Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.132
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.132 ! kettenis 2: /* $OpenBSD: vmstat.c,v 1.131 2014/07/08 17:19:26 deraadt Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1980, 1986, 1991, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.77 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
1.48 art 32:
1.1 deraadt 33: #include <sys/param.h>
34: #include <sys/time.h>
35: #include <sys/proc.h>
36: #include <sys/dkstat.h>
37: #include <sys/buf.h>
38: #include <sys/namei.h>
39: #include <sys/malloc.h>
40: #include <sys/fcntl.h>
41: #include <sys/ioctl.h>
42: #include <sys/sysctl.h>
43: #include <sys/device.h>
1.48 art 44: #include <sys/pool.h>
1.128 mpi 45: #include <sys/vmmeter.h>
46:
1.1 deraadt 47: #include <time.h>
48: #include <nlist.h>
49: #include <kvm.h>
1.21 millert 50: #include <err.h>
1.1 deraadt 51: #include <errno.h>
52: #include <unistd.h>
53: #include <signal.h>
54: #include <stdio.h>
55: #include <ctype.h>
56: #include <stdlib.h>
57: #include <string.h>
58: #include <paths.h>
59: #include <limits.h>
1.6 tholo 60: #include "dkstats.h"
1.29 art 61:
1.1 deraadt 62: struct nlist namelist[] = {
1.70 deraadt 63: #define X_UVMEXP 0 /* sysctl */
1.29 art 64: { "_uvmexp" },
1.124 guenther 65: #define X_TIME_UPTIME 1
66: { "_time_uptime" },
1.70 deraadt 67: #define X_NCHSTATS 2 /* sysctl */
1.1 deraadt 68: { "_nchstats" },
1.70 deraadt 69: #define X_KMEMSTAT 3 /* sysctl */
70: { "_kmemstats" },
71: #define X_KMEMBUCKETS 4 /* sysctl */
72: { "_bucket" },
73: #define X_FORKSTAT 5 /* sysctl */
74: { "_forkstat" },
75: #define X_NSELCOLL 6 /* sysctl */
76: { "_nselcoll" },
77: #define X_POOLHEAD 7 /* sysctl */
78: { "_pool_head" },
1.124 guenther 79: #define X_NAPTIME 8
80: { "_naptime" },
1.1 deraadt 81: { "" },
82: };
83:
1.6 tholo 84: /* Objects defined in dkstats.c */
1.73 tdeval 85: extern struct _disk cur, last;
1.10 deraadt 86: extern char **dr_name;
87: extern int *dk_select, dk_ndrive;
1.1 deraadt 88:
1.29 art 89: struct uvmexp uvmexp, ouvmexp;
1.6 tholo 90: int ndrives;
1.1 deraadt 91:
92: int winlines = 20;
93:
94: kvm_t *kd;
95:
96: #define FORKSTAT 0x01
97: #define INTRSTAT 0x02
98: #define MEMSTAT 0x04
99: #define SUMSTAT 0x08
100: #define TIMESTAT 0x10
101: #define VMSTAT 0x20
102:
1.66 millert 103: void cpustats(void);
1.101 otto 104: time_t getuptime(void);
1.66 millert 105: void dkstats(void);
106: void dointr(void);
107: void domem(void);
108: void dopool(void);
109: void dosum(void);
110: void dovmstat(u_int, int);
111: void kread(int, void *, size_t);
112: void usage(void);
113: void dotimes(void);
114: void doforkst(void);
1.101 otto 115: void needhdr(int);
1.112 naddy 116: int pct(int64_t, int64_t);
1.66 millert 117: void printhdr(void);
1.1 deraadt 118:
1.66 millert 119: char **choosedrives(char **);
1.10 deraadt 120:
121: /* Namelist and memory file names. */
122: char *nlistf, *memf;
1.6 tholo 123:
1.50 art 124: extern char *__progname;
125:
1.65 art 126: int verbose = 0;
1.87 aaron 127: int zflag = 0;
1.65 art 128:
1.21 millert 129: int
1.72 deraadt 130: main(int argc, char *argv[])
1.1 deraadt 131: {
1.102 deraadt 132: char errbuf[_POSIX2_LINE_MAX];
1.126 chl 133: int c, todo = 0, reps = 0;
