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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 static const char copyright[] =
36 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
46 #include <sys/cdefs.h>
47 __FBSDID("$FreeBSD$");
49 #include <sys/param.h>
53 #include <sys/namei.h>
54 #include <sys/malloc.h>
55 #include <sys/signal.h>
56 #include <sys/fcntl.h>
57 #include <sys/ioctl.h>
58 #include <sys/resource.h>
59 #include <sys/sysctl.h>
60 #include <sys/vmmeter.h>
62 #include <vm/vm_param.h>
79 static char da[] = "da";
81 static struct nlist namelist[] = {
96 #define X_EINTRNAMES 7
102 #define X_KMEMSTATS 10
103 { "_kmemstatistics" },
104 #define X_KMEMZONES 11
107 #define X_DEFICIT XXX
122 static struct statinfo cur, last;
123 static int num_devices, maxshowdevs;
124 static long generation;
125 static struct device_selection *dev_select;
126 static int num_selected;
127 static struct devstat_match *matches;
128 static int num_matches = 0;
129 static int num_devices_specified, num_selections;
130 static long select_generation;
131 static char **specified_devices;
132 static devstat_select_mode select_mode;
134 static struct vmmeter sum, osum;
136 static int winlines = 20;
142 #define FORKSTAT 0x01
143 #define INTRSTAT 0x02
146 #define TIMESTAT 0x10
148 #define ZMEMSTAT 0x40
150 static void cpustats(void);
151 static void devstats(void);
152 static void doforkst(void);
153 static void domem(void);
154 static void dointr(void);
155 static void dosum(void);
156 static void dosysctl(const char *);
157 static void dovmstat(unsigned int, int);
158 static void dozmem(void);
159 static void kread(int, void *, size_t);
160 static void kreado(int, void *, size_t, size_t);
161 static char *kgetstr(const char *);
162 static void needhdr(int);
163 static void printhdr(void);
164 static void usage(void);
166 static long pct(long, long);
167 static long getuptime(void);
169 static char **getdrivedata(char **);
172 main(int argc, char *argv[])
175 unsigned int interval;
178 char errbuf[_POSIX2_LINE_MAX];
180 memf = nlistf = NULL;
181 interval = reps = todo = 0;
183 while ((c = getopt(argc, argv, "ac:fiM:mN:n:p:stw:z")) != -1) {
208 maxshowdevs = atoi(optarg);
210 errx(1, "number of devices %d is < 0",
214 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0)
215 errx(1, "%s", devstat_errbuf);
224 errx(EX_USAGE, "sorry, -t is not (re)implemented yet");
228 interval = atoi(optarg);
245 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
247 errx(1, "kvm_openfiles: %s", errbuf);
250 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) {
252 warnx("undefined symbols:");
254 c < (int)(sizeof(namelist)/sizeof(namelist[0]));
256 if (namelist[c].n_type == 0)
257 (void)fprintf(stderr, " %s",
259 (void)fputc('\n', stderr);
261 warnx("kvm_nlist: %s", kvm_geterr(kd));
266 struct winsize winsize;
269 * Make sure that the userland devstat version matches the
270 * kernel devstat version. If not, exit and print a
271 * message informing the user of his mistake.
