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ed(1): simplify by using arc4random_buf().
[freebsd-src.git] / usr.bin / vmstat / vmstat.c
blob0dbd2d165dda59e2719bf6e8827a385d09d4cee9
1 /*
2 * Copyright (c) 1980, 1986, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #ifndef lint
31 static const char copyright[] =
32 "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
33 The Regents of the University of California. All rights reserved.\n";
34 #endif /* not lint */
35
36 #if 0
37 #ifndef lint
38 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
39 #endif /* not lint */
40 #endif
41
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD$");
44
45 #include <sys/param.h>
46 #include <sys/proc.h>
47 #include <sys/uio.h>
48 #include <sys/namei.h>
49 #include <sys/malloc.h>
50 #include <sys/signal.h>
51 #include <sys/fcntl.h>
52 #include <sys/ioctl.h>
53 #include <sys/resource.h>
54 #include <sys/sysctl.h>
55 #include <sys/time.h>
56 #include <sys/user.h>
57 #include <sys/vmmeter.h>
58 #include <sys/pcpu.h>
59
60 #include <vm/vm_param.h>
61
62 #include <ctype.h>
63 #include <devstat.h>
64 #include <err.h>
65 #include <errno.h>
66 #include <inttypes.h>
67 #include <kvm.h>
68 #include <limits.h>
69 #include <memstat.h>
70 #include <nlist.h>
71 #include <paths.h>
72 #include <stdio.h>
73 #include <stdlib.h>
74 #include <string.h>
75 #include <sysexits.h>
76 #include <time.h>
77 #include <unistd.h>
78 #include <libutil.h>
79 #include <libxo/xo.h>
80
81 #define VMSTAT_XO_VERSION "1"
82
83 static char da[] = "da";
84
85 static struct nlist namelist[] = {
86 #define X_SUM 0
87 { "_vm_cnt" },
88 #define X_HZ 1
89 { "_hz" },
90 #define X_STATHZ 2
91 { "_stathz" },
92 #define X_NCHSTATS 3
93 { "_nchstats" },
94 #define X_INTRNAMES 4
95 { "_intrnames" },
96 #define X_SINTRNAMES 5
97 { "_sintrnames" },
98 #define X_INTRCNT 6
99 { "_intrcnt" },
100 #define X_SINTRCNT 7
101 { "_sintrcnt" },
102 #ifdef notyet
103 #define X_DEFICIT XXX
104 { "_deficit" },
105 #define X_REC XXX
106 { "_rectime" },
107 #define X_PGIN XXX
108 { "_pgintime" },
109 #define X_XSTATS XXX
110 { "_xstats" },
111 #define X_END XXX
112 #else
113 #define X_END 8
114 #endif
115 { "" },
116 };
117
118 static struct statinfo cur, last;
119 static int num_devices, maxshowdevs;
120 static long generation;
121 static struct device_selection *dev_select;
122 static int num_selected;
123 static struct devstat_match *matches;
124 static int num_matches = 0;
125 static int num_devices_specified, num_selections;
126 static long select_generation;
127 static char **specified_devices;
128 static devstat_select_mode select_mode;
129
130 static struct vmmeter sum, osum;
131
132 #define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */
133 volatile sig_atomic_t wresized; /* Tty resized, when non-zero. */
134 static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */
135
136 static int aflag;
137 static int nflag;
138 static int Pflag;
139 static int hflag;
140
141 static kvm_t *kd;
142
143 #define FORKSTAT 0x01
144 #define INTRSTAT 0x02
145 #define MEMSTAT 0x04
146 #define SUMSTAT 0x08
147 #define TIMESTAT 0x10
148 #define VMSTAT 0x20
149 #define ZMEMSTAT 0x40
150 #define OBJSTAT 0x80
151
152 static void cpustats(void);
153 static void pcpustats(int, u_long, int);
154 static void devstats(void);
155 static void doforkst(void);
156 static void dointr(unsigned int, int);
157 static void doobjstat(void);
158 static void dosum(void);
159 static void dovmstat(unsigned int, int);
160 static void domemstat_malloc(void);
161 static void domemstat_zone(void);
162 static void kread(int, void *, size_t);
163 static void kreado(int, void *, size_t, size_t);
164 static char *kgetstr(const char *);
165 static void needhdr(int);
166 static void needresize(int);
167 static void doresize(void);
168 static void printhdr(int, u_long);
169 static void usage(void);
170
171 static long pct(long, long);
172 static long long getuptime(void);
173
174 static char **getdrivedata(char **);
175
176 int
177 main(int argc, char *argv[])
178 {
179 int c, todo;
180 unsigned int interval;
181 float f;
182 int reps;
183 char *memf, *nlistf;
184 char errbuf[_POSIX2_LINE_MAX];
185
186 memf = nlistf = NULL;
187 interval = reps = todo = 0;
188 maxshowdevs = 2;
189 hflag = isatty(1);
190
191 argc = xo_parse_args(argc, argv);
192 if (argc < 0)
193 return argc;
194
195 while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:stw:z")) != -1) {
196 switch (c) {
197 case 'a':
198 aflag++;
199 break;
200 case 'c':
201 reps = atoi(optarg);
202 break;
203 case 'P':
204 Pflag++;
205 break;
206 case 'f':
207 todo |= FORKSTAT;
208 break;
209 case 'h':
210 hflag = 1;
211 break;
212 case 'H':
213 hflag = 0;
214 break;
215 case 'i':
216 todo |= INTRSTAT;
217 break;
218 case 'M':
219 memf = optarg;
220 break;
221 case 'm':
222 todo |= MEMSTAT;
223 break;
224 case 'N':
225 nlistf = optarg;
226 break;
227 case 'n':
228 nflag = 1;
229 maxshowdevs = atoi(optarg);
230 if (maxshowdevs < 0)
231 xo_errx(1, "number of devices %d is < 0",
232 maxshowdevs);
233 break;
234 case 'o':
235 todo |= OBJSTAT;
236 break;
237 case 'p':
238 if (devstat_buildmatch(optarg, &matches, &num_matches) != 0)
239 xo_errx(1, "%s", devstat_errbuf);
240 break;
241 case 's':
242 todo |= SUMSTAT;
243 break;
244 case 't':
245 #ifdef notyet
246 todo |= TIMESTAT;
247 #else
248 xo_errx(EX_USAGE, "sorry, -t is not (re)implemented yet");
249 #endif
250 break;
251 case 'w':
252 /* Convert to milliseconds. */
253 f = atof(optarg);
254 interval = f * 1000;
255 break;
256 case 'z':
257 todo |= ZMEMSTAT;
258 break;
259 case '?':
260 default:
261 usage();
262 }
263 }
264 argc -= optind;
265 argv += optind;
266
267 xo_set_version(VMSTAT_XO_VERSION);
268 if (todo == 0)
269 todo = VMSTAT;
270
271 if (memf != NULL) {
272 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
273 if (kd == NULL)
274 xo_errx(1, "kvm_openfiles: %s", errbuf);
275 }
276
277 retry_nlist:
278 if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) {
279 if (c > 0) {
280 int bufsize = 0, len = 0;
281 char *buf, *bp;
282 /*
283 * 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not
284 * found try looking up older 'cnt' symbol.