1.102 deraadt 134: const char *errstr;
135: u_int interval = 0;
1.1 deraadt 136:
1.87 aaron 137: while ((c = getopt(argc, argv, "c:fiM:mN:stw:vz")) != -1) {
1.1 deraadt 138: switch (c) {
139: case 'c':
140: reps = atoi(optarg);
141: break;
142: case 'f':
143: todo |= FORKSTAT;
144: break;
145: case 'i':
146: todo |= INTRSTAT;
147: break;
148: case 'M':
149: memf = optarg;
150: break;
151: case 'm':
152: todo |= MEMSTAT;
153: break;
154: case 'N':
155: nlistf = optarg;
156: break;
157: case 's':
158: todo |= SUMSTAT;
159: break;
160: case 't':
161: todo |= TIMESTAT;
162: break;
163: case 'w':
1.102 deraadt 164: interval = (u_int)strtonum(optarg, 0, 1000, &errstr);
165: if (errstr)
1.104 pedro 166: errx(1, "-w %s: %s", optarg, errstr);
1.1 deraadt 167: break;
1.65 art 168: case 'v':
169: verbose = 1;
170: break;
1.87 aaron 171: case 'z':
172: zflag = 1;
173: break;
1.1 deraadt 174: case '?':
175: default:
176: usage();
177: }
178: }
179: argc -= optind;
180: argv += optind;
181:
182: if (todo == 0)
183: todo = VMSTAT;
184:
1.56 angelos 185: if (nlistf != NULL || memf != NULL) {
186:
187: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
188: if (kd == 0)
189: errx(1, "kvm_openfiles: %s", errbuf);
190:
191: if ((c = kvm_nlist(kd, namelist)) != 0) {
192:
193: if (c > 0) {
194: (void)fprintf(stderr,
195: "%s: undefined symbols:", __progname);
196: for (c = 0;
197: c < sizeof(namelist)/sizeof(namelist[0]);
198: c++)
199: if (namelist[c].n_type == 0)
200: fprintf(stderr, " %s",
201: namelist[c].n_name);
202: (void)fputc('\n', stderr);
203: exit(1);
204: } else
205: errx(1, "kvm_nlist: %s", kvm_geterr(kd));
206: }
1.115 lum 207: }
1.1 deraadt 208:
209: if (todo & VMSTAT) {
210: struct winsize winsize;
211:
1.6 tholo 212: dkinit(0); /* Initialize disk stats, no disks selected. */
213: argv = choosedrives(argv); /* Select disks. */
1.1 deraadt 214: winsize.ws_row = 0;
1.102 deraadt 215: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize);
1.1 deraadt 216: if (winsize.ws_row > 0)
217: winlines = winsize.ws_row;
218:
219: }
1.25 deraadt 220:
1.1 deraadt 221: #define BACKWARD_COMPATIBILITY
222: #ifdef BACKWARD_COMPATIBILITY
223: if (*argv) {
1.102 deraadt 224: interval = (u_int)strtonum(*argv, 0, 1000, &errstr);
225: if (errstr)
1.104 pedro 226: errx(1, "%s: %s", *argv, errstr);
1.103 deraadt 227:
1.1 deraadt 228: if (*++argv)
229: reps = atoi(*argv);
230: }
231: #endif
232:
233: if (interval) {
234: if (!reps)
235: reps = -1;
236: } else if (reps)
237: interval = 1;
238:
239: if (todo & FORKSTAT)
240: doforkst();
1.48 art 241: if (todo & MEMSTAT) {
1.1 deraadt 242: domem();
1.48 art 243: dopool();
244: }
1.1 deraadt 245: if (todo & SUMSTAT)
246: dosum();
247: if (todo & TIMESTAT)
248: dotimes();
249: if (todo & INTRSTAT)
250: dointr();
251: if (todo & VMSTAT)
252: dovmstat(interval, reps);
253: exit(0);
254: }
255:
256: char **
1.72 deraadt 257: choosedrives(char **argv)
1.1 deraadt 258: {
1.62 mpech 259: int i;
1.1 deraadt 260:
261: /*
262: * Choose drives to be displayed. Priority goes to (in order) drives
263: * supplied as arguments, default drives. If everything isn't filled
264: * in and there are drives not taken care of, display the first few
265: * that fit.
