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>
81 static char da[] = "da";
83 static struct nlist namelist[] = {
96 #define X_EINTRNAMES 6
102 #define X_KMEMSTATS 9
103 { "_kmemstatistics" },
104 #define X_KMEMZONES 10
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 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */
137 volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */
138 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */
147 #define FORKSTAT 0x01
148 #define INTRSTAT 0x02
151 #define TIMESTAT 0x10
153 #define ZMEMSTAT 0x40
155 static void cpustats(void);
156 static void pcpustats(int, u_long, int);
157 static void devstats(void);
158 static void doforkst(void);
159 static void dointr(void);
160 static void dosum(void);
161 static void dovmstat(unsigned int, int);
162 static void domemstat_malloc(void);
163 static void domemstat_zone(void);
164 static void kread(int, void *, size_t);
165 static void kreado(int, void *, size_t, size_t);
166 static char *kgetstr(const char *);
167 static void needhdr(int);
168 static void needresize(int);
169 static void doresize(void);
170 static void printhdr(int, u_long);
171 static void usage(void);
173 static long pct(long, long);
174 static long getuptime(void);
176 static char **getdrivedata(char **);
179 main(int argc, char *argv[])
182 unsigned int interval;
185 char errbuf[_POSIX2_LINE_MAX];
187 memf = nlistf = NULL;
188 interval = reps = todo = 0;
191 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:Pp:stw:z")) != -1) {
225 maxshowdevs = atoi(optarg);
227 errx(1, "number of devices %d is < 0",
231 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0)
232 errx(1, "%s", devstat_errbuf);
241 errx(EX_USAGE, "sorry, -t is not (re)implemented yet");
245 interval = atoi(optarg);
262 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
264 errx(1, "kvm_openfiles: %s", errbuf);
267 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) {
269 warnx("undefined symbols:");
271 c < (int)(sizeof(namelist)/sizeof(namelist[0]));
273 if (namelist[c].n_type == 0)
274 (void)fprintf(stderr, " %s",
276 (void)fputc('\n', stderr);
278 warnx("kvm_nlist: %s", kvm_geterr(kd));
282 errx(1, "Cannot use -P with crash dumps");
286 * Make sure that the userland devstat version matches the
287 * kernel devstat version. If not, exit and print a
288 * message informing the user of his mistake.
290 if (devstat_checkversion(NULL) < 0)
291 errx(1, "%s", devstat_errbuf);
294 argv = getdrivedata(argv);
297 #define BACKWARD_COMPATIBILITY
298 #ifdef BACKWARD_COMPATIBILITY
300 interval = atoi(*argv);
327 dovmstat(interval, reps);
332 mysysctl(const char *name, void *oldp, size_t *oldlenp,
333 void *newp, size_t newlen)
337 error = sysctlbyname(name, oldp, oldlenp, newp, newlen);
338 if (error != 0 && errno != ENOMEM)
339 err(1, "sysctl(%s)", name);
344 getdrivedata(char **argv)
346 if ((num_devices = devstat_getnumdevs(NULL)) < 0)
347 errx(1, "%s", devstat_errbuf);
349 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
350 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
352 if (devstat_getdevs(NULL, &cur) == -1)
353 errx(1, "%s", devstat_errbuf);
355 num_devices = cur.dinfo->numdevs;
356 generation = cur.dinfo->generation;
358 specified_devices = (char **)malloc(sizeof(char *));
359 for (num_devices_specified = 0; *argv; ++argv) {
362 num_devices_specified++;
363 specified_devices = (char **)realloc(specified_devices,
365 num_devices_specified);
366 specified_devices[num_devices_specified - 1] = *argv;
370 if (nflag == 0 && maxshowdevs < num_devices_specified)
371 maxshowdevs = num_devices_specified;
374 * People are generally only interested in disk statistics when
375 * they're running vmstat. So, that's what we're going to give
376 * them if they don't specify anything by default. We'll also give
377 * them any other random devices in the system so that we get to
378 * maxshowdevs devices, if that many devices exist. If the user
379 * specifies devices on the command line, either through a pattern
380 * match or by naming them explicitly, we will give the user only
383 if ((num_devices_specified == 0) && (num_matches == 0)) {
384 if (devstat_buildmatch(da, &matches, &num_matches) != 0)
385 errx(1, "%s", devstat_errbuf);
387 select_mode = DS_SELECT_ADD;
389 select_mode = DS_SELECT_ONLY;
392 * At this point, selectdevs will almost surely indicate that the
393 * device list has changed, so we don't look for return values of 0
394 * or 1. If we get back -1, though, there is an error.
