Commit | Line | Data |
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984263bc MD |
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 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
1de703da MD |
32 | * |
33 | * @(#) Copyright (c) 1980, 1986, 1991, 1993 The Regents of the University of California. All rights reserved. | |
34 | * @(#)vmstat.c 8.1 (Berkeley) 6/6/93 | |
35 | * $FreeBSD: src/usr.bin/vmstat/vmstat.c,v 1.38.2.4 2001/07/31 19:52:41 tmm Exp $ | |
5be6fe29 | 36 | * $DragonFly: src/usr.bin/vmstat/vmstat.c,v 1.23 2008/02/19 18:19:15 thomas Exp $ |
984263bc MD |
37 | */ |
38 | ||
e0ecab34 | 39 | #include <sys/user.h> |
984263bc MD |
40 | #include <sys/param.h> |
41 | #include <sys/time.h> | |
984263bc MD |
42 | #include <sys/uio.h> |
43 | #include <sys/namei.h> | |
44 | #include <sys/malloc.h> | |
45 | #include <sys/signal.h> | |
46 | #include <sys/fcntl.h> | |
47 | #include <sys/ioctl.h> | |
48 | #include <sys/sysctl.h> | |
49 | #include <sys/vmmeter.h> | |
50 | ||
51 | #include <vm/vm_param.h> | |
52 | ||
53 | #include <ctype.h> | |
54 | #include <err.h> | |
55 | #include <errno.h> | |
f5d21610 | 56 | #include <kinfo.h> |
984263bc MD |
57 | #include <kvm.h> |
58 | #include <limits.h> | |
59 | #include <nlist.h> | |
60 | #include <paths.h> | |
61 | #include <stdio.h> | |
62 | #include <stdlib.h> | |
63 | #include <string.h> | |
64 | #include <sysexits.h> | |
65 | #include <time.h> | |
66 | #include <unistd.h> | |
67 | #include <devstat.h> | |
68 | ||
5a190a5c | 69 | static struct nlist namelist[] = { |
f5d21610 | 70 | #define X_BOOTTIME 0 |
2c9bc808 | 71 | { "_boottime", 0, 0, 0, 0 }, |
f5d21610 | 72 | #define X_NCHSTATS 1 |
2c9bc808 | 73 | { "_nchstats", 0, 0, 0, 0 }, |
4dfb4f32 | 74 | #define X_KMEMSTATISTICS 2 |
2c9bc808 | 75 | { "_kmemstatistics", 0, 0, 0, 0 }, |
4dfb4f32 | 76 | #define X_ZLIST 3 |
2c9bc808 | 77 | { "_zlist", 0, 0, 0, 0 }, |
984263bc | 78 | #ifdef notyet |
4dfb4f32 | 79 | #define X_DEFICIT 4 |
2c9bc808 | 80 | { "_deficit", 0, 0, 0, 0 }, |
4dfb4f32 | 81 | #define X_FORKSTAT 5 |
2c9bc808 | 82 | { "_forkstat", 0, 0, 0, 0 }, |
4dfb4f32 | 83 | #define X_REC 6 |
2c9bc808 | 84 | { "_rectime", 0, 0, 0, 0 }, |
4dfb4f32 | 85 | #define X_PGIN 7 |
2c9bc808 | 86 | { "_pgintime", 0, 0, 0, 0 }, |
4dfb4f32 | 87 | #define X_XSTATS 8 |
2c9bc808 | 88 | { "_xstats", 0, 0, 0, 0 }, |
4dfb4f32 | 89 | #define X_END 9 |
984263bc | 90 | #else |
4dfb4f32 | 91 | #define X_END 4 |
984263bc | 92 | #endif |
2c9bc808 | 93 | { "", 0, 0, 0, 0 }, |
984263bc MD |
94 | }; |
95 | ||
96 | struct statinfo cur, last; | |
97 | int num_devices, maxshowdevs; | |
98 | long generation; | |
99 | struct device_selection *dev_select; | |
100 | int num_selected; | |
101 | struct devstat_match *matches; | |
102 | int num_matches = 0; | |
103 | int num_devices_specified, num_selections; | |
104 | long select_generation; | |
105 | char **specified_devices; | |
106 | devstat_select_mode select_mode; | |
107 | ||
393dfc63 MD |
108 | struct vmmeter vmm, ovmm; |
109 | struct vmstats vms, ovms; | |
984263bc MD |
110 | |
111 | int winlines = 20; | |
112 | int nflag = 0; | |
bba17725 | 113 | int verbose = 0; |
984263bc MD |
114 | |
115 | kvm_t *kd; | |
116 | ||
f5d21610 JS |
117 | struct kinfo_cputime cp_time, old_cp_time, diff_cp_time; |
118 | ||
984263bc MD |
119 | #define FORKSTAT 0x01 |
120 | #define INTRSTAT 0x02 | |
121 | #define MEMSTAT 0x04 | |
122 | #define SUMSTAT 0x08 | |
123 | #define TIMESTAT 0x10 | |
124 | #define VMSTAT 0x20 | |
125 | #define ZMEMSTAT 0x40 | |
126 | ||
3c6b4125 JS |
127 | static void cpustats(void); |
128 | static void dointr(void); | |
129 | static void domem(void); | |
130 | static void dosum(void); | |
131 | static void dozmem(void); | |
2c9bc808 SW |
132 | static void dovmstat(u_int, int); |
133 | static void kread(int, void *, size_t); | |
3c6b4125 | 134 | static void usage(void); |
2c9bc808 | 135 | static char **getdrivedata(char **); |
3c6b4125 | 136 | static long getuptime(void); |
2c9bc808 SW |
