Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.30
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.30 ! art 2: /* $OpenBSD: vmstat.c,v 1.29 1999/06/23 18:48:12 art 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.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: static char copyright[] =
39: "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
40: The Regents of the University of California. All rights reserved.\n";
41: #endif /* not lint */
42:
43: #ifndef lint
44: #if 0
45: static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
46: #else
1.11 deraadt 47: static char rcsid[] = "$NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $";
1.1 deraadt 48: #endif
49: #endif /* not lint */
50:
51: #include <sys/param.h>
52: #include <sys/time.h>
53: #include <sys/proc.h>
54: #include <sys/user.h>
55: #include <sys/dkstat.h>
56: #include <sys/buf.h>
57: #include <sys/namei.h>
58: #include <sys/malloc.h>
59: #include <sys/fcntl.h>
60: #include <sys/ioctl.h>
61: #include <sys/sysctl.h>
62: #include <sys/device.h>
63: #include <vm/vm.h>
64: #include <time.h>
65: #include <nlist.h>
66: #include <kvm.h>
1.21 millert 67: #include <err.h>
1.1 deraadt 68: #include <errno.h>
69: #include <unistd.h>
70: #include <signal.h>
71: #include <stdio.h>
72: #include <ctype.h>
73: #include <stdlib.h>
74: #include <string.h>
75: #include <paths.h>
76: #include <limits.h>
1.6 tholo 77: #include "dkstats.h"
1.1 deraadt 78:
1.29 art 79: #ifdef UVM
80: #include <uvm/uvm_extern.h>
81: #endif
82:
1.1 deraadt 83: struct nlist namelist[] = {
84: #define X_CPTIME 0
85: { "_cp_time" },
1.29 art 86: #if defined(UVM)
87: #define X_UVMEXP 1
88: { "_uvmexp" },
89: #else
1.23 deraadt 90: #define X_SUM 1
1.1 deraadt 91: { "_cnt" },
1.29 art 92: #endif
1.23 deraadt 93: #define X_BOOTTIME 2
1.1 deraadt 94: { "_boottime" },
1.23 deraadt 95: #define X_HZ 3
1.1 deraadt 96: { "_hz" },
1.23 deraadt 97: #define X_STATHZ 4
1.1 deraadt 98: { "_stathz" },
1.23 deraadt 99: #define X_NCHSTATS 5
1.1 deraadt 100: { "_nchstats" },
1.23 deraadt 101: #define X_INTRNAMES 6
1.1 deraadt 102: { "_intrnames" },
1.23 deraadt 103: #define X_EINTRNAMES 7
1.1 deraadt 104: { "_eintrnames" },
1.23 deraadt 105: #define X_INTRCNT 8
1.1 deraadt 106: { "_intrcnt" },
1.23 deraadt 107: #define X_EINTRCNT 9
1.1 deraadt 108: { "_eintrcnt" },
1.23 deraadt 109: #define X_KMEMSTAT 10
1.1 deraadt 110: { "_kmemstats" },
1.23 deraadt 111: #define X_KMEMBUCKETS 11
1.1 deraadt 112: { "_bucket" },
1.23 deraadt 113: #define X_ALLEVENTS 12
1.1 deraadt 114: { "_allevents" },
1.23 deraadt 115: #define X_FORKSTAT 13
1.12 tholo 116: { "_forkstat" },
1.1 deraadt 117: #ifdef notdef
1.23 deraadt 118: #define X_DEFICIT 14
1.1 deraadt 119: { "_deficit" },
1.23 deraadt 120: #define X_REC 15
1.1 deraadt 121: { "_rectime" },
1.23 deraadt 122: #define X_PGIN 16