266: */
267: #define BACKWARD_COMPATIBILITY
268: for (ndrives = 0; *argv; ++argv) {
269: #ifdef BACKWARD_COMPATIBILITY
1.127 deraadt 270: if (isdigit((unsigned char)**argv))
1.1 deraadt 271: break;
272: #endif
273: for (i = 0; i < dk_ndrive; i++) {
274: if (strcmp(dr_name[i], *argv))
275: continue;
1.6 tholo 276: dk_select[i] = 1;
1.1 deraadt 277: ++ndrives;
278: break;
279: }
280: }
1.64 deraadt 281: for (i = 0; i < dk_ndrive && ndrives < 2; i++) {
1.6 tholo 282: if (dk_select[i])
1.1 deraadt 283: continue;
1.6 tholo 284: dk_select[i] = 1;
1.1 deraadt 285: ++ndrives;
286: }
287: return(argv);
288: }
289:
1.19 deraadt 290: time_t
1.72 deraadt 291: getuptime(void)
1.1 deraadt 292: {
1.124 guenther 293: struct timespec uptime;
294: time_t time_uptime, naptime;
1.1 deraadt 295:
1.124 guenther 296: if (nlistf == NULL && memf == NULL) {
297: if (clock_gettime(CLOCK_UPTIME, &uptime) == -1)
298: err(1, "clock_gettime");
299: return (uptime.tv_sec);
1.50 art 300: }
301:
1.124 guenther 302: kread(X_NAPTIME, &naptime, sizeof(naptime));
303: kread(X_TIME_UPTIME, &time_uptime, sizeof(time_uptime));
304: return (time_uptime - naptime);
1.1 deraadt 305: }
306:
1.105 cloder 307: int hz;
308: volatile sig_atomic_t hdrcnt;
1.1 deraadt 309:
310: void
1.72 deraadt 311: dovmstat(u_int interval, int reps)
1.1 deraadt 312: {
313: time_t uptime, halfuptime;
1.50 art 314: struct clockinfo clkinfo;
1.102 deraadt 315: struct vmtotal total;
1.1 deraadt 316: size_t size;
1.102 deraadt 317: int mib[2];
1.1 deraadt 318:
319: uptime = getuptime();
320: halfuptime = uptime / 2;
321: (void)signal(SIGCONT, needhdr);
322:
1.50 art 323: mib[0] = CTL_KERN;
324: mib[1] = KERN_CLOCKRATE;
325: size = sizeof(clkinfo);
326: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) {
1.56 angelos 327: warn("could not read kern.clockrate");
1.50 art 328: return;
329: }
330: hz = clkinfo.stathz;
1.1 deraadt 331:
332: for (hdrcnt = 1;;) {
1.6 tholo 333: /* Read new disk statistics */
334: dkreadstats();
1.73 tdeval 335: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
336: printhdr();
1.56 angelos 337: if (nlistf == NULL && memf == NULL) {
338: size = sizeof(struct uvmexp);
1.52 angelos 339: mib[0] = CTL_VM;
340: mib[1] = VM_UVMEXP;
341: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 342: warn("could not get vm.uvmexp");
343: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 344: }
1.56 angelos 345: } else {
346: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 347: }
1.1 deraadt 348: size = sizeof(total);
349: mib[0] = CTL_VM;
350: mib[1] = VM_METER;
351: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
1.56 angelos 352: warn("could not read vm.vmmeter");
1.1 deraadt 353: bzero(&total, sizeof(total));
354: }
1.114 tedu 355: (void)printf(" %u %u %u ",
1.1 deraadt 356: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.123 guenther 357: #define rate(x) ((unsigned)((((unsigned)x) + halfuptime) / uptime)) /* round */
1.102 deraadt 358: #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10))
1.114 tedu 359: (void)printf("%6u %7u ",
1.128 mpi 360: pgtok(uvmexp.active + uvmexp.swpginuse),
361: pgtok(uvmexp.free));
1.106 sobrado 362: (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 363: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
364: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
365: (void)printf("%3u %3u ",
366: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
367: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
368: dkstats();
1.64 deraadt 369: (void)printf("%4u %5u %4u ",
1.29 art 370: rate(uvmexp.intrs - ouvmexp.intrs),
371: rate(uvmexp.syscalls - ouvmexp.syscalls),
372: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 373: cpustats();
374: (void)printf("\n");
375: (void)fflush(stdout);
376: if (reps >= 0 && --reps <= 0)
377: break;
1.29 art 378: ouvmexp = uvmexp;
1.1 deraadt 379: uptime = interval;
380: /*
381: * We round upward to avoid losing low-frequency events
382: * (i.e., >= 1 per interval but < 1 per second).
383: */
1.14 deraadt 384: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 385: (void)sleep(interval);
386: }
387: }
388:
1.21 millert 389: void
1.72 deraadt 390: printhdr(void)
1.1 deraadt 391: {
1.62 mpech 392: int i;
1.114 tedu 393: static int printedhdr;
394:
395: if (printedhdr && !isatty(STDOUT_FILENO))
396: return;
1.1 deraadt 397:
1.108 sobrado 398: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 399: if (ndrives > 0)
1.106 sobrado 400: (void)printf("%s %*straps cpu\n",
1.6 tholo 401: ((ndrives > 1) ? "disks" : "disk"),
1.106 sobrado 402: ((ndrives > 1) ? ndrives * 4 - 5 : 0), "");
1.1 deraadt 403: else
1.106 sobrado 404: (void)printf("%*s traps cpu\n",
1.6 tholo 405: ndrives * 3, "");
406:
1.106 sobrado 407: (void)printf(" r b w avm fre flt re pi po fr sr ");
1.1 deraadt 408: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 409: if (dk_select[i])
1.67 ho 410: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 411: dr_name[i][1],
1.1 deraadt 412: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 413: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 414: hdrcnt = winlines - 2;
1.114 tedu 415: printedhdr = 1;
1.1 deraadt 416: }
417:
418: /*
419: * Force a header to be prepended to the next output.
