1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1980, 1986, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #ifndef lint
33 static const char copyright[] =
34 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
35 The Regents of the University of California. All rights reserved.\n";
36 #endif /* not lint */
37
38 #if 0
39 #ifndef lint
40 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
41 #endif /* not lint */
42 #endif
43
44 #include <sys/cdefs.h>
45 #include <sys/param.h>
46 #include <sys/proc.h>
47 #include <sys/uio.h>
48 #include <sys/namei.h>
49 #include <sys/malloc.h>
50 #include <sys/signal.h>
51 #include <sys/fcntl.h>
52 #include <sys/ioctl.h>
53 #include <sys/resource.h>
54 #include <sys/sysctl.h>
55 #include <sys/time.h>
56 #include <sys/user.h>
57 #define _WANT_VMMETER
58 #include <sys/vmmeter.h>
59 #include <sys/pcpu.h>
60
61 #include <vm/vm_param.h>
62
63 #include <ctype.h>
64 #include <devstat.h>
65 #include <err.h>
66 #include <errno.h>
67 #include <inttypes.h>
68 #include <kvm.h>
69 #include <limits.h>
70 #include <memstat.h>
71 #include <nlist.h>
72 #include <paths.h>
73 #include <stdio.h>
74 #include <stdlib.h>
75 #include <string.h>
76 #include <sysexits.h>
77 #include <time.h>
78 #include <unistd.h>
79 #include <libutil.h>
80 #include <libxo/xo.h>
81
82 #define VMSTAT_XO_VERSION "2"
83
84 static char da[] = "da";
85
86 enum x_stats { X_SUM, X_HZ, X_STATHZ, X_NCHSTATS, X_INTRNAMES, X_SINTRNAMES,
87 X_INTRCNT, X_SINTRCNT, X_NINTRCNT };
88
89 static struct nlist namelist[] = {
90 [X_SUM] = { .n_name = "_vm_cnt", },
91 [X_HZ] = { .n_name = "_hz", },
92 [X_STATHZ] = { .n_name = "_stathz", },
93 [X_NCHSTATS] = { .n_name = "_nchstats", },
94 [X_INTRNAMES] = { .n_name = "_intrnames", },
95 [X_SINTRNAMES] = { .n_name = "_sintrnames", },
96 [X_INTRCNT] = { .n_name = "_intrcnt", },
97 [X_SINTRCNT] = { .n_name = "_sintrcnt", },
98 [X_NINTRCNT] = { .n_name = "_nintrcnt", },
99 { .n_name = NULL, },
100 };
101
102 static struct devstat_match *matches;
103 static struct device_selection *dev_select;
104 static struct statinfo cur, last;
105 static devstat_select_mode select_mode;
106 static size_t size_cp_times;
107 static long *cur_cp_times, *last_cp_times;
108 static long generation, select_generation;
109 static int hz, hdrcnt, maxshowdevs;
110 static int num_devices, num_devices_specified;
111 static int num_matches, num_selected, num_selections;
112 static char **specified_devices;
113
114 static struct __vmmeter {
115 uint64_t v_swtch;
116 uint64_t v_trap;
117 uint64_t v_syscall;
118 uint64_t v_intr;
119 uint64_t v_soft;
120 uint64_t v_vm_faults;
121 uint64_t v_io_faults;
122 uint64_t v_cow_faults;
123 uint64_t v_cow_optim;
124 uint64_t v_zfod;
125 uint64_t v_ozfod;
126 uint64_t v_swapin;
127 uint64_t v_swapout;
128 uint64_t v_swappgsin;
129 uint64_t v_swappgsout;
130 uint64_t v_vnodein;
131 uint64_t v_vnodeout;
132 uint64_t v_vnodepgsin;
133 uint64_t v_vnodepgsout;
134 uint64_t v_intrans;
135 uint64_t v_reactivated;
136 uint64_t v_pdwakeups;
137 uint64_t v_pdpages;
138 uint64_t v_pdshortfalls;
139 uint64_t v_dfree;
140 uint64_t v_pfree;
141 uint64_t v_tfree;
142 uint64_t v_forks;
143 uint64_t v_vforks;
144 uint64_t v_rforks;
145 uint64_t v_kthreads;
146 uint64_t v_forkpages;
147 uint64_t v_vforkpages;
148 uint64_t v_rforkpages;
149 uint64_t v_kthreadpages;
150 u_int v_page_size;
151 u_int v_page_count;
152 u_int v_free_reserved;
153 u_int v_free_target;
154 u_int v_free_min;
155 u_int v_free_count;
156 u_int v_wire_count;
157 u_long v_user_wire_count;
158 u_int v_active_count;
159 u_int v_inactive_target;
160 u_int v_inactive_count;
161 u_int v_laundry_count;
162 u_int v_pageout_free_min;
163 u_int v_interrupt_free_min;
164 u_int v_free_severe;
165 } sum, osum;
166
167 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */
168 static volatile sig_atomic_t wresized; /* Tty resized when non-zero. */
169 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */
170
171 static int aflag;
172 static int nflag;
173 static int Pflag;
174 static int hflag;
175
176 static kvm_t *kd;
177
178 #define FORKSTAT 0x01
179 #define INTRSTAT 0x02
180 #define MEMSTAT 0x04
181 #define SUMSTAT 0x08
182 #define TIMESTAT 0x10
183 #define VMSTAT 0x20
184 #define ZMEMSTAT 0x40
185 #define OBJSTAT 0x80
186
187 static void cpustats(void);
188 static void pcpustats(u_long, int);
189 static void devstats(void);
190 static void doforkst(void);
191 static void dointr(unsigned int, int);
192 static void doobjstat(void);
193 static void dosum(void);
194 static void dovmstat(unsigned int, int);
195 static void domemstat_malloc(void);
196 static void domemstat_zone(void);
197 static void kread(int, void *, size_t);
198 static void kreado(int, void *, size_t, size_t);
199 static void kreadptr(uintptr_t, void *, size_t);
200 static void needhdr(int);
201 static void needresize(int);
202 static void doresize(void);
203 static void printhdr(int, u_long);
204 static void usage(void);
205
206 static long pct(long, long);
207 static long long getuptime(void);
208
209 static char **getdrivedata(char **);
210
211 int
main(int argc,char * argv[])212 main(int argc, char *argv[])
213 {
214 char *bp, *buf, *memf, *nlistf;
215 float f;
216 int bufsize, c, reps, todo;
217 size_t len;
218 unsigned int interval;
219 char errbuf[_POSIX2_LINE_MAX];
220
221 memf = nlistf = NULL;
222 interval = reps = todo = 0;
223 maxshowdevs = 2;
224
225 argc = xo_parse_args(argc, argv);
226 if (argc < 0)
227 return (argc);
228
229 hflag = isatty(1);
230
231 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:sw:z")) != -1) {
232 switch (c) {
233 case 'a':
234 aflag++;
235 break;
236 case 'c':
237 reps = atoi(optarg);
238 break;
239 case 'P':
240 Pflag++;
241 break;
242 case 'f':
243 todo |= FORKSTAT;
244 break;
245 case 'h':
246 hflag = 1;
247 break;
248 case 'H':
249 hflag = 0;
250 break;
251 case 'i':
252 todo |= INTRSTAT;
253 break;
254 case 'M':
255 memf = optarg;
256 break;
257 case 'm':
258 todo |= MEMSTAT;
259 break;
260 case 'N':
261 nlistf = optarg;
262 break;
263 case 'n':
264 nflag = 1;
265 maxshowdevs = atoi(optarg);
266 if (maxshowdevs < 0)
267 xo_errx(1, "number of devices %d is < 0",
268 maxshowdevs);
269 break;
270 case 'o':
271 todo |= OBJSTAT;
272 break;
273 case 'p':
274 if (devstat_buildmatch(optarg, &matches, &num_matches)
275 != 0)
276 xo_errx(1, "%s", devstat_errbuf);
277 break;
278 case 's':
279 todo |= SUMSTAT;
280 break;
281 case 'w':
282 /* Convert to milliseconds. */
283 f = atof(optarg);
284 interval = f * 1000;
285 break;
286 case 'z':
287 todo |= ZMEMSTAT;
288 break;
289 case '?':
290 default:
291 usage();
292 }
293 }
294 argc -= optind;
295 argv += optind;
296
297 xo_set_version(VMSTAT_XO_VERSION);
298 xo_open_container("vmstat");
299 if (!hflag)
300 xo_set_options(NULL, "no-humanize");
301 if (todo == 0)
302 todo = VMSTAT;
303
304 if (memf != NULL) {
305 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
306 if (kd == NULL)
307 xo_errx(1, "kvm_openfiles: %s", errbuf);
308 }
309
310 retry_nlist:
311 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) {
312 if (c > 0) {
313 bufsize = 0;
314 len = 0;
315
316 /*
317 * 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not
318 * found try looking up older 'cnt' symbol.