273 if (devstat_checkversion(NULL) < 0)
274 errx(1, "%s", devstat_errbuf);
277 argv = getdrivedata(argv);
279 (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize);
280 if (winsize.ws_row > 0)
281 winlines = winsize.ws_row;
285 #define BACKWARD_COMPATIBILITY
286 #ifdef BACKWARD_COMPATIBILITY
288 interval = atoi(*argv);
315 dovmstat(interval, reps);
320 mysysctl(const char *name, void *oldp, size_t *oldlenp,
321 void *newp, size_t newlen)
325 error = sysctlbyname(name, oldp, oldlenp, newp, newlen);
326 if (error != 0 && errno != ENOMEM)
327 err(1, "sysctl(%s)", name);
332 getdrivedata(char **argv)
334 if ((num_devices = devstat_getnumdevs(NULL)) < 0)
335 errx(1, "%s", devstat_errbuf);
337 cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
338 last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
339 bzero(cur.dinfo, sizeof(struct devinfo));
340 bzero(last.dinfo, sizeof(struct devinfo));
342 if (devstat_getdevs(NULL, &cur) == -1)
343 errx(1, "%s", devstat_errbuf);
345 num_devices = cur.dinfo->numdevs;
346 generation = cur.dinfo->generation;
348 specified_devices = (char **)malloc(sizeof(char *));
349 for (num_devices_specified = 0; *argv; ++argv) {
352 num_devices_specified++;
353 specified_devices = (char **)realloc(specified_devices,
355 num_devices_specified);
356 specified_devices[num_devices_specified - 1] = *argv;
360 if (nflag == 0 && maxshowdevs < num_devices_specified)
361 maxshowdevs = num_devices_specified;
364 * People are generally only interested in disk statistics when
365 * they're running vmstat. So, that's what we're going to give
366 * them if they don't specify anything by default. We'll also give
367 * them any other random devices in the system so that we get to
368 * maxshowdevs devices, if that many devices exist. If the user
369 * specifies devices on the command line, either through a pattern
370 * match or by naming them explicitly, we will give the user only
373 if ((num_devices_specified == 0) && (num_matches == 0)) {
374 if (devstat_buildmatch(da, &matches, &num_matches) != 0)
375 errx(1, "%s", devstat_errbuf);
377 select_mode = DS_SELECT_ADD;
379 select_mode = DS_SELECT_ONLY;
382 * At this point, selectdevs will almost surely indicate that the
383 * device list has changed, so we don't look for return values of 0
384 * or 1. If we get back -1, though, there is an error.
386 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections,
387 &select_generation, generation, cur.dinfo->devices,
388 num_devices, matches, num_matches, specified_devices,
389 num_devices_specified, select_mode,
390 maxshowdevs, 0) == -1)
391 errx(1, "%s", devstat_errbuf);
399 static struct timeval boottime;
403 if (boottime.tv_sec == 0) {
405 kread(X_BOOTTIME, &boottime, sizeof(boottime));
409 size = sizeof(boottime);
410 mysysctl("kern.boottime", &boottime, &size, NULL, 0);
411 if (size != sizeof(boottime))
412 errx(1, "kern.boottime size mismatch");
416 uptime = now - boottime.tv_sec;
417 if (uptime <= 0 || uptime > 60*60*24*365*10)
418 errx(1, "time makes no sense; namelist must be wrong");
423 fill_vmmeter(struct vmmeter *vmmp)
426 kread(X_SUM, vmmp, sizeof(*vmmp));
428 size_t size = sizeof(unsigned int);
429 #define GET_VM_STATS(cat, name) \
430 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0)
432 GET_VM_STATS(sys, v_swtch);
433 GET_VM_STATS(sys, v_trap);
434 GET_VM_STATS(sys, v_syscall);
435 GET_VM_STATS(sys, v_intr);
436 GET_VM_STATS(sys, v_soft);
439 GET_VM_STATS(vm, v_vm_faults);
440 GET_VM_STATS(vm, v_cow_faults);
441 GET_VM_STATS(vm, v_cow_optim);
442 GET_VM_STATS(vm, v_zfod);
443 GET_VM_STATS(vm, v_ozfod);
444 GET_VM_STATS(vm, v_swapin);
445 GET_VM_STATS(vm, v_swapout);
446 GET_VM_STATS(vm, v_swappgsin);
447 GET_VM_STATS(vm, v_swappgsout);
448 GET_VM_STATS(vm, v_vnodein);
449 GET_VM_STATS(vm, v_vnodeout);
450 GET_VM_STATS(vm, v_vnodepgsin);
451 GET_VM_STATS(vm, v_vnodepgsout);
452 GET_VM_STATS(vm, v_intrans);
453 GET_VM_STATS(vm, v_reactivated);
454 GET_VM_STATS(vm, v_pdwakeups);
455 GET_VM_STATS(vm, v_pdpages);
456 GET_VM_STATS(vm, v_dfree);
457 GET_VM_STATS(vm, v_pfree);
