Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.94
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.94 ! miod 2: /* $OpenBSD: vmstat.c,v 1.93 2004/11/28 14:05:24 miod 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: */
32:
33: #ifndef lint
34: static char copyright[] =
35: "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
36: The Regents of the University of California. All rights reserved.\n";
37: #endif /* not lint */
38:
39: #ifndef lint
40: #if 0
41: static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
42: #else
1.94 ! miod 43: static const char rcsid[] = "$OpenBSD: vmstat.c,v 1.93 2004/11/28 14:05:24 miod Exp $";
1.1 deraadt 44: #endif
45: #endif /* not lint */
1.48 art 46:
1.1 deraadt 47: #include <sys/param.h>
48: #include <sys/time.h>
49: #include <sys/proc.h>
50: #include <sys/user.h>
51: #include <sys/dkstat.h>
52: #include <sys/buf.h>
53: #include <sys/namei.h>
54: #include <sys/malloc.h>
55: #include <sys/fcntl.h>
56: #include <sys/ioctl.h>
57: #include <sys/sysctl.h>
58: #include <sys/device.h>
1.48 art 59: #include <sys/pool.h>
1.1 deraadt 60: #include <time.h>
61: #include <nlist.h>
62: #include <kvm.h>
1.21 millert 63: #include <err.h>
1.1 deraadt 64: #include <errno.h>
65: #include <unistd.h>
66: #include <signal.h>
67: #include <stdio.h>
68: #include <ctype.h>
69: #include <stdlib.h>
70: #include <string.h>
71: #include <paths.h>
72: #include <limits.h>
1.6 tholo 73: #include "dkstats.h"
1.1 deraadt 74:
1.56 angelos 75: #include <uvm/uvm_object.h>
1.29 art 76: #include <uvm/uvm_extern.h>
77:
1.1 deraadt 78: struct nlist namelist[] = {
1.70 deraadt 79: #define X_UVMEXP 0 /* sysctl */
1.29 art 80: { "_uvmexp" },
1.70 deraadt 81: #define X_BOOTTIME 1 /* sysctl */
1.1 deraadt 82: { "_boottime" },
1.70 deraadt 83: #define X_NCHSTATS 2 /* sysctl */
1.1 deraadt 84: { "_nchstats" },
1.70 deraadt 85: #define X_KMEMSTAT 3 /* sysctl */
86: { "_kmemstats" },
87: #define X_KMEMBUCKETS 4 /* sysctl */
88: { "_bucket" },
89: #define X_FORKSTAT 5 /* sysctl */
90: { "_forkstat" },
91: #define X_NSELCOLL 6 /* sysctl */
92: { "_nselcoll" },
93: #define X_POOLHEAD 7 /* sysctl */
94: { "_pool_head" },
1.94 ! miod 95: #define X_END 8
1.1 deraadt 96: { "" },
97: };
98:
1.6 tholo 99: /* Objects defined in dkstats.c */
1.73 tdeval 100: extern struct _disk cur, last;
1.10 deraadt 101: extern char **dr_name;
102: extern int *dk_select, dk_ndrive;
1.1 deraadt 103:
1.29 art 104: struct uvmexp uvmexp, ouvmexp;
1.6 tholo 105: int ndrives;
1.1 deraadt 106:
107: int winlines = 20;
108:
109: kvm_t *kd;
110:
111: #define FORKSTAT 0x01
112: #define INTRSTAT 0x02
113: #define MEMSTAT 0x04
114: #define SUMSTAT 0x08
115: #define TIMESTAT 0x10
116: #define VMSTAT 0x20
117:
1.66 millert 118: void cpustats(void);
119: void dkstats(void);
120: void dointr(void);
121: void domem(void);
122: void dopool(void);
123: void dosum(void);
124: void dovmstat(u_int, int);
125: void kread(int, void *, size_t);
126: void usage(void);
127: void dotimes(void);
128: void doforkst(void);
129: void printhdr(void);
1.1 deraadt 130:
1.66 millert 131: char **choosedrives(char **);
1.10 deraadt 132:
133: /* Namelist and memory file names. */
134: char *nlistf, *memf;
1.6 tholo 135:
1.50 art 136: extern char *__progname;
137:
1.65 art 138: int verbose = 0;
1.87 aaron 139: int zflag = 0;
1.65 art 140:
1.84 deraadt 141: int ncpu;
142:
1.21 millert 143: int
1.72 deraadt 144: main(int argc, char *argv[])
1.1 deraadt 145: {
146: extern int optind;
147: extern char *optarg;
1.84 deraadt 148: int mib[2];
149: size_t size;
1.62 mpech 150: int c, todo;
1.1 deraadt 151: u_int interval;