319 * */
320 if (namelist[X_SUM].n_type == 0 &&
321 strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) {
322 namelist[X_SUM].n_name = "_cnt";
323 goto retry_nlist;
324 }
325
326 /*
327 * 'nintrcnt' doesn't exist in older kernels, but
328 * that isn't fatal.
329 */
330 if (namelist[X_NINTRCNT].n_type == 0 && c == 1)
331 goto nlist_ok;
332
333 for (c = 0; c < (int)(nitems(namelist)); c++)
334 if (namelist[c].n_type == 0)
335 bufsize += strlen(namelist[c].n_name)
336 + 1;
337 bufsize += len + 1;
338 buf = bp = alloca(bufsize);
339
340 for (c = 0; c < (int)(nitems(namelist)); c++)
341 if (namelist[c].n_type == 0) {
342 xo_error(" %s",
343 namelist[c].n_name);
344 len = strlen(namelist[c].n_name);
345 *bp++ = ' ';
346 memcpy(bp, namelist[c].n_name, len);
347 bp += len;
348 }
349 *bp = '\0';
350 xo_error("undefined symbols:\n", buf);
351 } else
352 xo_warnx("kvm_nlist: %s", kvm_geterr(kd));
353 xo_finish();
354 exit(1);
355 }
356 nlist_ok:
357 if (kd && Pflag)
358 xo_errx(1, "Cannot use -P with crash dumps");
359
360 if (todo & VMSTAT) {
361 /*
362 * Make sure that the userland devstat version matches the
363 * kernel devstat version. If not, exit and print a
364 * message informing the user of his mistake.
365 */
366 if (devstat_checkversion(NULL) < 0)
367 xo_errx(1, "%s", devstat_errbuf);
368
369
370 argv = getdrivedata(argv);
371 }
372
373 if (*argv) {
374 f = atof(*argv);
375 interval = f * 1000;
376 if (*++argv)
377 reps = atoi(*argv);
378 }
379
380 if (interval) {
381 if (!reps)
382 reps = -1;
383 } else if (reps)
384 interval = 1 * 1000;
385
386 if (todo & FORKSTAT)
387 doforkst();
388 if (todo & MEMSTAT)
389 domemstat_malloc();
390 if (todo & ZMEMSTAT)
391 domemstat_zone();
392 if (todo & SUMSTAT)
393 dosum();
394 if (todo & OBJSTAT)
395 doobjstat();
396 if (todo & INTRSTAT)
397 dointr(interval, reps);
398 if (todo & VMSTAT)
399 dovmstat(interval, reps);
400 xo_close_container("vmstat");
401 xo_finish();
402 exit(0);
403 }
404
405 static int
mysysctl(const char * name,void * oldp,size_t * oldlenp)406 mysysctl(const char *name, void *oldp, size_t *oldlenp)
407 {
408 int error;
409
410 error = sysctlbyname(name, oldp, oldlenp, NULL, 0);
411 if (error != 0 && errno != ENOMEM)
412 xo_err(1, "sysctl(%s)", name);
413 return (error);
414 }
415
416 static char **
getdrivedata(char ** argv)417 getdrivedata(char **argv)
418 {
419
420 if ((num_devices = devstat_getnumdevs(NULL)) < 0)
421 xo_errx(1, "%s", devstat_errbuf);
422
423 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
424 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
425
426 if (devstat_getdevs(NULL, &cur) == -1)
427 xo_errx(1, "%s", devstat_errbuf);
428
429 num_devices = cur.dinfo->numdevs;
430 generation = cur.dinfo->generation;
431
432 specified_devices = malloc(sizeof(char *));
433 for (num_devices_specified = 0; *argv; ++argv) {
434 if (isdigit(**argv))
435 break;
436 num_devices_specified++;
437 specified_devices = reallocf(specified_devices,
438 sizeof(char *) * num_devices_specified);
439 if (specified_devices == NULL) {
440 xo_errx(1, "%s", "reallocf (specified_devices)");
441 }
442 specified_devices[num_devices_specified - 1] = *argv;
443 }
444 dev_select = NULL;
445
446 if (nflag == 0 && maxshowdevs < num_devices_specified)
447 maxshowdevs = num_devices_specified;
448
449 /*
450 * People are generally only interested in disk statistics when
451 * they're running vmstat. So, that's what we're going to give
452 * them if they don't specify anything by default. We'll also give
453 * them any other random devices in the system so that we get to
454 * maxshowdevs devices, if that many devices exist. If the user
455 * specifies devices on the command line, either through a pattern
456 * match or by naming them explicitly, we will give the user only
457 * those devices.
458 */
459 if ((num_devices_specified == 0) && (num_matches == 0)) {
460 if (devstat_buildmatch(da, &matches, &num_matches) != 0)
461 xo_errx(1, "%s", devstat_errbuf);
462 select_mode = DS_SELECT_ADD;
463 } else
464 select_mode = DS_SELECT_ONLY;
465
466 /*
467 * At this point, selectdevs will almost surely indicate that the
468 * device list has changed, so we don't look for return values of 0
469 * or 1. If we get back -1, though, there is an error.
