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[] = {
97 #define X_EINTRNAMES 6
103 #define X_KMEMSTATS 9
104 { "_kmemstatistics" },
105 #define X_KMEMZONES 10
108 #define X_DEFICIT XXX
123 static struct statinfo cur, last;
124 static int num_devices, maxshowdevs;
125 static long generation;
126 static struct device_selection *dev_select;
127 static int num_selected;
128 static struct devstat_match *matches;
129 static int num_matches = 0;
130 static int num_devices_specified, num_selections;
131 static long select_generation;
132 static char **specified_devices;
133 static devstat_select_mode select_mode;
135 static struct vmmeter sum, osum;
137 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */
138 volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */
139 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */
148 #define FORKSTAT 0x01
149 #define INTRSTAT 0x02
152 #define TIMESTAT 0x10
154 #define ZMEMSTAT 0x40
156 static void cpustats(void);
157 static void pcpustats(int, u_long, int);
158 static void devstats(void);
159 static void doforkst(void);
160 static void dointr(void);
161 static void dosum(void);
162 static void dovmstat(unsigned int, int);
163 static void domemstat_malloc(void);
164 static void domemstat_zone(void);
165 static void kread(int, void *, size_t);
166 static void kreado(int, void *, size_t, size_t);
167 static char *kgetstr(const char *);
168 static void needhdr(int);
169 static void needresize(int);
170 static void doresize(void);
171 static void printhdr(int, u_long);
172 static void usage(void);
174 static long pct(long, long);
175 static long getuptime(void);
177 static char **getdrivedata(char **);
180 main(int argc, char *argv[])
183 unsigned int interval;
186 char errbuf[_POSIX2_LINE_MAX];
188 memf = nlistf = NULL;
189 interval = reps = todo = 0;
192 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:Pp:stw:z")) != -1) {
226 maxshowdevs = atoi(optarg);
228 errx(1, "number of devices %d is < 0",
232 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0)
233 errx(1, "%s", devstat_errbuf);
242 errx(EX_USAGE, "sorry, -t is not (re)implemented yet");
246 interval = atoi(optarg);
263 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
265 errx(1, "kvm_openfiles: %s", errbuf);
268 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) {
270 warnx("undefined symbols:");
272 c < (int)(sizeof(namelist)/sizeof(namelist[0]));
274 if (namelist[c].n_type == 0)
275 (void)fprintf(stderr, " %s",
277 (void)fputc('\n', stderr);
279 warnx("kvm_nlist: %s", kvm_geterr(kd));
283 errx(1, "Cannot use -P with crash dumps");
287 * Make sure that the userland devstat version matches the
288 * kernel devstat version. If not, exit and print a
289 * message informing the user of his mistake.
291 if (devstat_checkversion(NULL) < 0)
292 errx(1, "%s", devstat_errbuf);
295 argv = getdrivedata(argv);
298 #define BACKWARD_COMPATIBILITY
299 #ifdef BACKWARD_COMPATIBILITY
301 interval = atoi(*argv);
328 dovmstat(interval, reps);
333 mysysctl(const char *name, void *oldp, size_t *oldlenp,
334 void *newp, size_t newlen)
338 error = sysctlbyname(name, oldp, oldlenp, newp, newlen);
339 if (error != 0 && errno != ENOMEM)
340 err(1, "sysctl(%s)", name);
345 getdrivedata(char **argv)
347 if ((num_devices = devstat_getnumdevs(NULL)) < 0)
348 errx(1, "%s", devstat_errbuf);
350 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
351 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
353 if (devstat_getdevs(NULL, &cur) == -1)
354 errx(1, "%s", devstat_errbuf);
356 num_devices = cur.dinfo->numdevs;
357 generation = cur.dinfo->generation;
359 specified_devices = (char **)malloc(sizeof(char *));
360 for (num_devices_specified = 0; *argv; ++argv) {
363 num_devices_specified++;
364 specified_devices = (char **)realloc(specified_devices,
366 num_devices_specified);
367 specified_devices[num_devices_specified - 1] = *argv;
371 if (nflag == 0 && maxshowdevs < num_devices_specified)
372 maxshowdevs = num_devices_specified;
375 * People are generally only interested in disk statistics when
376 * they're running vmstat. So, that's what we're going to give
377 * them if they don't specify anything by default. We'll also give
378 * them any other random devices in the system so that we get to
379 * maxshowdevs devices, if that many devices exist. If the user
380 * specifies devices on the command line, either through a pattern
381 * match or by naming them explicitly, we will give the user only
384 if ((num_devices_specified == 0) && (num_matches == 0)) {
385 if (devstat_buildmatch(da, &matches, &num_matches) != 0)
386 errx(1, "%s", devstat_errbuf);
388 select_mode = DS_SELECT_ADD;
390 select_mode = DS_SELECT_ONLY;
393 * At this point, selectdevs will almost surely indicate that the
394 * device list has changed, so we don't look for return values of 0
395 * or 1. If we get back -1, though, there is an error.