285 * */
286 if (namelist[X_SUM].n_type == 0 &&
287 strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) {
288 namelist[X_SUM].n_name = "_cnt";
289 goto retry_nlist;
290 }
291 for (c = 0;
292 c < (int)(sizeof(namelist)/sizeof(namelist[0]));
293 c++)
294 if (namelist[c].n_type == 0)
295 bufsize += strlen(namelist[c].n_name) + 1;
296 bufsize += len + 1;
297 buf = bp = alloca(bufsize);
298
299 for (c = 0;
300 c < (int)(sizeof(namelist)/sizeof(namelist[0]));
301 c++)
302 if (namelist[c].n_type == 0) {
303 xo_error(" %s",
304 namelist[c].n_name);
305 len = strlen(namelist[c].n_name);
306 *bp++ = ' ';
307 memcpy(bp, namelist[c].n_name, len);
308 bp += len;
309 }
310 *bp = '\0';
311 xo_error("undefined symbols:\n", buf);
312 } else
313 xo_warnx("kvm_nlist: %s", kvm_geterr(kd));
314 xo_finish();
315 exit(1);
316 }
317 if (kd && Pflag)
318 xo_errx(1, "Cannot use -P with crash dumps");
319
320 if (todo & VMSTAT) {
321 /*
322 * Make sure that the userland devstat version matches the
323 * kernel devstat version. If not, exit and print a
324 * message informing the user of his mistake.
325 */
326 if (devstat_checkversion(NULL) < 0)
327 xo_errx(1, "%s", devstat_errbuf);
328
329
330 argv = getdrivedata(argv);
331 }
332
333 if (*argv) {
334 f = atof(*argv);
335 interval = f * 1000;
336 if (*++argv)
337 reps = atoi(*argv);
338 }
339
340 if (interval) {
341 if (!reps)
342 reps = -1;
343 } else if (reps)
344 interval = 1 * 1000;
345
346 if (todo & FORKSTAT)
347 doforkst();
348 if (todo & MEMSTAT)
349 domemstat_malloc();
350 if (todo & ZMEMSTAT)
351 domemstat_zone();
352 if (todo & SUMSTAT)
353 dosum();
354 if (todo & OBJSTAT)
355 doobjstat();
356 #ifdef notyet
357 if (todo & TIMESTAT)
358 dotimes();
359 #endif
360 if (todo & INTRSTAT)
361 dointr(interval, reps);
362 if (todo & VMSTAT)
363 dovmstat(interval, reps);
364 xo_finish();
365 exit(0);
366 }
367
368 static int
369 mysysctl(const char *name, void *oldp, size_t *oldlenp,
370 void *newp, size_t newlen)
371 {
372 int error;
373
374 error = sysctlbyname(name, oldp, oldlenp, newp, newlen);
375 if (error != 0 && errno != ENOMEM)
376 xo_err(1, "sysctl(%s)", name);
377 return (error);
378 }
379
380 static char **
381 getdrivedata(char **argv)
382 {
383 if ((num_devices = devstat_getnumdevs(NULL)) < 0)
384 xo_errx(1, "%s", devstat_errbuf);
385
386 cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
387 last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
388
389 if (devstat_getdevs(NULL, &cur) == -1)
390 xo_errx(1, "%s", devstat_errbuf);
391
392 num_devices = cur.dinfo->numdevs;
393 generation = cur.dinfo->generation;
394
395 specified_devices = (char **)malloc(sizeof(char *));
396 for (num_devices_specified = 0; *argv; ++argv) {
397 if (isdigit(**argv))
398 break;
399 num_devices_specified++;
400 specified_devices = (char **)realloc(specified_devices,
401 sizeof(char *) *
402 num_devices_specified);
403 specified_devices[num_devices_specified - 1] = *argv;
404 }
405 dev_select = NULL;
406
407 if (nflag == 0 && maxshowdevs < num_devices_specified)
408 maxshowdevs = num_devices_specified;
409
410 /*
411 * People are generally only interested in disk statistics when
412 * they're running vmstat. So, that's what we're going to give
413 * them if they don't specify anything by default. We'll also give
414 * them any other random devices in the system so that we get to
415 * maxshowdevs devices, if that many devices exist. If the user
416 * specifies devices on the command line, either through a pattern
417 * match or by naming them explicitly, we will give the user only
418 * those devices.
419 */
420 if ((num_devices_specified == 0) && (num_matches == 0)) {
421 if (devstat_buildmatch(da, &matches, &num_matches) != 0)
422 xo_errx(1, "%s", devstat_errbuf);
423
424 select_mode = DS_SELECT_ADD;
425 } else
426 select_mode = DS_SELECT_ONLY;
427
428 /*
429 * At this point, selectdevs will almost surely indicate that the
430 * device list has changed, so we don't look for return values of 0
431 * or 1. If we get back -1, though, there is an error.
432 */
433 if (devstat_selectdevs(&dev_select, &num_selected, &num_selections,
434 &select_generation, generation, cur.dinfo->devices,
435 num_devices, matches, num_matches, specified_devices,
436 num_devices_specified, select_mode,
437 maxshowdevs, 0) == -1)
438 xo_errx(1, "%s", devstat_errbuf);
439
440 return(argv);
441 }
442
443 /* Return system uptime in nanoseconds */
444 static long long
445 getuptime(void)
446 {
447 struct timespec sp;
448
449 (void)clock_gettime(CLOCK_UPTIME, &sp);
450
451 return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec);
452 }
453
454 static void
455 fill_pcpu(struct pcpu ***pcpup, int* maxcpup)
456 {
457 struct pcpu **pcpu;
458
459 int maxcpu, i;
460
461 *pcpup = NULL;
462
463 if (kd == NULL)
464 return;
465
466 maxcpu = kvm_getmaxcpu(kd);
467 if (maxcpu < 0)
468 xo_errx(1, "kvm_getmaxcpu: %s", kvm_geterr(kd));
469
470 pcpu = calloc(maxcpu, sizeof(struct pcpu *));
471 if (pcpu == NULL)
472 xo_err(1, "calloc");
473
474 for (i = 0; i < maxcpu; i++) {
475 pcpu[i] = kvm_getpcpu(kd, i);
476 if (pcpu[i] == (struct pcpu *)-1)
477 xo_errx(1, "kvm_getpcpu: %s", kvm_geterr(kd));
478 }
479
480 *maxcpup = maxcpu;
481 *pcpup = pcpu;
482 }
483
484 static void
485 free_pcpu(struct pcpu **pcpu, int maxcpu)
486 {
487 int i;
488
489 for (i = 0; i < maxcpu; i++)
490 free(pcpu[i]);
491 free(pcpu);
492 }
493
494 static void
495 fill_vmmeter(struct vmmeter *vmmp)
496 {
497 struct pcpu **pcpu;
498 int maxcpu, i;
499
500 if (kd != NULL) {
501 kread(X_SUM, vmmp, sizeof(*vmmp));