470 */
471 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections,
472 &select_generation, generation, cur.dinfo->devices,
473 num_devices, matches, num_matches, specified_devices,
474 num_devices_specified, select_mode,
475 maxshowdevs, 0) == -1)
476 xo_errx(1, "%s", devstat_errbuf);
477
478 return(argv);
479 }
480
481 /* Return system uptime in nanoseconds */
482 static long long
getuptime(void)483 getuptime(void)
484 {
485 struct timespec sp;
486
487 (void)clock_gettime(CLOCK_UPTIME, &sp);
488 return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec);
489 }
490
491 static void
fill_vmmeter(struct __vmmeter * vmmp)492 fill_vmmeter(struct __vmmeter *vmmp)
493 {
494 struct vmmeter vm_cnt;
495 size_t size;
496
497 if (kd != NULL) {
498 kread(X_SUM, &vm_cnt, sizeof(vm_cnt));
499 #define GET_COUNTER(name) \
500 vmmp->name = kvm_counter_u64_fetch(kd, (u_long)vm_cnt.name)
501 GET_COUNTER(v_swtch);
502 GET_COUNTER(v_trap);
503 GET_COUNTER(v_syscall);
504 GET_COUNTER(v_intr);
505 GET_COUNTER(v_soft);
506 GET_COUNTER(v_vm_faults);
507 GET_COUNTER(v_io_faults);
508 GET_COUNTER(v_cow_faults);
509 GET_COUNTER(v_cow_optim);
510 GET_COUNTER(v_zfod);
511 GET_COUNTER(v_ozfod);
512 GET_COUNTER(v_swapin);
513 GET_COUNTER(v_swapout);
514 GET_COUNTER(v_swappgsin);
515 GET_COUNTER(v_swappgsout);
516 GET_COUNTER(v_vnodein);
517 GET_COUNTER(v_vnodeout);
518 GET_COUNTER(v_vnodepgsin);
519 GET_COUNTER(v_vnodepgsout);
520 GET_COUNTER(v_intrans);
521 GET_COUNTER(v_tfree);
522 GET_COUNTER(v_forks);
523 GET_COUNTER(v_vforks);
524 GET_COUNTER(v_rforks);
525 GET_COUNTER(v_kthreads);
526 GET_COUNTER(v_forkpages);
527 GET_COUNTER(v_vforkpages);
528 GET_COUNTER(v_rforkpages);
529 GET_COUNTER(v_kthreadpages);
530 #undef GET_COUNTER
531 } else {
532 #define GET_VM_STATS(cat, name) do { \
533 size = sizeof(vmmp->name); \
534 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size); \
535 } while (0)
536 /* sys */
537 GET_VM_STATS(sys, v_swtch);
538 GET_VM_STATS(sys, v_trap);
539 GET_VM_STATS(sys, v_syscall);
540 GET_VM_STATS(sys, v_intr);
541 GET_VM_STATS(sys, v_soft);
542
543 /* vm */
544 GET_VM_STATS(vm, v_vm_faults);
545 GET_VM_STATS(vm, v_io_faults);
546 GET_VM_STATS(vm, v_cow_faults);
547 GET_VM_STATS(vm, v_cow_optim);
548 GET_VM_STATS(vm, v_zfod);
549 GET_VM_STATS(vm, v_ozfod);
550 GET_VM_STATS(vm, v_swapin);
551 GET_VM_STATS(vm, v_swapout);
552 GET_VM_STATS(vm, v_swappgsin);
553 GET_VM_STATS(vm, v_swappgsout);
554 GET_VM_STATS(vm, v_vnodein);
555 GET_VM_STATS(vm, v_vnodeout);
556 GET_VM_STATS(vm, v_vnodepgsin);
557 GET_VM_STATS(vm, v_vnodepgsout);
558 GET_VM_STATS(vm, v_intrans);
559 GET_VM_STATS(vm, v_reactivated);
560 GET_VM_STATS(vm, v_pdwakeups);
561 GET_VM_STATS(vm, v_pdpages);
562 GET_VM_STATS(vm, v_pdshortfalls);
563 GET_VM_STATS(vm, v_dfree);
564 GET_VM_STATS(vm, v_pfree);
565 GET_VM_STATS(vm, v_tfree);
566 GET_VM_STATS(vm, v_page_size);
567 GET_VM_STATS(vm, v_page_count);
568 GET_VM_STATS(vm, v_free_reserved);
569 GET_VM_STATS(vm, v_free_target);
570 GET_VM_STATS(vm, v_free_min);
571 GET_VM_STATS(vm, v_free_count);
572 GET_VM_STATS(vm, v_wire_count);
573 GET_VM_STATS(vm, v_user_wire_count);
574 GET_VM_STATS(vm, v_active_count);
575 GET_VM_STATS(vm, v_inactive_target);
576 GET_VM_STATS(vm, v_inactive_count);
577 GET_VM_STATS(vm, v_laundry_count);
578 GET_VM_STATS(vm, v_pageout_free_min);
579 GET_VM_STATS(vm, v_interrupt_free_min);
580 /*GET_VM_STATS(vm, v_free_severe);*/
581 GET_VM_STATS(vm, v_forks);
582 GET_VM_STATS(vm, v_vforks);
583 GET_VM_STATS(vm, v_rforks);
584 GET_VM_STATS(vm, v_kthreads);
585 GET_VM_STATS(vm, v_forkpages);
586 GET_VM_STATS(vm, v_vforkpages);
587 GET_VM_STATS(vm, v_rforkpages);
588 GET_VM_STATS(vm, v_kthreadpages);
589 #undef GET_VM_STATS
590 }
591 }
592
593 static void
fill_vmtotal(struct vmtotal * vmtp)594 fill_vmtotal(struct vmtotal *vmtp)
595 {
596 size_t size;
597
598 if (kd != NULL) {
599 /* XXX fill vmtp */
600 xo_errx(1, "not implemented");
601 } else {
602 size = sizeof(*vmtp);
603 mysysctl("vm.vmtotal", vmtp, &size);
604 if (size != sizeof(*vmtp))
605 xo_errx(1, "vm.total size mismatch");
606 }
607 }
608
609 /* Determine how many cpu columns, and what index they are in kern.cp_times */
610 static void
getcpuinfo(u_long * maskp,int * maxidp)611 getcpuinfo(u_long *maskp, int *maxidp)
612 {
613 long *times;
614 u_long mask;
615 size_t size;
616 int empty, i, j, maxcpu, maxid;
617
618 if (kd != NULL)
619 xo_errx(1, "not implemented");
620 mask = 0;
621 size = sizeof(maxcpu);
622 mysysctl("kern.smp.maxcpus", &maxcpu, &size);
623 if (size != sizeof(maxcpu))
624 xo_errx(1, "sysctl kern.smp.maxcpus");
625 size = sizeof(long) * maxcpu * CPUSTATES;
626 times = malloc(size);
627 if (times == NULL)
628 xo_err(1, "malloc %zd bytes", size);
629 mysysctl("kern.cp_times", times, &size);
630 maxid = (size / CPUSTATES / sizeof(long)) - 1;
631 for (i = 0; i <= maxid; i++) {
632 empty = 1;
633 for (j = 0; empty && j < CPUSTATES; j++) {
634 if (times[i * CPUSTATES + j] != 0)
635 empty = 0;
636 }
637 if (!empty)
638 mask |= (1ul << i);
639 }
640 if (maskp)
641 *maskp = mask;
642 if (maxidp)
643 *maxidp = maxid;
644 }
645
646 static void
dovmstat(unsigned int interval,int reps)647 dovmstat(unsigned int interval, int reps)
648 {
649 struct clockinfo clockrate;
650 struct vmtotal total;
651 struct devinfo *tmp_dinfo;
652 u_long cpumask;
653 size_t size;
654 time_t uptime, halfuptime;
655 int maxid, rate_adj, retval;
656
657 uptime = getuptime() / 1000000000LL;
658 halfuptime = uptime / 2;
659 rate_adj = 1;
660 maxid = 0;
661 cpumask = 0;
662
663 /*
664 * If the user stops the program (control-Z) and then resumes it,
665 * print out the header again.
666 */
667 (void)signal(SIGCONT, needhdr);
668
669 /*
670 * If our standard output is a tty, then install a SIGWINCH handler
671 * and set wresized so that our first iteration through the main
672 * vmstat loop will peek at the terminal's current rows to find out
673 * how many lines can fit in a screenful of output.