397 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections,
398 &select_generation, generation, cur.dinfo->devices,
399 num_devices, matches, num_matches, specified_devices,
400 num_devices_specified, select_mode,
401 maxshowdevs, 0) == -1)
402 errx(1, "%s", devstat_errbuf);
413 (void)clock_gettime(CLOCK_MONOTONIC, &sp);
415 if (uptime <= 0 || uptime > 60*60*24*365*10)
416 errx(1, "time makes no sense; namelist must be wrong");
422 fill_pcpu(struct pcpu ***pcpup, int* maxcpup)
433 maxcpu = kvm_getmaxcpu(kd);
435 errx(1, "kvm_getmaxcpu: %s", kvm_geterr(kd));
437 pcpu = calloc(maxcpu, sizeof(struct pcpu *));
441 for (i = 0; i < maxcpu; i++) {
442 pcpu[i] = kvm_getpcpu(kd, i);
443 if (pcpu[i] == (struct pcpu *)-1)
444 errx(1, "kvm_getpcpu: %s", kvm_geterr(kd));
452 free_pcpu(struct pcpu **pcpu, int maxcpu)
456 for (i = 0; i < maxcpu; i++)
462 fill_vmmeter(struct vmmeter *vmmp)
468 kread(X_SUM, vmmp, sizeof(*vmmp));
469 fill_pcpu(&pcpu, &maxcpu);
470 for (i = 0; i < maxcpu; i++) {
473 #define ADD_FROM_PCPU(i, name) \
474 vmmp->name += pcpu[i]->pc_cnt.name
475 ADD_FROM_PCPU(i, v_swtch);
476 ADD_FROM_PCPU(i, v_trap);
477 ADD_FROM_PCPU(i, v_syscall);
478 ADD_FROM_PCPU(i, v_intr);
479 ADD_FROM_PCPU(i, v_soft);
480 ADD_FROM_PCPU(i, v_vm_faults);
481 ADD_FROM_PCPU(i, v_cow_faults);
482 ADD_FROM_PCPU(i, v_cow_optim);
483 ADD_FROM_PCPU(i, v_zfod);
484 ADD_FROM_PCPU(i, v_ozfod);
485 ADD_FROM_PCPU(i, v_swapin);
486 ADD_FROM_PCPU(i, v_swapout);
487 ADD_FROM_PCPU(i, v_swappgsin);
488 ADD_FROM_PCPU(i, v_swappgsout);
489 ADD_FROM_PCPU(i, v_vnodein);
490 ADD_FROM_PCPU(i, v_vnodeout);
491 ADD_FROM_PCPU(i, v_vnodepgsin);
492 ADD_FROM_PCPU(i, v_vnodepgsout);
493 ADD_FROM_PCPU(i, v_intrans);
494 ADD_FROM_PCPU(i, v_tfree);
495 ADD_FROM_PCPU(i, v_forks);
496 ADD_FROM_PCPU(i, v_vforks);
497 ADD_FROM_PCPU(i, v_rforks);
498 ADD_FROM_PCPU(i, v_kthreads);
499 ADD_FROM_PCPU(i, v_forkpages);
500 ADD_FROM_PCPU(i, v_vforkpages);
501 ADD_FROM_PCPU(i, v_rforkpages);
502 ADD_FROM_PCPU(i, v_kthreadpages);
505 free_pcpu(pcpu, maxcpu);
507 size_t size = sizeof(unsigned int);
508 #define GET_VM_STATS(cat, name) \
509 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0)
511 GET_VM_STATS(sys, v_swtch);
512 GET_VM_STATS(sys, v_trap);
513 GET_VM_STATS(sys, v_syscall);
514 GET_VM_STATS(sys, v_intr);
515 GET_VM_STATS(sys, v_soft);
518 GET_VM_STATS(vm, v_vm_faults);
519 GET_VM_STATS(vm, v_cow_faults);
520 GET_VM_STATS(vm, v_cow_optim);
521 GET_VM_STATS(vm, v_zfod);
522 GET_VM_STATS(vm, v_ozfod);
523 GET_VM_STATS(vm, v_swapin);
524 GET_VM_STATS(vm, v_swapout);
525 GET_VM_STATS(vm, v_swappgsin);
526 GET_VM_STATS(vm, v_swappgsout);
527 GET_VM_STATS(vm, v_vnodein);
528 GET_VM_STATS(vm, v_vnodeout);