1.1 deraadt 123: { "_pgintime" },
1.23 deraadt 124: #define X_XSTATS 17
1.1 deraadt 125: { "_xstats" },
1.23 deraadt 126: #define X_END 28
1.1 deraadt 127: #else
1.23 deraadt 128: #define X_END 14
1.1 deraadt 129: #endif
1.28 espie 130: #if defined(__pc532__)
1.1 deraadt 131: #define X_IVT (X_END)
132: { "_ivt" },
133: #endif
1.28 espie 134: #if defined(__i386__)
1.12 tholo 135: #define X_INTRHAND (X_END)
136: { "_intrhand" },
137: #define X_INTRSTRAY (X_END+1)
138: { "_intrstray" },
139: #endif
1.1 deraadt 140: { "" },
141: };
142:
1.6 tholo 143: /* Objects defined in dkstats.c */
144: extern struct _disk cur;
1.10 deraadt 145: extern char **dr_name;
146: extern int *dk_select, dk_ndrive;
1.1 deraadt 147:
1.29 art 148: #ifdef UVM
149: struct uvmexp uvmexp, ouvmexp;
150: #else
1.1 deraadt 151: struct vmmeter sum, osum;
1.29 art 152: #endif
1.6 tholo 153: int ndrives;
1.1 deraadt 154:
155: int winlines = 20;
156:
157: kvm_t *kd;
158:
159: #define FORKSTAT 0x01
160: #define INTRSTAT 0x02
161: #define MEMSTAT 0x04
162: #define SUMSTAT 0x08
163: #define TIMESTAT 0x10
164: #define VMSTAT 0x20
165:
1.10 deraadt 166: void cpustats __P((void));
167: void dkstats __P((void));
168: void dointr __P((void));
169: void domem __P((void));
170: void dosum __P((void));
171: void dovmstat __P((u_int, int));
172: void kread __P((int, void *, size_t));
173: void usage __P((void));
174: void dotimes __P((void));
175: void doforkst __P((void));
1.21 millert 176: void printhdr __P((void));
1.1 deraadt 177:
1.10 deraadt 178: char **choosedrives __P((char **));
179:
180: /* Namelist and memory file names. */
181: char *nlistf, *memf;
1.6 tholo 182:
1.21 millert 183: int
1.1 deraadt 184: main(argc, argv)
185: register int argc;
186: register char **argv;
187: {
188: extern int optind;
189: extern char *optarg;
190: register int c, todo;
191: u_int interval;
192: int reps;
1.25 deraadt 193: char errbuf[_POSIX2_LINE_MAX];
1.1 deraadt 194:
195: memf = nlistf = NULL;
196: interval = reps = todo = 0;
1.16 millert 197: while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != -1) {
1.1 deraadt 198: switch (c) {
199: case 'c':
200: reps = atoi(optarg);
201: break;
202: case 'f':
203: todo |= FORKSTAT;
204: break;
205: case 'i':
206: todo |= INTRSTAT;
207: break;
208: case 'M':
209: memf = optarg;
210: break;
211: case 'm':
212: todo |= MEMSTAT;
213: break;
214: case 'N':
215: nlistf = optarg;
216: break;
217: case 's':
218: todo |= SUMSTAT;
219: break;
220: case 't':
221: todo |= TIMESTAT;
222: break;
223: case 'w':
224: interval = atoi(optarg);
225: break;
226: case '?':
227: default:
228: usage();
229: }
230: }
231: argc -= optind;
232: argv += optind;
233:
234: if (todo == 0)
235: todo = VMSTAT;
236:
237: /*
238: * Discard setgid privileges if not the running kernel so that bad
239: * guys can't print interesting stuff from kernel memory.