152: int reps;
1.25 deraadt 153: char errbuf[_POSIX2_LINE_MAX];
1.1 deraadt 154:
155: interval = reps = todo = 0;
1.87 aaron 156: while ((c = getopt(argc, argv, "c:fiM:mN:stw:vz")) != -1) {
1.1 deraadt 157: switch (c) {
158: case 'c':
159: reps = atoi(optarg);
160: break;
161: case 'f':
162: todo |= FORKSTAT;
163: break;
164: case 'i':
165: todo |= INTRSTAT;
166: break;
167: case 'M':
168: memf = optarg;
169: break;
170: case 'm':
171: todo |= MEMSTAT;
172: break;
173: case 'N':
174: nlistf = optarg;
175: break;
176: case 's':
177: todo |= SUMSTAT;
178: break;
179: case 't':
180: todo |= TIMESTAT;
181: break;
182: case 'w':
183: interval = atoi(optarg);
184: break;
1.65 art 185: case 'v':
186: verbose = 1;
187: break;
1.87 aaron 188: case 'z':
189: zflag = 1;
190: break;
1.1 deraadt 191: case '?':
192: default:
193: usage();
194: }
195: }
196: argc -= optind;
197: argv += optind;
198:
199: if (todo == 0)
200: todo = VMSTAT;
201:
1.56 angelos 202: if (nlistf != NULL || memf != NULL) {
203: setegid(getgid());
204: setgid(getgid());
205: }
206:
1.1 deraadt 207: /*
208: * Discard setgid privileges if not the running kernel so that bad
209: * guys can't print interesting stuff from kernel memory.
210: */
1.56 angelos 211: #if notyet
1.15 tholo 212: if (nlistf != NULL || memf != NULL) {
1.56 angelos 213: #endif
214: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
215: if (kd == 0)
216: errx(1, "kvm_openfiles: %s", errbuf);
217:
218: if ((c = kvm_nlist(kd, namelist)) != 0) {
219: setgid(getgid());
220: setegid(getegid());
221:
222: if (c > 0) {
223: (void)fprintf(stderr,
224: "%s: undefined symbols:", __progname);
225: for (c = 0;
226: c < sizeof(namelist)/sizeof(namelist[0]);
227: c++)
228: if (namelist[c].n_type == 0)
229: fprintf(stderr, " %s",
230: namelist[c].n_name);
231: (void)fputc('\n', stderr);
232: exit(1);
233: } else
234: errx(1, "kvm_nlist: %s", kvm_geterr(kd));
235: }
236: #ifdef notyet
1.15 tholo 237: }
1.59 heko 238: #endif /* notyet */
1.1 deraadt 239:
1.56 angelos 240: setegid(getegid());
241: setgid(getgid());
1.1 deraadt 242:
1.84 deraadt 243: mib[0] = CTL_HW;
244: mib[1] = HW_NCPU;
245: size = sizeof(ncpu);
246: (void) sysctl(mib, 2, &ncpu, &size, NULL, 0);
247:
1.1 deraadt 248: if (todo & VMSTAT) {
249: struct winsize winsize;
250:
1.6 tholo 251: dkinit(0); /* Initialize disk stats, no disks selected. */
252: argv = choosedrives(argv); /* Select disks. */
1.1 deraadt 253: winsize.ws_row = 0;
254: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize);
255: if (winsize.ws_row > 0)
256: winlines = winsize.ws_row;
257:
258: }
1.25 deraadt 259:
1.1 deraadt 260: #define BACKWARD_COMPATIBILITY
261: #ifdef BACKWARD_COMPATIBILITY
262: if (*argv) {
263: interval = atoi(*argv);
264: if (*++argv)
265: reps = atoi(*argv);
266: }
267: #endif
268:
269: if (interval) {
270: if (!reps)
271: reps = -1;
272: } else if (reps)
273: interval = 1;
274:
275: if (todo & FORKSTAT)
276: doforkst();
1.48 art 277: if (todo & MEMSTAT) {
1.1 deraadt 278: domem();
1.48 art 279: dopool();
280: }
1.1 deraadt 281: if (todo & SUMSTAT)
282: dosum();
283: if (todo & TIMESTAT)
284: dotimes();
285: if (todo & INTRSTAT)
286: dointr();
287: if (todo & VMSTAT)
288: dovmstat(interval, reps);
289: exit(0);
290: }
291:
292: char **
1.72 deraadt 293: choosedrives(char **argv)
1.1 deraadt 294: {
1.62 mpech 295: int i;
1.1 deraadt 296:
297: /*
298: * Choose drives to be displayed. Priority goes to (in order) drives
299: * supplied as arguments, default drives. If everything isn't filled
300: * in and there are drives not taken care of, display the first few
301: * that fit.