502 fill_pcpu(&pcpu, &maxcpu);
503 for (i = 0; i < maxcpu; i++) {
504 if (pcpu[i] == NULL)
505 continue;
506 #define ADD_FROM_PCPU(i, name) \
507 vmmp->name += pcpu[i]->pc_cnt.name
508 ADD_FROM_PCPU(i, v_swtch);
509 ADD_FROM_PCPU(i, v_trap);
510 ADD_FROM_PCPU(i, v_syscall);
511 ADD_FROM_PCPU(i, v_intr);
512 ADD_FROM_PCPU(i, v_soft);
513 ADD_FROM_PCPU(i, v_vm_faults);
514 ADD_FROM_PCPU(i, v_io_faults);
515 ADD_FROM_PCPU(i, v_cow_faults);
516 ADD_FROM_PCPU(i, v_cow_optim);
517 ADD_FROM_PCPU(i, v_zfod);
518 ADD_FROM_PCPU(i, v_ozfod);
519 ADD_FROM_PCPU(i, v_swapin);
520 ADD_FROM_PCPU(i, v_swapout);
521 ADD_FROM_PCPU(i, v_swappgsin);
522 ADD_FROM_PCPU(i, v_swappgsout);
523 ADD_FROM_PCPU(i, v_vnodein);
524 ADD_FROM_PCPU(i, v_vnodeout);
525 ADD_FROM_PCPU(i, v_vnodepgsin);
526 ADD_FROM_PCPU(i, v_vnodepgsout);
527 ADD_FROM_PCPU(i, v_intrans);
528 ADD_FROM_PCPU(i, v_tfree);
529 ADD_FROM_PCPU(i, v_forks);
530 ADD_FROM_PCPU(i, v_vforks);
531 ADD_FROM_PCPU(i, v_rforks);
532 ADD_FROM_PCPU(i, v_kthreads);
533 ADD_FROM_PCPU(i, v_forkpages);
534 ADD_FROM_PCPU(i, v_vforkpages);
535 ADD_FROM_PCPU(i, v_rforkpages);
536 ADD_FROM_PCPU(i, v_kthreadpages);
537 #undef ADD_FROM_PCPU
538 }
539 free_pcpu(pcpu, maxcpu);
540 } else {
541 size_t size = sizeof(unsigned int);
542 #define GET_VM_STATS(cat, name) \
543 mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0)
544 /* sys */
545 GET_VM_STATS(sys, v_swtch);
546 GET_VM_STATS(sys, v_trap);
547 GET_VM_STATS(sys, v_syscall);
548 GET_VM_STATS(sys, v_intr);
549 GET_VM_STATS(sys, v_soft);
550
551 /* vm */
552 GET_VM_STATS(vm, v_vm_faults);
553 GET_VM_STATS(vm, v_io_faults);
554 GET_VM_STATS(vm, v_cow_faults);
555 GET_VM_STATS(vm, v_cow_optim);
556 GET_VM_STATS(vm, v_zfod);
557 GET_VM_STATS(vm, v_ozfod);
558 GET_VM_STATS(vm, v_swapin);
559 GET_VM_STATS(vm, v_swapout);
560 GET_VM_STATS(vm, v_swappgsin);
561 GET_VM_STATS(vm, v_swappgsout);
562 GET_VM_STATS(vm, v_vnodein);
563 GET_VM_STATS(vm, v_vnodeout);
564 GET_VM_STATS(vm, v_vnodepgsin);
565 GET_VM_STATS(vm, v_vnodepgsout);
566 GET_VM_STATS(vm, v_intrans);
567 GET_VM_STATS(vm, v_reactivated);
568 GET_VM_STATS(vm, v_pdwakeups);
569 GET_VM_STATS(vm, v_pdpages);
570 GET_VM_STATS(vm, v_tcached);
571 GET_VM_STATS(vm, v_dfree);
572 GET_VM_STATS(vm, v_pfree);
573 GET_VM_STATS(vm, v_tfree);
574 GET_VM_STATS(vm, v_page_size);
575 GET_VM_STATS(vm, v_page_count);
576 GET_VM_STATS(vm, v_free_reserved);
577 GET_VM_STATS(vm, v_free_target);
578 GET_VM_STATS(vm, v_free_min);
579 GET_VM_STATS(vm, v_free_count);
580 GET_VM_STATS(vm, v_wire_count);
581 GET_VM_STATS(vm, v_active_count);
582 GET_VM_STATS(vm, v_inactive_target);
583 GET_VM_STATS(vm, v_inactive_count);
584 GET_VM_STATS(vm, v_cache_count);
585 GET_VM_STATS(vm, v_pageout_free_min);
586 GET_VM_STATS(vm, v_interrupt_free_min);
587 /*GET_VM_STATS(vm, v_free_severe);*/
588 GET_VM_STATS(vm, v_forks);
589 GET_VM_STATS(vm, v_vforks);
590 GET_VM_STATS(vm, v_rforks);
591 GET_VM_STATS(vm, v_kthreads);
592 GET_VM_STATS(vm, v_forkpages);
593 GET_VM_STATS(vm, v_vforkpages);
594 GET_VM_STATS(vm, v_rforkpages);
595 GET_VM_STATS(vm, v_kthreadpages);
596 #undef GET_VM_STATS
597 }
598 }
599
600 static void
601 fill_vmtotal(struct vmtotal *vmtp)
602 {
603 if (kd != NULL) {
604 /* XXX fill vmtp */
605 xo_errx(1, "not implemented");
606 } else {
607 size_t size = sizeof(*vmtp);
608 mysysctl("vm.vmtotal", vmtp, &size, NULL, 0);
609 if (size != sizeof(*vmtp))
610 xo_errx(1, "vm.total size mismatch");
611 }
612 }
613
614 /* Determine how many cpu columns, and what index they are in kern.cp_times */
615 static int
616 getcpuinfo(u_long *maskp, int *maxidp)
617 {
618 int maxcpu;
619 int maxid;
620 int ncpus;
621 int i, j;
622 int empty;
623 size_t size;
624 long *times;
625 u_long mask;
626
627 if (kd != NULL)
628 xo_errx(1, "not implemented");
629 mask = 0;
630 ncpus = 0;
631 size = sizeof(maxcpu);
632 mysysctl("kern.smp.maxcpus", &maxcpu, &size, NULL, 0);
633 if (size != sizeof(maxcpu))
634 xo_errx(1, "sysctl kern.smp.maxcpus");
635 size = sizeof(long) * maxcpu * CPUSTATES;
636 times = malloc(size);
637 if (times == NULL)
638 xo_err(1, "malloc %zd bytes", size);
639 mysysctl("kern.cp_times", times, &size, NULL, 0);
640 maxid = (size / CPUSTATES / sizeof(long)) - 1;
641 for (i = 0; i <= maxid; i++) {
642 empty = 1;
643 for (j = 0; empty && j < CPUSTATES; j++) {
644 if (times[i * CPUSTATES + j] != 0)
645 empty = 0;
646 }
647 if (!empty) {
648 mask |= (1ul << i);
649 ncpus++;
650 }
651 }
652 if (maskp)
653 *maskp = mask;
654 if (maxidp)
655 *maxidp = maxid;
656 return (ncpus);
657 }
658
659
660 static void
661 prthuman(const char *name, u_int64_t val, int size)
662 {
663 char buf[10];
664 int flags;
665 char fmt[128];
666
667 snprintf(fmt, sizeof(fmt), "{:%s/%%*s}", name);
668
669 if (size < 5 || size > 9)
670 xo_errx(1, "doofus");
671 flags = HN_B | HN_NOSPACE | HN_DECIMAL;
672 humanize_number(buf, size, val, "", HN_AUTOSCALE, flags);
673 xo_attr("value", "%ju", (uintmax_t) val);
674 xo_emit(fmt, size, buf);
675 }
676
677 static int hz, hdrcnt;
678
679 static long *cur_cp_times;
680 static long *last_cp_times;
681 static size_t size_cp_times;
682
683 static void
684 dovmstat(unsigned int interval, int reps)
685 {
686 struct vmtotal total;
687 time_t uptime, halfuptime;
688 struct devinfo *tmp_dinfo;
689 size_t size;
690 int ncpus, maxid;
691 u_long cpumask;
692 int rate_adj;
693
694 uptime = getuptime() / 1000000000LL;
695 halfuptime = uptime / 2;
696 rate_adj = 1;
697 ncpus = 1;
698 maxid = 0;
699
700 /*
701 * If the user stops the program (control-Z) and then resumes it,
702 * print out the header again.