137 | static void needhdr(int); |
138 | static long pct(long, long); | |
3c6b4125 | 139 | |
984263bc | 140 | #ifdef notyet |
3c6b4125 JS |
141 | static void dotimes(void); /* Not implemented */ |
142 | static void doforkst(void); | |
984263bc | 143 | #endif |
3c6b4125 JS |
144 | static void printhdr(void); |
145 | static void devstats(void); | |
984263bc MD |
146 | |
147 | int | |
2e134091 | 148 | main(int argc, char **argv) |
984263bc | 149 | { |
2e134091 | 150 | int c, todo; |
29758f2e | 151 | u_int interval; /* milliseconds */ |
984263bc MD |
152 | int reps; |
153 | char *memf, *nlistf; | |
154 | char errbuf[_POSIX2_LINE_MAX]; | |
155 | ||
156 | memf = nlistf = NULL; | |
157 | interval = reps = todo = 0; | |
158 | maxshowdevs = 2; | |
bba17725 | 159 | while ((c = getopt(argc, argv, "c:fiM:mN:n:p:stvw:z")) != -1) { |
984263bc MD |
160 | switch (c) { |
161 | case 'c': | |
162 | reps = atoi(optarg); | |
163 | break; | |
164 | case 'f': | |
165 | #ifdef notyet | |
166 | todo |= FORKSTAT; | |
167 | #else | |
168 | errx(EX_USAGE, "sorry, -f is not (re)implemented yet"); | |
169 | #endif | |
170 | break; | |
171 | case 'i': | |
172 | todo |= INTRSTAT; | |
173 | break; | |
174 | case 'M': | |
175 | memf = optarg; | |
176 | break; | |
177 | case 'm': | |
178 | todo |= MEMSTAT; | |
179 | break; | |
180 | case 'N': | |
181 | nlistf = optarg; | |
182 | break; | |
183 | case 'n': | |
184 | nflag = 1; | |
185 | maxshowdevs = atoi(optarg); | |
186 | if (maxshowdevs < 0) | |
187 | errx(1, "number of devices %d is < 0", | |
188 | maxshowdevs); | |
189 | break; | |
190 | case 'p': | |
191 | if (buildmatch(optarg, &matches, &num_matches) != 0) | |
192 | errx(1, "%s", devstat_errbuf); | |
193 | break; | |
194 | case 's': | |
195 | todo |= SUMSTAT; | |
196 | break; | |
197 | case 't': | |
198 | #ifdef notyet | |
199 | todo |= TIMESTAT; | |
200 | #else | |
201 | errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); | |
202 | #endif | |
203 | break; | |
bba17725 YT |
204 | case 'v': |
205 | ++verbose; | |
206 | break; | |
984263bc | 207 | case 'w': |
29758f2e | 208 | interval = (u_int)(strtod(optarg, NULL) * 1000.0); |
984263bc MD |
209 | break; |
210 | case 'z': | |
211 | todo |= ZMEMSTAT; | |
212 | break; | |
984263bc MD |
213 | default: |
214 | usage(); | |
215 | } | |
216 | } | |
217 | argc -= optind; | |
218 | argv += optind; | |
219 | ||
220 | if (todo == 0) | |
221 | todo = VMSTAT; | |
222 | ||
223 | /* | |
224 | * Discard setgid privileges if not the running kernel so that bad | |
225 | * guys can't print interesting stuff from kernel memory. | |
226 | */ | |
227 | if (nlistf != NULL || memf != NULL) | |
228 | setgid(getgid()); | |
229 | ||
230 | kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); | |
231 | if (kd == 0) | |
232 | errx(1, "kvm_openfiles: %s", errbuf); | |
233 | ||
234 | if ((c = kvm_nlist(kd, namelist)) != 0) { | |
235 | if (c > 0) { | |
236 | warnx("undefined symbols:"); | |
3c6b4125 | 237 | for (c = 0; c < (int)__arysize(namelist); c++) |
984263bc MD |
238 | if (namelist[c].n_type == 0) |
239 | fprintf(stderr, " %s", | |
240 | namelist[c].n_name); | |
2e134091 | 241 | fputc('\n', stderr); |
984263bc MD |
242 | } else |
243 | warnx("kvm_nlist: %s", kvm_geterr(kd)); | |
244 | exit(1); | |
245 | } | |
246 | ||
247 | if (todo & VMSTAT) { | |
984263bc MD |
248 | struct winsize winsize; |
249 | ||
250 | /* | |
251 | * Make sure that the userland devstat version matches the | |
252 | * kernel devstat version. If not, exit and print a | |
253 | * message informing the user of his mistake. | |
254 | */ | |
255 | if (checkversion() < 0) | |
256 | errx(1, "%s", devstat_errbuf); | |
257 | ||
258 | ||
259 | argv = getdrivedata(argv); | |
260 | winsize.ws_row = 0; | |
2e134091 | 261 | ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); |
984263bc MD |
262 | if (winsize.ws_row > 0) |
263 | winlines = winsize.ws_row; | |
264 | ||
265 | } | |
266 | ||
267 | #define BACKWARD_COMPATIBILITY | |
268 | #ifdef BACKWARD_COMPATIBILITY | |