302: */
303: #define BACKWARD_COMPATIBILITY
304: for (ndrives = 0; *argv; ++argv) {
305: #ifdef BACKWARD_COMPATIBILITY
306: if (isdigit(**argv))
307: break;
308: #endif
309: for (i = 0; i < dk_ndrive; i++) {
310: if (strcmp(dr_name[i], *argv))
311: continue;
1.6 tholo 312: dk_select[i] = 1;
1.1 deraadt 313: ++ndrives;
314: break;
315: }
316: }
1.64 deraadt 317: for (i = 0; i < dk_ndrive && ndrives < 2; i++) {
1.6 tholo 318: if (dk_select[i])
1.1 deraadt 319: continue;
1.6 tholo 320: dk_select[i] = 1;
1.1 deraadt 321: ++ndrives;
322: }
323: return(argv);
324: }
325:
1.19 deraadt 326: time_t
1.72 deraadt 327: getuptime(void)
1.1 deraadt 328: {
1.11 deraadt 329: static time_t now;
330: static struct timeval boottime;
1.1 deraadt 331: time_t uptime;
1.50 art 332: int mib[2];
333: size_t size;
1.1 deraadt 334:
1.50 art 335: if (boottime.tv_sec == 0) {
1.56 angelos 336: if (nlistf == NULL && memf == NULL) {
1.50 art 337: size = sizeof(boottime);
338: mib[0] = CTL_KERN;
339: mib[1] = KERN_BOOTTIME;
340: if (sysctl(mib, 2, &boottime, &size, NULL, 0) < 0) {
1.56 angelos 341: warn("could not get kern.boottime");
1.50 art 342: bzero(&boottime, sizeof(boottime));
343: }
1.56 angelos 344: } else {
345: kread(X_BOOTTIME, &boottime, sizeof(boottime));
1.50 art 346: }
347: }
1.1 deraadt 348: (void)time(&now);
1.11 deraadt 349: uptime = now - boottime.tv_sec;
1.50 art 350: if (uptime <= 0 || uptime > 60*60*24*365*10)
351: errx(1, "time makes no sense; namelist must be wrong");
352:
1.1 deraadt 353: return(uptime);
354: }
355:
356: int hz, hdrcnt;
357:
358: void
1.72 deraadt 359: dovmstat(u_int interval, int reps)
1.1 deraadt 360: {
361: struct vmtotal total;
362: time_t uptime, halfuptime;
1.78 deraadt 363: void needhdr(int);
1.1 deraadt 364: int mib[2];
1.50 art 365: struct clockinfo clkinfo;
1.1 deraadt 366: size_t size;
367:
368: uptime = getuptime();
369: halfuptime = uptime / 2;
370: (void)signal(SIGCONT, needhdr);
371:
1.50 art 372: mib[0] = CTL_KERN;
373: mib[1] = KERN_CLOCKRATE;
374: size = sizeof(clkinfo);
375: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) {
1.56 angelos 376: warn("could not read kern.clockrate");
1.50 art 377: return;
378: }
379: hz = clkinfo.stathz;
1.1 deraadt 380:
381: for (hdrcnt = 1;;) {
1.6 tholo 382: /* Read new disk statistics */
383: dkreadstats();
1.73 tdeval 384: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
385: printhdr();
1.56 angelos 386: if (nlistf == NULL && memf == NULL) {
387: size = sizeof(struct uvmexp);
1.52 angelos 388: mib[0] = CTL_VM;
389: mib[1] = VM_UVMEXP;
390: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 391: warn("could not get vm.uvmexp");
392: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 393: }
1.56 angelos 394: } else {
395: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 396: }
1.1 deraadt 397: size = sizeof(total);
398: mib[0] = CTL_VM;
399: mib[1] = VM_METER;
400: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
1.56 angelos 401: warn("could not read vm.vmmeter");
1.1 deraadt 402: bzero(&total, sizeof(total));
403: }
1.22 millert 404: (void)printf("%2u%2u%2u",
1.1 deraadt 405: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.29 art 406: #define rate(x) (((x) + halfuptime) / uptime) /* round */
407: #define pgtok(a) ((a) * ((int)uvmexp.pagesize >> 10))
1.35 hugh 408: (void)printf("%7u%7u ",
1.1 deraadt 409: pgtok(total.t_avm), pgtok(total.t_free));
1.64 deraadt 410: (void)printf("%5u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 411: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
412: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
413: (void)printf("%3u %3u ",
414: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
415: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
416: dkstats();
1.64 deraadt 417: (void)printf("%4u %5u %4u ",
1.29 art 418: rate(uvmexp.intrs - ouvmexp.intrs),
419: rate(uvmexp.syscalls - ouvmexp.syscalls),
420: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 421: cpustats();
422: (void)printf("\n");
423: (void)fflush(stdout);
424: if (reps >= 0 && --reps <= 0)
425: break;
1.29 art 426: ouvmexp = uvmexp;
1.1 deraadt 427: uptime = interval;
428: /*
429: * We round upward to avoid losing low-frequency events
430: * (i.e., >= 1 per interval but < 1 per second).