674 */
675 if (isatty(fileno(stdout)) != 0) {
676 wresized = 1;
677 (void)signal(SIGWINCH, needresize);
678 } else {
679 wresized = 0;
680 winlines = VMSTAT_DEFAULT_LINES;
681 }
682
683 if (kd != NULL) {
684 if (namelist[X_STATHZ].n_type != 0 &&
685 namelist[X_STATHZ].n_value != 0)
686 kread(X_STATHZ, &hz, sizeof(hz));
687 if (!hz)
688 kread(X_HZ, &hz, sizeof(hz));
689 } else {
690 size = sizeof(clockrate);
691 mysysctl("kern.clockrate", &clockrate, &size);
692 if (size != sizeof(clockrate))
693 xo_errx(1, "clockrate size mismatch");
694 hz = clockrate.hz;
695 }
696
697 if (Pflag) {
698 getcpuinfo(&cpumask, &maxid);
699 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES;
700 cur_cp_times = calloc(1, size_cp_times);
701 last_cp_times = calloc(1, size_cp_times);
702 }
703 for (hdrcnt = 1;;) {
704 if (!--hdrcnt)
705 printhdr(maxid, cpumask);
706 if (kd != NULL) {
707 if (kvm_getcptime(kd, cur.cp_time) < 0)
708 xo_errx(1, "kvm_getcptime: %s", kvm_geterr(kd));
709 } else {
710 size = sizeof(cur.cp_time);
711 mysysctl("kern.cp_time", &cur.cp_time, &size);
712 if (size != sizeof(cur.cp_time))
713 xo_errx(1, "cp_time size mismatch");
714 }
715 if (Pflag) {
716 size = size_cp_times;
717 mysysctl("kern.cp_times", cur_cp_times, &size);
718 if (size != size_cp_times)
719 xo_errx(1, "cp_times mismatch");
720 }
721
722 tmp_dinfo = last.dinfo;
723 last.dinfo = cur.dinfo;
724 cur.dinfo = tmp_dinfo;
725 last.snap_time = cur.snap_time;
726
727 /*
728 * Here what we want to do is refresh our device stats.
729 * getdevs() returns 1 when the device list has changed.
730 * If the device list has changed, we want to go through
731 * the selection process again, in case a device that we
732 * were previously displaying has gone away.
733 */
734 switch (devstat_getdevs(NULL, &cur)) {
735 case -1:
736 xo_errx(1, "%s", devstat_errbuf);
737 break;
738 case 1:
739 num_devices = cur.dinfo->numdevs;
740 generation = cur.dinfo->generation;
741
742 retval = devstat_selectdevs(&dev_select, &num_selected,
743 &num_selections, &select_generation,
744 generation, cur.dinfo->devices,
745 num_devices, matches, num_matches,
746 specified_devices,
747 num_devices_specified, select_mode,
748 maxshowdevs, 0);
749 switch (retval) {
750 case -1:
751 xo_errx(1, "%s", devstat_errbuf);
752 break;
753 case 1:
754 printhdr(maxid, cpumask);
755 break;
756 default:
757 break;
758 }
759 break;
760 default:
761 break;
762 }
763
764 fill_vmmeter(&sum);
765 fill_vmtotal(&total);
766 xo_open_container("processes");
767 xo_emit("{:runnable/%2d} {:waiting/%2ld} "
768 "{:swapped-out/%2ld}", total.t_rq - 1, total.t_dw +
769 total.t_pw, total.t_sw);
770 xo_close_container("processes");
771 xo_open_container("memory");
772 #define rate(x) (unsigned long)(((x) * rate_adj + halfuptime) / uptime)
773 xo_emit(" {[:4}{h,hn-decimal:available-memory/%ju}{]:}",
774 (uintmax_t)total.t_avm * sum.v_page_size);
775 xo_emit(" {[:4}{h,hn-decimal:free-memory/%ju}{]:}",
776 (uintmax_t)total.t_free * sum.v_page_size);
777 xo_emit(" {[:4}{h,hn-decimal,hn-1000:total-page-faults/%lu}{]:} ",
778 rate(sum.v_vm_faults - osum.v_vm_faults));
779 xo_close_container("memory");
780
781 xo_open_container("paging-rates");
782 xo_emit("{:page-reactivated/%3lu} ",
783 rate(sum.v_reactivated - osum.v_reactivated));
784 xo_emit("{:paged-in/%3lu} ",
785 rate(sum.v_swapin + sum.v_vnodein -
786 (osum.v_swapin + osum.v_vnodein)));
787 xo_emit("{:paged-out/%3lu}",
788 rate(sum.v_swapout + sum.v_vnodeout -
789 (osum.v_swapout + osum.v_vnodeout)));
790 xo_emit(" {[:4}{h,hn-decimal,hn-1000:freed/%lu}{]:}",
791 rate(sum.v_tfree - osum.v_tfree));
792 xo_emit(" {[:4}{h,hn-decimal,hn-1000:scanned/%lu}{]:}",
793 rate(sum.v_pdpages - osum.v_pdpages));
794 xo_close_container("paging-rates");
795
796 devstats();
797 xo_open_container("fault-rates");
798 xo_emit(" {[:4}{h,hn-decimal,hn-1000:interrupts/%lu}{]:}"
799 " {[:4}{h,hn-decimal,hn-1000:system-calls/%lu}{]:}"
800 " {[:4}{h,hn-decimal,hn-1000:context-switches/%lu}{]:}",
801 rate(sum.v_intr - osum.v_intr),
802 rate(sum.v_syscall - osum.v_syscall),
803 rate(sum.v_swtch - osum.v_swtch));
804 xo_close_container("fault-rates");
805 if (Pflag)
806 pcpustats(cpumask, maxid);
807 else
808 cpustats();
809 xo_emit("\n");
810 xo_flush();
811 if (reps >= 0 && --reps <= 0)
812 break;
813 osum = sum;
814 uptime = interval;
815 rate_adj = 1000;
816 /*
817 * We round upward to avoid losing low-frequency events
818 * (i.e., >= 1 per interval but < 1 per millisecond).
819 */
820 if (interval != 1)
821 halfuptime = (uptime + 1) / 2;
822 else
823 halfuptime = 0;
824 (void)usleep(interval * 1000);
825 }
826 }
827
828 static void
printhdr(int maxid,u_long cpumask)829 printhdr(int maxid, u_long cpumask)
830 {
831 int i, num_shown;
832
833 num_shown = MIN(num_selected, maxshowdevs);
834 xo_emit(" {T:procs} {T:memory} {T:/page%*s}", 19, "");
835 if (num_shown > 1)
836 xo_emit(" {T:/disks %*s} ", num_shown * 5 - 7, "");
837 else if (num_shown == 1)
838 xo_emit(" {T:disks} ");
839 xo_emit(" {T:faults} ");
840 if (Pflag) {
841 for (i = 0; i <= maxid; i++) {
842 if (cpumask & (1ul << i))
843 xo_emit(" {T:/cpu%d} ", i);
844 }
845 xo_emit("\n");
846 } else
847 xo_emit(" {T:cpu}\n");
848 xo_emit(" {T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re}"
849 " {T:pi} {T:po} {T:fr} {T:sr} ");
850 for (i = 0; i < num_devices; i++)
851 if ((dev_select[i].selected) &&
852 (dev_select[i].selected <= maxshowdevs))
853 xo_emit("{T:/%3.3s%d} ", dev_select[i].device_name,
854 dev_select[i].unit_number);
855 xo_emit(" {T:in} {T:sy} {T:cs}");
856 if (Pflag) {
857 for (i = 0; i <= maxid; i++) {
858 if (cpumask & (1ul << i))
859 xo_emit(" {T:us} {T:sy} {T:id}");
860 }
861 xo_emit("\n");
862 } else
863 xo_emit(" {T:us} {T:sy} {T:id}\n");
864 if (wresized != 0)
865 doresize();
866 hdrcnt = winlines;
867 }
868
869 /*
870 * Force a header to be prepended to the next output.