458 GET_VM_STATS(vm, v_tfree);
459 GET_VM_STATS(vm, v_page_size);
460 GET_VM_STATS(vm, v_page_count);
461 GET_VM_STATS(vm, v_free_reserved);
462 GET_VM_STATS(vm, v_free_target);
463 GET_VM_STATS(vm, v_free_min);
464 GET_VM_STATS(vm, v_free_count);
465 GET_VM_STATS(vm, v_wire_count);
466 GET_VM_STATS(vm, v_active_count);
467 GET_VM_STATS(vm, v_inactive_target);
468 GET_VM_STATS(vm, v_inactive_count);
469 GET_VM_STATS(vm, v_cache_count);
470 GET_VM_STATS(vm, v_cache_min);
471 GET_VM_STATS(vm, v_cache_max);
472 GET_VM_STATS(vm, v_pageout_free_min);
473 GET_VM_STATS(vm, v_interrupt_free_min);
474 /*GET_VM_STATS(vm, v_free_severe);*/
475 GET_VM_STATS(vm, v_forks);
476 GET_VM_STATS(vm, v_vforks);
477 GET_VM_STATS(vm, v_rforks);
478 GET_VM_STATS(vm, v_kthreads);
479 GET_VM_STATS(vm, v_forkpages);
480 GET_VM_STATS(vm, v_vforkpages);
481 GET_VM_STATS(vm, v_rforkpages);
482 GET_VM_STATS(vm, v_kthreadpages);
488 fill_vmtotal(struct vmtotal *vmtp)
492 errx(1, "not implemented");
494 size_t size = sizeof(*vmtp);
495 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0);
496 if (size != sizeof(*vmtp))
497 errx(1, "vm.total size mismatch");
501 static int hz, hdrcnt;
504 dovmstat(unsigned int interval, int reps)
506 struct vmtotal total;
507 time_t uptime, halfuptime;
508 struct devinfo *tmp_dinfo;
511 uptime = getuptime();
512 halfuptime = uptime / 2;
513 (void)signal(SIGCONT, needhdr);
516 if (namelist[X_STATHZ].n_type != 0 &&
517 namelist[X_STATHZ].n_value != 0)
518 kread(X_STATHZ, &hz, sizeof(hz));
520 kread(X_HZ, &hz, sizeof(hz));
522 struct clockinfo clockrate;
524 size = sizeof(clockrate);
525 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0);
526 if (size != sizeof(clockrate))
527 errx(1, "clockrate size mismatch");
535 kread(X_CPTIME, cur.cp_time, sizeof(cur.cp_time));
537 size = sizeof(cur.cp_time);
538 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0);
539 if (size != sizeof(cur.cp_time))
540 errx(1, "cp_time size mismatch");
543 tmp_dinfo = last.dinfo;
544 last.dinfo = cur.dinfo;
545 cur.dinfo = tmp_dinfo;
546 last.snap_time = cur.snap_time;
549 * Here what we want to do is refresh our device stats.
550 * getdevs() returns 1 when the device list has changed.
551 * If the device list has changed, we want to go through
552 * the selection process again, in case a device that we
553 * were previously displaying has gone away.
555 switch (devstat_getdevs(NULL, &cur)) {
557 errx(1, "%s", devstat_errbuf);
562 num_devices = cur.dinfo->numdevs;
563 generation = cur.dinfo->generation;
565 retval = devstat_selectdevs(&dev_select, &num_selected,
566 &num_selections, &select_generation,
567 generation, cur.dinfo->devices,
568 num_devices, matches, num_matches,
570 num_devices_specified, select_mode,
574 errx(1, "%s", devstat_errbuf);
588 fill_vmtotal(&total);
589 (void)printf("%2d %1d %1d",
590 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
591 #define vmstat_pgtok(a) ((a) * sum.v_page_size >> 10)
592 #define rate(x) (((x) + halfuptime) / uptime) /* round */
593 (void)printf(" %7ld %6ld ", (long)vmstat_pgtok(total.t_avm),
594 (long)vmstat_pgtok(total.t_free));
595 (void)printf("%4lu ",
596 (unsigned long)rate(sum.v_vm_faults - osum.v_vm_faults));
597 (void)printf("%3lu ",
598 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated));
599 (void)printf("%3lu ",
600 (unsigned long)rate(sum.v_swapin + sum.v_vnodein -
601 (osum.v_swapin + osum.v_vnodein)));
602 (void)printf("%3lu ",
603 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout -
604 (osum.v_swapout + osum.v_vnodeout)));
605 (void)printf("%3lu ",
606 (unsigned long)rate(sum.v_tfree - osum.v_tfree));
607 (void)printf("%3lu ",
608 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages));
610 (void)printf("%4lu %4lu %3lu ",
611 (unsigned long)rate(sum.v_intr - osum.v_intr),
612 (unsigned long)rate(sum.v_syscall - osum.v_syscall),
613 (unsigned long)rate(sum.v_swtch - osum.v_swtch));
616 (void)fflush(stdout);
617 if (reps >= 0 && --reps <= 0)
622 * We round upward to avoid losing low-frequency events
623 * (i.e., >= 1 per interval but < 1 per second).