431: */
1.14 deraadt 432: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 433: (void)sleep(interval);
434: }
435: }
436:
1.21 millert 437: void
1.72 deraadt 438: printhdr(void)
1.1 deraadt 439: {
1.62 mpech 440: int i;
1.1 deraadt 441:
1.67 ho 442: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 443: if (ndrives > 0)
1.79 tedu 444: (void)printf("%s %*straps cpu\n",
1.6 tholo 445: ((ndrives > 1) ? "disks" : "disk"),
1.64 deraadt 446: ((ndrives > 1) ? ndrives * 4 - 4 : 0), "");
1.1 deraadt 447: else
1.79 tedu 448: (void)printf("%*s traps cpu\n",
1.6 tholo 449: ndrives * 3, "");
450:
1.64 deraadt 451: (void)printf(" r b w avm fre flt re pi po fr sr ");
1.1 deraadt 452: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 453: if (dk_select[i])
1.67 ho 454: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 455: dr_name[i][1],
1.1 deraadt 456: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 457: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 458: hdrcnt = winlines - 2;
459: }
460:
461: /*
462: * Force a header to be prepended to the next output.
463: */
1.90 deraadt 464: /* ARGSUSED */
1.1 deraadt 465: void
1.78 deraadt 466: needhdr(int signo)
1.1 deraadt 467: {
468:
469: hdrcnt = 1;
470: }
471:
472: void
1.72 deraadt 473: dotimes(void)
1.1 deraadt 474: {
475: u_int pgintime, rectime;
1.52 angelos 476: int mib[2];
477: size_t size;
1.1 deraadt 478:
1.56 angelos 479: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 480: pgintime = 0;
481: rectime = 0;
1.56 angelos 482:
483: if (nlistf == NULL && memf == NULL) {
484: size = sizeof(struct uvmexp);
1.52 angelos 485: mib[0] = CTL_VM;
486: mib[1] = VM_UVMEXP;
487: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 488: warn("could not read vm.uvmexp");
489: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 490: }
1.56 angelos 491: } else {
492: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 493: }
494:
1.29 art 495: (void)printf("%u reactivates, %u total time (usec)\n",
496: uvmexp.pdreact, rectime);
1.89 miod 497: if (uvmexp.pdreact != 0)
498: (void)printf("average: %u usec / reclaim\n",
499: rectime / uvmexp.pdreact);
1.29 art 500: (void)printf("\n");
501: (void)printf("%u page ins, %u total time (msec)\n",
502: uvmexp.pageins, pgintime / 10);
1.89 miod 503: if (uvmexp.pageins != 0)
504: (void)printf("average: %8.1f msec / page in\n",
505: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 506: }
507:
1.21 millert 508: int
1.72 deraadt 509: pct(long top, long bot)
1.1 deraadt 510: {
511: long ans;
512:
513: if (bot == 0)
514: return(0);
515: ans = (quad_t)top * 100 / bot;
516: return (ans);
517: }
518:
519: #define PCT(top, bot) pct((long)(top), (long)(bot))
520:
521: void
1.72 deraadt 522: dosum(void)
1.1 deraadt 523: {
524: struct nchstats nchstats;
525: long nchtotal;
1.52 angelos 526: size_t size;
527: int mib[2], nselcoll;
1.1 deraadt 528:
1.56 angelos 529: if (nlistf == NULL && memf == NULL) {
530: size = sizeof(struct uvmexp);
1.52 angelos 531: mib[0] = CTL_VM;
532: mib[1] = VM_UVMEXP;
533: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 534: warn("could not read vm.uvmexp");
535: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 536: }
1.56 angelos 537: } else {
538: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 539: }
540:
1.32 art 541: /* vm_page constants */
1.35 hugh 542: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 543:
544: /* vm_page counters */
1.35 hugh 545: (void)printf("%11u pages managed\n", uvmexp.npages);
546: (void)printf("%11u pages free\n", uvmexp.free);
547: (void)printf("%11u pages active\n", uvmexp.active);
548: (void)printf("%11u pages inactive\n", uvmexp.inactive);
549: (void)printf("%11u pages being paged out\n", uvmexp.paging);
550: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 551: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 552: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 553: uvmexp.reserve_pagedaemon);
1.35 hugh 554: (void)printf("%11u pages reserved for kernel\n",
1.48 art 555: uvmexp.reserve_kernel);
1.32 art 556:
557: /* swap */
1.35 hugh 558: (void)printf("%11u swap pages\n", uvmexp.swpages);
559: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
560: (void)printf("%11u total anon's in system\n", uvmexp.nanon);
561: (void)printf("%11u free anon's\n", uvmexp.nfreeanon);
1.32 art 562:
563: /* stat counters */
1.35 hugh 564: (void)printf("%11u page faults\n", uvmexp.faults);
565: (void)printf("%11u traps\n", uvmexp.traps);
566: (void)printf("%11u interrupts\n", uvmexp.intrs);
567: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