871 */
872 static void
needhdr(int dummy __unused)873 needhdr(int dummy __unused)
874 {
875
876 hdrcnt = 1;
877 }
878
879 /*
880 * When the terminal is resized, force an update of the maximum number of rows
881 * printed between each header repetition. Then force a new header to be
882 * prepended to the next output.
883 */
884 void
needresize(int signo __unused)885 needresize(int signo __unused)
886 {
887
888 wresized = 1;
889 hdrcnt = 1;
890 }
891
892 /*
893 * Update the global `winlines' count of terminal rows.
894 */
895 void
doresize(void)896 doresize(void)
897 {
898 struct winsize w;
899 int status;
900
901 for (;;) {
902 status = ioctl(fileno(stdout), TIOCGWINSZ, &w);
903 if (status == -1 && errno == EINTR)
904 continue;
905 else if (status == -1)
906 xo_err(1, "ioctl");
907 if (w.ws_row > 3)
908 winlines = w.ws_row - 3;
909 else
910 winlines = VMSTAT_DEFAULT_LINES;
911 break;
912 }
913
914 /*
915 * Inhibit doresize() calls until we are rescheduled by SIGWINCH.
916 */
917 wresized = 0;
918 }
919
920 static long
pct(long top,long bot)921 pct(long top, long bot)
922 {
923 long ans;
924
925 if (bot == 0)
926 return(0);
927 ans = (quad_t)top * 100 / bot;
928 return (ans);
929 }
930
931 #define PCT(top, bot) pct((long)(top), (long)(bot))
932
933 static void
dosum(void)934 dosum(void)
935 {
936 struct nchstats lnchstats;
937 size_t size;
938 long nchtotal;
939
940 fill_vmmeter(&sum);
941 xo_open_container("summary-statistics");
942 xo_emit("{:context-switches/%9u} {N:cpu context switches}\n",
943 sum.v_swtch);
944 xo_emit("{:interrupts/%9u} {N:device interrupts}\n",
945 sum.v_intr);
946 xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n",
947 sum.v_soft);
948 xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap);
949 xo_emit("{:system-calls/%9u} {N:system calls}\n",
950 sum.v_syscall);
951 xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n",
952 sum.v_kthreads);
953 xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks);
954 xo_emit("{:vforks/%9u} {N:vfork() calls}\n",
955 sum.v_vforks);
956 xo_emit("{:rforks/%9u} {N:rfork() calls}\n",
957 sum.v_rforks);
958 xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n",
959 sum.v_swapin);
960 xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n",
961 sum.v_swappgsin);
962 xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n",
963 sum.v_swapout);
964 xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n",
965 sum.v_swappgsout);
966 xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n",
967 sum.v_vnodein);
968 xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n",
969 sum.v_vnodepgsin);
970 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n",
971 sum.v_vnodeout);
972 xo_emit("{:vnode-page-out-pages/%9u} {N:vnode pager pages paged out}\n",
973 sum.v_vnodepgsout);
974 xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n",
975 sum.v_pdwakeups);
976 xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page "
977 "daemon}\n", sum.v_pdpages);
978 xo_emit("{:page-reclamation-shortfalls/%9u} {N:clean page reclamation "
979 "shortfalls}\n", sum.v_pdshortfalls);
980 xo_emit("{:reactivated/%9u} {N:pages reactivated by the page daemon}\n",
981 sum.v_reactivated);
982 xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n",
983 sum.v_cow_faults);
984 xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write "
985 "optimized faults}\n", sum.v_cow_optim);
986 xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n",
987 sum.v_zfod);
988 xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n",
989 sum.v_ozfod);
990 xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n",
991 sum.v_intrans);
992 xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n",
993 sum.v_vm_faults);
994 xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n",
995 sum.v_io_faults);
996 xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by "
997 "kernel thread creation}\n", sum.v_kthreadpages);
998 xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n",
999 sum.v_forkpages);
1000 xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n",
1001 sum.v_vforkpages);
1002 xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n",
1003 sum.v_rforkpages);
1004 xo_emit("{:pages-freed/%9u} {N:pages freed}\n",
1005 sum.v_tfree);
1006 xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n",
1007 sum.v_dfree);
1008 xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n",
1009 sum.v_pfree);
1010 xo_emit("{:active-pages/%9u} {N:pages active}\n",
1011 sum.v_active_count);
1012 xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n",
1013 sum.v_inactive_count);
1014 xo_emit("{:laundry-pages/%9u} {N:pages in the laundry queue}\n",
1015 sum.v_laundry_count);
1016 xo_emit("{:wired-pages/%9u} {N:pages wired down}\n",
1017 sum.v_wire_count);
1018 xo_emit("{:virtual-user-wired-pages/%9lu} {N:virtual user pages wired "
1019 "down}\n", sum.v_user_wire_count);
1020 xo_emit("{:free-pages/%9u} {N:pages free}\n",
1021 sum.v_free_count);
1022 xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size);
1023 if (kd != NULL) {
1024 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats));
1025 } else {
1026 size = sizeof(lnchstats);
1027 mysysctl("vfs.cache.nchstats", &lnchstats, &size);
1028 if (size != sizeof(lnchstats))
1029 xo_errx(1, "vfs.cache.nchstats size mismatch");
1030 }
1031 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits +
1032 lnchstats.ncs_badhits + lnchstats.ncs_falsehits +
1033 lnchstats.ncs_miss + lnchstats.ncs_long;
1034 xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n",
1035 nchtotal);
1036 xo_emit("{P:/%9s} {N:cache hits} "
1037 "({:positive-cache-hits/%ld}% pos + "
1038 "{:negative-cache-hits/%ld}% {N:neg}) "
1039 "system {:cache-hit-percent/%ld}% per-directory\n",
1040 "", PCT(lnchstats.ncs_goodhits, nchtotal),
1041 PCT(lnchstats.ncs_neghits, nchtotal),
1042 PCT(lnchstats.ncs_pass2, nchtotal));
1043 xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, "
1044 "{L:falsehits} {:false-hits/%ld}%, "