529 GET_VM_STATS(vm, v_vnodepgsin);
530 GET_VM_STATS(vm, v_vnodepgsout);
531 GET_VM_STATS(vm, v_intrans);
532 GET_VM_STATS(vm, v_reactivated);
533 GET_VM_STATS(vm, v_pdwakeups);
534 GET_VM_STATS(vm, v_pdpages);
535 GET_VM_STATS(vm, v_tcached);
536 GET_VM_STATS(vm, v_dfree);
537 GET_VM_STATS(vm, v_pfree);
538 GET_VM_STATS(vm, v_tfree);
539 GET_VM_STATS(vm, v_page_size);
540 GET_VM_STATS(vm, v_page_count);
541 GET_VM_STATS(vm, v_free_reserved);
542 GET_VM_STATS(vm, v_free_target);
543 GET_VM_STATS(vm, v_free_min);
544 GET_VM_STATS(vm, v_free_count);
545 GET_VM_STATS(vm, v_wire_count);
546 GET_VM_STATS(vm, v_active_count);
547 GET_VM_STATS(vm, v_inactive_target);
548 GET_VM_STATS(vm, v_inactive_count);
549 GET_VM_STATS(vm, v_cache_count);
550 GET_VM_STATS(vm, v_cache_min);
551 GET_VM_STATS(vm, v_cache_max);
552 GET_VM_STATS(vm, v_pageout_free_min);
553 GET_VM_STATS(vm, v_interrupt_free_min);
554 /*GET_VM_STATS(vm, v_free_severe);*/
555 GET_VM_STATS(vm, v_forks);
556 GET_VM_STATS(vm, v_vforks);
557 GET_VM_STATS(vm, v_rforks);
558 GET_VM_STATS(vm, v_kthreads);
559 GET_VM_STATS(vm, v_forkpages);
560 GET_VM_STATS(vm, v_vforkpages);
561 GET_VM_STATS(vm, v_rforkpages);
562 GET_VM_STATS(vm, v_kthreadpages);
568 fill_vmtotal(struct vmtotal *vmtp)
572 errx(1, "not implemented");
574 size_t size = sizeof(*vmtp);
575 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0);
576 if (size != sizeof(*vmtp))
577 errx(1, "vm.total size mismatch");
581 /* Determine how many cpu columns, and what index they are in kern.cp_times */
583 getcpuinfo(u_long *maskp, int *maxidp)
595 errx(1, "not implemented");
598 size = sizeof(maxcpu);
599 mysysctl("kern.smp.maxcpus", &maxcpu, &size, NULL, 0);
600 if (size != sizeof(maxcpu))
601 errx(1, "sysctl kern.smp.maxcpus");
602 size = sizeof(long) * maxcpu * CPUSTATES;
603 times = malloc(size);
605 err(1, "malloc %zd bytes", size);
606 mysysctl("kern.cp_times", times, &size, NULL, 0);
607 maxid = (size / CPUSTATES / sizeof(long)) - 1;
608 for (i = 0; i <= maxid; i++) {
610 for (j = 0; empty && j < CPUSTATES; j++) {
611 if (times[i * CPUSTATES + j] != 0)
628 prthuman(u_int64_t val, int size)
633 if (size < 5 || size > 9)
635 flags = HN_B | HN_NOSPACE | HN_DECIMAL;
636 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags);
637 printf("%*s", size, buf);
640 static int hz, hdrcnt;
642 static long *cur_cp_times;
643 static long *last_cp_times;
644 static size_t size_cp_times;
647 dovmstat(unsigned int interval, int reps)
649 struct vmtotal total;
650 time_t uptime, halfuptime;
651 struct devinfo *tmp_dinfo;
656 uptime = getuptime();
657 halfuptime = uptime / 2;
660 * If the user stops the program (control-Z) and then resumes it,
661 * print out the header again.