568: (void)printf("%11u software interrupts\n", uvmexp.softs);
569: (void)printf("%11u syscalls\n", uvmexp.syscalls);
570: (void)printf("%11u pagein operations\n", uvmexp.pageins);
571: (void)printf("%11u swap ins\n", uvmexp.swapins);
572: (void)printf("%11u swap outs\n", uvmexp.swapouts);
573: (void)printf("%11u forks\n", uvmexp.forks);
574: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 575: uvmexp.forks_sharevm);
1.32 art 576:
577: /* daemon counters */
1.64 deraadt 578: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 579: uvmexp.pdwoke);
1.35 hugh 580: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
581: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
582: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
583: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
584: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 585:
1.56 angelos 586: if (nlistf == NULL && memf == NULL) {
1.52 angelos 587: size = sizeof(nchstats);
588: mib[0] = CTL_KERN;
589: mib[1] = KERN_NCHSTATS;
590: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 591: warn("could not read kern.nchstats");
1.52 angelos 592: bzero(&nchstats, sizeof(nchstats));
593: }
1.56 angelos 594: } else {
595: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 596: }
597:
1.1 deraadt 598: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
599: nchstats.ncs_badhits + nchstats.ncs_falsehits +
600: nchstats.ncs_miss + nchstats.ncs_long;
1.35 hugh 601: (void)printf("%11ld total name lookups\n", nchtotal);
1.52 angelos 602: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
603: "per-directory\n",
1.1 deraadt 604: "", PCT(nchstats.ncs_goodhits, nchtotal),
605: PCT(nchstats.ncs_neghits, nchtotal),
606: PCT(nchstats.ncs_pass2, nchtotal));
1.35 hugh 607: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.1 deraadt 608: PCT(nchstats.ncs_badhits, nchtotal),
609: PCT(nchstats.ncs_falsehits, nchtotal),
610: PCT(nchstats.ncs_long, nchtotal));
1.52 angelos 611:
1.56 angelos 612: if (nlistf == NULL && memf == NULL) {
1.52 angelos 613: size = sizeof(nselcoll);
614: mib[0] = CTL_KERN;
615: mib[1] = KERN_NSELCOLL;
616: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 617: warn("could not read kern.nselcoll");
1.52 angelos 618: nselcoll = 0;
619: }
1.56 angelos 620: } else {
621: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 622: }
1.50 art 623: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 624: }
625:
626: void
1.72 deraadt 627: doforkst(void)
1.1 deraadt 628: {
629: struct forkstat fks;
1.52 angelos 630: size_t size;
631: int mib[2];
632:
1.56 angelos 633: if (nlistf == NULL && memf == NULL) {
1.52 angelos 634: size = sizeof(struct forkstat);
635: mib[0] = CTL_KERN;
636: mib[1] = KERN_FORKSTAT;
637: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 638: warn("could not read kern.forkstat");
1.52 angelos 639: bzero(&fks, sizeof(struct forkstat));
640: }
1.56 angelos 641: } else {
642: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 643: }
1.1 deraadt 644:
645: (void)printf("%d forks, %d pages, average %.2f\n",
646: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
647: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 648: fks.cntvfork, fks.sizvfork,
649: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.12 tholo 650: (void)printf("%d rforks, %d pages, average %.2f\n",
1.72 deraadt 651: fks.cntrfork, fks.sizrfork,
652: (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
1.36 niklas 653: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 654: fks.cntkthread, fks.sizkthread,
655: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 656: }
657:
658: void
1.72 deraadt 659: dkstats(void)
1.1 deraadt 660: {
1.62 mpech 661: int dn, state;
1.1 deraadt 662: double etime;
663:
1.6 tholo 664: /* Calculate disk stat deltas. */
665: dkswap();
1.1 deraadt 666: etime = 0;
667: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 668: etime += cur.cp_time[state];
1.1 deraadt 669: }
670: if (etime == 0)
671: etime = 1;
672: etime /= hz;
1.84 deraadt 673: etime /= ncpu;
1.1 deraadt 674: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 675: if (!dk_select[dn])
1.1 deraadt 676: continue;
1.82 tedu 677: (void)printf("%3.0f ",
678: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 679: }
680: }
681:
682: void
1.72 deraadt 683: cpustats(void)
1.1 deraadt 684: {
1.62 mpech 685: int state;
1.1 deraadt 686: double pct, total;
687:
688: total = 0;
689: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 690: total += cur.cp_time[state];
1.1 deraadt 691: if (total)
692: pct = 100 / total;
693: else
694: pct = 0;