269 | if (*argv) { | |
29758f2e | 270 | interval = (u_int)(strtod(*argv, NULL) * 1000.0); |
984263bc MD |
271 | if (*++argv) |
272 | reps = atoi(*argv); | |
273 | } | |
274 | #endif | |
275 | ||
276 | if (interval) { | |
277 | if (!reps) | |
278 | reps = -1; | |
29758f2e MD |
279 | } else if (reps) { |
280 | interval = 1000; | |
281 | } | |
984263bc MD |
282 | |
283 | #ifdef notyet | |
284 | if (todo & FORKSTAT) | |
285 | doforkst(); | |
286 | #endif | |
287 | if (todo & MEMSTAT) | |
288 | domem(); | |
289 | if (todo & ZMEMSTAT) | |
290 | dozmem(); | |
291 | if (todo & SUMSTAT) | |
292 | dosum(); | |
293 | #ifdef notyet | |
294 | if (todo & TIMESTAT) | |
295 | dotimes(); | |
296 | #endif | |
297 | if (todo & INTRSTAT) | |
298 | dointr(); | |
299 | if (todo & VMSTAT) | |
300 | dovmstat(interval, reps); | |
301 | exit(0); | |
302 | } | |
303 | ||
3c6b4125 | 304 | static char ** |
1d1731fa | 305 | getdrivedata(char **argv) |
984263bc MD |
306 | { |
307 | if ((num_devices = getnumdevs()) < 0) | |
308 | errx(1, "%s", devstat_errbuf); | |
309 | ||
310 | cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); | |
311 | last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); | |
312 | bzero(cur.dinfo, sizeof(struct devinfo)); | |
313 | bzero(last.dinfo, sizeof(struct devinfo)); | |
314 | ||
315 | if (getdevs(&cur) == -1) | |
316 | errx(1, "%s", devstat_errbuf); | |
317 | ||
318 | num_devices = cur.dinfo->numdevs; | |
319 | generation = cur.dinfo->generation; | |
320 | ||
321 | specified_devices = (char **)malloc(sizeof(char *)); | |
322 | for (num_devices_specified = 0; *argv; ++argv) { | |
323 | if (isdigit(**argv)) | |
324 | break; | |
325 | num_devices_specified++; | |
326 | specified_devices = (char **)realloc(specified_devices, | |
327 | sizeof(char *) * | |
328 | num_devices_specified); | |
329 | specified_devices[num_devices_specified - 1] = *argv; | |
330 | } | |
331 | dev_select = NULL; | |
332 | ||
333 | if (nflag == 0 && maxshowdevs < num_devices_specified) | |
334 | maxshowdevs = num_devices_specified; | |
335 | ||
336 | /* | |
337 | * People are generally only interested in disk statistics when | |
338 | * they're running vmstat. So, that's what we're going to give | |
339 | * them if they don't specify anything by default. We'll also give | |
340 | * them any other random devices in the system so that we get to | |
341 | * maxshowdevs devices, if that many devices exist. If the user | |
342 | * specifies devices on the command line, either through a pattern | |
343 | * match or by naming them explicitly, we will give the user only | |
344 | * those devices. | |
345 | */ | |
346 | if ((num_devices_specified == 0) && (num_matches == 0)) { | |
347 | if (buildmatch("da", &matches, &num_matches) != 0) | |
348 | errx(1, "%s", devstat_errbuf); | |
349 | ||
350 | select_mode = DS_SELECT_ADD; | |
351 | } else | |
352 | select_mode = DS_SELECT_ONLY; | |
353 | ||
354 | /* | |
355 | * At this point, selectdevs will almost surely indicate that the | |
356 | * device list has changed, so we don't look for return values of 0 | |
357 | * or 1. If we get back -1, though, there is an error. | |
358 | */ | |
359 | if (selectdevs(&dev_select, &num_selected, &num_selections, | |
360 | &select_generation, generation, cur.dinfo->devices, | |
361 | num_devices, matches, num_matches, specified_devices, | |
362 | num_devices_specified, select_mode, | |
363 | maxshowdevs, 0) == -1) | |
364 | errx(1, "%s", devstat_errbuf); | |
365 | ||
366 | return(argv); | |
367 | } | |
368 | ||
3c6b4125 | 369 | static long |
1d1731fa | 370 | getuptime(void) |
984263bc MD |
371 | { |
372 | static time_t now, boottime; | |
373 | time_t uptime; | |
374 | ||
375 | if (boottime == 0) | |
376 | kread(X_BOOTTIME, &boottime, sizeof(boottime)); | |
2e134091 | 377 | time(&now); |
984263bc MD |
378 | uptime = now - boottime; |
379 | if (uptime <= 0 || uptime > 60*60*24*365*10) | |
380 | errx(1, "time makes no sense; namelist must be wrong"); | |
381 | return(uptime); | |
382 | } | |