663 (void)signal(SIGCONT, needhdr);
666 * If our standard output is a tty, then install a SIGWINCH handler
667 * and set wresized so that our first iteration through the main
668 * vmstat loop will peek at the terminal's current rows to find out
669 * how many lines can fit in a screenful of output.
671 if (isatty(fileno(stdout)) != 0) {
673 (void)signal(SIGWINCH, needresize);
676 winlines = VMSTAT_DEFAULT_LINES;
680 if (namelist[X_STATHZ].n_type != 0 &&
681 namelist[X_STATHZ].n_value != 0)
682 kread(X_STATHZ, &hz, sizeof(hz));
684 kread(X_HZ, &hz, sizeof(hz));
686 struct clockinfo clockrate;
688 size = sizeof(clockrate);
689 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0);
690 if (size != sizeof(clockrate))
691 errx(1, "clockrate size mismatch");
696 ncpus = getcpuinfo(&cpumask, &maxid);
697 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES;
698 cur_cp_times = calloc(1, size_cp_times);
699 last_cp_times = calloc(1, size_cp_times);
703 printhdr(ncpus, cpumask);
705 if (kvm_getcptime(kd, cur.cp_time) < 0)
706 errx(1, "kvm_getcptime: %s", kvm_geterr(kd));
708 size = sizeof(cur.cp_time);
709 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0);
710 if (size != sizeof(cur.cp_time))
711 errx(1, "cp_time size mismatch");
714 size = size_cp_times;
715 mysysctl("kern.cp_times", cur_cp_times, &size, NULL, 0);
716 if (size != size_cp_times)
717 errx(1, "cp_times mismatch");
720 tmp_dinfo = last.dinfo;
721 last.dinfo = cur.dinfo;
722 cur.dinfo = tmp_dinfo;
723 last.snap_time = cur.snap_time;
726 * Here what we want to do is refresh our device stats.
727 * getdevs() returns 1 when the device list has changed.
728 * If the device list has changed, we want to go through
729 * the selection process again, in case a device that we
730 * were previously displaying has gone away.