396 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections,
397 &select_generation, generation, cur.dinfo->devices,
398 num_devices, matches, num_matches, specified_devices,
399 num_devices_specified, select_mode,
400 maxshowdevs, 0) == -1)
401 errx(1, "%s", devstat_errbuf);
412 (void)clock_gettime(CLOCK_MONOTONIC, &sp);
414 if (uptime <= 0 || uptime > 60*60*24*365*10)
415 errx(1, "time makes no sense; namelist must be wrong");
421 fill_vmmeter(struct vmmeter *vmmp)
424 kread(X_SUM, vmmp, sizeof(*vmmp));
426 size_t size = sizeof(unsigned int);
427 #define GET_VM_STATS(cat, name) \
428 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0)
430 GET_VM_STATS(sys, v_swtch);
431 GET_VM_STATS(sys, v_trap);
432 GET_VM_STATS(sys, v_syscall);
433 GET_VM_STATS(sys, v_intr);
434 GET_VM_STATS(sys, v_soft);
437 GET_VM_STATS(vm, v_vm_faults);
438 GET_VM_STATS(vm, v_cow_faults);
439 GET_VM_STATS(vm, v_cow_optim);
440 GET_VM_STATS(vm, v_zfod);
441 GET_VM_STATS(vm, v_ozfod);
442 GET_VM_STATS(vm, v_swapin);
443 GET_VM_STATS(vm, v_swapout);
444 GET_VM_STATS(vm, v_swappgsin);
445 GET_VM_STATS(vm, v_swappgsout);
446 GET_VM_STATS(vm, v_vnodein);
447 GET_VM_STATS(vm, v_vnodeout);
448 GET_VM_STATS(vm, v_vnodepgsin);
449 GET_VM_STATS(vm, v_vnodepgsout);
450 GET_VM_STATS(vm, v_intrans);
451 GET_VM_STATS(vm, v_reactivated);
452 GET_VM_STATS(vm, v_pdwakeups);
453 GET_VM_STATS(vm, v_pdpages);
454 GET_VM_STATS(vm, v_tcached);
455 GET_VM_STATS(vm, v_dfree);
456 GET_VM_STATS(vm, v_pfree);
457 GET_VM_STATS(vm, v_tfree);
458 GET_VM_STATS(vm, v_page_size);
459 GET_VM_STATS(vm, v_page_count);
460 GET_VM_STATS(vm, v_free_reserved);
461 GET_VM_STATS(vm, v_free_target);
462 GET_VM_STATS(vm, v_free_min);
463 GET_VM_STATS(vm, v_free_count);
464 GET_VM_STATS(vm, v_wire_count);
465 GET_VM_STATS(vm, v_active_count);
466 GET_VM_STATS(vm, v_inactive_target);
467 GET_VM_STATS(vm, v_inactive_count);
468 GET_VM_STATS(vm, v_cache_count);
469 GET_VM_STATS(vm, v_cache_min);
470 GET_VM_STATS(vm, v_cache_max);
471 GET_VM_STATS(vm, v_pageout_free_min);
472 GET_VM_STATS(vm, v_interrupt_free_min);
473 /*GET_VM_STATS(vm, v_free_severe);*/
474 GET_VM_STATS(vm, v_forks);
475 GET_VM_STATS(vm, v_vforks);
476 GET_VM_STATS(vm, v_rforks);
477 GET_VM_STATS(vm, v_kthreads);
478 GET_VM_STATS(vm, v_forkpages);
479 GET_VM_STATS(vm, v_vforkpages);
480 GET_VM_STATS(vm, v_rforkpages);
481 GET_VM_STATS(vm, v_kthreadpages);
487 fill_vmtotal(struct vmtotal *vmtp)
491 errx(1, "not implemented");
493 size_t size = sizeof(*vmtp);
494 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0);
495 if (size != sizeof(*vmtp))
496 errx(1, "vm.total size mismatch");
500 /* Determine how many cpu columns, and what index they are in kern.cp_times */
502 getcpuinfo(u_long *maskp, int *maxidp)
514 errx(1, "not implemented");
517 size = sizeof(maxcpu);
518 mysysctl("kern.smp.maxcpus", &maxcpu, &size, NULL, 0);