1.6 tholo 695: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pct);
696: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pct);
697: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct);
1.1 deraadt 698: }
699:
700: void
1.72 deraadt 701: dointr(void)
1.74 art 702: {
703: struct device dev;
704:
705: time_t uptime;
1.90 deraadt 706: u_int64_t inttotal;
1.74 art 707: int nintr;
708: char intrname[128];
709: int mib[4];
710: size_t siz;
711: int i;
712:
1.93 miod 713: if (nlistf != NULL || memf != NULL) {
714: errx(1,
715: "interrupt statistics are only available on live kernels");
716: }
717:
1.74 art 718: uptime = getuptime();
719:
720: mib[0] = CTL_KERN;
721: mib[1] = KERN_INTRCNT;
722: mib[2] = KERN_INTRCNT_NUM;
723: siz = sizeof(nintr);
724: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
725: warnx("could not read kern.intrcnt.nintrcnt");
726: return;
727: }
728:
1.91 deraadt 729: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 730:
1.74 art 731: inttotal = 0;
732: for (i = 0; i < nintr; i++) {
1.87 aaron 733: char name[128];
1.90 deraadt 734: u_quad_t cnt;
1.87 aaron 735: int vector;
1.74 art 736:
737: mib[0] = CTL_KERN;
738: mib[1] = KERN_INTRCNT;
739: mib[2] = KERN_INTRCNT_NAME;
740: mib[3] = i;
1.87 aaron 741: siz = sizeof(name);
742: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 743: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 744: return;
745: }
746:
747: mib[0] = CTL_KERN;
748: mib[1] = KERN_INTRCNT;
749: mib[2] = KERN_INTRCNT_VECTOR;
750: mib[3] = i;
751: siz = sizeof(vector);
752: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
753: strlcpy(intrname, name, sizeof(intrname));
754: } else {
755: snprintf(intrname, sizeof(intrname), "irq%d/%s",
756: vector, name);
1.74 art 757: }
758:
759: mib[0] = CTL_KERN;
760: mib[1] = KERN_INTRCNT;
761: mib[2] = KERN_INTRCNT_CNT;
762: mib[3] = i;
763: siz = sizeof(cnt);
764: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 765: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 766: return;
1.74 art 767: }
1.90 deraadt 768:
1.87 aaron 769: if (cnt || zflag)
1.91 deraadt 770: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 771: cnt, cnt / uptime);
1.74 art 772: inttotal += cnt;
773: }
774:
1.91 deraadt 775: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 776: inttotal / uptime);
1.1 deraadt 777: }
778:
779: /*
780: * These names are defined in <sys/malloc.h>.
781: */
782: char *kmemnames[] = INITKMEMNAMES;
783:
784: void
1.72 deraadt 785: domem(void)
1.1 deraadt 786: {
1.62 mpech 787: struct kmembuckets *kp;
788: struct kmemstats *ks;
789: int i, j;
1.1 deraadt 790: int len, size, first;
1.50 art 791: u_long totuse = 0, totfree = 0;
792: quad_t totreq = 0;
1.1 deraadt 793: char *name;
794: struct kmemstats kmemstats[M_LAST];
795: struct kmembuckets buckets[MINBUCKET + 16];
1.50 art 796: int mib[4];
797: size_t siz;
798: char buf[BUFSIZ], *bufp, *ap;
799:
800: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 801: mib[0] = CTL_KERN;
1.50 art 802: mib[1] = KERN_MALLOCSTATS;
803: mib[2] = KERN_MALLOC_BUCKETS;
804: siz = sizeof(buf);
805: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 806: warnx("could not read kern.malloc.buckets");
1.50 art 807: return;
808: }
809:
810: bufp = buf;
811: mib[2] = KERN_MALLOC_BUCKET;
812: siz = sizeof(struct kmembuckets);
813: i = 0;
814: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 815: mib[3] = atoi(ap);
1.50 art 816:
817: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 818: NULL, 0) < 0) {
1.56 angelos 819: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 820: return;
821: }
822: i++;
823: }
824: } else {
1.53 deraadt 825: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 826: }
1.1 deraadt 827:
1.18 kstailey 828: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
829: i++, kp++) {
1.65 art 830: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 831: continue;
1.18 kstailey 832: if (first) {
833: (void)printf("Memory statistics by bucket size\n");
834: (void)printf(
1.50 art 835: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 836: first = 0;
837: }
1.1 deraadt 838: size = 1 << i;
1.60 art 839: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
840: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
841: (unsigned long long)kp->kb_totalfree,
842: (unsigned long long)kp->kb_calls,
843: (unsigned long long)kp->kb_highwat,
844: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 845: totfree += size * kp->kb_totalfree;
1.18 kstailey 846: }
847:
848: /*
849: * If kmem statistics are not being gathered by the kernel,
850: * first will still be 1.