703 */
704 (void)signal(SIGCONT, needhdr);
705
706 /*
707 * If our standard output is a tty, then install a SIGWINCH handler
708 * and set wresized so that our first iteration through the main
709 * vmstat loop will peek at the terminal's current rows to find out
710 * how many lines can fit in a screenful of output.
711 */
712 if (isatty(fileno(stdout)) != 0) {
713 wresized = 1;
714 (void)signal(SIGWINCH, needresize);
715 } else {
716 wresized = 0;
717 winlines = VMSTAT_DEFAULT_LINES;
718 }
719
720 if (kd != NULL) {
721 if (namelist[X_STATHZ].n_type != 0 &&
722 namelist[X_STATHZ].n_value != 0)
723 kread(X_STATHZ, &hz, sizeof(hz));
724 if (!hz)
725 kread(X_HZ, &hz, sizeof(hz));
726 } else {
727 struct clockinfo clockrate;
728
729 size = sizeof(clockrate);
730 mysysctl("kern.clockrate", &clockrate, &size, NULL, 0);
731 if (size != sizeof(clockrate))
732 xo_errx(1, "clockrate size mismatch");
733 hz = clockrate.hz;
734 }
735
736 if (Pflag) {
737 ncpus = getcpuinfo(&cpumask, &maxid);
738 size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES;
739 cur_cp_times = calloc(1, size_cp_times);
740 last_cp_times = calloc(1, size_cp_times);
741 }
742 for (hdrcnt = 1;;) {
743 if (!--hdrcnt)
744 printhdr(maxid, cpumask);
745 if (kd != NULL) {
746 if (kvm_getcptime(kd, cur.cp_time) < 0)
747 xo_errx(1, "kvm_getcptime: %s", kvm_geterr(kd));
748 } else {
749 size = sizeof(cur.cp_time);
750 mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0);
751 if (size != sizeof(cur.cp_time))
752 xo_errx(1, "cp_time size mismatch");
753 }
754 if (Pflag) {
755 size = size_cp_times;
756 mysysctl("kern.cp_times", cur_cp_times, &size, NULL, 0);
757 if (size != size_cp_times)
758 xo_errx(1, "cp_times mismatch");
759 }
760
761 tmp_dinfo = last.dinfo;
762 last.dinfo = cur.dinfo;
763 cur.dinfo = tmp_dinfo;
764 last.snap_time = cur.snap_time;
765
766 /*
767 * Here what we want to do is refresh our device stats.
768 * getdevs() returns 1 when the device list has changed.
769 * If the device list has changed, we want to go through
770 * the selection process again, in case a device that we
771 * were previously displaying has gone away.
772 */
773 switch (devstat_getdevs(NULL, &cur)) {
774 case -1:
775 xo_errx(1, "%s", devstat_errbuf);
776 break;
777 case 1: {
778 int retval;
779
780 num_devices = cur.dinfo->numdevs;
781 generation = cur.dinfo->generation;
782
783 retval = devstat_selectdevs(&dev_select, &num_selected,
784 &num_selections, &select_generation,
785 generation, cur.dinfo->devices,
786 num_devices, matches, num_matches,
787 specified_devices,
788 num_devices_specified, select_mode,
789 maxshowdevs, 0);
790 switch (retval) {
791 case -1:
792 xo_errx(1, "%s", devstat_errbuf);
793 break;
794 case 1:
795 printhdr(maxid, cpumask);
796 break;
797 default:
798 break;
799 }
800 }
801 default:
802 break;
803 }
804
805 fill_vmmeter(&sum);
806 fill_vmtotal(&total);
807 xo_open_container("processes");
808 xo_emit("{:runnable/%1d} {:waiting/%ld} "
809 "{:swapped-out/%ld}",
810 total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
811 xo_close_container("processes");
812 xo_open_container("memory");
813 #define vmstat_pgtok(a) ((a) * (sum.v_page_size >> 10))
814 #define rate(x) (((x) * rate_adj + halfuptime) / uptime) /* round */
815 if (hflag) {
816 xo_emit("");
817 prthuman("available-memory",
818 total.t_avm * (u_int64_t)sum.v_page_size, 5);
819 xo_emit(" ");
820 prthuman("free-memory",
821 total.t_free * (u_int64_t)sum.v_page_size, 5);
822 xo_emit(" ");
823 } else {
824 xo_emit(" ");
825 xo_emit("{:available-memory/%7d}",
826 vmstat_pgtok(total.t_avm));
827 xo_emit(" ");
828 xo_emit("{:free-memory/%7d}",
829 vmstat_pgtok(total.t_free));
830 }
831 xo_emit("{:total-page-faults/%5lu} ",
832 (unsigned long)rate(sum.v_vm_faults -
833 osum.v_vm_faults));
834 xo_close_container("memory");
835
836 xo_open_container("paging-rates");
837 xo_emit("{:page-reactivated/%3lu} ",
838 (unsigned long)rate(sum.v_reactivated - osum.v_reactivated));
839 xo_emit("{:paged-in/%3lu} ",
840 (unsigned long)rate(sum.v_swapin + sum.v_vnodein -
841 (osum.v_swapin + osum.v_vnodein)));
842 xo_emit("{:paged-out/%3lu} ",
843 (unsigned long)rate(sum.v_swapout + sum.v_vnodeout -
844 (osum.v_swapout + osum.v_vnodeout)));
845 xo_emit("{:freed/%5lu} ",
846 (unsigned long)rate(sum.v_tfree - osum.v_tfree));
847 xo_emit("{:scanned/%4lu} ",
848 (unsigned long)rate(sum.v_pdpages - osum.v_pdpages));
849 xo_close_container("paging-rates");
850
851 devstats();
852 xo_open_container("fault-rates");
853 xo_emit("{:interrupts/%4lu} {:system-calls/%5lu} "
854 "{:context-switches/%5u}",
855 (unsigned long)rate(sum.v_intr - osum.v_intr),
856 (unsigned long)rate(sum.v_syscall - osum.v_syscall),
857 (unsigned long)rate(sum.v_swtch - osum.v_swtch));
858 xo_close_container("fault-rates");
859 if (Pflag)
860 pcpustats(ncpus, cpumask, maxid);
861 else
862 cpustats();
863 xo_emit("\n");
864 xo_flush();
865 if (reps >= 0 && --reps <= 0)
866 break;
867 osum = sum;
868 uptime = interval;
869 rate_adj = 1000;
870 /*
871 * We round upward to avoid losing low-frequency events
872 * (i.e., >= 1 per interval but < 1 per millisecond).
873 */
874 if (interval != 1)
875 halfuptime = (uptime + 1) / 2;
876 else
877 halfuptime = 0;
878 (void)usleep(interval * 1000);
879 }
880 }
881
882 static void
883 printhdr(int maxid, u_long cpumask)
884 {
885 int i, num_shown;
886
887 num_shown = MIN(num_selected, maxshowdevs);
888 if (hflag) {
889 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, "");
890 } else {
891 xo_emit("{T:procs} {T:memory} {T:/page%*s}", 19, "");
892 }
893 if (num_shown > 1)
894 xo_emit(" {T:/disks %*s}", num_shown * 4 - 7, "");
895 else if (num_shown == 1)
896 xo_emit(" {T:disks}");
897 xo_emit(" {T:faults} ");
898 if (Pflag) {
899 for (i = 0; i <= maxid; i++) {
900 if (cpumask & (1ul << i))
901 xo_emit(" {T:/cpu%d} ", i);
902 }
903 xo_emit("\n");
904 } else
905 xo_emit(" {T:cpu}\n");
906 if (hflag) {
907 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re} {T:pi} {T:po} {T:fr} {T:sr} ");
908 } else {
909 xo_emit("{T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re} {T:pi} {T:po} {T:fr} {T:sr} ");
910 }
911 for (i = 0; i < num_devices; i++)
912 if ((dev_select[i].selected)
913 && (dev_select[i].selected <= maxshowdevs))
914 xo_emit("{T:/%c%c%d} ", dev_select[i].device_name[0],
915 dev_select[i].device_name[1],
916 dev_select[i].unit_number);
917 xo_emit(" {T:in} {T:sy} {T:cs}");
918 if (Pflag) {
919 for (i = 0; i <= maxid; i++) {
920 if (cpumask & (1ul << i))
921 xo_emit(" {T:us} {T:sy} {T:id}");
922 }
923 xo_emit("\n");
924 } else
925 xo_emit(" {T:us} {T:sy} {T:id}\n");
926 if (wresized != 0)
927 doresize();
928 hdrcnt = winlines;
929 }
930
931 /*
932 * Force a header to be prepended to the next output.