383 | ||
f5d21610 | 384 | int hdrcnt; |
984263bc | 385 | |
3c6b4125 | 386 | static void |
1d1731fa | 387 | dovmstat(u_int interval, int reps) |
984263bc MD |
388 | { |
389 | struct vmtotal total; | |
984263bc | 390 | struct devinfo *tmp_dinfo; |
e43bcaac JG |
391 | size_t vmm_size = sizeof(vmm); |
392 | size_t vms_size = sizeof(vms); | |
393 | size_t vmt_size = sizeof(total); | |
29758f2e | 394 | int initial = 1; |
984263bc | 395 | |
2e134091 | 396 | signal(SIGCONT, needhdr); |
984263bc | 397 | |
984263bc MD |
398 | for (hdrcnt = 1;;) { |
399 | if (!--hdrcnt) | |
400 | printhdr(); | |
f5d21610 JS |
401 | if (kinfo_get_sched_cputime(&cp_time)) |
402 | err(1, "kinfo_get_sched_cputime"); | |
984263bc MD |
403 | |
404 | tmp_dinfo = last.dinfo; | |
405 | last.dinfo = cur.dinfo; | |
406 | cur.dinfo = tmp_dinfo; | |
407 | last.busy_time = cur.busy_time; | |
408 | ||
409 | /* | |
410 | * Here what we want to do is refresh our device stats. | |
411 | * getdevs() returns 1 when the device list has changed. | |
412 | * If the device list has changed, we want to go through | |
413 | * the selection process again, in case a device that we | |
414 | * were previously displaying has gone away. | |
415 | */ | |
416 | switch (getdevs(&cur)) { | |
417 | case -1: | |
418 | errx(1, "%s", devstat_errbuf); | |
419 | break; | |
420 | case 1: { | |
421 | int retval; | |
422 | ||
423 | num_devices = cur.dinfo->numdevs; | |
424 | generation = cur.dinfo->generation; | |
425 | ||
426 | retval = selectdevs(&dev_select, &num_selected, | |
427 | &num_selections, &select_generation, | |
428 | generation, cur.dinfo->devices, | |
429 | num_devices, matches, num_matches, | |
430 | specified_devices, | |
431 | num_devices_specified, select_mode, | |
432 | maxshowdevs, 0); | |
433 | switch (retval) { | |
434 | case -1: | |
435 | errx(1, "%s", devstat_errbuf); | |
436 | break; | |
437 | case 1: | |
438 | printhdr(); | |
439 | break; | |
440 | default: | |
441 | break; | |
442 | } | |
443 | } | |
444 | default: | |
445 | break; | |
446 | } | |
447 | ||
393dfc63 MD |
448 | if (sysctlbyname("vm.vmstats", &vms, &vms_size, NULL, 0)) { |
449 | perror("sysctlbyname: vm.vmstats"); | |
450 | exit(1); | |
984263bc | 451 | } |
393dfc63 | 452 | if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) { |
5f548a46 | 453 | perror("sysctlbyname: vm.vmmeter"); |
393dfc63 MD |
454 | exit(1); |
455 | } | |
456 | if (sysctlbyname("vm.vmtotal", &total, &vmt_size, NULL, 0)) { | |
457 | perror("sysctlbyname: vm.vmtotal"); | |
458 | exit(1); | |
459 | } | |
7b5a2bb5 | 460 | printf("%2ld %1ld %1ld", |
984263bc | 461 | total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); |
7b5a2bb5 MD |
462 | |
463 | #define vmstat_pgtok(a) \ | |
464 | (intmax_t)(((intmax_t)(a) * vms.v_page_size) >> 10) | |
465 | #define rate(x) \ | |
466 | (intmax_t)(initial ? (x) : ((intmax_t)(x) * 1000 + interval / 2) \ | |
467 | / interval) | |
468 | ||
469 | printf(" %7jd %6jd ", | |
470 | vmstat_pgtok(total.t_avm), | |
471 | vmstat_pgtok(total.t_free)); | |
472 | printf("%4ju ", | |
473 | rate(vmm.v_vm_faults - ovmm.v_vm_faults)); | |
474 | printf("%3ju ", | |
475 | rate(vmm.v_reactivated - ovmm.v_reactivated)); | |
476 | printf("%3ju ", | |
477 | rate(vmm.v_swapin + vmm.v_vnodein - | |
478 | (ovmm.v_swapin + ovmm.v_vnodein))); | |
479 | printf("%3ju ", | |
480 | rate(vmm.v_swapout + vmm.v_vnodeout - | |
481 | (ovmm.v_swapout + ovmm.v_vnodeout))); | |
482 | printf("%3ju ", | |
483 | rate(vmm.v_tfree - ovmm.v_tfree)); | |
484 | printf("%3ju ", | |
485 | rate(vmm.v_pdpages - ovmm.v_pdpages)); | |
984263bc | 486 | devstats(); |
7b5a2bb5 MD |
487 | printf("%4ju %4ju %3ju ", |
488 | rate(vmm.v_intr - ovmm.v_intr), | |
489 | rate(vmm.v_syscall - ovmm.v_syscall), | |
490 | rate(vmm.v_swtch - ovmm.v_swtch)); | |
984263bc | 491 | cpustats(); |
2e134091 LF |
492 | printf("\n"); |
493 | fflush(stdout); | |
984263bc MD |
494 | if (reps >= 0 && --reps <= 0) |
495 | break; | |
393dfc63 | 496 | ovmm = vmm; |
29758f2e MD |
