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