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>
63 #include <vm/vm_param.h>
82 static char da[] = "da";
84 static struct nlist namelist[] = {
95 #define X_EINTRNAMES 5
102 #define X_DEFICIT XXX
117 static struct statinfo cur, last;
118 static int num_devices, maxshowdevs;
119 static long generation;
120 static struct device_selection *dev_select;
121 static int num_selected;
122 static struct devstat_match *matches;
123 static int num_matches = 0;
124 static int num_devices_specified, num_selections;
125 static long select_generation;
126 static char **specified_devices;
127 static devstat_select_mode select_mode;
129 static struct vmmeter sum, osum;
131 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */
132 volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */
133 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */
142 #define FORKSTAT 0x01
143 #define INTRSTAT 0x02
146 #define TIMESTAT 0x10
148 #define ZMEMSTAT 0x40
150 static void cpustats(void);
151 static void pcpustats(int, u_long, int);
152 static void devstats(void);
153 static void doforkst(void);
154 static void dointr(void);
155 static void dosum(void);
156 static void dovmstat(unsigned int, int);
157 static void domemstat_malloc(void);
158 static void domemstat_zone(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 needresize(int);
164 static void doresize(void);
165 static void printhdr(int, u_long);
166 static void usage(void);
168 static long pct(long, long);
169 static long getuptime(void);
171 static char **getdrivedata(char **);
174 main(int argc, char *argv[])
177 unsigned int interval;
180 char errbuf[_POSIX2_LINE_MAX];
182 memf = nlistf = NULL;
183 interval = reps = todo = 0;
186 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:Pp:stw:z")) != -1) {
220 maxshowdevs = atoi(optarg);
222 errx(1, "number of devices %d is < 0",
226 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0)
227 errx(1, "%s", devstat_errbuf);
236 errx(EX_USAGE, "sorry, -t is not (re)implemented yet");
240 interval = atoi(optarg);
257 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
259 errx(1, "kvm_openfiles: %s", errbuf);
262 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) {
264 warnx("undefined symbols:");
266 c < (int)(sizeof(namelist)/sizeof(namelist[0]));
268 if (namelist[c].n_type == 0)
269 (void)fprintf(stderr, " %s",
271 (void)fputc('\n', stderr);
273 warnx("kvm_nlist: %s", kvm_geterr(kd));
277 errx(1, "Cannot use -P with crash dumps");
281 * Make sure that the userland devstat version matches the
282 * kernel devstat version. If not, exit and print a
283 * message informing the user of his mistake.
285 if (devstat_checkversion(NULL) < 0)
286 errx(1, "%s", devstat_errbuf);
289 argv = getdrivedata(argv);
292 #define BACKWARD_COMPATIBILITY
293 #ifdef BACKWARD_COMPATIBILITY
295 interval = atoi(*argv);
322 dovmstat(interval, reps);
327 mysysctl(const char *name, void *oldp, size_t *oldlenp,
328 void *newp, size_t newlen)
332 error = sysctlbyname(name, oldp, oldlenp, newp, newlen);
333 if (error != 0 && errno != ENOMEM)
334 err(1, "sysctl(%s)", name);
339 getdrivedata(char **argv)
341 if ((num_devices = devstat_getnumdevs(NULL)) < 0)
342 errx(1, "%s", devstat_errbuf);
344 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
345 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
347 if (devstat_getdevs(NULL, &cur) == -1)
348 errx(1, "%s", devstat_errbuf);
350 num_devices = cur.dinfo->numdevs;
351 generation = cur.dinfo->generation;
353 specified_devices = (char **)malloc(sizeof(char *));
354 for (num_devices_specified = 0; *argv; ++argv) {
357 num_devices_specified++;
358 specified_devices = (char **)realloc(specified_devices,
360 num_devices_specified);
361 specified_devices[num_devices_specified - 1] = *argv;
365 if (nflag == 0 && maxshowdevs < num_devices_specified)
366 maxshowdevs = num_devices_specified;
369 * People are generally only interested in disk statistics when
370 * they're running vmstat. So, that's what we're going to give
371 * them if they don't specify anything by default. We'll also give
372 * them any other random devices in the system so that we get to
373 * maxshowdevs devices, if that many devices exist. If the user
374 * specifies devices on the command line, either through a pattern
375 * match or by naming them explicitly, we will give the user only
378 if ((num_devices_specified == 0) && (num_matches == 0)) {
379 if (devstat_buildmatch(da, &matches, &num_matches) != 0)
380 errx(1, "%s", devstat_errbuf);
382 select_mode = DS_SELECT_ADD;
384 select_mode = DS_SELECT_ONLY;
387 * At this point, selectdevs will almost surely indicate that the
388 * device list has changed, so we don't look for return values of 0
389 * or 1. If we get back -1, though, there is an error.