933 */
934 static void
935 needhdr(int dummy __unused)
936 {
937
938 hdrcnt = 1;
939 }
940
941 /*
942 * When the terminal is resized, force an update of the maximum number of rows
943 * printed between each header repetition. Then force a new header to be
944 * prepended to the next output.
945 */
946 void
947 needresize(int signo)
948 {
949
950 wresized = 1;
951 hdrcnt = 1;
952 }
953
954 /*
955 * Update the global `winlines' count of terminal rows.
956 */
957 void
958 doresize(void)
959 {
960 int status;
961 struct winsize w;
962
963 for (;;) {
964 status = ioctl(fileno(stdout), TIOCGWINSZ, &w);
965 if (status == -1 && errno == EINTR)
966 continue;
967 else if (status == -1)
968 xo_err(1, "ioctl");
969 if (w.ws_row > 3)
970 winlines = w.ws_row - 3;
971 else
972 winlines = VMSTAT_DEFAULT_LINES;
973 break;
974 }
975
976 /*
977 * Inhibit doresize() calls until we are rescheduled by SIGWINCH.
978 */
979 wresized = 0;
980 }
981
982 #ifdef notyet
983 static void
984 dotimes(void)
985 {
986 unsigned int pgintime, rectime;
987
988 kread(X_REC, &rectime, sizeof(rectime));
989 kread(X_PGIN, &pgintime, sizeof(pgintime));
990 kread(X_SUM, &sum, sizeof(sum));
991 xo_emit("{:page-reclaims/%u} {N:reclaims}, "
992 "{:reclaim-time/%u} {N:total time (usec)}\n",
993 sum.v_pgrec, rectime);
994 xo_emit("{L:average}: {:reclaim-average/%u} {N:usec \\/ reclaim}\n",
995 rectime / sum.v_pgrec);
996 xo_emit("\n");
997 xo_emit("{:page-ins/%u} {N:page ins}, "
998 "{:page-in-time/%u} {N:total time (msec)}\n",
999 sum.v_pgin, pgintime / 10);
1000 xo_emit("{L:average}: {:average/%8.1f} {N:msec \\/ page in}\n",
1001 pgintime / (sum.v_pgin * 10.0));
1002 }
1003 #endif
1004
1005 static long
1006 pct(long top, long bot)
1007 {
1008 long ans;
1009
1010 if (bot == 0)
1011 return(0);
1012 ans = (quad_t)top * 100 / bot;
1013 return (ans);
1014 }
1015
1016 #define PCT(top, bot) pct((long)(top), (long)(bot))
1017
1018 static void
1019 dosum(void)
1020 {
1021 struct nchstats lnchstats;
1022 long nchtotal;
1023
1024 fill_vmmeter(&sum);
1025 xo_open_container("summary-statistics");
1026 xo_emit("{:context-switches/%9u} {N:cpu context switches}\n",
1027 sum.v_swtch);
1028 xo_emit("{:interrupts/%9u} {N:device interrupts}\n",
1029 sum.v_intr);
1030 xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n",
1031 sum.v_soft);
1032 xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap);
1033 xo_emit("{:system-calls/%9u} {N:system calls}\n",
1034 sum.v_syscall);
1035 xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n",
1036 sum.v_kthreads);
1037 xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks);
1038 xo_emit("{:vforks/%9u} {N:vfork() calls}\n",
1039 sum.v_vforks);
1040 xo_emit("{:rforks/%9u} {N:rfork() calls}\n",
1041 sum.v_rforks);
1042 xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n",
1043 sum.v_swapin);
1044 xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n",
1045 sum.v_swappgsin);
1046 xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n",
1047 sum.v_swapout);
1048 xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n",
1049 sum.v_swappgsout);
1050 xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n",
1051 sum.v_vnodein);
1052 xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n",
1053 sum.v_vnodepgsin);
1054 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n",
1055 sum.v_vnodeout);
1056 xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pages paged out}\n",
1057 sum.v_vnodepgsout);
1058 xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n",
1059 sum.v_pdwakeups);
1060 xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page daemon}\n",
1061 sum.v_pdpages);
1062 xo_emit("{:reactivated/%9u} {N:pages reactivated}\n",
1063 sum.v_reactivated);
1064 xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n",
1065 sum.v_cow_faults);
1066 xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write optimized faults}\n",
1067 sum.v_cow_optim);
1068 xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n",
1069 sum.v_zfod);
1070 xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n",
1071 sum.v_ozfod);
1072 xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n",
1073 sum.v_intrans);
1074 xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n",
1075 sum.v_vm_faults);
1076 xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n",
1077 sum.v_io_faults);
1078 xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by kernel thread creation}\n",
1079 sum.v_kthreadpages);
1080 xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n",
1081 sum.v_forkpages);
1082 xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n",
1083 sum.v_vforkpages);
1084 xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n",
1085 sum.v_rforkpages);
1086 xo_emit("{:pages-total-cached/%9u} {N:pages cached}\n",
1087 sum.v_tcached);
1088 xo_emit("{:pages-freed/%9u} {N:pages freed}\n",
1089 sum.v_tfree);
1090 xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n",
1091 sum.v_dfree);
1092 xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n",
1093 sum.v_pfree);
1094 xo_emit("{:active-pages/%9u} {N:pages active}\n",
1095 sum.v_active_count);
1096 xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n",
1097 sum.v_inactive_count);
1098 xo_emit("{:vm-cache/%9u} {N:pages in VM cache}\n",
1099 sum.v_cache_count);
1100 xo_emit("{:wired-pages/%9u} {N:pages wired down}\n",
1101 sum.v_wire_count);
1102 xo_emit("{:free-pages/%9u} {N:pages free}\n",
1103 sum.v_free_count);
1104 xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size);
1105 if (kd != NULL) {
1106 kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats));
1107 } else {
1108 size_t size = sizeof(lnchstats);
1109 mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0);
1110 if (size != sizeof(lnchstats))
1111 xo_errx(1, "vfs.cache.nchstats size mismatch");
1112 }
1113 nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits +
1114 lnchstats.ncs_badhits + lnchstats.ncs_falsehits +
1115 lnchstats.ncs_miss + lnchstats.ncs_long;
1116 xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n",
1117 nchtotal);
1118 xo_emit("{P:/%9s} {N:cache hits} "
1119 "({:positive-cache-hits/%ld}% pos + "
1120 "{:negative-cache-hits/%ld}% {N:neg}) "
1121 "system {:cache-hit-percent/%ld}% per-directory\n",
1122 "", PCT(lnchstats.ncs_goodhits, nchtotal),
1123 PCT(lnchstats.ncs_neghits, nchtotal),
1124 PCT(lnchstats.ncs_pass2, nchtotal));
1125 xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, "
1126 "{L:falsehits} {:false-hits/%ld}%, "
1127 "{L:toolong} {:too-long/%ld}%\n", "",
1128 PCT(lnchstats.ncs_badhits, nchtotal),
1129 PCT(lnchstats.ncs_falsehits, nchtotal),
1130 PCT(lnchstats.ncs_long, nchtotal));
1131 xo_close_container("summary-statistics");
1132 }
1133
1134 static void
1135 doforkst(void)
1136 {
1137 fill_vmmeter(&sum);
1138 xo_open_container("fork-statistics");
1139 xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, "
1140 "{L:average} {:fork-average/%.2f}\n",
1141 sum.v_forks, sum.v_forkpages,
1142 sum.v_forks == 0 ? 0.0 :
1143 (double)sum.v_forkpages / sum.v_forks);
1144 xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, "
1145 "{L:average} {:vfork-average/%.2f}\n",
1146 sum.v_vforks, sum.v_vforkpages,
1147 sum.v_vforks == 0 ? 0.0 :
1148 (double)sum.v_vforkpages / sum.v_vforks);
1149 xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, "
1150 "{L:average} {:rfork-average/%.2f}\n",
1151 sum.v_rforks, sum.v_rforkpages,
1152 sum.v_rforks == 0 ? 0.0 :
1153 (double)sum.v_rforkpages / sum.v_rforks);
1154 xo_close_container("fork-statistics");
1155 }
1156
1157 static void
1158 devstats(void)
1159 {
1160 int dn, state;
1161 long double transfers_per_second;
1162 long double busy_seconds;
1163 long tmp;
1164
1165 for (state = 0; state < CPUSTATES; ++state) {
1166 tmp = cur.cp_time[state];
1167 cur.cp_time[state] -= last.cp_time[state];
1168 last.cp_time[state] = tmp;
1169 }
1170
1171 busy_seconds = cur.snap_time - last.snap_time;
1172
1173 xo_open_list("device");
1174 for (dn = 0; dn < num_devices; dn++) {
1175 int di;
1176
1177 if ((dev_select[dn].selected == 0)
1178 || (dev_select[dn].selected > maxshowdevs))
1179 continue;
1180
1181 di = dev_select[dn].position;
1182
1183 if (devstat_compute_statistics(&cur.dinfo->devices[di],
1184 &last.dinfo->devices[di], busy_seconds,
1185 DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
1186 DSM_NONE) != 0)
1187 xo_errx(1, "%s", devstat_errbuf);
1188
1189 xo_open_instance("device");
1190 xo_emit("{ekq:name/%c%c%d}{:transfers/%3.0Lf} ",
1191 dev_select[dn].device_name[0],
1192 dev_select[dn].device_name[1],
1193 dev_select[dn].unit_number,
1194 transfers_per_second);
1195 xo_close_instance("device");
1196 }
1197 xo_close_list("device");
1198 }
1199
1200 static void
1201 percent(const char *name, double pct, int *over)
1202 {
1203 char buf[10];
1204 char fmt[128];
1205 int l;
1206
1207 snprintf(fmt, sizeof(fmt), " {:%s/%%*s}", name);
1208 l = snprintf(buf, sizeof(buf), "%.0f", pct);
1209 if (l == 1 && *over) {
1210 xo_emit(fmt, 1, buf);
1211 (*over)--;
1212 } else
1213 xo_emit(fmt, 2, buf);
1214 if (l > 2)
1215 (*over)++;
1216 }
1217
1218 static void
1219 cpustats(void)
1220 {
1221 int state, over;
1222 double lpct, total;
1223
1224 total = 0;
1225 for (state = 0; state < CPUSTATES; ++state)
1226 total += cur.cp_time[state];
1227 if (total)
1228 lpct = 100.0 / total;
1229 else
1230 lpct = 0.0;
1231 over = 0;
1232 xo_open_container("cpu-statistics");
1233 percent("user", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * lpct, &over);
1234 percent("system", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * lpct, &over);
1235 percent("idle", cur.cp_time[CP_IDLE] * lpct, &over);
1236 xo_close_container("cpu-statistics");
1237 }
1238
1239 static void
1240 pcpustats(int ncpus, u_long cpumask, int maxid)
1241 {
1242 int state, i;
1243 double lpct, total;
1244 long tmp;
1245 int over;
1246
1247 /* devstats does this for cp_time */
1248 for (i = 0; i <= maxid; i++) {
1249 if ((cpumask & (1ul << i)) == 0)
1250 continue;
1251 for (state = 0; state < CPUSTATES; ++state) {
1252 tmp = cur_cp_times[i * CPUSTATES + state];
1253 cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i *
1254 CPUSTATES + state];
1255 last_cp_times[i * CPUSTATES + state] = tmp;
1256 }
1257 }
1258
1259 over = 0;
1260 xo_open_list("cpu");
1261 for (i = 0; i <= maxid; i++) {
1262 if ((cpumask & (1ul << i)) == 0)
1263 continue;
1264 xo_open_instance("cpu");
1265 xo_emit("{ke:name/%d}", i);
1266 total = 0;
1267 for (state = 0; state < CPUSTATES; ++state)
1268 total += cur_cp_times[i * CPUSTATES + state];
1269 if (total)
1270 lpct = 100.0 / total;
1271 else
1272 lpct = 0.0;
1273 percent("user", (cur_cp_times[i * CPUSTATES + CP_USER] +
1274 cur_cp_times[i * CPUSTATES + CP_NICE]) * lpct, &over);
1275 percent("system", (cur_cp_times[i * CPUSTATES + CP_SYS] +
1276 cur_cp_times[i * CPUSTATES + CP_INTR]) * lpct, &over);
1277 percent("idle", cur_cp_times[i * CPUSTATES + CP_IDLE] * lpct,
1278 &over);
1279 xo_close_instance("cpu");
1280 }
1281 xo_close_list("cpu");
1282 }
1283
1284 static unsigned int
1285 read_intrcnts(unsigned long **intrcnts)
1286 {
1287 size_t intrcntlen;
1288
1289 if (kd != NULL) {
1290 kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen));
1291 if ((*intrcnts = malloc(intrcntlen)) == NULL)
1292 err(1, "malloc()");
1293 kread(X_INTRCNT, *intrcnts, intrcntlen);
1294 } else {
1295 for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) {
1296 *intrcnts = reallocf(*intrcnts, intrcntlen);
1297 if (*intrcnts == NULL)
1298 err(1, "reallocf()");
1299 if (mysysctl("hw.intrcnt",
1300 *intrcnts, &intrcntlen, NULL, 0) == 0)
1301 break;
1302 }
1303 }
1304
1305 return (intrcntlen / sizeof(unsigned long));
1306 }
1307
1308 static void