519 if (size != sizeof(maxcpu))
520 errx(1, "sysctl kern.smp.maxcpus");
521 size = sizeof(long) * maxcpu * CPUSTATES;
522 times = malloc(size);
524 err(1, "malloc %zd bytes", size);
525 mysysctl("kern.cp_times", times, &size, NULL, 0);
526 maxid = (size / CPUSTATES / sizeof(long)) - 1;
527 for (i = 0; i <= maxid; i++) {
529 for (j = 0; empty && j < CPUSTATES; j++) {
530 if (times[i * CPUSTATES + j] != 0)
547 prthuman(u_int64_t val, int size)
552 if (size < 5 || size > 9)
554 flags = HN_B | HN_NOSPACE | HN_DECIMAL;
555 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags);
556 printf("%*s", size, buf);
559 static int hz, hdrcnt;
561 static long *cur_cp_times;
562 static long *last_cp_times;
563 static size_t size_cp_times;
566 dovmstat(unsigned int interval, int reps)
568 struct vmtotal total;
569 time_t uptime, halfuptime;
570 struct devinfo *tmp_dinfo;
575 uptime = getuptime();
576 halfuptime = uptime / 2;
579 * If the user stops the program (control-Z) and then resumes it,
580 * print out the header again.
582 (void)signal(SIGCONT, needhdr);
585 * If our standard output is a tty, then install a SIGWINCH handler
586 * and set wresized so that our first iteration through the main
587 * vmstat loop will peek at the terminal's current rows to find out
588 * how many lines can fit in a screenful of output.
590 if (isatty(fileno(stdout)) != 0) {
592 (void)signal(SIGWINCH, needresize);
595 winlines = VMSTAT_DEFAULT_LINES;
599 if (namelist[X_STATHZ].n_type != 0 &&
600 namelist[X_STATHZ].n_value != 0)
601 kread(X_STATHZ, &hz, sizeof(hz));
603 kread(X_HZ, &hz, sizeof(hz));
605 struct clockinfo clockrate;
607 size = sizeof(clockrate);
608 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0);
609 if (size != sizeof(clockrate))
610 errx(1, "clockrate size mismatch");
615 ncpus = getcpuinfo(&cpumask, &maxid);
616 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES;
617 cur_cp_times = calloc(1, size_cp_times);
618 last_cp_times = calloc(1, size_cp_times);
622 printhdr(ncpus, cpumask);
624 if (kvm_getcptime(kd, cur.cp_time) < 0)
625 errx(1, "kvm_getcptime: %s", kvm_geterr(kd));
627 size = sizeof(cur.cp_time);
628 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0);
629 if (size != sizeof(cur.cp_time))
630 errx(1, "cp_time size mismatch");
633 size = size_cp_times;
634 mysysctl("kern.cp_times", cur_cp_times, &size, NULL, 0);
635 if (size != size_cp_times)
636 errx(1, "cp_times mismatch");
639 tmp_dinfo = last.dinfo;
640 last.dinfo = cur.dinfo;
641 cur.dinfo = tmp_dinfo;
642 last.snap_time = cur.snap_time;
645 * Here what we want to do is refresh our device stats.
646 * getdevs() returns 1 when the device list has changed.
647 * If the device list has changed, we want to go through
648 * the selection process again, in case a device that we
649 * were previously displaying has gone away.