391 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections,
392 &select_generation, generation, cur.dinfo->devices,
393 num_devices, matches, num_matches, specified_devices,
394 num_devices_specified, select_mode,
395 maxshowdevs, 0) == -1)
396 errx(1, "%s", devstat_errbuf);
406 (void)clock_gettime(CLOCK_MONOTONIC, &sp);
412 fill_pcpu(struct pcpu ***pcpup, int* maxcpup)
423 maxcpu = kvm_getmaxcpu(kd);
425 errx(1, "kvm_getmaxcpu: %s", kvm_geterr(kd));
427 pcpu = calloc(maxcpu, sizeof(struct pcpu *));
431 for (i = 0; i < maxcpu; i++) {
432 pcpu[i] = kvm_getpcpu(kd, i);
433 if (pcpu[i] == (struct pcpu *)-1)
434 errx(1, "kvm_getpcpu: %s", kvm_geterr(kd));
442 free_pcpu(struct pcpu **pcpu, int maxcpu)
446 for (i = 0; i < maxcpu; i++)
452 fill_vmmeter(struct vmmeter *vmmp)
458 kread(X_SUM, vmmp, sizeof(*vmmp));
459 fill_pcpu(&pcpu, &maxcpu);
460 for (i = 0; i < maxcpu; i++) {
463 #define ADD_FROM_PCPU(i, name) \
464 vmmp->name += pcpu[i]->pc_cnt.name
465 ADD_FROM_PCPU(i, v_swtch);
466 ADD_FROM_PCPU(i, v_trap);
467 ADD_FROM_PCPU(i, v_syscall);
468 ADD_FROM_PCPU(i, v_intr);
469 ADD_FROM_PCPU(i, v_soft);
470 ADD_FROM_PCPU(i, v_vm_faults);
471 ADD_FROM_PCPU(i, v_cow_faults);
472 ADD_FROM_PCPU(i, v_cow_optim);
473 ADD_FROM_PCPU(i, v_zfod);
474 ADD_FROM_PCPU(i, v_ozfod);
475 ADD_FROM_PCPU(i, v_swapin);
476 ADD_FROM_PCPU(i, v_swapout);
477 ADD_FROM_PCPU(i, v_swappgsin);
478 ADD_FROM_PCPU(i, v_swappgsout);
479 ADD_FROM_PCPU(i, v_vnodein);
480 ADD_FROM_PCPU(i, v_vnodeout);
481 ADD_FROM_PCPU(i, v_vnodepgsin);
482 ADD_FROM_PCPU(i, v_vnodepgsout);
483 ADD_FROM_PCPU(i, v_intrans);
484 ADD_FROM_PCPU(i, v_tfree);
485 ADD_FROM_PCPU(i, v_forks);
486 ADD_FROM_PCPU(i, v_vforks);
487 ADD_FROM_PCPU(i, v_rforks);
488 ADD_FROM_PCPU(i, v_kthreads);
489 ADD_FROM_PCPU(i, v_forkpages);
490 ADD_FROM_PCPU(i, v_vforkpages);
491 ADD_FROM_PCPU(i, v_rforkpages);
492 ADD_FROM_PCPU(i, v_kthreadpages);
495 free_pcpu(pcpu, maxcpu);
497 size_t size = sizeof(unsigned int);
498 #define GET_VM_STATS(cat, name) \
499 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0)
501 GET_VM_STATS(sys, v_swtch);
502 GET_VM_STATS(sys, v_trap);
503 GET_VM_STATS(sys, v_syscall);
504 GET_VM_STATS(sys, v_intr);
505 GET_VM_STATS(sys, v_soft);
508 GET_VM_STATS(vm, v_vm_faults);
509 GET_VM_STATS(vm, v_cow_faults);
510 GET_VM_STATS(vm, v_cow_optim);
511 GET_VM_STATS(vm, v_zfod);
512 GET_VM_STATS(vm, v_ozfod);
513 GET_VM_STATS(vm, v_swapin);
514 GET_VM_STATS(vm, v_swapout);
515 GET_VM_STATS(vm, v_swappgsin);
516 GET_VM_STATS(vm, v_swappgsout);
517 GET_VM_STATS(vm, v_vnodein);
518 GET_VM_STATS(vm, v_vnodeout);
519 GET_VM_STATS(vm, v_vnodepgsin);
520 GET_VM_STATS(vm, v_vnodepgsout);
