n", nchtotal);
769 "%9s cache hits (%ld%% pos + %ld%% neg)\n",
770 "", PCT(nchstats.ncs_goodhits, nchtotal),
771 PCT(nchstats.ncs_neghits, nchtotal));
772 printf("%9s deletions %ld%%, falsehits %ld%%\n", "",
773 PCT(nchstats.ncs_badhits, nchtotal),
774 PCT(nchstats.ncs_falsehits, nchtotal));
784 kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
785 printf("%d forks, %d pages, average %.2f\n",
786 fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
787 printf("%d vforks, %d pages, average %.2f\n",
788 fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork);
793 devstats(int dooutput)
796 long double transfers_per_second;
797 long double busy_seconds;
799 diff_cp_time.cp_user = cp_time.cp_user - old_cp_time.cp_user;
800 diff_cp_time.cp_nice = cp_time.cp_nice - old_cp_time.cp_nice;
801 diff_cp_time.cp_sys = cp_time.cp_sys - old_cp_time.cp_sys;
802 diff_cp_time.cp_intr = cp_time.cp_intr - old_cp_time.cp_intr;
803 diff_cp_time.cp_idle = cp_time.cp_idle - old_cp_time.cp_idle;
804 old_cp_time = cp_time;
806 busy_seconds = compute_etime(cur.busy_time, last.busy_time);
808 for (dn = 0; dn < num_devices; dn++) {
811 if ((dev_select[dn].selected == 0)
812 || (dev_select[dn].selected > maxshowdevs))
815 di = dev_select[dn].position;
817 if (compute_stats(&cur.dinfo->devices[di],
818 &last.dinfo->devices[di], busy_seconds,
820 NULL, &transfers_per_second, NULL,
822 errx(1, "%s", devstat_errbuf);
825 printf("%s ", formatnum(transfers_per_second, 4, 0));
835 total = diff_cp_time.cp_user + diff_cp_time.cp_nice +
836 diff_cp_time.cp_sys + diff_cp_time.cp_intr + diff_cp_time.cp_idle;
839 totusage = 100.0 / total;
843 (diff_cp_time.cp_user + diff_cp_time.cp_nice) * totusage);
845 (diff_cp_time.cp_sys + diff_cp_time.cp_intr) * totusage);
847 diff_cp_time.cp_idle * totusage);
853 u_long *intrcnt, uptime;
855 size_t nintr, inamlen, i, size;
860 uptime = getuptime();
861 if (sysctlbyname("hw.intrnames", NULL, &inamlen, NULL, 0) != 0)
862 errx(1, "sysctlbyname");
863 intrstr = malloc(inamlen);
866 sysctlbyname("hw.intrnames", intrstr, &inamlen, NULL, 0);
867 for (nintr = 0, i = 0; i < inamlen; ++i) {
871 intrname = malloc(nintr * sizeof(char *));
872 for (i = 0; i < nintr; ++i) {
873 intrname[i] = intrstr;
874 intrstr += strlen(intrstr) + 1;
877 size = nintr * sizeof(*intrcnt);
878 intrcnt = calloc(nintr, sizeof(*intrcnt));
881 sysctlbyname("hw.intrcnt", intrcnt, &size, NULL, 0);
884 for (i = 0; i < nintr; ++i) {
885 if (nwidth < (int)strlen(intrname[i]))
886 nwidth = (int)strlen(intrname[i]);
888 if (verbose) nwidth += 12;
890 printf("%-*.*s %11s %10s\n",
891 nwidth, nwidth, "interrupt", "total", "rate");
893 for (i = 0; i < nintr; ++i) {
895 char *infop, irqinfo[72];
897 if ((named = strncmp(intrname[i], "irq", 3)) != 0 ||
906 snprintf(irqinfo, sizeof(irqinfo),
908 irq, cpu, intrname[i]);
910 snprintf(irqinfo, sizeof(irqinfo),
911 "irq%-3zd %3zd: ", irq, cpu);
915 printf("%-*.*s %11lu %10lu\n",
916 nwidth, nwidth, infop,
917 intrcnt[i], intrcnt[i] / uptime);
919 inttotal += intrcnt[i];
921 printf("%-*.*s %11llu %10llu\n",
922 nwidth, nwidth, "Total",
923 (long long)inttotal, (long long)(inttotal / uptime));
926 #define MAX_KMSTATS 1024