651 switch (devstat_getdevs(NULL, &cur)) {
653 errx(1, "%s", devstat_errbuf);
658 num_devices = cur.dinfo->numdevs;
659 generation = cur.dinfo->generation;
661 retval = devstat_selectdevs(&dev_select, &num_selected,
662 &num_selections, &select_generation,
663 generation, cur.dinfo->devices,
664 num_devices, matches, num_matches,
666 num_devices_specified, select_mode,
670 errx(1, "%s", devstat_errbuf);
673 printhdr(ncpus, cpumask);
684 fill_vmtotal(&total);
685 (void)printf("%2d %1d %1d",
686 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
687 #define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10))
688 #define rate(x) (((x) + halfuptime) / uptime) /* round */
691 prthuman(total.t_avm * (u_int64_t)sum.v_page_size, 7);
693 prthuman(total.t_free * (u_int64_t)sum.v_page_size, 6);
696 printf(" %7d ", vmstat_pgtok(total.t_avm));
697 printf(" %6d ", vmstat_pgtok(total.t_free));
699 (void)printf("%5lu ",
700 (unsigned long)rate(sum.v_vm_faults - osum.v_vm_faults));
701 (void)printf("%3lu ",
702 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated));
703 (void)printf("%3lu ",
704 (unsigned long)rate(sum.v_swapin + sum.v_vnodein -
705 (osum.v_swapin + osum.v_vnodein)));
706 (void)printf("%3lu ",
707 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout -
708 (osum.v_swapout + osum.v_vnodeout)));
709 (void)printf("%5lu ",
710 (unsigned long)rate(sum.v_tfree - osum.v_tfree));
711 (void)printf("%3lu ",
712 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages));
714 (void)printf("%4lu %4lu %4lu",
715 (unsigned long)rate(sum.v_intr - osum.v_intr),
716 (unsigned long)rate(sum.v_syscall - osum.v_syscall),
717 (unsigned long)rate(sum.v_swtch - osum.v_swtch));
719 pcpustats(ncpus, cpumask, maxid);
723 (void)fflush(stdout);
724 if (reps >= 0 && --reps <= 0)
729 * We round upward to avoid losing low-frequency events
730 * (i.e., >= 1 per interval but < 1 per second).
733 halfuptime = (uptime + 1) / 2;
736 (void)sleep(interval);
741 printhdr(int ncpus, u_long cpumask)
745 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs;
746 (void)printf(" procs memory page%*s", 19, "");
748 (void)printf(" disks %*s", num_shown * 4 - 7, "");
749 else if (num_shown == 1)
750 (void)printf("disk");
751 (void)printf(" faults ");
753 for (i = 0; i < ncpus; i++) {
754 if (cpumask & (1ul << i))
755 printf("cpu%-2d ", i);
760 (void)printf(" r b w avm fre flt re pi po fr sr ");
761 for (i = 0; i < num_devices; i++)
762 if ((dev_select[i].selected)
763 && (dev_select[i].selected <= maxshowdevs))
764 (void)printf("%c%c%d ", dev_select[i].device_name[0],
765 dev_select[i].device_name[1],
766 dev_select[i].unit_number);
767 (void)printf(" in sy cs");
769 for (i = 0; i < ncpus; i++)
773 printf(" us sy id\n");
780 * Force a header to be prepended to the next output.
783 needhdr(int dummy __unused)
790 * When the terminal is resized, force an update of the maximum number of rows
791 * printed between each header repetition. Then force a new header to be
792 * prepended to the next output.
795 needresize(int signo)
803 * Update the global `winlines' count of terminal rows.
812 status = ioctl(fileno(stdout), TIOCGWINSZ, &w);
813 if (status == -1 && errno == EINTR)
815 else if (status == -1)
818 winlines = w.ws_row - 3;
820 winlines = VMSTAT_DEFAULT_LINES;
825 * Inhibit doresize() calls until we are rescheduled by SIGWINCH.