240: */
1.15 tholo 241: if (nlistf != NULL || memf != NULL) {
242: setegid(getgid());
1.1 deraadt 243: setgid(getgid());
1.15 tholo 244: }
1.1 deraadt 245:
1.25 deraadt 246: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
1.1 deraadt 247: if (kd == 0) {
248: (void)fprintf(stderr,
249: "vmstat: kvm_openfiles: %s\n", errbuf);
250: exit(1);
251: }
252:
253: if ((c = kvm_nlist(kd, namelist)) != 0) {
1.25 deraadt 254:
255: setegid(getgid());
256: setgid(getgid());
257:
1.1 deraadt 258: if (c > 0) {
259: (void)fprintf(stderr,
260: "vmstat: undefined symbols:");
261: for (c = 0;
262: c < sizeof(namelist)/sizeof(namelist[0]); c++)
263: if (namelist[c].n_type == 0)
264: fprintf(stderr, " %s",
265: namelist[c].n_name);
266: (void)fputc('\n', stderr);
267: } else
268: (void)fprintf(stderr, "vmstat: kvm_nlist: %s\n",
269: kvm_geterr(kd));
270: exit(1);
271: }
272:
273: if (todo & VMSTAT) {
274: struct winsize winsize;
275:
1.6 tholo 276: dkinit(0); /* Initialize disk stats, no disks selected. */
277: argv = choosedrives(argv); /* Select disks. */
1.1 deraadt 278: winsize.ws_row = 0;
279: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize);
280: if (winsize.ws_row > 0)
281: winlines = winsize.ws_row;
282:
283: }
1.25 deraadt 284:
285: setegid(getgid());
286: setgid(getgid());
1.1 deraadt 287:
288: #define BACKWARD_COMPATIBILITY
289: #ifdef BACKWARD_COMPATIBILITY
290: if (*argv) {
291: interval = atoi(*argv);
292: if (*++argv)
293: reps = atoi(*argv);
294: }
295: #endif
296:
297: if (interval) {
298: if (!reps)
299: reps = -1;
300: } else if (reps)
301: interval = 1;
302:
303: if (todo & FORKSTAT)
304: doforkst();
305: if (todo & MEMSTAT)
306: domem();
307: if (todo & SUMSTAT)
308: dosum();
309: if (todo & TIMESTAT)
310: dotimes();
311: if (todo & INTRSTAT)
312: dointr();
313: if (todo & VMSTAT)
314: dovmstat(interval, reps);
315: exit(0);
316: }
317:
318: char **
1.6 tholo 319: choosedrives(argv)
1.1 deraadt 320: char **argv;
321: {
322: register int i;
323:
324: /*
325: * Choose drives to be displayed. Priority goes to (in order) drives
326: * supplied as arguments, default drives. If everything isn't filled
327: * in and there are drives not taken care of, display the first few
328: * that fit.
329: */
330: #define BACKWARD_COMPATIBILITY
331: for (ndrives = 0; *argv; ++argv) {
332: #ifdef BACKWARD_COMPATIBILITY
333: if (isdigit(**argv))
334: break;
335: #endif
336: for (i = 0; i < dk_ndrive; i++) {
337: if (strcmp(dr_name[i], *argv))
338: continue;
1.6 tholo 339: dk_select[i] = 1;
1.1 deraadt 340: ++ndrives;
341: break;
342: }
343: }
344: for (i = 0; i < dk_ndrive && ndrives < 4; i++) {
1.6 tholo 345: if (dk_select[i])
1.1 deraadt 346: continue;
1.6 tholo 347: dk_select[i] = 1;
1.1 deraadt 348: ++ndrives;
349: }
350: return(argv);
351: }
352:
1.19 deraadt 353: time_t
1.1 deraadt 354: getuptime()
355: {
1.11 deraadt 356: static time_t now;
357: static struct timeval boottime;
1.1 deraadt 358: time_t uptime;
359:
1.11 deraadt 360: if (boottime.tv_sec == 0)
1.1 deraadt 361: kread(X_BOOTTIME, &boottime, sizeof(boottime));
362: (void)time(&now);
1.11 deraadt 363: uptime = now - boottime.tv_sec;