732 switch (devstat_getdevs(NULL, &cur)) {
734 errx(1, "%s", devstat_errbuf);
739 num_devices = cur.dinfo->numdevs;
740 generation = cur.dinfo->generation;
742 retval = devstat_selectdevs(&dev_select, &num_selected,
743 &num_selections, &select_generation,
744 generation, cur.dinfo->devices,
745 num_devices, matches, num_matches,
747 num_devices_specified, select_mode,
751 errx(1, "%s", devstat_errbuf);
754 printhdr(ncpus, cpumask);
765 fill_vmtotal(&total);
766 (void)printf("%2d %1d %1d",
767 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
768 #define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10))
769 #define rate(x) (((x) + halfuptime) / uptime) /* round */
772 prthuman(total.t_avm * (u_int64_t)sum.v_page_size, 7);
774 prthuman(total.t_free * (u_int64_t)sum.v_page_size, 6);
777 printf(" %7d ", vmstat_pgtok(total.t_avm));
778 printf(" %6d ", vmstat_pgtok(total.t_free));
780 (void)printf("%5lu ",
781 (unsigned long)rate(sum.v_vm_faults - osum.v_vm_faults));
782 (void)printf("%3lu ",
783 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated));
784 (void)printf("%3lu ",
785 (unsigned long)rate(sum.v_swapin + sum.v_vnodein -
786 (osum.v_swapin + osum.v_vnodein)));
787 (void)printf("%3lu ",
788 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout -
789 (osum.v_swapout + osum.v_vnodeout)));
790 (void)printf("%5lu ",
791 (unsigned long)rate(sum.v_tfree - osum.v_tfree));
792 (void)printf("%3lu ",
793 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages));
795 (void)printf("%4lu %4lu %4lu",
796 (unsigned long)rate(sum.v_intr - osum.v_intr),
797 (unsigned long)rate(sum.v_syscall - osum.v_syscall),
798 (unsigned long)rate(sum.v_swtch - osum.v_swtch));
800 pcpustats(ncpus, cpumask, maxid);
804 (void)fflush(stdout);
805 if (reps >= 0 && --reps <= 0)
810 * We round upward to avoid losing low-frequency events
811 * (i.e., >= 1 per interval but < 1 per second).
814 halfuptime = (uptime + 1) / 2;
817 (void)sleep(interval);
822 printhdr(int ncpus, u_long cpumask)
826 num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs;
827 (void)printf(" procs memory page%*s", 19, "");
829 (void)printf(" disks %*s", num_shown * 4 - 7, "");
830 else if (num_shown == 1)
831 (void)printf("disk");
832 (void)printf(" faults ");
834 for (i = 0; i < ncpus; i++) {
835 if (cpumask & (1ul << i))
836 printf("cpu%-2d ", i);
841 (void)printf(" r b w avm fre flt re pi po fr sr ");
842 for (i = 0; i < num_devices; i++)
843 if ((dev_select[i].selected)
844 && (dev_select[i].selected <= maxshowdevs))
845 (void)printf("%c%c%d ", dev_select[i].device_name[0],
846 dev_select[i].device_name[1],
847 dev_select[i].unit_number);
848 (void)printf(" in sy cs");
850 for (i = 0; i < ncpus; i++)
854 printf(" us sy id\n");
861 * Force a header to be prepended to the next output.
864 needhdr(int dummy __unused)
871 * When the terminal is resized, force an update of the maximum number of rows
872 * printed between each header repetition. Then force a new header to be
873 * prepended to the next output.
876 needresize(int signo)
884 * Update the global `winlines' count of terminal rows.
893 status = ioctl(fileno(stdout), TIOCGWINSZ, &w);
894 if (status == -1 && errno == EINTR)
896 else if (status == -1)
899 winlines = w.ws_row - 3;
901 winlines = VMSTAT_DEFAULT_LINES;
906 * Inhibit doresize() calls until we are rescheduled by SIGWINCH.