626 halfuptime = (uptime + 1) / 2;
629 (void)sleep(interval);
638 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs;
639 (void)printf(" procs memory page%*s", 19, "");
641 (void)printf(" disks %*s", num_shown * 4 - 7, "");
642 else if (num_shown == 1)
643 (void)printf("disk");
644 (void)printf(" faults cpu\n");
645 (void)printf(" r b w avm fre flt re pi po fr sr ");
646 for (i = 0; i < num_devices; i++)
647 if ((dev_select[i].selected)
648 && (dev_select[i].selected <= maxshowdevs))
649 (void)printf("%c%c%d ", dev_select[i].device_name[0],
650 dev_select[i].device_name[1],
651 dev_select[i].unit_number);
652 (void)printf(" in sy cs us sy id\n");
653 hdrcnt = winlines - 2;
657 * Force a header to be prepended to the next output.
660 needhdr(int dummy __unused)
670 unsigned int pgintime, rectime;
672 kread(X_REC, &rectime, sizeof(rectime));
673 kread(X_PGIN, &pgintime, sizeof(pgintime));
674 kread(X_SUM, &sum, sizeof(sum));
675 (void)printf("%u reclaims, %u total time (usec)\n",
676 sum.v_pgrec, rectime);
677 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec);
679 (void)printf("%u page ins, %u total time (msec)\n",
680 sum.v_pgin, pgintime / 10);
681 (void)printf("average: %8.1f msec / page in\n",
682 pgintime / (sum.v_pgin * 10.0));
687 pct(long top, long bot)
693 ans = (quad_t)top * 100 / bot;
697 #define PCT(top, bot) pct((long)(top), (long)(bot))
702 struct nchstats lnchstats;
706 (void)printf("%9u cpu context switches\n", sum.v_swtch);
707 (void)printf("%9u device interrupts\n", sum.v_intr);
708 (void)printf("%9u software interrupts\n", sum.v_soft);
709 (void)printf("%9u traps\n", sum.v_trap);
710 (void)printf("%9u system calls\n", sum.v_syscall);
711 (void)printf("%9u kernel threads created\n", sum.v_kthreads);
712 (void)printf("%9u fork() calls\n", sum.v_forks);
713 (void)printf("%9u vfork() calls\n", sum.v_vforks);
714 (void)printf("%9u rfork() calls\n", sum.v_rforks);
715 (void)printf("%9u swap pager pageins\n", sum.v_swapin);
716 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin);
717 (void)printf("%9u swap pager pageouts\n", sum.v_swapout);
718 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout);
719 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein);
720 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin);
721 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout);
722 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout);
723 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups);
724 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages);
725 (void)printf("%9u pages reactivated\n", sum.v_reactivated);
726 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
727 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim);
728 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod);
729 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod);
730 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
731 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
732 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages);
733 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages);
734 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages);
735 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages);
736 (void)printf("%9u pages freed\n", sum.v_tfree);
737 (void)printf("%9u pages freed by daemon\n", sum.v_dfree);