521 GET_VM_STATS(vm, v_intrans);
522 GET_VM_STATS(vm, v_reactivated);
523 GET_VM_STATS(vm, v_pdwakeups);
524 GET_VM_STATS(vm, v_pdpages);
525 GET_VM_STATS(vm, v_tcached);
526 GET_VM_STATS(vm, v_dfree);
527 GET_VM_STATS(vm, v_pfree);
528 GET_VM_STATS(vm, v_tfree);
529 GET_VM_STATS(vm, v_page_size);
530 GET_VM_STATS(vm, v_page_count);
531 GET_VM_STATS(vm, v_free_reserved);
532 GET_VM_STATS(vm, v_free_target);
533 GET_VM_STATS(vm, v_free_min);
534 GET_VM_STATS(vm, v_free_count);
535 GET_VM_STATS(vm, v_wire_count);
536 GET_VM_STATS(vm, v_active_count);
537 GET_VM_STATS(vm, v_inactive_target);
538 GET_VM_STATS(vm, v_inactive_count);
539 GET_VM_STATS(vm, v_cache_count);
540 GET_VM_STATS(vm, v_cache_min);
541 GET_VM_STATS(vm, v_cache_max);
542 GET_VM_STATS(vm, v_pageout_free_min);
543 GET_VM_STATS(vm, v_interrupt_free_min);
544 /*GET_VM_STATS(vm, v_free_severe);*/
545 GET_VM_STATS(vm, v_forks);
546 GET_VM_STATS(vm, v_vforks);
547 GET_VM_STATS(vm, v_rforks);
548 GET_VM_STATS(vm, v_kthreads);
549 GET_VM_STATS(vm, v_forkpages);
550 GET_VM_STATS(vm, v_vforkpages);
551 GET_VM_STATS(vm, v_rforkpages);
552 GET_VM_STATS(vm, v_kthreadpages);
558 fill_vmtotal(struct vmtotal *vmtp)
562 errx(1, "not implemented");
564 size_t size = sizeof(*vmtp);
565 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0);
566 if (size != sizeof(*vmtp))
567 errx(1, "vm.total size mismatch");
571 /* Determine how many cpu columns, and what index they are in kern.cp_times */
573 getcpuinfo(u_long *maskp, int *maxidp)
585 errx(1, "not implemented");
588 size = sizeof(maxcpu);
589 mysysctl("kern.smp.maxcpus", &maxcpu, &size, NULL, 0);
590 if (size != sizeof(maxcpu))
591 errx(1, "sysctl kern.smp.maxcpus");
592 size = sizeof(long) * maxcpu * CPUSTATES;
593 times = malloc(size);
595 err(1, "malloc %zd bytes", size);
596 mysysctl("kern.cp_times", times, &size, NULL, 0);
597 maxid = (size / CPUSTATES / sizeof(long)) - 1;
598 for (i = 0; i <= maxid; i++) {
600 for (j = 0; empty && j < CPUSTATES; j++) {
601 if (times[i * CPUSTATES + j] != 0)
618 prthuman(u_int64_t val, int size)
623 if (size < 5 || size > 9)
625 flags = HN_B | HN_NOSPACE | HN_DECIMAL;
626 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags);
627 printf("%*s", size, buf);
630 static int hz, hdrcnt;
632 static long *cur_cp_times;
633 static long *last_cp_times;
634 static size_t size_cp_times;
637 dovmstat(unsigned int interval, int reps)
639 struct vmtotal total;
640 time_t uptime, halfuptime;
641 struct devinfo *tmp_dinfo;
646 uptime = getuptime();
647 halfuptime = uptime / 2;
650 * If the user stops the program (control-Z) and then resumes it,
651 * print out the header again.