834 unsigned int pgintime, rectime;
836 kread(X_REC, &rectime, sizeof(rectime));
837 kread(X_PGIN, &pgintime, sizeof(pgintime));
838 kread(X_SUM, &sum, sizeof(sum));
839 (void)printf("%u reclaims, %u total time (usec)\n",
840 sum.v_pgrec, rectime);
841 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec);
843 (void)printf("%u page ins, %u total time (msec)\n",
844 sum.v_pgin, pgintime / 10);
845 (void)printf("average: %8.1f msec / page in\n",
846 pgintime / (sum.v_pgin * 10.0));
851 pct(long top, long bot)
857 ans = (quad_t)top * 100 / bot;
861 #define PCT(top, bot) pct((long)(top), (long)(bot))
866 struct nchstats lnchstats;
870 (void)printf("%9u cpu context switches\n", sum.v_swtch);
871 (void)printf("%9u device interrupts\n", sum.v_intr);
872 (void)printf("%9u software interrupts\n", sum.v_soft);
873 (void)printf("%9u traps\n", sum.v_trap);
874 (void)printf("%9u system calls\n", sum.v_syscall);
875 (void)printf("%9u kernel threads created\n", sum.v_kthreads);
876 (void)printf("%9u fork() calls\n", sum.v_forks);
877 (void)printf("%9u vfork() calls\n", sum.v_vforks);
878 (void)printf("%9u rfork() calls\n", sum.v_rforks);
879 (void)printf("%9u swap pager pageins\n", sum.v_swapin);
880 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin);
881 (void)printf("%9u swap pager pageouts\n", sum.v_swapout);
882 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout);
883 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein);
884 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin);
885 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout);
886 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout);
887 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups);
888 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages);
889 (void)printf("%9u pages reactivated\n", sum.v_reactivated);
890 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
891 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim);
892 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod);
893 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod);
894 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
895 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
896 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages);
897 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages);
898 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages);
899 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages);
900 (void)printf("%9u pages cached\n", sum.v_tcached);
901 (void)printf("%9u pages freed\n", sum.v_tfree);
902 (void)printf("%9u pages freed by daemon\n", sum.v_dfree);
903 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
904 (void)printf("%9u pages active\n", sum.v_active_count);
905 (void)printf("%9u pages inactive\n", sum.v_inactive_count);
906 (void)printf("%9u pages in VM cache\n", sum.v_cache_count);
907 (void)printf("%9u pages wired down\n", sum.v_wire_count);
908 (void)printf("%9u pages free\n", sum.v_free_count);
909 (void)printf("%9u bytes per page\n", sum.v_page_size);
911 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats));
913 size_t size = sizeof(lnchstats);
914 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0);
915 if (size != sizeof(lnchstats))
916 errx(1, "vfs.cache.nchstats size mismatch");
918 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits +
919 lnchstats.ncs_badhits + lnchstats.ncs_falsehits +
920 lnchstats.ncs_miss + lnchstats.ncs_long;
921 (void)printf("%9ld total name lookups\n", nchtotal);
923 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n",
924 "", PCT(lnchstats.ncs_goodhits, nchtotal),
925 PCT(lnchstats.ncs_neghits, nchtotal),
926 PCT(lnchstats.ncs_pass2, nchtotal));
927 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "",