915 unsigned int pgintime, rectime;
917 kread(X_REC, &rectime, sizeof(rectime));
918 kread(X_PGIN, &pgintime, sizeof(pgintime));
919 kread(X_SUM, &sum, sizeof(sum));
920 (void)printf("%u reclaims, %u total time (usec)\n",
921 sum.v_pgrec, rectime);
922 (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec);
924 (void)printf("%u page ins, %u total time (msec)\n",
925 sum.v_pgin, pgintime / 10);
926 (void)printf("average: %8.1f msec / page in\n",
927 pgintime / (sum.v_pgin * 10.0));
932 pct(long top, long bot)
938 ans = (quad_t)top * 100 / bot;
942 #define PCT(top, bot) pct((long)(top), (long)(bot))
947 struct nchstats lnchstats;
951 (void)printf("%9u cpu context switches\n", sum.v_swtch);
952 (void)printf("%9u device interrupts\n", sum.v_intr);
953 (void)printf("%9u software interrupts\n", sum.v_soft);
954 (void)printf("%9u traps\n", sum.v_trap);
955 (void)printf("%9u system calls\n", sum.v_syscall);
956 (void)printf("%9u kernel threads created\n", sum.v_kthreads);
957 (void)printf("%9u fork() calls\n", sum.v_forks);
958 (void)printf("%9u vfork() calls\n", sum.v_vforks);
959 (void)printf("%9u rfork() calls\n", sum.v_rforks);
960 (void)printf("%9u swap pager pageins\n", sum.v_swapin);
961 (void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin);
962 (void)printf("%9u swap pager pageouts\n", sum.v_swapout);
963 (void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout);
964 (void)printf("%9u vnode pager pageins\n", sum.v_vnodein);
965 (void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin);
966 (void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout);
967 (void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout);
968 (void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups);
969 (void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages);
970 (void)printf("%9u pages reactivated\n", sum.v_reactivated);
971 (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
972 (void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim);
973 (void)printf("%9u zero fill pages zeroed\n", sum.v_zfod);
974 (void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod);
975 (void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
976 (void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
977 (void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages);
978 (void)printf("%9u pages affected by fork()\n", sum.v_forkpages);
979 (void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages);
980 (void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages);
981 (void)printf("%9u pages cached\n", sum.v_tcached);
982 (void)printf("%9u pages freed\n", sum.v_tfree);
983 (void)printf("%9u pages freed by daemon\n", sum.v_dfree);
984 (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
985 (void)printf("%9u pages active\n", sum.v_active_count);
986 (void)printf("%9u pages inactive\n", sum.v_inactive_count);
987 (void)printf("%9u pages in VM cache\n", sum.v_cache_count);
988 (void)printf("%9u pages wired down\n", sum.v_wire_count);
989 (void)printf("%9u pages free\n", sum.v_free_count);
990 (void)printf("%9u bytes per page\n", sum.v_page_size);
992 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats));
994 size_t size = sizeof(lnchstats);
995 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0);
996 if (size != sizeof(lnchstats))
997 errx(1, "vfs.cache.nchstats size mismatch");
999 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits +
1000 lnchstats.ncs_badhits + lnchstats.ncs_falsehits +
1001 lnchstats.ncs_miss + lnchstats.ncs_long;
1002 (void)printf("%9ld total name lookups\n", nchtotal);
1004 "%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n",
1005 "", PCT(lnchstats.ncs_goodhits, nchtotal),
1006 PCT(lnchstats.ncs_neghits, nchtotal),
1007 PCT(lnchstats.ncs_pass2, nchtotal));