497 | usleep(interval * 1000); |
498 | initial = 0; | |
984263bc MD |
499 | } |
500 | } | |
501 | ||
3c6b4125 | 502 | static void |
1d1731fa | 503 | printhdr(void) |
984263bc MD |
504 | { |
505 | int i, num_shown; | |
506 | ||
507 | num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; | |
2e134091 | 508 | printf(" procs memory page%*s", 19, ""); |
984263bc | 509 | if (num_shown > 1) |
2e134091 | 510 | printf(" disks %*s", num_shown * 4 - 7, ""); |
984263bc | 511 | else if (num_shown == 1) |
2e134091 LF |
512 | printf("disk"); |
513 | printf(" faults cpu\n"); | |
514 | printf(" r b w avm fre flt re pi po fr sr "); | |
984263bc MD |
515 | for (i = 0; i < num_devices; i++) |
516 | if ((dev_select[i].selected) | |
517 | && (dev_select[i].selected <= maxshowdevs)) | |
2e134091 | 518 | printf("%c%c%d ", dev_select[i].device_name[0], |
984263bc MD |
519 | dev_select[i].device_name[1], |
520 | dev_select[i].unit_number); | |
2e134091 | 521 | printf(" in sy cs us sy id\n"); |
984263bc MD |
522 | hdrcnt = winlines - 2; |
523 | } | |
524 | ||
525 | /* | |
526 | * Force a header to be prepended to the next output. | |
527 | */ | |
3c6b4125 JS |
528 | static void |
529 | needhdr(__unused int signo) | |
984263bc MD |
530 | { |
531 | ||
532 | hdrcnt = 1; | |
533 | } | |
534 | ||
3c6b4125 | 535 | static long |
1d1731fa | 536 | pct(long top, long bot) |
984263bc MD |
537 | { |
538 | long ans; | |
539 | ||
540 | if (bot == 0) | |
541 | return(0); | |
542 | ans = (quad_t)top * 100 / bot; | |
543 | return (ans); | |
544 | } | |
545 | ||
546 | #define PCT(top, bot) pct((long)(top), (long)(bot)) | |
547 | ||
3c6b4125 | 548 | static void |
1d1731fa | 549 | dosum(void) |
984263bc | 550 | { |
24e51f36 | 551 | struct nchstats *nch_tmp, nchstats; |
e43bcaac JG |
552 | size_t vms_size = sizeof(vms); |
553 | size_t vmm_size = sizeof(vmm); | |
24e51f36 HP |
554 | int cpucnt; |
555 | u_long nchtotal; | |
27abc816 | 556 | u_long nchpathtotal; |
24e51f36 | 557 | size_t nch_size = sizeof(struct nchstats) * SMP_MAXCPU; |
984263bc | 558 | |
393dfc63 MD |
559 | if (sysctlbyname("vm.vmstats", &vms, &vms_size, NULL, 0)) { |
560 | perror("sysctlbyname: vm.vmstats"); | |
561 | exit(1); | |
562 | } | |
563 | if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) { | |
564 | perror("sysctlbyname: vm.vmstats"); | |
565 | exit(1); | |
24e51f36 | 566 | } |
2e134091 LF |
567 | printf("%9u cpu context switches\n", vmm.v_swtch); |
568 | printf("%9u device interrupts\n", vmm.v_intr); | |
569 | printf("%9u software interrupts\n", vmm.v_soft); | |
570 | printf("%9u traps\n", vmm.v_trap); | |
571 | printf("%9u system calls\n", vmm.v_syscall); | |
572 | printf("%9u kernel threads created\n", vmm.v_kthreads); | |
573 | printf("%9u fork() calls\n", vmm.v_forks); | |
574 | printf("%9u vfork() calls\n", vmm.v_vforks); | |
575 | printf("%9u rfork() calls\n", vmm.v_rforks); | |
576 | printf("%9u exec() calls\n", vmm.v_exec); | |
577 | printf("%9u swap pager pageins\n", vmm.v_swapin); | |
578 | printf("%9u swap pager pages paged in\n", vmm.v_swappgsin); | |
579 | printf("%9u swap pager pageouts\n", vmm.v_swapout); | |
580 | printf("%9u swap pager pages paged out\n", vmm.v_swappgsout); | |
581 | printf("%9u vnode pager pageins\n", vmm.v_vnodein); | |
582 | printf("%9u vnode pager pages paged in\n", vmm.v_vnodepgsin); | |
583 | printf("%9u vnode pager pageouts\n", vmm.v_vnodeout); | |
584 | printf("%9u vnode pager pages paged out\n", vmm.v_vnodepgsout); | |
585 | printf("%9u page daemon wakeups\n", vmm.v_pdwakeups); | |
586 | printf("%9u pages examined by the page daemon\n", vmm.v_pdpages); | |
587 | printf("%9u pages reactivated\n", vmm.v_reactivated); | |
588 | printf("%9u copy-on-write faults\n", vmm.v_cow_faults); | |
589 | printf("%9u copy-on-write optimized faults\n", vmm.v_cow_optim); | |
590 | printf("%9u zero fill pages zeroed\n", vmm.v_zfod); | |
591 | printf("%9u zero fill pages prezeroed\n", vmm.v_ozfod); | |
592 | printf("%9u intransit blocking page faults\n", vmm.v_intrans); | |