1.1 deraadt 364: if (uptime <= 0 || uptime > 60*60*24*365*10) {
365: (void)fprintf(stderr,
366: "vmstat: time makes no sense; namelist must be wrong.\n");
367: exit(1);
368: }
369: return(uptime);
370: }
371:
372: int hz, hdrcnt;
373:
374: void
375: dovmstat(interval, reps)
376: u_int interval;
377: int reps;
378: {
379: struct vmtotal total;
380: time_t uptime, halfuptime;
381: void needhdr();
382: int mib[2];
383: size_t size;
384:
385: uptime = getuptime();
386: halfuptime = uptime / 2;
387: (void)signal(SIGCONT, needhdr);
388:
389: if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0)
390: kread(X_STATHZ, &hz, sizeof(hz));
391: if (!hz)
392: kread(X_HZ, &hz, sizeof(hz));
393:
394: for (hdrcnt = 1;;) {
395: if (!--hdrcnt)
396: printhdr();
1.6 tholo 397: /* Read new disk statistics */
398: dkreadstats();
1.29 art 399: #ifdef UVM
400: kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
401: #else
1.1 deraadt 402: kread(X_SUM, &sum, sizeof(sum));
1.29 art 403: #endif
1.1 deraadt 404: size = sizeof(total);
405: mib[0] = CTL_VM;
406: mib[1] = VM_METER;
407: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
408: printf("Can't get kerninfo: %s\n", strerror(errno));
409: bzero(&total, sizeof(total));
410: }
1.22 millert 411: (void)printf("%2u%2u%2u",
1.1 deraadt 412: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.29 art 413: #define rate(x) (((x) + halfuptime) / uptime) /* round */
414: #ifdef UVM
415: #define pgtok(a) ((a) * ((int)uvmexp.pagesize >> 10))
416: #else
1.22 millert 417: #define pgtok(a) ((a) * ((int)sum.v_page_size >> 10))
1.29 art 418: #endif
1.22 millert 419: (void)printf("%6u%6u ",
1.1 deraadt 420: pgtok(total.t_avm), pgtok(total.t_free));
1.29 art 421: #ifdef UVM
422: (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
423: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
424: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
425: (void)printf("%3u %3u ",
426: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
427: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
428: dkstats();
429: (void)printf("%4u %4u %3u ",
430: rate(uvmexp.intrs - ouvmexp.intrs),
431: rate(uvmexp.syscalls - ouvmexp.syscalls),
432: rate(uvmexp.swtch - ouvmexp.swtch));
433: #else
1.21 millert 434: (void)printf("%4u ", rate(sum.v_faults - osum.v_faults));
435: (void)printf("%3u ",
1.1 deraadt 436: rate(sum.v_reactivated - osum.v_reactivated));
1.21 millert 437: (void)printf("%3u ", rate(sum.v_pageins - osum.v_pageins));
438: (void)printf("%3u %3u ",
1.1 deraadt 439: rate(sum.v_pageouts - osum.v_pageouts), 0);
1.21 millert 440: (void)printf("%3u ", rate(sum.v_scan - osum.v_scan));
1.1 deraadt 441: dkstats();
1.21 millert 442: (void)printf("%4u %4u %3u ",
1.1 deraadt 443: rate(sum.v_intr - osum.v_intr),
444: rate(sum.v_syscall - osum.v_syscall),
445: rate(sum.v_swtch - osum.v_swtch));
1.29 art 446: #endif
1.1 deraadt 447: cpustats();
448: (void)printf("\n");
449: (void)fflush(stdout);
450: if (reps >= 0 && --reps <= 0)
451: break;
1.29 art 452: ouvmexp = uvmexp;
1.1 deraadt 453: uptime = interval;
454: /*
455: * We round upward to avoid losing low-frequency events
456: * (i.e., >= 1 per interval but < 1 per second).