1309 print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts,
1310 char *intrnames, unsigned int nintr,
1311 size_t istrnamlen, long long period_ms)
1312 {
1313 unsigned long *intrcnt, *old_intrcnt;
1314 uint64_t inttotal, old_inttotal, total_count, total_rate;
1315 char* intrname;
1316 unsigned int i;
1317
1318 inttotal = 0;
1319 old_inttotal = 0;
1320 intrname = intrnames;
1321 xo_open_list("interrupt");
1322 for (i = 0, intrcnt=intrcnts, old_intrcnt=old_intrcnts; i < nintr; i++) {
1323 if (intrname[0] != '\0' && (*intrcnt != 0 || aflag)) {
1324 unsigned long count, rate;
1325
1326 count = *intrcnt - *old_intrcnt;
1327 rate = (count * 1000 + period_ms / 2) / period_ms;
1328 xo_open_instance("interrupt");
1329 xo_emit("{d:name/%-*s}{ket:name/%s} "
1330 "{:total/%20lu} {:rate/%10lu}\n",
1331 (int)istrnamlen, intrname,
1332 intrname, count, rate);
1333 xo_close_instance("interrupt");
1334 }
1335 intrname += strlen(intrname) + 1;
1336 inttotal += *intrcnt++;
1337 old_inttotal += *old_intrcnt++;
1338 }
1339 total_count = inttotal - old_inttotal;
1340 total_rate = (total_count * 1000 + period_ms / 2) / period_ms;
1341 xo_close_list("interrupt");
1342 xo_emit("{L:/%-*s} {:total-interrupts/%20" PRIu64 "} "
1343 "{:total-rate/%10" PRIu64 "}\n", (int)istrnamlen,
1344 "Total", total_count, total_rate);
1345 }
1346
1347 static void
1348 dointr(unsigned int interval, int reps)
1349 {
1350 unsigned long *intrcnts;
1351 long long uptime, period_ms;
1352 unsigned long *old_intrcnts = NULL;
1353 size_t clen, inamlen, istrnamlen;
1354 char *intrnames, *intrname;
1355
1356 uptime = getuptime();
1357
1358 /* Get the names of each interrupt source */
1359 if (kd != NULL) {
1360 kread(X_SINTRNAMES, &inamlen, sizeof(inamlen));
1361 if ((intrnames = malloc(inamlen)) == NULL)
1362 xo_err(1, "malloc()");
1363 kread(X_INTRNAMES, intrnames, inamlen);
1364 } else {
1365 for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) {
1366 if ((intrnames = reallocf(intrnames, inamlen)) == NULL)
1367 xo_err(1, "reallocf()");
1368 if (mysysctl("hw.intrnames",
1369 intrnames, &inamlen, NULL, 0) == 0)
1370 break;
1371 }
1372 }
1373
1374 /* Determine the length of the longest interrupt name */
1375 intrname = intrnames;
1376 istrnamlen = strlen("interrupt");
1377 while(*intrname != '\0') {
1378 clen = strlen(intrname);
1379 if (clen > istrnamlen)
1380 istrnamlen = clen;
1381 intrname += strlen(intrname) + 1;
1382 }
1383 xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n",
1384 (int)istrnamlen, "interrupt", "total", "rate");
1385
1386 /*
1387 * Loop reps times printing differential interrupt counts. If reps is
1388 * zero, then run just once, printing total counts
1389 */
1390 xo_open_container("interrupt-statistics");
1391
1392 period_ms = uptime / 1000000;
1393 while(1) {
1394 unsigned int nintr;
1395 long long old_uptime;
1396
1397 nintr = read_intrcnts(&intrcnts);
1398 /*
1399 * Initialize old_intrcnts to 0 for the first pass, so
1400 * print_intrcnts will print total interrupts since boot
1401 */
1402 if (old_intrcnts == NULL) {
1403 old_intrcnts = calloc(nintr, sizeof(unsigned long));
1404 if (old_intrcnts == NULL)
1405 xo_err(1, "calloc()");
1406 }
1407
1408 print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr,
1409 istrnamlen, period_ms);
1410 xo_flush();
1411
1412 free(old_intrcnts);
1413 old_intrcnts = intrcnts;
1414 if (reps >= 0 && --reps <= 0)
1415 break;
1416 usleep(interval * 1000);
1417 old_uptime = uptime;
1418 uptime = getuptime();
1419 period_ms = (uptime - old_uptime) / 1000000;
1420 }
1421
1422 xo_close_container("interrupt-statistics");
1423 }
1424
1425 static void
1426 domemstat_malloc(void)
1427 {
1428 struct memory_type_list *mtlp;
1429 struct memory_type *mtp;
1430 int error, first, i;
1431
1432 mtlp = memstat_mtl_alloc();
1433 if (mtlp == NULL) {
1434 xo_warn("memstat_mtl_alloc");
1435 return;
1436 }
1437 if (kd == NULL) {
1438 if (memstat_sysctl_malloc(mtlp, 0) < 0) {
1439 xo_warnx("memstat_sysctl_malloc: %s",
1440 memstat_strerror(memstat_mtl_geterror(mtlp)));
1441 return;
1442 }
1443 } else {
1444 if (memstat_kvm_malloc(mtlp, kd) < 0) {
1445 error = memstat_mtl_geterror(mtlp);
1446 if (error == MEMSTAT_ERROR_KVM)
1447 xo_warnx("memstat_kvm_malloc: %s",
1448 kvm_geterr(kd));
1449 else
1450 xo_warnx("memstat_kvm_malloc: %s",
1451 memstat_strerror(error));
1452 }
1453 }
1454 xo_open_container("malloc-statistics");
1455 xo_emit("{T:/%13s} {T:/%5s} {T:/%6s} {T:/%7s} {T:/%8s} {T:Size(s)}\n",
1456 "Type", "InUse", "MemUse", "HighUse", "Requests");
1457 xo_open_list("memory");
1458 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1459 mtp = memstat_mtl_next(mtp)) {
1460 if (memstat_get_numallocs(mtp) == 0 &&
1461 memstat_get_count(mtp) == 0)
1462 continue;
1463 xo_open_instance("memory");
1464 xo_emit("{k:type/%13s/%s} {:in-use/%5" PRIu64 "} "
1465 "{:memory-use/%5" PRIu64 "}{U:K} {:high-use/%7s} "
1466 "{:requests/%8" PRIu64 "} ",
1467 memstat_get_name(mtp), memstat_get_count(mtp),
1468 (memstat_get_bytes(mtp) + 1023) / 1024, "-",
1469 memstat_get_numallocs(mtp));
1470 first = 1;
1471 xo_open_list("size");
1472 for (i = 0; i < 32; i++) {
1473 if (memstat_get_sizemask(mtp) & (1 << i)) {
1474 if (!first)
1475 xo_emit(",");
1476 xo_emit("{l:size/%d}", 1 << (i + 4));
1477 first = 0;
1478 }
1479 }
1480 xo_close_list("size");
1481 xo_close_instance("memory");
1482 xo_emit("\n");
1483 }
1484 xo_close_list("memory");
1485 xo_close_container("malloc-statistics");
1486 memstat_mtl_free(mtlp);
1487 }
1488
1489 static void
1490 domemstat_zone(void)
1491 {
1492 struct memory_type_list *mtlp;
1493 struct memory_type *mtp;
1494 char name[MEMTYPE_MAXNAME + 1];
1495 int error;
1496
1497 mtlp = memstat_mtl_alloc();
1498 if (mtlp == NULL) {
1499 xo_warn("memstat_mtl_alloc");
1500 return;
1501 }
1502 if (kd == NULL) {
1503 if (memstat_sysctl_uma(mtlp, 0) < 0) {