593 | printf("%9u total VM faults taken\n", vmm.v_vm_faults); | |
594 | printf("%9u pages affected by kernel thread creation\n", vmm.v_kthreadpages); | |
595 | printf("%9u pages affected by fork()\n", vmm.v_forkpages); | |
596 | printf("%9u pages affected by vfork()\n", vmm.v_vforkpages); | |
597 | printf("%9u pages affected by rfork()\n", vmm.v_rforkpages); | |
598 | printf("%9u pages freed\n", vmm.v_tfree); | |
599 | printf("%9u pages freed by daemon\n", vmm.v_dfree); | |
600 | printf("%9u pages freed by exiting processes\n", vmm.v_pfree); | |
601 | printf("%9u pages active\n", vms.v_active_count); | |
602 | printf("%9u pages inactive\n", vms.v_inactive_count); | |
603 | printf("%9u pages in VM cache\n", vms.v_cache_count); | |
604 | printf("%9u pages wired down\n", vms.v_wire_count); | |
605 | printf("%9u pages free\n", vms.v_free_count); | |
606 | printf("%9u bytes per page\n", vms.v_page_size); | |
24e51f36 HP |
607 | |
608 | if ((nch_tmp = malloc(nch_size)) == NULL) { | |
609 | perror("malloc"); | |
610 | exit(1); | |
611 | } else { | |
612 | if (sysctlbyname("vfs.cache.nchstats", nch_tmp, &nch_size, NULL, 0)) { | |
613 | perror("sysctlbyname vfs.cache.nchstats"); | |
614 | free(nch_tmp); | |
615 | exit(1); | |
616 | } else { | |
617 | if ((nch_tmp = realloc(nch_tmp, nch_size)) == NULL) { | |
618 | perror("realloc"); | |
619 | exit(1); | |
620 | } | |
621 | } | |
622 | } | |
623 | ||
624 | cpucnt = nch_size / sizeof(struct nchstats); | |
625 | kvm_nch_cpuagg(nch_tmp, &nchstats, cpucnt); | |
626 | ||
984263bc MD |
627 | nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + |
628 | nchstats.ncs_badhits + nchstats.ncs_falsehits + | |
27abc816 MD |
629 | nchstats.ncs_miss; |
630 | nchpathtotal = nchstats.ncs_longhits + nchstats.ncs_longmiss; | |
631 | printf("%9ld total path lookups\n", nchpathtotal); | |
632 | printf("%9ld total component lookups\n", nchtotal); | |
2e134091 | 633 | printf( |
27abc816 | 634 | "%9s cache hits (%ld%% pos + %ld%% neg)\n", |
984263bc | 635 | "", PCT(nchstats.ncs_goodhits, nchtotal), |
27abc816 MD |
636 | PCT(nchstats.ncs_neghits, nchtotal)); |
637 | printf("%9s deletions %ld%%, falsehits %ld%%\n", "", | |
984263bc | 638 | PCT(nchstats.ncs_badhits, nchtotal), |
27abc816 | 639 | PCT(nchstats.ncs_falsehits, nchtotal)); |
24e51f36 | 640 | free(nch_tmp); |
984263bc MD |
641 | } |
642 | ||
643 | #ifdef notyet | |
644 | void | |
1d1731fa | 645 | doforkst(void) |
984263bc MD |
646 | { |
647 | struct forkstat fks; | |
648 | ||
649 | kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); | |
2e134091 | 650 | printf("%d forks, %d pages, average %.2f\n", |
984263bc | 651 | fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); |
2e134091 | 652 | printf("%d vforks, %d pages, average %.2f\n", |
984263bc MD |
653 | fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); |
654 | } | |
655 | #endif | |
656 | ||
657 | static void | |
1d1731fa | 658 | devstats(void) |
984263bc | 659 | { |
3c6b4125 | 660 | int dn; |
984263bc MD |
661 | long double transfers_per_second; |
662 | long double busy_seconds; | |
f5d21610 JS |
663 | |
664 | diff_cp_time.cp_user = cp_time.cp_user - old_cp_time.cp_user; | |
665 | diff_cp_time.cp_nice = cp_time.cp_nice - old_cp_time.cp_nice; | |
666 | diff_cp_time.cp_sys = cp_time.cp_sys - old_cp_time.cp_sys; | |
667 | diff_cp_time.cp_intr = cp_time.cp_intr - old_cp_time.cp_intr; | |
668 | diff_cp_time.cp_idle = cp_time.cp_idle - old_cp_time.cp_idle; | |
669 | old_cp_time = cp_time; | |
984263bc MD |
670 | |
671 | busy_seconds = compute_etime(cur.busy_time, last.busy_time); | |
672 | ||
673 | for (dn = 0; dn < num_devices; dn++) { | |
674 | int di; | |
675 | ||
676 | if ((dev_select[dn].selected == 0) | |
677 | || (dev_select[dn].selected > maxshowdevs)) | |
678 | continue; | |
679 | ||
680 | di = dev_select[dn].position; | |
681 | ||
682 | if (compute_stats(&cur.dinfo->devices[di], | |
683 | &last.dinfo->devices[di], busy_seconds, | |
684 | NULL, NULL, NULL, | |
685 | NULL, &transfers_per_second, NULL, | |