420: */
1.90 deraadt 421: /* ARGSUSED */
1.1 deraadt 422: void
1.78 deraadt 423: needhdr(int signo)
1.1 deraadt 424: {
425:
426: hdrcnt = 1;
427: }
428:
429: void
1.72 deraadt 430: dotimes(void)
1.1 deraadt 431: {
432: u_int pgintime, rectime;
1.102 deraadt 433: size_t size;
1.52 angelos 434: int mib[2];
1.1 deraadt 435:
1.56 angelos 436: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 437: pgintime = 0;
438: rectime = 0;
1.56 angelos 439:
440: if (nlistf == NULL && memf == NULL) {
441: size = sizeof(struct uvmexp);
1.52 angelos 442: mib[0] = CTL_VM;
443: mib[1] = VM_UVMEXP;
444: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 445: warn("could not read vm.uvmexp");
446: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 447: }
1.56 angelos 448: } else {
449: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 450: }
451:
1.29 art 452: (void)printf("%u reactivates, %u total time (usec)\n",
453: uvmexp.pdreact, rectime);
1.89 miod 454: if (uvmexp.pdreact != 0)
455: (void)printf("average: %u usec / reclaim\n",
456: rectime / uvmexp.pdreact);
1.29 art 457: (void)printf("\n");
458: (void)printf("%u page ins, %u total time (msec)\n",
459: uvmexp.pageins, pgintime / 10);
1.89 miod 460: if (uvmexp.pageins != 0)
461: (void)printf("average: %8.1f msec / page in\n",
1.103 deraadt 462: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 463: }
464:
1.21 millert 465: int
1.112 naddy 466: pct(int64_t top, int64_t bot)
1.1 deraadt 467: {
1.102 deraadt 468: int ans;
1.1 deraadt 469:
470: if (bot == 0)
471: return(0);
1.112 naddy 472: ans = top * 100 / bot;
1.1 deraadt 473: return (ans);
474: }
475:
476: void
1.72 deraadt 477: dosum(void)
1.1 deraadt 478: {
479: struct nchstats nchstats;
1.102 deraadt 480: int mib[2], nselcoll;
1.112 naddy 481: long long nchtotal;
1.52 angelos 482: size_t size;
1.1 deraadt 483:
1.56 angelos 484: if (nlistf == NULL && memf == NULL) {
485: size = sizeof(struct uvmexp);
1.52 angelos 486: mib[0] = CTL_VM;
487: mib[1] = VM_UVMEXP;
488: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 489: warn("could not read vm.uvmexp");
490: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 491: }
1.56 angelos 492: } else {
493: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 494: }
495:
1.32 art 496: /* vm_page constants */
1.35 hugh 497: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 498:
499: /* vm_page counters */
1.35 hugh 500: (void)printf("%11u pages managed\n", uvmexp.npages);
501: (void)printf("%11u pages free\n", uvmexp.free);
502: (void)printf("%11u pages active\n", uvmexp.active);
503: (void)printf("%11u pages inactive\n", uvmexp.inactive);
504: (void)printf("%11u pages being paged out\n", uvmexp.paging);
505: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 506: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 507: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 508: uvmexp.reserve_pagedaemon);
1.35 hugh 509: (void)printf("%11u pages reserved for kernel\n",
1.48 art 510: uvmexp.reserve_kernel);
1.32 art 511:
512: /* swap */
1.35 hugh 513: (void)printf("%11u swap pages\n", uvmexp.swpages);
514: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
515: (void)printf("%11u total anon's in system\n", uvmexp.nanon);
516: (void)printf("%11u free anon's\n", uvmexp.nfreeanon);
1.32 art 517:
518: /* stat counters */
1.35 hugh 519: (void)printf("%11u page faults\n", uvmexp.faults);
520: (void)printf("%11u traps\n", uvmexp.traps);
521: (void)printf("%11u interrupts\n", uvmexp.intrs);
522: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
1.95 mickey 523: (void)printf("%11u fpu context switches\n", uvmexp.fpswtch);
1.35 hugh 524: (void)printf("%11u software interrupts\n", uvmexp.softs);
525: (void)printf("%11u syscalls\n", uvmexp.syscalls);
526: (void)printf("%11u pagein operations\n", uvmexp.pageins);
527: (void)printf("%11u forks\n", uvmexp.forks);
528: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 529: uvmexp.forks_sharevm);
1.97 pedro 530: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.132 ! kettenis 531: (void)printf("%11u zeroed page hits\n", uvmexp.pga_zerohit);
! 532: (void)printf("%11u zeroed page misses\n", uvmexp.pga_zeromiss);
1.32 art 533:
534: /* daemon counters */
1.64 deraadt 535: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 536: uvmexp.pdwoke);
1.35 hugh 537: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
538: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
539: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