738 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
739 (void)printf("%9u pages active\n", sum.v_active_count);
740 (void)printf("%9u pages inactive\n", sum.v_inactive_count);
741 (void)printf("%9u pages in VM cache\n", sum.v_cache_count);
742 (void)printf("%9u pages wired down\n", sum.v_wire_count);
743 (void)printf("%9u pages free\n", sum.v_free_count);
744 (void)printf("%9u bytes per page\n", sum.v_page_size);
746 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats));
748 size_t size = sizeof(lnchstats);
749 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0);
750 if (size != sizeof(lnchstats))
751 errx(1, "vfs.cache.nchstats size mismatch");
753 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits +
754 lnchstats.ncs_badhits + lnchstats.ncs_falsehits +
755 lnchstats.ncs_miss + lnchstats.ncs_long;
756 (void)printf("%9ld total name lookups\n", nchtotal);
758 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n",
759 "", PCT(lnchstats.ncs_goodhits, nchtotal),
760 PCT(lnchstats.ncs_neghits, nchtotal),
761 PCT(lnchstats.ncs_pass2, nchtotal));
762 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "",
763 PCT(lnchstats.ncs_badhits, nchtotal),
764 PCT(lnchstats.ncs_falsehits, nchtotal),
765 PCT(lnchstats.ncs_long, nchtotal));
772 (void)printf("%u forks, %u pages, average %.2f\n",
773 sum.v_forks, sum.v_forkpages,
774 sum.v_forks == 0 ? 0.0 :
775 (double)sum.v_forkpages / sum.v_forks);
776 (void)printf("%u vforks, %u pages, average %.2f\n",
777 sum.v_vforks, sum.v_vforkpages,
778 sum.v_vforks == 0 ? 0.0 :
779 (double)sum.v_vforkpages / sum.v_vforks);
780 (void)printf("%u rforks, %u pages, average %.2f\n",
781 sum.v_rforks, sum.v_rforkpages,
782 sum.v_rforks == 0 ? 0.0 :
783 (double)sum.v_rforkpages / sum.v_rforks);
790 long double transfers_per_second;
791 long double busy_seconds;
794 for (state = 0; state < CPUSTATES; ++state) {
795 tmp = cur.cp_time[state];
796 cur.cp_time[state] -= last.cp_time[state];
797 last.cp_time[state] = tmp;
800 busy_seconds = cur.snap_time - last.snap_time;
802 for (dn = 0; dn < num_devices; dn++) {
805 if ((dev_select[dn].selected == 0)
806 || (dev_select[dn].selected > maxshowdevs))
809 di = dev_select[dn].position;
811 if (devstat_compute_statistics(&cur.dinfo->devices[di],
812 &last.dinfo->devices[di], busy_seconds,
813 DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
815 errx(1, "%s", devstat_errbuf);
817 (void)printf("%3.0Lf ", transfers_per_second);
828 for (state = 0; state < CPUSTATES; ++state)
829 total += cur.cp_time[state];
831 lpct = 100.0 / total;
834 (void)printf("%2.0f ", (cur.cp_time[CP_USER] +
835 cur.cp_time[CP_NICE]) * lpct);
836 (void)printf("%2.0f ", (cur.cp_time[CP_SYS] +
837 cur.cp_time[CP_INTR]) * lpct);
838 (void)printf("%2.0f", cur.cp_time[CP_IDLE] * lpct);
844 unsigned long *intrcnt, uptime;
846 size_t clen, inamlen, intrcntlen, istrnamlen;
847 unsigned int i, nintr;
848 char *intrname, *tintrname;
850 uptime = getuptime();
852 intrcntlen = namelist[X_EINTRCNT].n_value -
853 namelist[X_INTRCNT].n_value;
854 inamlen = namelist[X_EINTRNAMES].n_value -
855 namelist[X_INTRNAMES].n_value;
856 if ((intrcnt = malloc(intrcntlen)) == NULL ||
857 (intrname = malloc(inamlen)) == NULL)
859 kread(X_INTRCNT, intrcnt, intrcntlen);
860 kread(X_INTRNAMES, intrname, inamlen);