1045 "{L:toolong} {:too-long/%ld}%\n", "",
1046 PCT(lnchstats.ncs_badhits, nchtotal),
1047 PCT(lnchstats.ncs_falsehits, nchtotal),
1048 PCT(lnchstats.ncs_long, nchtotal));
1049 xo_close_container("summary-statistics");
1050 }
1051
1052 static void
doforkst(void)1053 doforkst(void)
1054 {
1055
1056 fill_vmmeter(&sum);
1057 xo_open_container("fork-statistics");
1058 xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, "
1059 "{L:average} {:fork-average/%.2f}\n",
1060 sum.v_forks, sum.v_forkpages,
1061 sum.v_forks == 0 ? 0.0 :
1062 (double)sum.v_forkpages / sum.v_forks);
1063 xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, "
1064 "{L:average} {:vfork-average/%.2f}\n",
1065 sum.v_vforks, sum.v_vforkpages,
1066 sum.v_vforks == 0 ? 0.0 :
1067 (double)sum.v_vforkpages / sum.v_vforks);
1068 xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, "
1069 "{L:average} {:rfork-average/%.2f}\n",
1070 sum.v_rforks, sum.v_rforkpages,
1071 sum.v_rforks == 0 ? 0.0 :
1072 (double)sum.v_rforkpages / sum.v_rforks);
1073 xo_close_container("fork-statistics");
1074 }
1075
1076 static void
devstats(void)1077 devstats(void)
1078 {
1079 long double busy_seconds, transfers_per_second;
1080 long tmp;
1081 int di, dn, state;
1082
1083 for (state = 0; state < CPUSTATES; ++state) {
1084 tmp = cur.cp_time[state];
1085 cur.cp_time[state] -= last.cp_time[state];
1086 last.cp_time[state] = tmp;
1087 }
1088
1089 busy_seconds = cur.snap_time - last.snap_time;
1090
1091 xo_open_list("device");
1092 for (dn = 0; dn < num_devices; dn++) {
1093 if (dev_select[dn].selected == 0 ||
1094 dev_select[dn].selected > maxshowdevs)
1095 continue;
1096
1097 di = dev_select[dn].position;
1098
1099 if (devstat_compute_statistics(&cur.dinfo->devices[di],
1100 &last.dinfo->devices[di], busy_seconds,
1101 DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
1102 DSM_NONE) != 0)
1103 xo_errx(1, "%s", devstat_errbuf);
1104
1105 xo_open_instance("device");
1106 xo_emit("{ekq:name/%s%d}",
1107 dev_select[dn].device_name,
1108 dev_select[dn].unit_number);
1109 xo_emit("{[:5}{h,hn-decimal,hn-1000:transfers/%ju}{]:}",
1110 (uintmax_t)transfers_per_second);
1111 xo_close_instance("device");
1112 }
1113 xo_close_list("device");
1114 }
1115
1116 static void
percent(const char * name,long pctv,int * over)1117 percent(const char *name, long pctv, int *over)
1118 {
1119 char fmt[64];
1120
1121 snprintf(fmt, sizeof(fmt), " {:%s/%%%ulld/%%lld}", name,
1122 (*over && pctv <= 9) ? 1 : 2);
1123 xo_emit(fmt, pctv);
1124 if (*over && pctv <= 9)
1125 (*over)--;
1126 else if (pctv >= 100)
1127 (*over)++;
1128 }
1129
1130 static void
cpustats(void)1131 cpustats(void)
1132 {
1133 long total;
1134 int state, over;
1135
1136 total = 0;
1137 for (state = 0; state < CPUSTATES; ++state)
1138 total += cur.cp_time[state];
1139 if (total == 0)
1140 total = 1;
1141 over = 0;
1142 xo_open_container("cpu-statistics");
1143 percent("user", 100LL * (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) /
1144 total, &over);
1145 percent("system", 100LL * (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) /
1146 total, &over);
1147 percent("idle", 100LL * cur.cp_time[CP_IDLE] / total, &over);
1148 xo_close_container("cpu-statistics");
1149 }
1150
1151 static void
pcpustats(u_long cpumask,int maxid)1152 pcpustats(u_long cpumask, int maxid)
1153 {
1154 long tmp, total;
1155 int i, state, over;
1156
1157 /* devstats does this for cp_time */
1158 for (i = 0; i <= maxid; i++) {
1159 if ((cpumask & (1ul << i)) == 0)
1160 continue;
1161 for (state = 0; state < CPUSTATES; ++state) {
1162 tmp = cur_cp_times[i * CPUSTATES + state];
1163 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i *
1164 CPUSTATES + state];
1165 last_cp_times[i * CPUSTATES + state] = tmp;
1166 }
1167 }
1168
1169 over = 0;
1170 xo_open_list("cpu");
1171 for (i = 0; i <= maxid; i++) {
1172 if ((cpumask & (1ul << i)) == 0)
1173 continue;
1174 xo_open_instance("cpu");
1175 xo_emit("{ke:name/%d}", i);
1176 total = 0;
1177 for (state = 0; state < CPUSTATES; ++state)
1178 total += cur_cp_times[i * CPUSTATES + state];
1179 if (total == 0)
1180 total = 1;
1181 percent("user",
1182 100LL * (cur_cp_times[i * CPUSTATES + CP_USER] +
1183 cur_cp_times[i * CPUSTATES + CP_NICE]) / total, &over);
1184 percent("system",
1185 100LL * (cur_cp_times[i * CPUSTATES + CP_SYS] +
1186 cur_cp_times[i * CPUSTATES + CP_INTR]) / total, &over);
1187 percent("idle",
1188 100LL * cur_cp_times[i * CPUSTATES + CP_IDLE] / total,
1189 &over);
1190 xo_close_instance("cpu");
1191 }
1192 xo_close_list("cpu");
1193 }
1194
1195 static unsigned int
read_intrcnts(unsigned long ** intrcnts)1196 read_intrcnts(unsigned long **intrcnts)
1197 {
1198 size_t intrcntlen;
1199 uintptr_t kaddr;
1200
1201 if (kd != NULL) {
1202 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen));
1203 if ((*intrcnts = malloc(intrcntlen)) == NULL)
1204 err(1, "malloc()");
1205 if (namelist[X_NINTRCNT].n_type == 0)
1206 kread(X_INTRCNT, *intrcnts, intrcntlen);
1207 else {
1208 kread(X_INTRCNT, &kaddr, sizeof(kaddr));
1209 kreadptr(kaddr, *intrcnts, intrcntlen);
1210 }
1211 } else {
1212 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) {
1213 *intrcnts = reallocf(*intrcnts, intrcntlen);
1214 if (*intrcnts == NULL)
1215 err(1, "reallocf()");
1216 if (mysysctl("hw.intrcnt", *intrcnts, &intrcntlen) == 0)
1217 break;
1218 }
1219 }
1220
1221 return (intrcntlen / sizeof(unsigned long));
1222 }
1223
1224 static void
print_intrcnts(unsigned long * intrcnts,unsigned long * old_intrcnts,char * intrnames,unsigned int nintr,size_t istrnamlen,long long period_ms)1225 print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts,
1226 char *intrnames, unsigned int nintr, size_t istrnamlen, long long period_ms)
1227 {
1228 uint64_t inttotal, old_inttotal, total_count, total_rate;
1229 unsigned long count, rate;
1230 unsigned int i;
1231
1232 inttotal = 0;
1233 old_inttotal = 0;
1234 xo_open_list("interrupt");
1235 for (i = 0; i < nintr; i++) {