540: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
541: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 542:
1.56 angelos 543: if (nlistf == NULL && memf == NULL) {
1.52 angelos 544: size = sizeof(nchstats);
545: mib[0] = CTL_KERN;
546: mib[1] = KERN_NCHSTATS;
547: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 548: warn("could not read kern.nchstats");
1.52 angelos 549: bzero(&nchstats, sizeof(nchstats));
550: }
1.56 angelos 551: } else {
552: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 553: }
554:
1.1 deraadt 555: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
556: nchstats.ncs_badhits + nchstats.ncs_falsehits +
557: nchstats.ncs_miss + nchstats.ncs_long;
1.112 naddy 558: (void)printf("%11lld total name lookups\n", nchtotal);
1.52 angelos 559: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
560: "per-directory\n",
1.112 naddy 561: "", pct(nchstats.ncs_goodhits, nchtotal),
562: pct(nchstats.ncs_neghits, nchtotal),
563: pct(nchstats.ncs_pass2, nchtotal));
1.35 hugh 564: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.112 naddy 565: pct(nchstats.ncs_badhits, nchtotal),
566: pct(nchstats.ncs_falsehits, nchtotal),
567: pct(nchstats.ncs_long, nchtotal));
1.52 angelos 568:
1.56 angelos 569: if (nlistf == NULL && memf == NULL) {
1.52 angelos 570: size = sizeof(nselcoll);
571: mib[0] = CTL_KERN;
572: mib[1] = KERN_NSELCOLL;
573: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 574: warn("could not read kern.nselcoll");
1.52 angelos 575: nselcoll = 0;
576: }
1.56 angelos 577: } else {
578: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 579: }
1.50 art 580: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 581: }
582:
583: void
1.72 deraadt 584: doforkst(void)
1.1 deraadt 585: {
586: struct forkstat fks;
1.52 angelos 587: size_t size;
588: int mib[2];
589:
1.56 angelos 590: if (nlistf == NULL && memf == NULL) {
1.52 angelos 591: size = sizeof(struct forkstat);
592: mib[0] = CTL_KERN;
593: mib[1] = KERN_FORKSTAT;
594: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 595: warn("could not read kern.forkstat");
1.52 angelos 596: bzero(&fks, sizeof(struct forkstat));
597: }
1.56 angelos 598: } else {
599: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 600: }
1.1 deraadt 601:
602: (void)printf("%d forks, %d pages, average %.2f\n",
603: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
604: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 605: fks.cntvfork, fks.sizvfork,
606: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.119 deraadt 607: (void)printf("%d __tforks, %d pages, average %.2f\n",
608: fks.cnttfork, fks.siztfork,
609: (double)fks.siztfork / (fks.cnttfork ? fks.cnttfork : 1));
1.36 niklas 610: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 611: fks.cntkthread, fks.sizkthread,
612: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 613: }
614:
615: void
1.72 deraadt 616: dkstats(void)
1.1 deraadt 617: {
1.62 mpech 618: int dn, state;
1.1 deraadt 619: double etime;
620:
1.6 tholo 621: /* Calculate disk stat deltas. */
622: dkswap();
1.1 deraadt 623: etime = 0;
624: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 625: etime += cur.cp_time[state];
1.1 deraadt 626: }
627: if (etime == 0)
628: etime = 1;
629: etime /= hz;
630: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 631: if (!dk_select[dn])
1.1 deraadt 632: continue;
1.82 tedu 633: (void)printf("%3.0f ",
634: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 635: }
636: }
637:
638: void
1.72 deraadt 639: cpustats(void)
1.1 deraadt 640: {
1.102 deraadt 641: double percent, total;
1.62 mpech 642: int state;
1.1 deraadt 643:
644: total = 0;
645: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 646: total += cur.cp_time[state];
1.1 deraadt 647: if (total)
1.101 otto 648: percent = 100 / total;
1.1 deraadt 649: else
1.101 otto 650: percent = 0;
651: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
652: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent);
653: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 654: }
655:
656: void
1.72 deraadt 657: dointr(void)
1.74 art 658: {
1.102 deraadt 659: int nintr, mib[4], i;
660: char intrname[128];
661: u_int64_t inttotal;
1.74 art 662: time_t uptime;
663: size_t siz;
664:
1.93 miod 665: if (nlistf != NULL || memf != NULL) {
666: errx(1,
667: "interrupt statistics are only available on live kernels");
668: }
669:
1.74 art 670: uptime = getuptime();
671:
672: mib[0] = CTL_KERN;