1008 (void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "",
1009 PCT(lnchstats.ncs_badhits, nchtotal),
1010 PCT(lnchstats.ncs_falsehits, nchtotal),
1011 PCT(lnchstats.ncs_long, nchtotal));
1018 (void)printf("%u forks, %u pages, average %.2f\n",
1019 sum.v_forks, sum.v_forkpages,
1020 sum.v_forks == 0 ? 0.0 :
1021 (double)sum.v_forkpages / sum.v_forks);
1022 (void)printf("%u vforks, %u pages, average %.2f\n",
1023 sum.v_vforks, sum.v_vforkpages,
1024 sum.v_vforks == 0 ? 0.0 :
1025 (double)sum.v_vforkpages / sum.v_vforks);
1026 (void)printf("%u rforks, %u pages, average %.2f\n",
1027 sum.v_rforks, sum.v_rforkpages,
1028 sum.v_rforks == 0 ? 0.0 :
1029 (double)sum.v_rforkpages / sum.v_rforks);
1036 long double transfers_per_second;
1037 long double busy_seconds;
1040 for (state = 0; state < CPUSTATES; ++state) {
1041 tmp = cur.cp_time[state];
1042 cur.cp_time[state] -= last.cp_time[state];
1043 last.cp_time[state] = tmp;
1046 busy_seconds = cur.snap_time - last.snap_time;
1048 for (dn = 0; dn < num_devices; dn++) {
1051 if ((dev_select[dn].selected == 0)
1052 || (dev_select[dn].selected > maxshowdevs))
1055 di = dev_select[dn].position;
1057 if (devstat_compute_statistics(&cur.dinfo->devices[di],
1058 &last.dinfo->devices[di], busy_seconds,
1059 DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
1061 errx(1, "%s", devstat_errbuf);
1063 (void)printf("%3.0Lf ", transfers_per_second);
1068 percent(double pct, int *over)
1073 l = snprintf(buf, sizeof(buf), "%.0f", pct);
1074 if (l == 1 && *over) {
1090 for (state = 0; state < CPUSTATES; ++state)
1091 total += cur.cp_time[state];
1093 lpct = 100.0 / total;
1098 percent((cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, &over);
1100 percent((cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, &over);
1102 percent(cur.cp_time[CP_IDLE] * lpct, &over);
1106 pcpustats(int ncpus, u_long cpumask, int maxid)
1113 /* devstats does this for cp_time */
1114 for (i = 0; i <= maxid; i++) {
1115 if ((cpumask & (1ul << i)) == 0)
1117 for (state = 0; state < CPUSTATES; ++state) {
1118 tmp = cur_cp_times[i * CPUSTATES + state];
1119 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i * CPUSTATES + state];
1120 last_cp_times[i * CPUSTATES + state] = tmp;
1125 for (i = 0; i <= maxid; i++) {
1126 if ((cpumask & (1ul << i)) == 0)
1129 for (state = 0; state < CPUSTATES; ++state)
1130 total += cur_cp_times[i * CPUSTATES + state];
1132 lpct = 100.0 / total;
1136 percent((cur_cp_times[i * CPUSTATES + CP_USER] +
1137 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over);
1139 percent((cur_cp_times[i * CPUSTATES + CP_SYS] +
1140 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over);
1142 percent(cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct, &over);
1149 unsigned long *intrcnt, uptime;
1151 size_t clen, inamlen, intrcntlen, istrnamlen;
1152 unsigned int i, nintr;
1153 char *intrname, *tintrname;
1155 uptime = getuptime();
1157 intrcntlen = namelist[X_EINTRCNT].n_value -
1158 namelist[X_INTRCNT].n_value;
1159 inamlen = namelist[X_EINTRNAMES].n_value -
1160 namelist[X_INTRNAMES].n_value;
1161 if ((intrcnt = malloc(intrcntlen)) == NULL ||
1162 (intrname = malloc(inamlen)) == NULL)
1164 kread(X_INTRCNT, intrcnt, intrcntlen);
1165 kread(X_INTRNAMES, intrname, inamlen);
1167 for (intrcnt = NULL, intrcntlen = 1024; ; intrcntlen *= 2) {
1168 if ((intrcnt = reallocf(intrcnt, intrcntlen)) == NULL)
1169 err(1, "reallocf()");
1170 if (mysysctl("hw.intrcnt",
1171 intrcnt, &intrcntlen, NULL, 0) == 0)
1174 for (intrname = NULL, inamlen = 1024; ; inamlen *= 2) {
1175 if ((intrname = reallocf(intrname, inamlen)) == NULL)
1176 err(1, "reallocf()");
1177 if (mysysctl("hw.intrnames",
1178 intrname, &inamlen, NULL, 0) == 0)
1182 nintr = intrcntlen / sizeof(unsigned long);
1183 tintrname = intrname;