1236 if (intrnames[0] != '\0' && (*intrcnts != 0 || aflag)) {
1237 count = *intrcnts - *old_intrcnts;
1238 rate = ((uint64_t)count * 1000 + period_ms / 2) / period_ms;
1239 xo_open_instance("interrupt");
1240 xo_emit("{d:name/%-*s}{ket:name/%s} "
1241 "{:total/%20lu} {:rate/%10lu}\n",
1242 (int)istrnamlen, intrnames, intrnames, count, rate);
1243 xo_close_instance("interrupt");
1244 }
1245 intrnames += strlen(intrnames) + 1;
1246 inttotal += *intrcnts++;
1247 old_inttotal += *old_intrcnts++;
1248 }
1249 total_count = inttotal - old_inttotal;
1250 total_rate = (total_count * 1000 + period_ms / 2) / period_ms;
1251 xo_close_list("interrupt");
1252 xo_emit("{L:/%-*s} {:total-interrupts/%20ju} "
1253 "{:total-rate/%10ju}\n", (int)istrnamlen,
1254 "Total", (uintmax_t)total_count, (uintmax_t)total_rate);
1255 }
1256
1257 static void
dointr(unsigned int interval,int reps)1258 dointr(unsigned int interval, int reps)
1259 {
1260 unsigned long *intrcnts, *old_intrcnts;
1261 char *intrname, *intrnames;
1262 long long period_ms, old_uptime, uptime;
1263 size_t clen, inamlen, istrnamlen;
1264 uintptr_t kaddr;
1265 unsigned int nintr;
1266
1267 old_intrcnts = NULL;
1268 uptime = getuptime();
1269
1270 /* Get the names of each interrupt source */
1271 if (kd != NULL) {
1272 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen));
1273 if ((intrnames = malloc(inamlen)) == NULL)
1274 xo_err(1, "malloc()");
1275 if (namelist[X_NINTRCNT].n_type == 0)
1276 kread(X_INTRNAMES, intrnames, inamlen);
1277 else {
1278 kread(X_INTRNAMES, &kaddr, sizeof(kaddr));
1279 kreadptr(kaddr, intrnames, inamlen);
1280 }
1281 } else {
1282 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) {
1283 if ((intrnames = reallocf(intrnames, inamlen)) == NULL)
1284 xo_err(1, "reallocf()");
1285 if (mysysctl("hw.intrnames", intrnames, &inamlen) == 0)
1286 break;
1287 }
1288 }
1289
1290 /* Determine the length of the longest interrupt name */
1291 intrname = intrnames;
1292 istrnamlen = strlen("interrupt");
1293 while (intrname < intrnames + inamlen) {
1294 clen = strlen(intrname);
1295 if (clen > istrnamlen)
1296 istrnamlen = clen;
1297 intrname += strlen(intrname) + 1;
1298 }
1299 xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n",
1300 (int)istrnamlen, "interrupt", "total", "rate");
1301
1302 /*
1303 * Loop reps times printing differential interrupt counts. If reps is
1304 * zero, then run just once, printing total counts
1305 */
1306 xo_open_container("interrupt-statistics");
1307
1308 period_ms = uptime / 1000000;
1309 while(1) {
1310 nintr = read_intrcnts(&intrcnts);
1311 /*
1312 * Initialize old_intrcnts to 0 for the first pass, so
1313 * print_intrcnts will print total interrupts since boot
1314 */
1315 if (old_intrcnts == NULL) {
1316 old_intrcnts = calloc(nintr, sizeof(unsigned long));
1317 if (old_intrcnts == NULL)
1318 xo_err(1, "calloc()");
1319 }
1320
1321 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr,
1322 istrnamlen, period_ms);
1323 xo_flush();
1324
1325 free(old_intrcnts);
1326 old_intrcnts = intrcnts;
1327 if (reps >= 0 && --reps <= 0)
1328 break;
1329 usleep(interval * 1000);
1330 old_uptime = uptime;
1331 uptime = getuptime();
1332 period_ms = (uptime - old_uptime) / 1000000;
1333 }
1334
1335 xo_close_container("interrupt-statistics");
1336 }
1337
1338 static void
domemstat_malloc(void)1339 domemstat_malloc(void)
1340 {
1341 struct memory_type_list *mtlp;
1342 struct memory_type *mtp;
1343 size_t i, zones;
1344 int error, first;
1345
1346 mtlp = memstat_mtl_alloc();
1347 if (mtlp == NULL) {
1348 xo_warn("memstat_mtl_alloc");
1349 return;
1350 }
1351 if (kd == NULL) {
1352 if (memstat_sysctl_malloc(mtlp, 0) < 0) {
1353 xo_warnx("memstat_sysctl_malloc: %s",
1354 memstat_strerror(memstat_mtl_geterror(mtlp)));
1355 return;
1356 }
1357 } else {
1358 if (memstat_kvm_malloc(mtlp, kd) < 0) {
1359 error = memstat_mtl_geterror(mtlp);
1360 if (error == MEMSTAT_ERROR_KVM)
1361 xo_warnx("memstat_kvm_malloc: %s",
1362 kvm_geterr(kd));
1363 else
1364 xo_warnx("memstat_kvm_malloc: %s",
1365 memstat_strerror(error));
1366 }
1367 }
1368 xo_open_container("malloc-statistics");
1369 xo_emit("{T:/%16s} {T:/%4s} {T:/%5s} {T:/%3s} {T:Size(s)}\n",
1370 "Type", "Use", "Memory", "Req");
1371 xo_open_list("memory");
1372 zones = memstat_malloc_zone_get_count();
1373 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1374 mtp = memstat_mtl_next(mtp)) {
1375 if (memstat_get_numallocs(mtp) == 0 &&
1376 memstat_get_count(mtp) == 0)
1377 continue;
1378 xo_open_instance("memory");
1379 xo_emit("{k:type/%16s/%s} "
1380 "{[:4}{h,hn-decimal,hn-1000:in-use/%ju}{]:} "
1381 "{[:5}{h,hn-decimal:memory-use/%ju}{]:} "
1382 "{[:4}{h,hn-decimal,hn-1000:requests/%ju}{]:} ",
1383 memstat_get_name(mtp), (uintmax_t)memstat_get_count(mtp),
1384 (uintmax_t)memstat_get_bytes(mtp),
1385 (uintmax_t)memstat_get_numallocs(mtp));
1386 first = 1;
1387 xo_open_list("size");
1388 for (i = 0; i < zones; i++) {
1389 if (memstat_malloc_zone_used(mtp, i)) {
1390 if (!first)
1391 xo_emit(",");
1392 xo_emit("{lh:size/%d}", memstat_malloc_zone_get_size(i));
1393 first = 0;
1394 }
1395 }
1396 xo_close_list("size");
1397 xo_close_instance("memory");
1398 xo_emit("\n");
1399 }
1400 xo_close_list("memory");
1401 xo_close_container("malloc-statistics");
1402 memstat_mtl_free(mtlp);
1403 }
1404
1405 static void
domemstat_zone(void)1406 domemstat_zone(void)
1407 {
1408 struct memory_type_list *mtlp;
1409 struct memory_type *mtp;
1410 int error, len;
1411
1412 mtlp = memstat_mtl_alloc();
1413 if (mtlp == NULL) {
1414 xo_warn("memstat_mtl_alloc");
1415 return;
1416 }
1417 if (kd == NULL) {
1418 if (memstat_sysctl_uma(mtlp, 0) < 0) {
1419 xo_warnx("memstat_sysctl_uma: %s",
1420 memstat_strerror(memstat_mtl_geterror(mtlp)));
1421 return;
1422 }
1423 } else {
1424 if (memstat_kvm_uma(mtlp, kd) < 0) {
1425 error = memstat_mtl_geterror(mtlp);
1426 if (error == MEMSTAT_ERROR_KVM)
1427 xo_warnx("memstat_kvm_uma: %s",
1428 kvm_geterr(kd));
1429 else
1430 xo_warnx("memstat_kvm_uma: %s",