928 PCT(lnchstats.ncs_badhits, nchtotal),
929 PCT(lnchstats.ncs_falsehits, nchtotal),
930 PCT(lnchstats.ncs_long, nchtotal));
937 (void)printf("%u forks, %u pages, average %.2f\n",
938 sum.v_forks, sum.v_forkpages,
939 sum.v_forks == 0 ? 0.0 :
940 (double)sum.v_forkpages / sum.v_forks);
941 (void)printf("%u vforks, %u pages, average %.2f\n",
942 sum.v_vforks, sum.v_vforkpages,
943 sum.v_vforks == 0 ? 0.0 :
944 (double)sum.v_vforkpages / sum.v_vforks);
945 (void)printf("%u rforks, %u pages, average %.2f\n",
946 sum.v_rforks, sum.v_rforkpages,
947 sum.v_rforks == 0 ? 0.0 :
948 (double)sum.v_rforkpages / sum.v_rforks);
955 long double transfers_per_second;
956 long double busy_seconds;
959 for (state = 0; state < CPUSTATES; ++state) {
960 tmp = cur.cp_time[state];
961 cur.cp_time[state] -= last.cp_time[state];
962 last.cp_time[state] = tmp;
965 busy_seconds = cur.snap_time - last.snap_time;
967 for (dn = 0; dn < num_devices; dn++) {
970 if ((dev_select[dn].selected == 0)
971 || (dev_select[dn].selected > maxshowdevs))
974 di = dev_select[dn].position;
976 if (devstat_compute_statistics(&cur.dinfo->devices[di],
977 &last.dinfo->devices[di], busy_seconds,
978 DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
980 errx(1, "%s", devstat_errbuf);
982 (void)printf("%3.0Lf ", transfers_per_second);
987 percent(double pct, int *over)
992 l = snprintf(buf, sizeof(buf), "%.0f", pct);
993 if (l == 1 && *over) {
1009 for (state = 0; state < CPUSTATES; ++state)
1010 total += cur.cp_time[state];
1012 lpct = 100.0 / total;
1017 percent((cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, &over);
1019 percent((cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, &over);
1021 percent(cur.cp_time[CP_IDLE] * lpct, &over);
1025 pcpustats(int ncpus, u_long cpumask, int maxid)
1032 /* devstats does this for cp_time */
1033 for (i = 0; i <= maxid; i++) {
1034 if ((cpumask & (1ul << i)) == 0)
1036 for (state = 0; state < CPUSTATES; ++state) {
1037 tmp = cur_cp_times[i * CPUSTATES + state];
1038 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * CPUSTATES + state];
1039 last_cp_times[i * CPUSTATES + state] = tmp;
1044 for (i = 0; i <= maxid; i++) {
1045 if ((cpumask & (1ul << i)) == 0)
1048 for (state = 0; state < CPUSTATES; ++state)
1049 total += cur_cp_times[i * CPUSTATES + state];
1051 lpct = 100.0 / total;
1055 percent((cur_cp_times[i * CPUSTATES + CP_USER] +
1056 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over);
1058 percent((cur_cp_times[i * CPUSTATES + CP_SYS] +
1059 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over);
1061 percent(cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, &over);
1068 unsigned long *intrcnt, uptime;
1070 size_t clen, inamlen, intrcntlen, istrnamlen;
1071 unsigned int i, nintr;
1072 char *intrname, *tintrname;
1074 uptime = getuptime();
1076 intrcntlen = namelist[X_EINTRCNT].n_value -
1077 namelist[X_INTRCNT].n_value;
1078 inamlen = namelist[X_EINTRNAMES].n_value -
1079 namelist[X_INTRNAMES].n_value;
1080 if ((intrcnt = malloc(intrcntlen)) == NULL ||
1081 (intrname = malloc(inamlen)) == NULL)
1083 kread(X_INTRCNT, intrcnt, intrcntlen);
1084 kread(X_INTRNAMES, intrname, inamlen);
1086 for (intrcnt = NULL, intrcntlen = 1024; ; intrcntlen *= 2) {
1087 if ((intrcnt = reallocf(intrcnt, intrcntlen)) == NULL)
1088 err(1, "reallocf()");
1089 if (mysysctl("hw.intrcnt",
1090 intrcnt, &intrcntlen, NULL, 0) == 0)
1093 for (intrname = NULL, inamlen = 1024; ; inamlen *= 2) {
1094 if ((intrname = reallocf(intrname, inamlen)) == NULL)
1095 err(1, "reallocf()");
1096 if (mysysctl("hw.intrnames",
1097 intrname, &inamlen, NULL, 0) == 0)
1101 nintr = intrcntlen / sizeof(unsigned long);
1102 tintrname = intrname;
1103 istrnamlen = strlen("interrupt");