673: mib[1] = KERN_INTRCNT;
674: mib[2] = KERN_INTRCNT_NUM;
675: siz = sizeof(nintr);
676: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
677: warnx("could not read kern.intrcnt.nintrcnt");
678: return;
679: }
680:
1.91 deraadt 681: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 682:
1.74 art 683: inttotal = 0;
684: for (i = 0; i < nintr; i++) {
1.87 aaron 685: char name[128];
1.90 deraadt 686: u_quad_t cnt;
1.87 aaron 687: int vector;
1.74 art 688:
689: mib[0] = CTL_KERN;
690: mib[1] = KERN_INTRCNT;
691: mib[2] = KERN_INTRCNT_NAME;
692: mib[3] = i;
1.87 aaron 693: siz = sizeof(name);
694: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 695: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 696: return;
697: }
698:
699: mib[0] = CTL_KERN;
700: mib[1] = KERN_INTRCNT;
701: mib[2] = KERN_INTRCNT_VECTOR;
702: mib[3] = i;
703: siz = sizeof(vector);
704: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
705: strlcpy(intrname, name, sizeof(intrname));
706: } else {
707: snprintf(intrname, sizeof(intrname), "irq%d/%s",
708: vector, name);
1.74 art 709: }
710:
711: mib[0] = CTL_KERN;
712: mib[1] = KERN_INTRCNT;
713: mib[2] = KERN_INTRCNT_CNT;
714: mib[3] = i;
715: siz = sizeof(cnt);
716: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 717: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 718: return;
1.74 art 719: }
1.90 deraadt 720:
1.87 aaron 721: if (cnt || zflag)
1.91 deraadt 722: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 723: cnt, cnt / uptime);
1.74 art 724: inttotal += cnt;
725: }
726:
1.91 deraadt 727: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 728: inttotal / uptime);
1.1 deraadt 729: }
730:
731: /*
732: * These names are defined in <sys/malloc.h>.
733: */
1.101 otto 734: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 735:
736: void
1.72 deraadt 737: domem(void)
1.1 deraadt 738: {
1.102 deraadt 739: struct kmembuckets buckets[MINBUCKET + 16], *kp;
740: struct kmemstats kmemstats[M_LAST], *ks;
741: int i, j, len, size, first, mib[4];
1.50 art 742: u_long totuse = 0, totfree = 0;
1.102 deraadt 743: char buf[BUFSIZ], *bufp, *ap;
1.50 art 744: quad_t totreq = 0;
1.101 otto 745: const char *name;
1.50 art 746: size_t siz;
747:
748: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 749: mib[0] = CTL_KERN;
1.50 art 750: mib[1] = KERN_MALLOCSTATS;
751: mib[2] = KERN_MALLOC_BUCKETS;
752: siz = sizeof(buf);
753: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 754: warnx("could not read kern.malloc.buckets");
1.50 art 755: return;
756: }
757:
758: bufp = buf;
759: mib[2] = KERN_MALLOC_BUCKET;
760: siz = sizeof(struct kmembuckets);
761: i = 0;
762: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 763: mib[3] = atoi(ap);
1.50 art 764:
765: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 766: NULL, 0) < 0) {
1.56 angelos 767: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 768: return;
769: }
770: i++;
771: }
772: } else {
1.53 deraadt 773: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 774: }
1.1 deraadt 775:
1.18 kstailey 776: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
777: i++, kp++) {
1.65 art 778: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 779: continue;
1.18 kstailey 780: if (first) {
781: (void)printf("Memory statistics by bucket size\n");
782: (void)printf(
1.50 art 783: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 784: first = 0;
785: }
1.1 deraadt 786: size = 1 << i;
1.60 art 787: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
788: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
789: (unsigned long long)kp->kb_totalfree,
790: (unsigned long long)kp->kb_calls,
791: (unsigned long long)kp->kb_highwat,
792: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 793: totfree += size * kp->kb_totalfree;
1.18 kstailey 794: }
795:
796: /*
797: * If kmem statistics are not being gathered by the kernel,
798: * first will still be 1.
799: */
800: if (first) {
801: printf(
802: "Kmem statistics are not being gathered by the kernel.\n");
803: return;
1.1 deraadt 804: }
805:
1.52 angelos 806: if (memf == NULL && nlistf == NULL) {
807: bzero(kmemstats, sizeof(kmemstats));
808: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 809: mib[0] = CTL_KERN;
1.52 angelos 810: mib[1] = KERN_MALLOCSTATS;
811: mib[2] = KERN_MALLOC_KMEMSTATS;
812: mib[3] = i;
813: siz = sizeof(struct kmemstats);
814:
1.103 deraadt 815: /*
1.52 angelos 816: * Skip errors -- these are presumed to be unallocated
817: * entries.