457: */
1.14 deraadt 458: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 459: (void)sleep(interval);
460: }
461: }
462:
1.21 millert 463: void
1.1 deraadt 464: printhdr()
465: {
466: register int i;
467:
468: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 469: if (ndrives > 0)
470: (void)printf("%s %*sfaults cpu\n",
471: ((ndrives > 1) ? "disks" : "disk"),
472: ((ndrives > 1) ? ndrives * 3 - 4 : 0), "");
1.1 deraadt 473: else
1.6 tholo 474: (void)printf("%*s faults cpu\n",
475: ndrives * 3, "");
476:
1.1 deraadt 477: (void)printf(" r b w avm fre flt re pi po fr sr ");
478: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 479: if (dk_select[i])
1.1 deraadt 480: (void)printf("%c%c ", dr_name[i][0],
481: dr_name[i][strlen(dr_name[i]) - 1]);
482: (void)printf(" in sy cs us sy id\n");
483: hdrcnt = winlines - 2;
484: }
485:
486: /*
487: * Force a header to be prepended to the next output.
488: */
489: void
490: needhdr()
491: {
492:
493: hdrcnt = 1;
494: }
495:
496: void
497: dotimes()
498: {
499: u_int pgintime, rectime;
500:
1.12 tholo 501: pgintime = 0;
502: rectime = 0;
1.29 art 503: #ifdef UVM
504: kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
505: (void)printf("%u reactivates, %u total time (usec)\n",
506: uvmexp.pdreact, rectime);
507: (void)printf("average: %u usec / reclaim\n", rectime / uvmexp.pdreact);
508: (void)printf("\n");
509: (void)printf("%u page ins, %u total time (msec)\n",
510: uvmexp.pageins, pgintime / 10);
511: (void)printf("average: %8.1f msec / page in\n",
512: pgintime / (uvmexp.pageins * 10.0));
513: #else
1.1 deraadt 514: kread(X_SUM, &sum, sizeof(sum));
1.12 tholo 515: (void)printf("%u reactivates, %u total time (usec)\n",
516: sum.v_reactivated, rectime);
517: (void)printf("average: %u usec / reclaim\n", rectime / sum.v_reactivated);
1.1 deraadt 518: (void)printf("\n");
519: (void)printf("%u page ins, %u total time (msec)\n",
1.12 tholo 520: sum.v_pageins, pgintime / 10);
1.1 deraadt 521: (void)printf("average: %8.1f msec / page in\n",
1.12 tholo 522: pgintime / (sum.v_pageins * 10.0));
1.29 art 523: #endif
1.1 deraadt 524: }
525:
1.21 millert 526: int
1.1 deraadt 527: pct(top, bot)
528: long top, bot;
529: {
530: long ans;
531:
532: if (bot == 0)
533: return(0);
534: ans = (quad_t)top * 100 / bot;
535: return (ans);
536: }
537:
538: #define PCT(top, bot) pct((long)(top), (long)(bot))
539:
540: void
541: dosum()
542: {
543: struct nchstats nchstats;
544: long nchtotal;
545:
1.29 art 546: #ifdef UVM
547: /*
548: * XXXART - We probably don't want to look like the old vmstat,
549: * The best would be just to print out everything in uvmexp
550: * XXXART - Just make it work now. Do it right later.