653 (void)signal(SIGCONT, needhdr);
656 * If our standard output is a tty, then install a SIGWINCH handler
657 * and set wresized so that our first iteration through the main
658 * vmstat loop will peek at the terminal's current rows to find out
659 * how many lines can fit in a screenful of output.
661 if (isatty(fileno(stdout)) != 0) {
663 (void)signal(SIGWINCH, needresize);
666 winlines = VMSTAT_DEFAULT_LINES;
670 if (namelist[X_STATHZ].n_type != 0 &&
671 namelist[X_STATHZ].n_value != 0)
672 kread(X_STATHZ, &hz, sizeof(hz));
674 kread(X_HZ, &hz, sizeof(hz));
676 struct clockinfo clockrate;
678 size = sizeof(clockrate);
679 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0);
680 if (size != sizeof(clockrate))
681 errx(1, "clockrate size mismatch");
686 ncpus = getcpuinfo(&cpumask, &maxid);
687 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES;
688 cur_cp_times = calloc(1, size_cp_times);
689 last_cp_times = calloc(1, size_cp_times);
693 printhdr(ncpus, cpumask);
695 if (kvm_getcptime(kd, cur.cp_time) < 0)
696 errx(1, "kvm_getcptime: %s", kvm_geterr(kd));
698 size = sizeof(cur.cp_time);
699 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0);
700 if (size != sizeof(cur.cp_time))
701 errx(1, "cp_time size mismatch");
704 size = size_cp_times;
705 mysysctl("kern.cp_times", cur_cp_times, &size, NULL, 0);
706 if (size != size_cp_times)
707 errx(1, "cp_times mismatch");
710 tmp_dinfo = last.dinfo;
711 last.dinfo = cur.dinfo;
712 cur.dinfo = tmp_dinfo;
713 last.snap_time = cur.snap_time;
716 * Here what we want to do is refresh our device stats.
717 * getdevs() returns 1 when the device list has changed.
718 * If the device list has changed, we want to go through
719 * the selection process again, in case a device that we
720 * were previously displaying has gone away.