818: */
819: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
820: continue;
821: }
822: } else {
823: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
824: }
825:
1.1 deraadt 826: (void)printf("\nMemory usage type by bucket size\n");
827: (void)printf(" Size Type(s)\n");
828: kp = &buckets[MINBUCKET];
829: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
830: if (kp->kb_calls == 0)
831: continue;
832: first = 1;
833: len = 8;
834: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
835: if (ks->ks_calls == 0)
836: continue;
837: if ((ks->ks_size & j) == 0)
838: continue;
839: name = kmemnames[i] ? kmemnames[i] : "undefined";
840: len += 2 + strlen(name);
841: if (first)
842: printf("%8d %s", j, name);
843: else
844: printf(",");
845: if (len >= 80) {
846: printf("\n\t ");
847: len = 10 + strlen(name);
848: }
849: if (!first)
850: printf(" %s", name);
851: first = 0;
852: }
853: printf("\n");
854: }
855:
856: (void)printf(
1.26 deraadt 857: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 858: (void)printf(
1.26 deraadt 859: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 860: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
861: if (ks->ks_calls == 0)
862: continue;
1.24 mickey 863: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 864: kmemnames[i] ? kmemnames[i] : "undefined",
865: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
866: (ks->ks_maxused + 1023) / 1024,
867: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
868: ks->ks_limblocks, ks->ks_mapblocks);
869: first = 1;
870: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
871: if ((ks->ks_size & j) == 0)
872: continue;
873: if (first)
874: printf(" %d", j);
875: else
876: printf(",%d", j);
877: first = 0;
878: }
879: printf("\n");
880: totuse += ks->ks_memuse;
881: totreq += ks->ks_calls;
882: }
883: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 884: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 885: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
886: }
887:
1.54 art 888: static void
1.129 dlg 889: print_pool(struct kinfo_pool *pp, char *name)
1.54 art 890: {
891: static int first = 1;
1.102 deraadt 892: char maxp[32];
1.54 art 893: int ovflw;
894:
895: if (first) {
896: (void)printf("Memory resource pool statistics\n");
897: (void)printf(
898: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
899: "Name",
900: "Size",
901: "Requests",
902: "Fail",
1.110 otto 903: "InUse",
1.54 art 904: "Pgreq",
905: "Pgrel",
906: "Npage",
907: "Hiwat",
908: "Minpg",
909: "Maxpg",
910: "Idle");
911: first = 0;
912: }
1.65 art 913:
914: /* Skip unused pools unless verbose output. */
915: if (pp->pr_nget == 0 && !verbose)
916: return;
917:
1.54 art 918: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 919: snprintf(maxp, sizeof maxp, "inf");
1.54 art 920: else
1.69 deraadt 921: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 922: /*
923: * Print single word. `ovflow' is number of characters didn't fit
924: * on the last word. `fmt' is a format string to print this word.
925: * It must contain asterisk for field width. `width' is a width
926: * occupied by this word. `fixed' is a number of constant chars in
927: * `fmt'. `val' is a value to be printed using format string `fmt'.
928: */
929: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
930: (ovflw) += printf((fmt), \
931: (width) - (fixed) - (ovflw) > 0 ? \
932: (width) - (fixed) - (ovflw) : 0, \
933: (val)) - (width); \
934: if ((ovflw) < 0) \
935: (ovflw) = 0; \
936: } while (/* CONSTCOND */0)
937:
938: ovflw = 0;
939: PRWORD(ovflw, "%-*s", 11, 0, name);
940: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
941: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
942: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
1.110 otto 943: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput);
1.54 art 944: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
945: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
946: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
947: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
948: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
949: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 950: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 951: }
952:
1.55 art 953: static void dopool_kvm(void);
954: static void dopool_sysctl(void);
955:
1.48 art 956: void
957: dopool(void)
958: {
1.55 art 959: if (nlistf == NULL && memf == NULL)
960: dopool_sysctl();
961: else
962: dopool_kvm();
963: }
964:
965: void