551: */
552: kread(X_UVMEXP, &uvmexp, sizeof(uvmexp));
553: (void)printf("%9u cpu context switches\n", uvmexp.swtch);
554: (void)printf("%9u device interrupts\n", uvmexp.intrs);
555: (void)printf("%9u software interrupts\n", uvmexp.softs);
556: (void)printf("%9u traps\n", uvmexp.traps);
557: (void)printf("%9u system calls\n", uvmexp.syscalls);
558: (void)printf("%9u total faults taken\n", uvmexp.faults);
559: (void)printf("%9u swap ins\n", uvmexp.swapins);
560: (void)printf("%9u swap outs\n", uvmexp.swapouts);
561: (void)printf("%9u pages swapped in\n", uvmexp.pgswapin);
562: (void)printf("%9u pages swapped out\n", uvmexp.pgswapout);
563: (void)printf("%9u page ins\n", uvmexp.pageins);
564: (void)printf("%9u page outs\n", uvmexp.pdpageouts);
565: (void)printf("%9u pages reactivated\n", uvmexp.pdreact);
566: (void)printf("%9u zero fill pages created\n", uvmexp.flt_przero);
567: (void)printf("%9u pages examined by the clock daemon\n", uvmexp.pdscans);
568: (void)printf("%9u revolutions of the clock hand\n", uvmexp.pdrevs);
569: #if 0
570: (void)printf("%9u total VM faults taken\n", uvmexp.vm_faults);
571: #endif
572: (void)printf("%9u copy-on-write faults\n", uvmexp.flt_acow);
573: (void)printf("%9u pages freed by daemon\n", uvmexp.pdfreed);
574: (void)printf("%9u pages free\n", uvmexp.free);
575: (void)printf("%9u pages wired down\n", uvmexp.wired);
576: (void)printf("%9u pages active\n", uvmexp.active);
577: (void)printf("%9u pages inactive\n", uvmexp.inactive);
578: (void)printf("%9u bytes per page\n", uvmexp.pagesize);
579: #else
1.1 deraadt 580: kread(X_SUM, &sum, sizeof(sum));
581: (void)printf("%9u cpu context switches\n", sum.v_swtch);
582: (void)printf("%9u device interrupts\n", sum.v_intr);
583: (void)printf("%9u software interrupts\n", sum.v_soft);
584: (void)printf("%9u traps\n", sum.v_trap);
585: (void)printf("%9u system calls\n", sum.v_syscall);
586: (void)printf("%9u total faults taken\n", sum.v_faults);
587: (void)printf("%9u swap ins\n", sum.v_swpin);
588: (void)printf("%9u swap outs\n", sum.v_swpout);
589: (void)printf("%9u pages swapped in\n", sum.v_pswpin / CLSIZE);
590: (void)printf("%9u pages swapped out\n", sum.v_pswpout / CLSIZE);
591: (void)printf("%9u page ins\n", sum.v_pageins);
592: (void)printf("%9u page outs\n", sum.v_pageouts);
593: (void)printf("%9u pages paged in\n", sum.v_pgpgin);
594: (void)printf("%9u pages paged out\n", sum.v_pgpgout);
595: (void)printf("%9u pages reactivated\n", sum.v_reactivated);
596: (void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
597: (void)printf("%9u zero fill pages created\n", sum.v_nzfod / CLSIZE);
598: (void)printf("%9u zero fill page faults\n", sum.v_zfod / CLSIZE);
599: (void)printf("%9u pages examined by the clock daemon\n", sum.v_scan);
600: (void)printf("%9u revolutions of the clock hand\n", sum.v_rev);
601: (void)printf("%9u VM object cache lookups\n", sum.v_lookups);
602: (void)printf("%9u VM object hits\n", sum.v_hits);
603: (void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
604: (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
605: (void)printf("%9u pages freed by daemon\n", sum.v_dfree);
606: (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
607: (void)printf("%9u pages free\n", sum.v_free_count);
608: (void)printf("%9u pages wired down\n", sum.v_wire_count);
609: (void)printf("%9u pages active\n", sum.v_active_count);
610: (void)printf("%9u pages inactive\n", sum.v_inactive_count);
611: (void)printf("%9u bytes per page\n", sum.v_page_size);
1.29 art 612: #endif
613:
1.1 deraadt 614: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