722 switch (devstat_getdevs(NULL, &cur)) {
724 errx(1, "%s", devstat_errbuf);
729 num_devices = cur.dinfo->numdevs;
730 generation = cur.dinfo->generation;
732 retval = devstat_selectdevs(&dev_select, &num_selected,
733 &num_selections, &select_generation,
734 generation, cur.dinfo->devices,
735 num_devices, matches, num_matches,
737 num_devices_specified, select_mode,
741 errx(1, "%s", devstat_errbuf);
744 printhdr(ncpus, cpumask);
755 fill_vmtotal(&total);
756 (void)printf("%2d %1d %1d",
757 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
758 #define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10))
759 #define rate(x) (((x) + halfuptime) / uptime) /* round */
762 prthuman(total.t_avm * (u_int64_t)sum.v_page_size, 7);
764 prthuman(total.t_free * (u_int64_t)sum.v_page_size, 6);
767 printf(" %7d ", vmstat_pgtok(total.t_avm));
768 printf(" %6d ", vmstat_pgtok(total.t_free));
770 (void)printf("%5lu ",
771 (unsigned long)rate(sum.v_vm_faults - osum.v_vm_faults));
772 (void)printf("%3lu ",
773 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated));
774 (void)printf("%3lu ",
775 (unsigned long)rate(sum.v_swapin + sum.v_vnodein -
776 (osum.v_swapin + osum.v_vnodein)));
777 (void)printf("%3lu ",
778 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout -
779 (osum.v_swapout + osum.v_vnodeout)));
780 (void)printf("%5lu ",
781 (unsigned long)rate(sum.v_tfree - osum.v_tfree));
782 (void)printf("%3lu ",
783 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages));
785 (void)printf("%4lu %4lu %4lu",
786 (unsigned long)rate(sum.v_intr - osum.v_intr),
787 (unsigned long)rate(sum.v_syscall - osum.v_syscall),
788 (unsigned long)rate(sum.v_swtch - osum.v_swtch));
790 pcpustats(ncpus, cpumask, maxid);
794 (void)fflush(stdout);
795 if (reps >= 0 && --reps <= 0)
800 * We round upward to avoid losing low-frequency events
801 * (i.e., >= 1 per interval but < 1 per second).
804 halfuptime = (uptime + 1) / 2;
807 (void)sleep(interval);
812 printhdr(int ncpus, u_long cpumask)
816 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs;
817 (void)printf(" procs memory page%*s", 19, "");
819 (void)printf(" disks %*s", num_shown * 4 - 7, "");
820 else if (num_shown == 1)
821 (void)printf("disk");
822 (void)printf(" faults ");
824 for (i = 0; i < ncpus; i++) {
825 if (cpumask & (1ul << i))
826 printf("cpu%-2d ", i);
831 (void)printf(" r b w avm fre flt re pi po fr sr ");
832 for (i = 0; i < num_devices; i++)
833 if ((dev_select[i].selected)
834 && (dev_select[i].selected <= maxshowdevs))
835 (void)printf("%c%c%d ", dev_select[i].device_name[0],
836 dev_select[i].device_name[1],
837 dev_select[i].unit_number);
838 (void)printf(" in sy cs");
840 for (i = 0; i < ncpus; i++)
844 printf(" us sy id\n");
851 * Force a header to be prepended to the next output.
854 needhdr(int dummy __unused)
861 * When the terminal is resized, force an update of the maximum number of rows
862 * printed between each header repetition. Then force a new header to be
863 * prepended to the next output.
866 needresize(int signo)
874 * Update the global `winlines' count of terminal rows.
883 status = ioctl(fileno(stdout), TIOCGWINSZ, &w);
884 if (status == -1 && errno == EINTR)
886 else if (status == -1)
889 winlines = w.ws_row - 3;
891 winlines = VMSTAT_DEFAULT_LINES;
896 * Inhibit doresize() calls until we are rescheduled by SIGWINCH.