928 enum ksuse { KSINUSE, KSMEMUSE, KSCALLS };
931 cpuagg(struct malloc_type *ks, enum ksuse use)
940 for (i = 0; i < SMP_MAXCPU; ++i)
941 ttl += ks->ks_use[i].inuse;
944 for (i = 0; i < SMP_MAXCPU; ++i)
945 ttl += ks->ks_use[i].memuse;
948 for (i = 0; i < SMP_MAXCPU; ++i)
949 ttl += ks->ks_use[i].calls;
958 struct malloc_type *ks;
961 long totuse = 0, totreq = 0;
962 struct malloc_type kmemstats[MAX_KMSTATS], *kmsp;
965 kread(X_KMEMSTATISTICS, &kmsp, sizeof(kmsp));
966 for (nkms = 0; nkms < MAX_KMSTATS && kmsp != NULL; nkms++) {
967 if (sizeof(kmemstats[0]) != kvm_read(kd, (u_long)kmsp,
968 &kmemstats[nkms], sizeof(kmemstats[0])))
969 err(1, "kvm_read(%p)", (void *)kmsp);
970 if (sizeof(buf) != kvm_read(kd,
971 (u_long)kmemstats[nkms].ks_shortdesc, buf, sizeof(buf)))
972 err(1, "kvm_read(%p)",
973 kmemstats[nkms].ks_shortdesc);
974 buf[sizeof(buf) - 1] = '\0';
975 kmemstats[nkms].ks_shortdesc = strdup(buf);
976 kmsp = kmemstats[nkms].ks_next;
979 warnx("truncated to the first %d memory types", nkms);
982 "\nMemory statistics by type\n");
983 printf(" Type Count MemUse Limit Requests\n");
984 for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) {
989 ks_calls = cpuagg(ks, KSCALLS);
993 ks_inuse = cpuagg(ks, KSINUSE);
994 ks_memuse = cpuagg(ks, KSMEMUSE);
996 printf("%19s %s %s %s %s\n",
998 formatnum(ks_inuse, 5, 1),
999 formatnum(ks_memuse, 5, 1),
1000 formatnum(ks->ks_limit, 5, 1),
1001 formatnum(ks_calls, 5, 1));
1003 totuse += ks_memuse;
1006 printf("\nMemory Totals: In Use Requests\n");
1008 formatnum(totuse, 5, 1),
1009 formatnum(totreq, 5, 1));
1015 dozmem(u_int interval, int reps)
1019 struct vm_zone zone;
1020 struct vm_zone copy;
1021 struct vm_zone save[MAXSAVE];
1027 bzero(save, sizeof(save));
1030 kread(X_ZLIST, &zlist, sizeof(zlist));
1031 kz = LIST_FIRST(&zlist);
1035 if (kvm_read(kd, (intptr_t)kz, &zone, sizeof(zone)) !=
1036 (ssize_t)sizeof(zone)) {
1041 zone.znalloc -= save[i].znalloc;
1043 namesz = sizeof(name);
1044 if (kvm_readstr(kd, (intptr_t)zone.zname, name, &namesz) == NULL) {
1048 if (first && interval) {
1050 } else if (zone.zmax) {
1051 printf("%-10s %9ld/%9ld %5ldM used"
1052 " use=%-9lu %6.2f%%\n",
1054 (long)(zone.ztotal - zone.zfreecnt),
1056 (long)(zone.ztotal - zone.zfreecnt) *
1057 zone.zsize / (1024 * 1024),
1058 (unsigned long)zone.znalloc,
1059 (double)(zone.ztotal - zone.zfreecnt) *
1060 100.0 / (double)zone.zmax);
1062 printf("%-10s %9ld %5ldM used"
1065 (long)(zone.ztotal - zone.zfreecnt),
1066 (long)(zone.ztotal - zone.zfreecnt) *
1067 zone.zsize / (1024 * 1024),
1068 (unsigned long)zone.znalloc);
1070 kz = LIST_NEXT(&zone, zlink);
1076 usleep(interval * 1000);
1084 * kread reads something from the kernel, given its nlist index.
1087 kread(int nlx, void *addr, size_t size)
1091 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1092 sym = namelist[nlx].n_name;
1095 errx(1, "symbol %s not defined", sym);
1097 if (kvm_read(kd, namelist[nlx].n_value, addr, size) != (ssize_t)size) {
1098 sym = namelist[nlx].n_name;
1101 errx(1, "%s: %s", sym, kvm_geterr(kd));
1108 fprintf(stderr, "%s%s",
1109 "usage: vmstat [-imsuvz] [-c count] [-M core] "
1110 "[-N system] [-w wait]\n",
1111 " [-n devs] [disks]\n");