851: */
852: if (first) {
853: printf(
854: "Kmem statistics are not being gathered by the kernel.\n");
855: return;
1.1 deraadt 856: }
857:
1.52 angelos 858: if (memf == NULL && nlistf == NULL) {
859: bzero(kmemstats, sizeof(kmemstats));
860: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 861: mib[0] = CTL_KERN;
1.52 angelos 862: mib[1] = KERN_MALLOCSTATS;
863: mib[2] = KERN_MALLOC_KMEMSTATS;
864: mib[3] = i;
865: siz = sizeof(struct kmemstats);
866:
867: /*
868: * Skip errors -- these are presumed to be unallocated
869: * entries.
870: */
871: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
872: continue;
873: }
874: } else {
875: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
876: }
877:
1.1 deraadt 878: (void)printf("\nMemory usage type by bucket size\n");
879: (void)printf(" Size Type(s)\n");
880: kp = &buckets[MINBUCKET];
881: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
882: if (kp->kb_calls == 0)
883: continue;
884: first = 1;
885: len = 8;
886: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
887: if (ks->ks_calls == 0)
888: continue;
889: if ((ks->ks_size & j) == 0)
890: continue;
891: name = kmemnames[i] ? kmemnames[i] : "undefined";
892: len += 2 + strlen(name);
893: if (first)
894: printf("%8d %s", j, name);
895: else
896: printf(",");
897: if (len >= 80) {
898: printf("\n\t ");
899: len = 10 + strlen(name);
900: }
901: if (!first)
902: printf(" %s", name);
903: first = 0;
904: }
905: printf("\n");
906: }
907:
908: (void)printf(
1.26 deraadt 909: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 910: (void)printf(
1.26 deraadt 911: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 912: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
913: if (ks->ks_calls == 0)
914: continue;
1.24 mickey 915: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 916: kmemnames[i] ? kmemnames[i] : "undefined",
917: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
918: (ks->ks_maxused + 1023) / 1024,
919: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
920: ks->ks_limblocks, ks->ks_mapblocks);
921: first = 1;
922: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
923: if ((ks->ks_size & j) == 0)
924: continue;
925: if (first)
926: printf(" %d", j);
927: else
928: printf(",%d", j);
929: first = 0;
930: }
931: printf("\n");
932: totuse += ks->ks_memuse;
933: totreq += ks->ks_calls;
934: }
935: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 936: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 937: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
938: }
939:
1.54 art 940: static void
941: print_pool(struct pool *pp, char *name)
942: {
943: static int first = 1;
944: int ovflw;
945: char maxp[32];
946:
947: if (first) {
948: (void)printf("Memory resource pool statistics\n");
949: (void)printf(
950: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
951: "Name",
952: "Size",
953: "Requests",
954: "Fail",
955: "Releases",
956: "Pgreq",
957: "Pgrel",
958: "Npage",
959: "Hiwat",
960: "Minpg",
961: "Maxpg",
962: "Idle");
963: first = 0;
964: }
1.65 art 965:
966: /* Skip unused pools unless verbose output. */
967: if (pp->pr_nget == 0 && !verbose)
968: return;
969:
1.54 art 970: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 971: snprintf(maxp, sizeof maxp, "inf");
1.54 art 972: else
1.69 deraadt 973: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 974: /*
975: * Print single word. `ovflow' is number of characters didn't fit
976: * on the last word. `fmt' is a format string to print this word.
977: * It must contain asterisk for field width. `width' is a width
978: * occupied by this word. `fixed' is a number of constant chars in
979: * `fmt'. `val' is a value to be printed using format string `fmt'.