966: dopool_sysctl(void)
967: {
1.117 chl 968: int mib[4], npools, i;
1.63 art 969: long total = 0, inuse = 0;
1.129 dlg 970: struct kinfo_pool pool;
1.55 art 971: size_t size;
972:
973: mib[0] = CTL_KERN;
974: mib[1] = KERN_POOL;
975: mib[2] = KERN_POOL_NPOOLS;
976: size = sizeof(npools);
977: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 978: warn("can't figure out number of pools in kernel");
1.55 art 979: return;
980: }
981:
982: for (i = 1; npools; i++) {
983: char name[32];
984:
985: mib[0] = CTL_KERN;
986: mib[1] = KERN_POOL;
987: mib[2] = KERN_POOL_POOL;
988: mib[3] = i;
1.129 dlg 989: size = sizeof(pool);
1.55 art 990: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
991: if (errno == ENOENT)
992: continue;
1.92 pedro 993: warn("error getting pool");
1.55 art 994: return;
995: }
996: npools--;
997: mib[2] = KERN_POOL_NAME;
998: size = sizeof(name);
999: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1000: warn("error getting pool name");
1.55 art 1001: return;
1002: }
1003: print_pool(&pool, name);
1.63 art 1004:
1005: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1.129 dlg 1006: total += pool.pr_npages * pool.pr_pgsize;
1.55 art 1007: }
1.63 art 1008:
1009: inuse /= 1024;
1010: total /= 1024;
1011: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1012: inuse, total, (double)(100 * inuse) / total);
1.55 art 1013: }
1014:
1015: void
1016: dopool_kvm(void)
1017: {
1.120 tedu 1018: SIMPLEQ_HEAD(,pool) pool_head;
1.48 art 1019: struct pool pool, *pp = &pool;
1.129 dlg 1020: struct pool_allocator palloc;
1021: struct kinfo_pool pi;
1.102 deraadt 1022: long total = 0, inuse = 0;
1023: u_long addr;
1.48 art 1024:
1025: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.120 tedu 1026: addr = (u_long)SIMPLEQ_FIRST(&pool_head);
1.48 art 1027:
1.55 art 1028: while (addr != 0) {
1.54 art 1029: char name[32];
1.56 angelos 1030:
1.48 art 1031: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1032: (void)fprintf(stderr,
1033: "vmstat: pool chain trashed: %s\n",
1034: kvm_geterr(kd));
1035: exit(1);
1036: }
1.102 deraadt 1037: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1038: (void)fprintf(stderr,
1039: "vmstat: pool name trashed: %s\n",
1040: kvm_geterr(kd));
1041: exit(1);
1042: }
1.129 dlg 1043: if (kvm_read(kd, (u_long)pp->pr_alloc,
1044: &palloc, sizeof(palloc)) < 0) {
1045: (void)fprintf(stderr,
1046: "vmstat: pool allocator trashed: %s\n",
1047: kvm_geterr(kd));
1048: exit(1);
1049: }
1.56 angelos 1050:
1.48 art 1051: name[31] = '\0';
1052:
1.129 dlg 1053: memset(&pi, 0, sizeof(pi));
1054: pi.pr_size = pp->pr_size;
1055: pi.pr_pgsize = palloc.pa_pagesz;
1056: pi.pr_itemsperpage = pp->pr_itemsperpage;
1.130 dlg 1057: pi.pr_npages = pp->pr_npages;
1.129 dlg 1058: pi.pr_minpages = pp->pr_minpages;
1059: pi.pr_maxpages = pp->pr_maxpages;
1060: pi.pr_hardlimit = pp->pr_hardlimit;
1061: pi.pr_nout = pp->pr_nout;
1062: pi.pr_nitems = pp->pr_nitems;
1063: pi.pr_nget = pp->pr_nget;
1064: pi.pr_nput = pp->pr_nput;
1065: pi.pr_nfail = pp->pr_nfail;
1066: pi.pr_npagealloc = pp->pr_npagealloc;
1067: pi.pr_npagefree = pp->pr_npagefree;
1068: pi.pr_hiwat = pp->pr_hiwat;
1069: pi.pr_nidle = pp->pr_nidle;
1070:
1071: print_pool(&pi, name);
1.48 art 1072:
1.129 dlg 1073: inuse += (pi.pr_nget - pi.pr_nput) * pi.pr_size;
1074: total += pi.pr_npages * pi.pr_pgsize;
1.56 angelos 1075:
1.120 tedu 1076: addr = (u_long)SIMPLEQ_NEXT(pp, pr_poollist);
1.48 art 1077: }
1078:
1079: inuse /= 1024;
1080: total /= 1024;
1081: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1082: inuse, total, (double)(100 * inuse) / total);
1083: }
1084:
1.1 deraadt 1085: /*
1086: * kread reads something from the kernel, given its nlist index.
1087: */
1088: void
1.72 deraadt 1089: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1090: {
1091: char *sym;
1092:
1093: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1094: sym = namelist[nlx].n_name;
1095: if (*sym == '_')
1096: ++sym;
1.50 art 1097: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1098: }
1099: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1100: sym = namelist[nlx].n_name;
1101: if (*sym == '_')
1102: ++sym;
1.50 art 1103: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1104: }
1105: }
1106:
1107: void
1.72 deraadt 1108: usage(void)
1.1 deraadt 1109: {
1.88 jmc 1110: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.109 sobrado 1111: "[-N system] [-w wait] [disk ...]\n", __progname);
1.1 deraadt 1112: exit(1);
1113: }
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