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