1184 istrnamlen = strlen("interrupt");
1185 for (i = 0; i < nintr; i++) {
1186 clen = strlen(tintrname);
1187 if (clen > istrnamlen)
1189 tintrname += clen + 1;
1191 (void)printf("%-*s %20s %10s\n", istrnamlen, "interrupt", "total",
1194 for (i = 0; i < nintr; i++) {
1195 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag))
1196 (void)printf("%-*s %20lu %10lu\n", istrnamlen, intrname,
1197 *intrcnt, *intrcnt / uptime);
1198 intrname += strlen(intrname) + 1;
1199 inttotal += *intrcnt++;
1201 (void)printf("%-*s %20llu %10llu\n", istrnamlen, "Total",
1202 (long long)inttotal, (long long)(inttotal / uptime));
1206 domemstat_malloc(void)
1208 struct memory_type_list *mtlp;
1209 struct memory_type *mtp;
1210 int error, first, i;
1212 mtlp = memstat_mtl_alloc();
1214 warn("memstat_mtl_alloc");
1218 if (memstat_sysctl_malloc(mtlp, 0) < 0) {
1219 warnx("memstat_sysctl_malloc: %s",
1220 memstat_strerror(memstat_mtl_geterror(mtlp)));
1224 if (memstat_kvm_malloc(mtlp, kd) < 0) {
1225 error = memstat_mtl_geterror(mtlp);
1226 if (error == MEMSTAT_ERROR_KVM)
1227 warnx("memstat_kvm_malloc: %s",
1230 warnx("memstat_kvm_malloc: %s",
1231 memstat_strerror(error));
1234 printf("%13s %5s %6s %7s %8s Size(s)\n", "Type", "InUse", "MemUse",
1235 "HighUse", "Requests");
1236 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1237 mtp = memstat_mtl_next(mtp)) {
1238 if (memstat_get_numallocs(mtp) == 0 &&
1239 memstat_get_count(mtp) == 0)
1241 printf("%13s %5lld %5lldK %7s %8lld ",
1242 memstat_get_name(mtp), memstat_get_count(mtp),
1243 ((int64_t)memstat_get_bytes(mtp) + 1023) / 1024, "-",
1244 memstat_get_numallocs(mtp));
1246 for (i = 0; i < 32; i++) {
1247 if (memstat_get_sizemask(mtp) & (1 << i)) {
1250 printf("%d", 1 << (i + 4));
1256 memstat_mtl_free(mtlp);
1260 domemstat_zone(void)
1262 struct memory_type_list *mtlp;
1263 struct memory_type *mtp;
1264 char name[MEMTYPE_MAXNAME + 1];
1267 mtlp = memstat_mtl_alloc();
1269 warn("memstat_mtl_alloc");
1273 if (memstat_sysctl_uma(mtlp, 0) < 0) {
1274 warnx("memstat_sysctl_uma: %s",
1275 memstat_strerror(memstat_mtl_geterror(mtlp)));
1279 if (memstat_kvm_uma(mtlp, kd) < 0) {
1280 error = memstat_mtl_geterror(mtlp);
1281 if (error == MEMSTAT_ERROR_KVM)
1282 warnx("memstat_kvm_uma: %s",
1285 warnx("memstat_kvm_uma: %s",
1286 memstat_strerror(error));
1289 printf("%-20s %8s %8s %8s %8s %8s %8s\n\n", "ITEM", "SIZE",
1290 "LIMIT", "USED", "FREE", "REQUESTS", "FAILURES");
1291 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1292 mtp = memstat_mtl_next(mtp)) {
1293 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME);
1295 printf("%-20s %8llu, %8llu, %8llu, %8llu, %8llu, %8llu\n", name,
1296 memstat_get_size(mtp), memstat_get_countlimit(mtp),
1297 memstat_get_count(mtp), memstat_get_free(mtp),
1298 memstat_get_numallocs(mtp), memstat_get_failures(mtp));
1300 memstat_mtl_free(mtlp);
1305 * kread reads something from the kernel, given its nlist index.
1308 kreado(int nlx, void *addr, size_t size, size_t offset)
1312 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1313 sym = namelist[nlx].n_name;
1316 errx(1, "symbol %s not defined", sym);
1318 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr,
1320 sym = namelist[nlx].n_name;
1323 errx(1, "%s: %s", sym, kvm_geterr(kd));
1328 kread(int nlx, void *addr, size_t size)
1330 kreado(nlx, addr, size, 0);
1334 kgetstr(const char *strp)
1336 int n = 0, size = 1;
1340 if (size == n + 1) {
1341 ret = realloc(ret, size);
1343 err(1, "%s: realloc", __func__);
1346 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1)
1347 errx(1, "%s: %s", __func__, kvm_geterr(kd));
1348 } while (ret[n++] != '\0');
1355 (void)fprintf(stderr, "%s%s",
1356 "usage: vmstat [-afHhimPsz] [-c count] [-M core [-N system]] [-w wait]\n",
1357 " [-n devs] [-p type,if,pass] [disks]\n");