1104 for (i = 0; i < nintr; i++) {
1105 clen = strlen(tintrname);
1106 if (clen > istrnamlen)
1108 tintrname += clen + 1;
1110 (void)printf("%-*s %20s %10s\n", istrnamlen, "interrupt", "total",
1113 for (i = 0; i < nintr; i++) {
1114 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag))
1115 (void)printf("%-*s %20lu %10lu\n", istrnamlen, intrname,
1116 *intrcnt, *intrcnt / uptime);
1117 intrname += strlen(intrname) + 1;
1118 inttotal += *intrcnt++;
1120 (void)printf("%-*s %20llu %10llu\n", istrnamlen, "Total",
1121 (long long)inttotal, (long long)(inttotal / uptime));
1125 domemstat_malloc(void)
1127 struct memory_type_list *mtlp;
1128 struct memory_type *mtp;
1129 int error, first, i;
1131 mtlp = memstat_mtl_alloc();
1133 warn("memstat_mtl_alloc");
1137 if (memstat_sysctl_malloc(mtlp, 0) < 0) {
1138 warnx("memstat_sysctl_malloc: %s",
1139 memstat_strerror(memstat_mtl_geterror(mtlp)));
1143 if (memstat_kvm_malloc(mtlp, kd) < 0) {
1144 error = memstat_mtl_geterror(mtlp);
1145 if (error == MEMSTAT_ERROR_KVM)
1146 warnx("memstat_kvm_malloc: %s",
1149 warnx("memstat_kvm_malloc: %s",
1150 memstat_strerror(error));
1153 printf("%13s %5s %6s %7s %8s Size(s)\n", "Type", "InUse", "MemUse",
1154 "HighUse", "Requests");
1155 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1156 mtp = memstat_mtl_next(mtp)) {
1157 if (memstat_get_numallocs(mtp) == 0 &&
1158 memstat_get_count(mtp) == 0)
1160 printf("%13s %5lld %5lldK %7s %8lld ",
1161 memstat_get_name(mtp), memstat_get_count(mtp),
1162 ((int64_t)memstat_get_bytes(mtp) + 1023) / 1024, "-",
1163 memstat_get_numallocs(mtp));
1165 for (i = 0; i < 32; i++) {
1166 if (memstat_get_sizemask(mtp) & (1 << i)) {
1169 printf("%d", 1 << (i + 4));
1175 memstat_mtl_free(mtlp);
1179 domemstat_zone(void)
1181 struct memory_type_list *mtlp;
1182 struct memory_type *mtp;
1183 char name[MEMTYPE_MAXNAME + 1];
1186 mtlp = memstat_mtl_alloc();
1188 warn("memstat_mtl_alloc");
1192 if (memstat_sysctl_uma(mtlp, 0) < 0) {
1193 warnx("memstat_sysctl_uma: %s",
1194 memstat_strerror(memstat_mtl_geterror(mtlp)));
1198 if (memstat_kvm_uma(mtlp, kd) < 0) {
1199 error = memstat_mtl_geterror(mtlp);
1200 if (error == MEMSTAT_ERROR_KVM)
1201 warnx("memstat_kvm_uma: %s",
1204 warnx("memstat_kvm_uma: %s",
1205 memstat_strerror(error));
1208 printf("%-20s %8s %8s %8s %8s %8s %8s\n\n", "ITEM", "SIZE",
1209 "LIMIT", "USED", "FREE", "REQUESTS", "FAILURES");
1210 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1211 mtp = memstat_mtl_next(mtp)) {
1212 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME);
1214 printf("%-20s %8llu, %8llu, %8llu, %8llu, %8llu, %8llu\n", name,
1215 memstat_get_size(mtp), memstat_get_countlimit(mtp),
1216 memstat_get_count(mtp), memstat_get_free(mtp),
1217 memstat_get_numallocs(mtp), memstat_get_failures(mtp));
1219 memstat_mtl_free(mtlp);
1224 * kread reads something from the kernel, given its nlist index.
1227 kreado(int nlx, void *addr, size_t size, size_t offset)
1231 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1232 sym = namelist[nlx].n_name;
1235 errx(1, "symbol %s not defined", sym);
1237 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr,
1239 sym = namelist[nlx].n_name;
1242 errx(1, "%s: %s", sym, kvm_geterr(kd));
1247 kread(int nlx, void *addr, size_t size)
1249 kreado(nlx, addr, size, 0);
1253 kgetstr(const char *strp)
1255 int n = 0, size = 1;
1259 if (size == n + 1) {
1260 ret = realloc(ret, size);
1262 err(1, "%s: realloc", __func__);
1265 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1)
1266 errx(1, "%s: %s", __func__, kvm_geterr(kd));
1267 } while (ret[n++] != '\0');
1274 (void)fprintf(stderr, "%s%s",
1275 "usage: vmstat [-afHhimPsz] [-c count] [-M core [-N system]] [-w wait]\n",
1276 " [-n devs] [-p type,if,pass] [disks]\n");