980: */
981: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
982: (ovflw) += printf((fmt), \
983: (width) - (fixed) - (ovflw) > 0 ? \
984: (width) - (fixed) - (ovflw) : 0, \
985: (val)) - (width); \
986: if ((ovflw) < 0) \
987: (ovflw) = 0; \
988: } while (/* CONSTCOND */0)
989:
990: ovflw = 0;
991: PRWORD(ovflw, "%-*s", 11, 0, name);
992: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
993: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
994: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
995: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nput);
996: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
997: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
998: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
999: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
1000: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
1001: PRWORD(ovflw, " %*s", 6, 1, maxp);
1002: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1003: }
1004:
1.55 art 1005: static void dopool_kvm(void);
1006: static void dopool_sysctl(void);
1007:
1.48 art 1008: void
1009: dopool(void)
1010: {
1.55 art 1011: if (nlistf == NULL && memf == NULL)
1012: dopool_sysctl();
1013: else
1014: dopool_kvm();
1015: }
1016:
1017: void
1018: dopool_sysctl(void)
1019: {
1.63 art 1020: long total = 0, inuse = 0;
1.55 art 1021: struct pool pool;
1022: size_t size;
1023: int mib[4];
1024: int npools, i;
1025:
1026: mib[0] = CTL_KERN;
1027: mib[1] = KERN_POOL;
1028: mib[2] = KERN_POOL_NPOOLS;
1029: size = sizeof(npools);
1030: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 1031: warn("can't figure out number of pools in kernel");
1.55 art 1032: return;
1033: }
1034:
1035: for (i = 1; npools; i++) {
1036: char name[32];
1037:
1038: mib[0] = CTL_KERN;
1039: mib[1] = KERN_POOL;
1040: mib[2] = KERN_POOL_POOL;
1041: mib[3] = i;
1042: size = sizeof(struct pool);
1043: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
1044: if (errno == ENOENT)
1045: continue;
1.92 pedro 1046: warn("error getting pool");
1.55 art 1047: return;
1048: }
1049: npools--;
1050: mib[2] = KERN_POOL_NAME;
1051: size = sizeof(name);
1052: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1053: warn("error getting pool name");
1.55 art 1054: return;
1055: }
1056: print_pool(&pool, name);
1.63 art 1057:
1058: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1059: total += pool.pr_npages * getpagesize(); /* XXX */
1.55 art 1060: }
1.63 art 1061:
1062: inuse /= 1024;
1063: total /= 1024;
1064: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1065: inuse, total, (double)(100 * inuse) / total);
1.55 art 1066: }
1067:
1068: void
1069: dopool_kvm(void)
1070: {
1.48 art 1071: long addr;
1072: long total = 0, inuse = 0;
1073: TAILQ_HEAD(,pool) pool_head;
1074: struct pool pool, *pp = &pool;
1075:
1076: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1077: addr = (long)TAILQ_FIRST(&pool_head);
1078:
1.55 art 1079: while (addr != 0) {
1.54 art 1080: char name[32];
1.56 angelos 1081:
1.48 art 1082: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1083: (void)fprintf(stderr,
1084: "vmstat: pool chain trashed: %s\n",
1085: kvm_geterr(kd));
1086: exit(1);
1087: }
1088: if (kvm_read(kd, (long)pp->pr_wchan, name, sizeof name) < 0) {
1089: (void)fprintf(stderr,
1090: "vmstat: pool name trashed: %s\n",
1091: kvm_geterr(kd));
1092: exit(1);
1093: }
1.56 angelos 1094:
1.48 art 1095: name[31] = '\0';
1096:
1.54 art 1097: print_pool(pp, name);
1.48 art 1098:
1099: inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
1.63 art 1100: total += pp->pr_npages * getpagesize(); /* XXX */
1.56 angelos 1101:
1.48 art 1102: addr = (long)TAILQ_NEXT(pp, pr_poollist);
1103: }
1104:
1105: inuse /= 1024;
1106: total /= 1024;
1107: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1108: inuse, total, (double)(100 * inuse) / total);
1109: }
1110:
1.1 deraadt 1111: /*
1112: * kread reads something from the kernel, given its nlist index.
1113: */
1114: void
1.72 deraadt 1115: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1116: {
1117: char *sym;
1118:
1119: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1120: sym = namelist[nlx].n_name;
1121: if (*sym == '_')
1122: ++sym;
1.50 art 1123: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1124: }
1125: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1126: sym = namelist[nlx].n_name;
1127: if (*sym == '_')
1128: ++sym;
1.50 art 1129: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1130: }
1131: }
1132:
1133: void
1.72 deraadt 1134: usage(void)
1.1 deraadt 1135: {
1.88 jmc 1136: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.50 art 1137: "[-N system] [-w wait] [disks]\n", __progname);
1.1 deraadt 1138: exit(1);
1139: }
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