905 unsigned int pgintime, rectime;
907 kread(X_REC, &rectime, sizeof(rectime));
908 kread(X_PGIN, &pgintime, sizeof(pgintime));
909 kread(X_SUM, &sum, sizeof(sum));
910 (void)printf("%u reclaims, %u total time (usec)\n",
911 sum.v_pgrec, rectime);
912 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec);
914 (void)printf("%u page ins, %u total time (msec)\n",
915 sum.v_pgin, pgintime / 10);
916 (void)printf("average: %8.1f msec / page in\n",
917 pgintime / (sum.v_pgin * 10.0));
922 pct(long top, long bot)
928 ans = (quad_t)top * 100 / bot;
932 #define PCT(top, bot) pct((long)(top), (long)(bot))
937 struct nchstats lnchstats;
941 (void)printf("%9u cpu context switches\n", sum.v_swtch);
942 (void)printf("%9u device interrupts\n", sum.v_intr);
943 (void)printf("%9u software interrupts\n", sum.v_soft);
944 (void)printf("%9u traps\n", sum.v_trap);
945 (void)printf("%9u system calls\n", sum.v_syscall);
946 (void)printf("%9u kernel threads created\n", sum.v_kthreads);
947 (void)printf("%9u fork() calls\n", sum.v_forks);
948 (void)printf("%9u vfork() calls\n", sum.v_vforks);
949 (void)printf("%9u rfork() calls\n", sum.v_rforks);
950 (void)printf("%9u swap pager pageins\n", sum.v_swapin);
951 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin);
952 (void)printf("%9u swap pager pageouts\n", sum.v_swapout);
953 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout);
954 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein);
955 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin);
956 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout);
957 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout);
958 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups);
959 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages);
960 (void)printf("%9u pages reactivated\n", sum.v_reactivated);
961 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
962 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim);
963 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod);
964 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod);
965 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
966 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
967 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages);
968 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages);
969 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages);
970 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages);
971 (void)printf("%9u pages cached\n", sum.v_tcached);
972 (void)printf("%9u pages freed\n", sum.v_tfree);
973 (void)printf("%9u pages freed by daemon\n", sum.v_dfree);
974 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
975 (void)printf("%9u pages active\n", sum.v_active_count);
976 (void)printf("%9u pages inactive\n", sum.v_inactive_count);
977 (void)printf("%9u pages in VM cache\n", sum.v_cache_count);
978 (void)printf("%9u pages wired down\n", sum.v_wire_count);
979 (void)printf("%9u pages free\n", sum.v_free_count);
980 (void)printf("%9u bytes per page\n", sum.v_page_size);
982 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats));
984 size_t size = sizeof(lnchstats);
985 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0);
986 if (size != sizeof(lnchstats))
987 errx(1, "vfs.cache.nchstats size mismatch");
989 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits +
990 lnchstats.ncs_badhits + lnchstats.ncs_falsehits +
991 lnchstats.ncs_miss + lnchstats.ncs_long;
992 (void)printf("%9ld total name lookups\n", nchtotal);
994 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n",
995 "", PCT(lnchstats.ncs_goodhits, nchtotal),
996 PCT(lnchstats.ncs_neghits, nchtotal),
997 PCT(lnchstats.ncs_pass2, nchtotal));
998 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "",