686 | NULL, NULL) != 0) | |
687 | errx(1, "%s", devstat_errbuf); | |
688 | ||
689 | printf("%3.0Lf ", transfers_per_second); | |
690 | } | |
691 | } | |
692 | ||
3c6b4125 | 693 | static void |
1d1731fa | 694 | cpustats(void) |
984263bc | 695 | { |
f5d21610 | 696 | uint64_t total; |
3c6b4125 | 697 | double totusage; |
f5d21610 JS |
698 | |
699 | total = diff_cp_time.cp_user + diff_cp_time.cp_nice + | |
700 | diff_cp_time.cp_sys + diff_cp_time.cp_intr + diff_cp_time.cp_idle; | |
984263bc | 701 | |
984263bc | 702 | if (total) |
3c6b4125 | 703 | totusage = 100.0 / total; |
984263bc | 704 | else |
3c6b4125 JS |
705 | totusage = 0; |
706 | printf("%2.0f ", | |
707 | (diff_cp_time.cp_user + diff_cp_time.cp_nice) * totusage); | |
708 | printf("%2.0f ", | |
709 | (diff_cp_time.cp_sys + diff_cp_time.cp_intr) * totusage); | |
710 | printf("%2.0f", | |
711 | diff_cp_time.cp_idle * totusage); | |
984263bc MD |
712 | } |
713 | ||
3c6b4125 | 714 | static void |
1d1731fa | 715 | dointr(void) |
984263bc | 716 | { |
2e134091 LF |
717 | u_long *intrcnt, uptime; |
718 | u_int64_t inttotal; | |
4dfb4f32 | 719 | size_t nintr, inamlen, i, size; |
a73fdee8 MD |
720 | int nwidth; |
721 | char *intrstr; | |
722 | char **intrname; | |
984263bc MD |
723 | |
724 | uptime = getuptime(); | |
4dfb4f32 SS |
725 | if (sysctlbyname("hw.intrnames", NULL, &inamlen, NULL, 0) != 0) |
726 | errx(1, "sysctlbyname"); | |
a73fdee8 MD |
727 | intrstr = malloc(inamlen); |
728 | if (intrstr == NULL) | |
4dfb4f32 | 729 | err(1, "malloc"); |
a73fdee8 MD |
730 | sysctlbyname("hw.intrnames", intrstr, &inamlen, NULL, 0); |
731 | for (nintr = 0, i = 0; i < inamlen; ++i) { | |
732 | if (intrstr[i] == 0) | |
4dfb4f32 | 733 | nintr++; |
a73fdee8 MD |
734 | } |
735 | intrname = malloc(nintr * sizeof(char *)); | |
736 | for (i = 0; i < nintr; ++i) { | |
737 | intrname[i] = intrstr; | |
738 | intrstr += strlen(intrstr) + 1; | |
739 | } | |
740 | ||
4dfb4f32 | 741 | size = nintr * sizeof(*intrcnt); |
53052796 | 742 | intrcnt = calloc(nintr, sizeof(*intrcnt)); |
4dfb4f32 SS |
743 | if (intrcnt == NULL) |
744 | err(1, "malloc"); | |
745 | sysctlbyname("hw.intrcnt", intrcnt, &size, NULL, 0); | |
a73fdee8 | 746 | |
bba17725 | 747 | nwidth = 21; |
a73fdee8 MD |
748 | for (i = 0; i < nintr; ++i) { |
749 | if (nwidth < (int)strlen(intrname[i])) | |
750 | nwidth = (int)strlen(intrname[i]); | |
751 | } | |
5be6fe29 | 752 | if (verbose) nwidth += 8; |
a73fdee8 | 753 | |
5be6fe29 TN |
754 | printf("%-*.*s %11s %10s\n", |
755 | nwidth, nwidth, "interrupt", "total", "rate"); | |
984263bc | 756 | inttotal = 0; |
a73fdee8 | 757 | for (i = 0; i < nintr; ++i) { |
bba17725 | 758 | int named; |
5be6fe29 | 759 | char *infop, irqinfo[72]; |
bba17725 YT |
760 | |
761 | if ((named = strncmp(intrname[i], "irq", 3)) != 0 || | |
762 | intrcnt[i] > 0) { | |
763 | infop = intrname[i]; | |
764 | if (verbose && named) { | |
765 | snprintf(irqinfo, sizeof(irqinfo), | |
424e8382 | 766 | "irq%zd: %s", i, intrname[i]); |
bba17725 YT |
767 | infop = irqinfo; |
768 | } | |
a73fdee8 | 769 | printf("%-*.*s %11lu %10lu\n", |
bba17725 | 770 | nwidth, nwidth, infop, |
a73fdee8 | 771 | intrcnt[i], intrcnt[i] / uptime); |
24a1f87d | 772 | } |
a73fdee8 | 773 | inttotal += intrcnt[i]; |
984263bc | 774 | } |
a73fdee8 MD |
775 | printf("%-*.*s %11llu %10llu\n", |
776 | nwidth, nwidth, "Total", | |
ce70368f | 777 | (long long)inttotal, (long long)(inttotal / uptime)); |
984263bc MD |
778 | } |
779 | ||
d0ab431a | 780 | #define MAX_KMSTATS 1024 |
984263bc | 781 | |
2c9bc808 | 782 | static long |
8fec73d5 | 783 | cpuagg(size_t *ary) |
027557c6 MD |
784 | { |
785 | int i; | |
786 | long ttl; | |
787 | ||
788 | for (i = ttl = 0; i < SMP_MAXCPU; ++i) | |
789 | ttl += ary[i]; | |
790 | return(ttl); | |
791 | } | |
792 | ||
3c6b4125 | 793 | static void |
1d1731fa | 794 | domem(void) |
984263bc | 795 | { |
2e134091 LF |
796 | struct malloc_type *ks; |
797 | int i, j; | |
24e51f36 | 798 | int first, nkms; |