862 for (intrcnt = NULL, intrcntlen = 1024; ; intrcntlen *= 2) {
863 if ((intrcnt = reallocf(intrcnt, intrcntlen)) == NULL)
864 err(1, "reallocf()");
865 if (mysysctl("hw.intrcnt",
866 intrcnt, &intrcntlen, NULL, 0) == 0)
869 for (intrname = NULL, inamlen = 1024; ; inamlen *= 2) {
870 if ((intrname = reallocf(intrname, inamlen)) == NULL)
871 err(1, "reallocf()");
872 if (mysysctl("hw.intrnames",
873 intrname, &inamlen, NULL, 0) == 0)
877 nintr = intrcntlen / sizeof(unsigned long);
878 tintrname = intrname;
879 istrnamlen = strlen("interrupt");
880 for (i = 0; i < nintr; i++) {
881 clen = strlen(tintrname);
882 if (clen > istrnamlen)
884 tintrname += clen + 1;
886 (void)printf("%-*s %20s %10s\n", istrnamlen, "interrupt", "total",
889 for (i = 0; i < nintr; i++) {
890 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag))
891 (void)printf("%-*s %20lu %10lu\n", istrnamlen, intrname,
892 *intrcnt, *intrcnt / uptime);
893 intrname += strlen(intrname) + 1;
894 inttotal += *intrcnt++;
896 (void)printf("%-*s %20llu %10llu\n", istrnamlen, "Total",
897 (long long)inttotal, (long long)(inttotal / uptime));
903 struct malloc_type type;
906 dosysctl("kern.malloc");
909 kread(X_KMEMSTATS, &type.ks_next, sizeof(type.ks_next));
910 (void)printf("\n Type InUse MemUse HighUse Requests"
913 /* XXX this should be exported in sys/malloc.h */
917 /* uma_zone_t */ void *kz_zone;
923 if (kvm_read(kd, (u_long)type.ks_next, &type, sizeof(type)) !=
925 errx(1, "%s: %p: %s", __func__, type.ks_next,
927 if (type.ks_calls == 0)
929 str = kgetstr(type.ks_shortdesc);
930 (void)printf("%13s%6lu%6luK%7luK%9llu",
933 (type.ks_memuse + 1023) / 1024,
934 (type.ks_maxused + 1023) / 1024,
935 (long long unsigned)type.ks_calls);
937 for (kmemzonenum = 0, first = 1; ; kmemzonenum++) {
938 kreado(X_KMEMZONES, &kz, sizeof(kz),
939 kmemzonenum * sizeof(kz));
940 if (kz.kz_name == NULL) {
944 if (!(type.ks_size & (1 << kmemzonenum)))
951 str = kgetstr(kz.kz_name);
952 (void)printf("%s", str);
955 } while (type.ks_next != NULL);
962 errx(1, "not implemented");
967 dosysctl(const char *name)
972 for (buf = NULL, bufsize = 1024; ; bufsize *= 2) {
973 if ((buf = realloc(buf, bufsize)) == NULL)
975 bufsize--; /* Leave space for the kern.malloc fixup. */
976 if (mysysctl(name, buf, &bufsize, NULL, 0) == 0)
979 buf[bufsize] = '\0'; /* Fix up kern.malloc not returning a string. */
980 (void)printf("%s", buf);
985 * kread reads something from the kernel, given its nlist index.
988 kreado(int nlx, void *addr, size_t size, size_t offset)
992 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
993 sym = namelist[nlx].n_name;
996 errx(1, "symbol %s not defined", sym);
998 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr,
1000 sym = namelist[nlx].n_name;
1003 errx(1, "%s: %s", sym, kvm_geterr(kd));
1008 kread(int nlx, void *addr, size_t size)
1010 kreado(nlx, addr, size, 0);
1014 kgetstr(const char *strp)
1016 int n = 0, size = 1;
1020 if (size == n + 1) {
1021 ret = realloc(ret, size);
1023 err(1, "%s: realloc", __func__);
1026 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1)
1027 errx(1, "%s: %s", __func__, kvm_geterr(kd));
1028 } while (ret[n++] != '\0');
1035 (void)fprintf(stderr, "%s%s",
1036 "usage: vmstat [-aimsz] [-c count] [-M core [-N system]] [-w wait]\n",
1037 " [-n devs] [disks]\n");