1504 xo_warnx("memstat_sysctl_uma: %s",
1505 memstat_strerror(memstat_mtl_geterror(mtlp)));
1506 return;
1507 }
1508 } else {
1509 if (memstat_kvm_uma(mtlp, kd) < 0) {
1510 error = memstat_mtl_geterror(mtlp);
1511 if (error == MEMSTAT_ERROR_KVM)
1512 xo_warnx("memstat_kvm_uma: %s",
1513 kvm_geterr(kd));
1514 else
1515 xo_warnx("memstat_kvm_uma: %s",
1516 memstat_strerror(error));
1517 }
1518 }
1519 xo_open_container("memory-zone-statistics");
1520 xo_emit("{T:/%-20s} {T:/%6s} {T:/%6s} {T:/%8s} {T:/%8s} {T:/%8s} "
1521 "{T:/%4s} {T:/%4s}\n\n", "ITEM", "SIZE",
1522 "LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP");
1523 xo_open_list("zone");
1524 for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
1525 mtp = memstat_mtl_next(mtp)) {
1526 strlcpy(name, memstat_get_name(mtp), MEMTYPE_MAXNAME);
1527 strcat(name, ":");
1528 xo_open_instance("zone");
1529 xo_emit("{d:name/%-20s}{ke:name/%s} {:size/%6" PRIu64 "}, "
1530 "{:limit/%6" PRIu64 "},{:used/%8" PRIu64 "},"
1531 "{:free/%8" PRIu64 "},{:requests/%8" PRIu64 "},"
1532 "{:fail/%4" PRIu64 "},{:sleep/%4" PRIu64 "}\n", name,
1533 memstat_get_name(mtp),
1534 memstat_get_size(mtp), memstat_get_countlimit(mtp),
1535 memstat_get_count(mtp), memstat_get_free(mtp),
1536 memstat_get_numallocs(mtp), memstat_get_failures(mtp),
1537 memstat_get_sleeps(mtp));
1538 xo_close_instance("zone");
1539 }
1540 memstat_mtl_free(mtlp);
1541 xo_close_list("zone");
1542 xo_close_container("memory-zone-statistics");
1543 xo_emit("\n");
1544 }
1545
1546 static void
1547 display_object(struct kinfo_vmobject *kvo)
1548 {
1549 const char *str;
1550
1551 xo_open_instance("object");
1552 xo_emit("{:resident/%5jd} ", (uintmax_t)kvo->kvo_resident);
1553 xo_emit("{:active/%5jd} ", (uintmax_t)kvo->kvo_active);
1554 xo_emit("{:inactive/%5jd} ", (uintmax_t)kvo->kvo_inactive);
1555 xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count);
1556 xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count);
1557 switch (kvo->kvo_memattr) {
1558 #ifdef VM_MEMATTR_UNCACHEABLE
1559 case VM_MEMATTR_UNCACHEABLE:
1560 str = "UC";
1561 break;
1562 #endif
1563 #ifdef VM_MEMATTR_WRITE_COMBINING
1564 case VM_MEMATTR_WRITE_COMBINING:
1565 str = "WC";
1566 break;
1567 #endif
1568 #ifdef VM_MEMATTR_WRITE_THROUGH
1569 case VM_MEMATTR_WRITE_THROUGH:
1570 str = "WT";
1571 break;
1572 #endif
1573 #ifdef VM_MEMATTR_WRITE_PROTECTED
1574 case VM_MEMATTR_WRITE_PROTECTED:
1575 str = "WP";
1576 break;
1577 #endif
1578 #ifdef VM_MEMATTR_WRITE_BACK
1579 case VM_MEMATTR_WRITE_BACK:
1580 str = "WB";
1581 break;
1582 #endif
1583 #ifdef VM_MEMATTR_WEAK_UNCACHEABLE
1584 case VM_MEMATTR_WEAK_UNCACHEABLE:
1585 str = "UC-";
1586 break;
1587 #endif
1588 #ifdef VM_MEMATTR_WB_WA
1589 case VM_MEMATTR_WB_WA:
1590 str = "WB";
1591 break;
1592 #endif
1593 #ifdef VM_MEMATTR_NOCACHE
1594 case VM_MEMATTR_NOCACHE:
1595 str = "NC";
1596 break;
1597 #endif
1598 #ifdef VM_MEMATTR_DEVICE
1599 case VM_MEMATTR_DEVICE:
1600 str = "DEV";
1601 break;
1602 #endif
1603 #ifdef VM_MEMATTR_CACHEABLE
1604 case VM_MEMATTR_CACHEABLE:
1605 str = "C";
1606 break;
1607 #endif
1608 #ifdef VM_MEMATTR_PREFETCHABLE
1609 case VM_MEMATTR_PREFETCHABLE:
1610 str = "PRE";
1611 break;
1612 #endif
1613 default:
1614 str = "??";
1615 break;
1616 }
1617 xo_emit("{:attribute/%-3s} ", str);
1618 switch (kvo->kvo_type) {
1619 case KVME_TYPE_NONE:
1620 str = "--";
1621 break;
1622 case KVME_TYPE_DEFAULT:
1623 str = "df";
1624 break;
1625 case KVME_TYPE_VNODE:
1626 str = "vn";
1627 break;
1628 case KVME_TYPE_SWAP:
1629 str = "sw";
1630 break;
1631 case KVME_TYPE_DEVICE:
1632 str = "dv";
1633 break;
1634 case KVME_TYPE_PHYS:
1635 str = "ph";
1636 break;
1637 case KVME_TYPE_DEAD:
1638 str = "dd";
1639 break;
1640 case KVME_TYPE_SG:
1641 str = "sg";
1642 break;
1643 case KVME_TYPE_UNKNOWN:
1644 default:
1645 str = "??";
1646 break;
1647 }
1648 xo_emit("{:type/%-2s} ", str);
1649 xo_emit("{:path/%-s}\n", kvo->kvo_path);
1650 xo_close_instance("object");
1651 }
1652
1653 static void
1654 doobjstat(void)
1655 {
1656 struct kinfo_vmobject *kvo;
1657 int cnt, i;
1658
1659 kvo = kinfo_getvmobject(&cnt);
1660 if (kvo == NULL) {
1661 xo_warn("Failed to fetch VM object list");
1662 return;
1663 }
1664 xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:REF/%3s} {T:SHD/%3s} "
1665 "{T:CM/%3s} {T:TP/%2s} {T:PATH/%s}\n");
1666 xo_open_list("object");
1667 for (i = 0; i < cnt; i++)
1668 display_object(&kvo[i]);
1669 free(kvo);
1670 xo_close_list("object");
1671 }
1672
1673 /*
1674 * kread reads something from the kernel, given its nlist index.
1675 */
1676 static void
1677 kreado(int nlx, void *addr, size_t size, size_t offset)
1678 {
1679 const char *sym;
1680
1681 if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1682 sym = namelist[nlx].n_name;
1683 if (*sym == '_')
1684 ++sym;
1685 xo_errx(1, "symbol %s not defined", sym);
1686 }
1687 if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr,
1688 size) != size) {
1689 sym = namelist[nlx].n_name;
1690 if (*sym == '_')
1691 ++sym;
1692 xo_errx(1, "%s: %s", sym, kvm_geterr(kd));
1693 }
1694 }
1695
1696 static void
1697 kread(int nlx, void *addr, size_t size)
1698 {
1699 kreado(nlx, addr, size, 0);
1700 }
1701
1702 static char *
1703 kgetstr(const char *strp)
1704 {
1705 int n = 0, size = 1;
1706 char *ret = NULL;
1707
1708 do {
1709 if (size == n + 1) {
1710 ret = realloc(ret, size);
1711 if (ret == NULL)
1712 xo_err(1, "%s: realloc", __func__);
1713 size *= 2;
1714 }
1715 if (kvm_read(kd, (u_long)strp + n, &ret[n], 1) != 1)
1716 xo_errx(1, "%s: %s", __func__, kvm_geterr(kd));
1717 } while (ret[n++] != '\0');
1718 return (ret);
1719 }
1720
1721 static void
1722 usage(void)
1723 {
1724 xo_error("%s%s",
1725 "usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n",
1726 " [-p type,if,pass] [-w wait] [disks] [wait [count]]\n");
1727 xo_finish();
1728 exit(1);
1729 }
FreeBSD src