999 PCT(lnchstats.ncs_badhits, nchtotal),
1000 PCT(lnchstats.ncs_falsehits, nchtotal),
1001 PCT(lnchstats.ncs_long, nchtotal));
1008 (void)printf("%u forks, %u pages, average %.2f\n",
1009 sum.v_forks, sum.v_forkpages,
1010 sum.v_forks == 0 ? 0.0 :
1011 (double)sum.v_forkpages / sum.v_forks);
1012 (void)printf("%u vforks, %u pages, average %.2f\n",
1013 sum.v_vforks, sum.v_vforkpages,
1014 sum.v_vforks == 0 ? 0.0 :
1015 (double)sum.v_vforkpages / sum.v_vforks);
1016 (void)printf("%u rforks, %u pages, average %.2f\n",
1017 sum.v_rforks, sum.v_rforkpages,
1018 sum.v_rforks == 0 ? 0.0 :
1019 (double)sum.v_rforkpages / sum.v_rforks);
1026 long double transfers_per_second;
1027 long double busy_seconds;
1030 for (state = 0; state < CPUSTATES; ++state) {
1031 tmp = cur.cp_time[state];
1032 cur.cp_time[state] -= last.cp_time[state];
1033 last.cp_time[state] = tmp;
1036 busy_seconds = cur.snap_time - last.snap_time;
1038 for (dn = 0; dn < num_devices; dn++) {
1041 if ((dev_select[dn].selected == 0)
1042 || (dev_select[dn].selected > maxshowdevs))
1045 di = dev_select[dn].position;
1047 if (devstat_compute_statistics(&cur.dinfo->devices[di],
1048 &last.dinfo->devices[di], busy_seconds,
1049 DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
1051 errx(1, "%s", devstat_errbuf);
1053 (void)printf("%3.0Lf ", transfers_per_second);
1058 percent(double pct, int *over)
1063 l = snprintf(buf, sizeof(buf), "%.0f", pct);
1064 if (l == 1 && *over) {
1080 for (state = 0; state < CPUSTATES; ++state)
1081 total += cur.cp_time[state];
1083 lpct = 100.0 / total;
1088 percent((cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, &over);
1090 percent((cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, &over);
1092 percent(cur.cp_time[CP_IDLE] * lpct, &over);
1096 pcpustats(int ncpus, u_long cpumask, int maxid)
1103 /* devstats does this for cp_time */
1104 for (i = 0; i <= maxid; i++) {
1105 if ((cpumask & (1ul << i)) == 0)
1107 for (state = 0; state < CPUSTATES; ++state) {
1108 tmp = cur_cp_times[i * CPUSTATES + state];
1109 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * CPUSTATES + state];
1110 last_cp_times[i * CPUSTATES + state] = tmp;
1115 for (i = 0; i <= maxid; i++) {
1116 if ((cpumask & (1ul << i)) == 0)
1119 for (state = 0; state < CPUSTATES; ++state)
1120 total += cur_cp_times[i * CPUSTATES + state];
1122 lpct = 100.0 / total;
1126 percent((cur_cp_times[i * CPUSTATES + CP_USER] +
1127 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over);
1129 percent((cur_cp_times[i * CPUSTATES + CP_SYS] +
1130 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over);
1132 percent(cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, &over);
1139 unsigned long *intrcnt, uptime;
1141 size_t clen, inamlen, intrcntlen, istrnamlen;
1142 unsigned int i, nintr;
1143 char *intrname, *tintrname;
1145 uptime = getuptime();
1147 intrcntlen = namelist[X_EINTRCNT].n_value -
1148 namelist[X_INTRCNT].n_value;
1149 inamlen = namelist[X_EINTRNAMES].n_value -
1150 namelist[X_INTRNAMES].n_value;
1151 if ((intrcnt = malloc(intrcntlen)) == NULL ||
1152 (intrname = malloc(inamlen)) == NULL)
1154 kread(X_INTRCNT, intrcnt, intrcntlen);
1155 kread(X_INTRNAMES, intrname, inamlen);
1157 for (intrcnt = NULL, intrcntlen = 1024; ; intrcntlen *= 2) {
1158 if ((intrcnt = reallocf(intrcnt, intrcntlen)) == NULL)
1159 err(1, "reallocf()");
1160 if (mysysctl("hw.intrcnt",
1161 intrcnt, &intrcntlen, NULL, 0) == 0)
1164 for (intrname = NULL, inamlen = 1024; ; inamlen *= 2) {
1165 if ((intrname = reallocf(intrname, inamlen)) == NULL)
1166 err(1, "reallocf()");
1167 if (mysysctl("hw.intrnames",
1168 intrname, &inamlen, NULL, 0) == 0)
1172 nintr = intrcntlen / sizeof(unsigned long);
1173 tintrname = intrname;
1174 istrnamlen = strlen("interrupt");