1431 memstat_strerror(error));
1432 }
1433 }
1434 xo_open_container("memory-zone-statistics");
1435 xo_emit("{T:/%-19s} {T:/%7s} {T:/%7s} {T:/%8s} {T:/%8s} {T:/%8s} "
1436 "{T:/%4s} {T:/%4s} {T:/%4s}\n", "ITEM", "SIZE",
1437 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP", "XDOM");
1438 xo_open_list("zone");
1439 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1440 mtp = memstat_mtl_next(mtp)) {
1441 len = strlen(memstat_get_name(mtp));
1442 xo_open_instance("zone");
1443 xo_emit("{k:name/%s}:{d:size/%*ju}{e:size/%ju},"
1444 "{:limit/%7ju},{:used/%8ju},"
1445 "{:free/%8ju},{:requests/%8ju},"
1446 "{:fail/%4ju},{:sleep/%4ju},{:xdomain/%4ju}\n",
1447 memstat_get_name(mtp), MAX(1, 26 - len),
1448 (uintmax_t)memstat_get_size(mtp),
1449 (uintmax_t)memstat_get_size(mtp),
1450 (uintmax_t)memstat_get_countlimit(mtp),
1451 (uintmax_t)memstat_get_count(mtp),
1452 (uintmax_t)memstat_get_free(mtp),
1453 (uintmax_t)memstat_get_numallocs(mtp),
1454 (uintmax_t)memstat_get_failures(mtp),
1455 (uintmax_t)memstat_get_sleeps(mtp),
1456 (uintmax_t)memstat_get_xdomain(mtp));
1457 xo_close_instance("zone");
1458 }
1459 memstat_mtl_free(mtlp);
1460 xo_close_list("zone");
1461 xo_close_container("memory-zone-statistics");
1462 }
1463
1464 static void
display_object(struct kinfo_vmobject * kvo)1465 display_object(struct kinfo_vmobject *kvo)
1466 {
1467 const char *str;
1468
1469 xo_open_instance("object");
1470 xo_emit("{:resident/%5ju} ", (uintmax_t)kvo->kvo_resident);
1471 xo_emit("{:active/%5ju} ", (uintmax_t)kvo->kvo_active);
1472 xo_emit("{:inactive/%5ju} ", (uintmax_t)kvo->kvo_inactive);
1473 xo_emit("{:laundry/%5ju} ", (uintmax_t)kvo->kvo_laundry);
1474 xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count);
1475 xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count);
1476
1477 #define MEMATTR_STR(type, val) \
1478 if (kvo->kvo_memattr == (type)) { \
1479 str = (val); \
1480 } else
1481 #ifdef VM_MEMATTR_UNCACHEABLE
1482 MEMATTR_STR(VM_MEMATTR_UNCACHEABLE, "UC")
1483 #endif
1484 #ifdef VM_MEMATTR_WRITE_COMBINING
1485 MEMATTR_STR(VM_MEMATTR_WRITE_COMBINING, "WC")
1486 #endif
1487 #ifdef VM_MEMATTR_WRITE_THROUGH
1488 MEMATTR_STR(VM_MEMATTR_WRITE_THROUGH, "WT")
1489 #endif
1490 #ifdef VM_MEMATTR_WRITE_PROTECTED
1491 MEMATTR_STR(VM_MEMATTR_WRITE_PROTECTED, "WP")
1492 #endif
1493 #ifdef VM_MEMATTR_WRITE_BACK
1494 MEMATTR_STR(VM_MEMATTR_WRITE_BACK, "WB")
1495 #endif
1496 #ifdef VM_MEMATTR_WEAK_UNCACHEABLE
1497 MEMATTR_STR(VM_MEMATTR_WEAK_UNCACHEABLE, "UC-")
1498 #endif
1499 #ifdef VM_MEMATTR_WB_WA
1500 MEMATTR_STR(VM_MEMATTR_WB_WA, "WB")
1501 #endif
1502 #ifdef VM_MEMATTR_NOCACHE
1503 MEMATTR_STR(VM_MEMATTR_NOCACHE, "NC")
1504 #endif
1505 #ifdef VM_MEMATTR_DEVICE
1506 MEMATTR_STR(VM_MEMATTR_DEVICE, "DEV")
1507 #endif
1508 #ifdef VM_MEMATTR_DEVICE_NP
1509 MEMATTR_STR(VM_MEMATTR_DEVICE, "NP")
1510 #endif
1511 #ifdef VM_MEMATTR_CACHEABLE
1512 MEMATTR_STR(VM_MEMATTR_CACHEABLE, "C")
1513 #endif
1514 #ifdef VM_MEMATTR_PREFETCHABLE
1515 MEMATTR_STR(VM_MEMATTR_PREFETCHABLE, "PRE")
1516 #endif
1517 {
1518 str = "??";
1519 }
1520 #undef MEMATTR_STR
1521 xo_emit("{:attribute/%-3s} ", str);
1522 switch (kvo->kvo_type) {
1523 case KVME_TYPE_NONE:
1524 str = "--";
1525 break;
1526 case KVME_TYPE_DEFAULT:
1527 str = "df";
1528 break;
1529 case KVME_TYPE_VNODE:
1530 str = "vn";
1531 break;
1532 case KVME_TYPE_SWAP:
1533 str = "sw";
1534 break;
1535 case KVME_TYPE_DEVICE:
1536 str = "dv";
1537 break;
1538 case KVME_TYPE_PHYS:
1539 str = "ph";
1540 break;
1541 case KVME_TYPE_DEAD:
1542 str = "dd";
1543 break;
1544 case KVME_TYPE_SG:
1545 str = "sg";
1546 break;
1547 case KVME_TYPE_MGTDEVICE:
1548 str = "md";
1549 break;
1550 case KVME_TYPE_UNKNOWN:
1551 default:
1552 str = "??";
1553 break;
1554 }
1555 xo_emit("{:type/%-2s} ", str);
1556 if ((kvo->kvo_flags & KVMO_FLAG_SYSVSHM) != 0)
1557 xo_emit("{:sysvshm/sysvshm(%ju:%u)} ",
1558 (uintmax_t)kvo->kvo_vn_fileid, kvo->kvo_vn_fsid_freebsd11);
1559 if ((kvo->kvo_flags & KVMO_FLAG_POSIXSHM) != 0)
1560 xo_emit("{:posixshm/posixshm@/posixshm}");
1561 xo_emit("{:path/%-s}\n", kvo->kvo_path);
1562 xo_close_instance("object");
1563 }
1564
1565 static void
doobjstat(void)1566 doobjstat(void)
1567 {
1568 struct kinfo_vmobject *kvo;
1569 int cnt, i;
1570
1571 kvo = kinfo_getvmobject(&cnt);
1572 if (kvo == NULL) {
1573 xo_warn("Failed to fetch VM object list");
1574 return;
1575 }
1576 xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:LAUND/%5s} "
1577 "{T:REF/%3s} {T:SHD/%3s} {T:CM/%2s} {T:TP/%3s} {T:PATH/%s}\n");
1578 xo_open_list("object");
1579 for (i = 0; i < cnt; i++)
1580 display_object(&kvo[i]);
1581 free(kvo);
1582 xo_close_list("object");
1583 }
1584
1585 /*
1586 * kread reads something from the kernel, given its nlist index.
1587 */
1588 static void
kreado(int nlx,void * addr,size_t size,size_t offset)1589 kreado(int nlx, void *addr, size_t size, size_t offset)
1590 {
1591 const char *sym;
1592
1593 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1594 sym = namelist[nlx].n_name;
1595 if (*sym == '_')
1596 ++sym;
1597 xo_errx(1, "symbol %s not defined", sym);
1598 }
1599 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr,
1600 size) != size) {
1601 sym = namelist[nlx].n_name;
1602 if (*sym == '_')
1603 ++sym;
1604 xo_errx(1, "%s: %s", sym, kvm_geterr(kd));
1605 }
1606 }
1607
1608 static void
kread(int nlx,void * addr,size_t size)1609 kread(int nlx, void *addr, size_t size)
1610 {
1611
1612 kreado(nlx, addr, size, 0);
1613 }
1614
1615 static void
kreadptr(uintptr_t addr,void * buf,size_t size)1616 kreadptr(uintptr_t addr, void *buf, size_t size)
1617 {
1618
1619 if ((size_t)kvm_read(kd, addr, buf, size) != size)
1620 xo_errx(1, "%s", kvm_geterr(kd));
1621 }
1622
1623 static void __dead2
usage(void)1624 usage(void)
1625 {
1626 xo_error("%s%s",
1627 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n",
1628 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n");
1629 xo_finish();
1630 exit(1);
1631 }
1632