984263bc | 799 | long totuse = 0, totfree = 0, totreq = 0; |
984263bc MD |
800 | struct malloc_type kmemstats[MAX_KMSTATS], *kmsp; |
801 | char buf[1024]; | |
984263bc | 802 | |
984263bc MD |
803 | kread(X_KMEMSTATISTICS, &kmsp, sizeof(kmsp)); |
804 | for (nkms = 0; nkms < MAX_KMSTATS && kmsp != NULL; nkms++) { | |
805 | if (sizeof(kmemstats[0]) != kvm_read(kd, (u_long)kmsp, | |
806 | &kmemstats[nkms], sizeof(kmemstats[0]))) | |
807 | err(1, "kvm_read(%p)", (void *)kmsp); | |
808 | if (sizeof(buf) != kvm_read(kd, | |
809 | (u_long)kmemstats[nkms].ks_shortdesc, buf, sizeof(buf))) | |
810 | err(1, "kvm_read(%p)", | |
3c6b4125 | 811 | kmemstats[nkms].ks_shortdesc); |
984263bc MD |
812 | buf[sizeof(buf) - 1] = '\0'; |
813 | kmemstats[nkms].ks_shortdesc = strdup(buf); | |
814 | kmsp = kmemstats[nkms].ks_next; | |
815 | } | |
816 | if (kmsp != NULL) | |
817 | warnx("truncated to the first %d memory types", nkms); | |
984263bc | 818 | |
2e134091 | 819 | printf( |
984263bc | 820 | "\nMemory statistics by type Type Kern\n"); |
2e134091 | 821 | printf( |
8fec73d5 | 822 | " Type InUse MemUse HighUse Limit Requests Limit Limit\n"); |
984263bc MD |
823 | for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { |
824 | if (ks->ks_calls == 0) | |
825 | continue; | |
8fec73d5 | 826 | printf("%19s%7ld%7ldK%7ldK%8zdK%10jd%5u%6u", |
984263bc | 827 | ks->ks_shortdesc, |
027557c6 | 828 | cpuagg(ks->ks_inuse), (cpuagg(ks->ks_memuse) + 1023) / 1024, |
984263bc | 829 | (ks->ks_maxused + 1023) / 1024, |
ce70368f | 830 | (ks->ks_limit + 1023) / 1024, (intmax_t)ks->ks_calls, |
984263bc MD |
831 | ks->ks_limblocks, ks->ks_mapblocks); |
832 | first = 1; | |
833 | for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { | |
834 | if ((ks->ks_size & j) == 0) | |
835 | continue; | |
836 | if (first) | |
837 | printf(" "); | |
838 | else | |
839 | printf(","); | |
840 | if(j<1024) | |
841 | printf("%d",j); | |
842 | else | |
843 | printf("%dK",j>>10); | |
844 | first = 0; | |
845 | } | |
846 | printf("\n"); | |
027557c6 | 847 | totuse += cpuagg(ks->ks_memuse); |
984263bc MD |
848 | totreq += ks->ks_calls; |
849 | } | |
2e134091 LF |
850 | printf("\nMemory Totals: In Use Free Requests\n"); |
851 | printf(" %7ldK %6ldK %8ld\n", | |
984263bc MD |
852 | (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); |
853 | } | |
854 | ||
3c6b4125 | 855 | static void |
1d1731fa | 856 | dozmem(void) |
984263bc MD |
857 | { |
858 | char *buf; | |
859 | size_t bufsize; | |
860 | ||
861 | buf = NULL; | |
862 | bufsize = 1024; | |
863 | for (;;) { | |
864 | if ((buf = realloc(buf, bufsize)) == NULL) | |
865 | err(1, "realloc()"); | |
eecd52b2 | 866 | if (sysctlbyname("vm.zone", buf, &bufsize, NULL, 0) == 0) |
984263bc MD |
867 | break; |
868 | if (errno != ENOMEM) | |
869 | err(1, "sysctl()"); | |
870 | bufsize *= 2; | |
871 | } | |
872 | buf[bufsize] = '\0'; /* play it safe */ | |
2e134091 | 873 | printf("%s\n\n", buf); |
984263bc MD |
874 | free(buf); |
875 | } | |
876 | ||
877 | /* | |
878 | * kread reads something from the kernel, given its nlist index. | |
879 | */ | |
3c6b4125 | 880 | static void |
1d1731fa | 881 | kread(int nlx, void *addr, size_t size) |
984263bc | 882 | { |
f5d21610 | 883 | const char *sym; |
984263bc MD |
884 | |
885 | if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { | |
886 | sym = namelist[nlx].n_name; | |
887 | if (*sym == '_') | |
888 | ++sym; | |
889 | errx(1, "symbol %s not defined", sym); | |
890 | } | |
3c6b4125 | 891 | if (kvm_read(kd, namelist[nlx].n_value, addr, size) != (ssize_t)size) { |
984263bc MD |
892 | sym = namelist[nlx].n_name; |
893 | if (*sym == '_') | |
894 | ++sym; | |
895 | errx(1, "%s: %s", sym, kvm_geterr(kd)); | |
896 | } | |
897 | } | |
898 | ||
3c6b4125 | 899 | static void |
1d1731fa | 900 | usage(void) |
984263bc | 901 | { |
2e134091 | 902 | fprintf(stderr, "%s%s", |
bba17725 | 903 | "usage: vmstat [-imsvz] [-c count] [-M core] [-N system] [-w wait]\n", |
984263bc MD |
904 | " [-n devs] [disks]\n"); |
905 | exit(1); | |
906 | } |