1175 for (i = 0; i < nintr; i++) {
1176 clen = strlen(tintrname);
1177 if (clen > istrnamlen)
1179 tintrname += clen + 1;
1181 (void)printf("%-*s %20s %10s\n", istrnamlen, "interrupt", "total",
1184 for (i = 0; i < nintr; i++) {
1185 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag))
1186 (void)printf("%-*s %20lu %10lu\n", istrnamlen, intrname,
1187 *intrcnt, *intrcnt / uptime);
1188 intrname += strlen(intrname) + 1;
1189 inttotal += *intrcnt++;
1191 (void)printf("%-*s %20llu %10llu\n", istrnamlen, "Total",
1192 (long long)inttotal, (long long)(inttotal / uptime));
1196 domemstat_malloc(void)
1198 struct memory_type_list *mtlp;
1199 struct memory_type *mtp;
1200 int error, first, i;
1202 mtlp = memstat_mtl_alloc();
1204 warn("memstat_mtl_alloc");
1208 if (memstat_sysctl_malloc(mtlp, 0) < 0) {
1209 warnx("memstat_sysctl_malloc: %s",
1210 memstat_strerror(memstat_mtl_geterror(mtlp)));
1214 if (memstat_kvm_malloc(mtlp, kd) < 0) {
1215 error = memstat_mtl_geterror(mtlp);
1216 if (error == MEMSTAT_ERROR_KVM)
1217 warnx("memstat_kvm_malloc: %s",
1220 warnx("memstat_kvm_malloc: %s",
1221 memstat_strerror(error));
1224 printf("%13s %5s %6s %7s %8s Size(s)\n", "Type", "InUse", "MemUse",
1225 "HighUse", "Requests");
1226 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1227 mtp = memstat_mtl_next(mtp)) {
1228 if (memstat_get_numallocs(mtp) == 0 &&
1229 memstat_get_count(mtp) == 0)
1231 printf("%13s %5lld %5lldK %7s %8lld ",
1232 memstat_get_name(mtp), memstat_get_count(mtp),
1233 ((int64_t)memstat_get_bytes(mtp) + 1023) / 1024, "-",
1234 memstat_get_numallocs(mtp));
1236 for (i = 0; i < 32; i++) {
1237 if (memstat_get_sizemask(mtp) & (1 << i)) {
1240 printf("%d", 1 << (i + 4));
1246 memstat_mtl_free(mtlp);
1250 domemstat_zone(void)
1252 struct memory_type_list *mtlp;
1253 struct memory_type *mtp;
1254 char name[MEMTYPE_MAXNAME + 1];
1257 mtlp = memstat_mtl_alloc();
1259 warn("memstat_mtl_alloc");
1263 if (memstat_sysctl_uma(mtlp, 0) < 0) {
1264 warnx("memstat_sysctl_uma: %s",
1265 memstat_strerror(memstat_mtl_geterror(mtlp)));
1269 if (memstat_kvm_uma(mtlp, kd) < 0) {
1270 error = memstat_mtl_geterror(mtlp);
1271 if (error == MEMSTAT_ERROR_KVM)
1272 warnx("memstat_kvm_uma: %s",
1275 warnx("memstat_kvm_uma: %s",
1276 memstat_strerror(error));
1279 printf("%-20s %8s %8s %8s %8s %8s %8s\n\n", "ITEM", "SIZE",
1280 "LIMIT", "USED", "FREE", "REQUESTS", "FAILURES");
1281 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1282 mtp = memstat_mtl_next(mtp)) {
1283 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME);
1285 printf("%-20s %8llu, %8llu, %8llu, %8llu, %8llu, %8llu\n", name,
1286 memstat_get_size(mtp), memstat_get_countlimit(mtp),
1287 memstat_get_count(mtp), memstat_get_free(mtp),
1288 memstat_get_numallocs(mtp), memstat_get_failures(mtp));
1290 memstat_mtl_free(mtlp);
1295 * kread reads something from the kernel, given its nlist index.
1298 kreado(int nlx, void *addr, size_t size, size_t offset)
1302 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1303 sym = namelist[nlx].n_name;
1306 errx(1, "symbol %s not defined", sym);
1308 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr,
1310 sym = namelist[nlx].n_name;
1313 errx(1, "%s: %s", sym, kvm_geterr(kd));
1318 kread(int nlx, void *addr, size_t size)
1320 kreado(nlx, addr, size, 0);
1324 kgetstr(const char *strp)
1326 int n = 0, size = 1;
1330 if (size == n + 1) {
1331 ret = realloc(ret, size);
1333 err(1, "%s: realloc", __func__);
1336 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1)
1337 errx(1, "%s: %s", __func__, kvm_geterr(kd));
1338 } while (ret[n++] != '\0');
1345 (void)fprintf(stderr, "%s%s",
1346 "usage: vmstat [-afHhimPsz] [-c count] [-M core [-N system]] [-w wait]\n",
1347 " [-n devs] [-p type,if,pass] [disks]\n");