615: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
616: nchstats.ncs_badhits + nchstats.ncs_falsehits +
617: nchstats.ncs_miss + nchstats.ncs_long;
618: (void)printf("%9ld total name lookups\n", nchtotal);
619: (void)printf(
1.12 tholo 620: "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-directory\n",
1.1 deraadt 621: "", PCT(nchstats.ncs_goodhits, nchtotal),
622: PCT(nchstats.ncs_neghits, nchtotal),
623: PCT(nchstats.ncs_pass2, nchtotal));
624: (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
625: PCT(nchstats.ncs_badhits, nchtotal),
626: PCT(nchstats.ncs_falsehits, nchtotal),
627: PCT(nchstats.ncs_long, nchtotal));
628: }
629:
630: void
631: doforkst()
632: {
633: struct forkstat fks;
634:
635: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
636: (void)printf("%d forks, %d pages, average %.2f\n",
637: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
638: (void)printf("%d vforks, %d pages, average %.2f\n",
1.12 tholo 639: fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
640: (void)printf("%d rforks, %d pages, average %.2f\n",
641: fks.cntrfork, fks.sizrfork, (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
1.1 deraadt 642: }
643:
644: void
645: dkstats()
646: {
647: register int dn, state;
648: double etime;
649:
1.6 tholo 650: /* Calculate disk stat deltas. */
651: dkswap();
1.1 deraadt 652: etime = 0;
653: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 654: etime += cur.cp_time[state];
1.1 deraadt 655: }
656: if (etime == 0)
657: etime = 1;
658: etime /= hz;
659: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 660: if (!dk_select[dn])
1.1 deraadt 661: continue;
1.6 tholo 662: (void)printf("%2.0f ", cur.dk_xfer[dn] / etime);
1.1 deraadt 663: }
664: }
665:
666: void
667: cpustats()
668: {
669: register int state;
670: double pct, total;
671:
672: total = 0;
673: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 674: total += cur.cp_time[state];
1.1 deraadt 675: if (total)
676: pct = 100 / total;
677: else
678: pct = 0;
1.6 tholo 679: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pct);
680: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pct);
681: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct);
1.1 deraadt 682: }
683:
1.28 espie 684: #if defined(__pc532__)
1.1 deraadt 685: /* To get struct iv ...*/
686: #define _KERNEL
687: #include <machine/psl.h>
688: #undef _KERNEL
689: void
690: dointr()
691: {
1.19 deraadt 692: register long i, j, inttotal;
693: time_t uptime;
1.1 deraadt 694: static char iname[64];
695: struct iv ivt[32], *ivp = ivt;
696:
697: iname[63] = '\0';
698: uptime = getuptime();
699: kread(X_IVT, ivp, sizeof(ivt));
700:
701: for (i = 0; i < 2; i++) {
702: (void)printf("%sware interrupts:\n", i ? "\nsoft" : "hard");
1.27 alex 703: (void)printf("interrupt total rate\n");
1.1 deraadt 704: inttotal = 0;
705: for (j = 0; j < 16; j++, ivp++) {
706: if (ivp->iv_vec && ivp->iv_use && ivp->iv_cnt) {
707: if (kvm_read(kd, (u_long)ivp->iv_use, iname, 63) != 63) {
708: (void)fprintf(stderr, "vmstat: iv_use: %s\n",
709: kvm_geterr(kd));
710: exit(1);
711: }
1.27 alex 712: (void)printf("%-12s %10ld %8ld\n", iname,
1.1 deraadt 713: ivp->iv_cnt, ivp->iv_cnt / uptime);
714: inttotal += ivp->iv_cnt;
715: }
716: }
1.27 alex 717: (void)printf("Total %10ld %8ld\n",
1.1 deraadt 718: inttotal, inttotal / uptime);
719: }
1.12 tholo 720: }
1.28 espie 721: #elif defined(__i386__)
1.12 tholo 722: /* To get struct intrhand */
1.13 tholo 723: #define _KERNEL
1.12 tholo 724: #include <machine/psl.h>
1.13 tholo 725: #undef _KERNEL
1.12 tholo 726: void
727: dointr()
728: {
729: struct intrhand *intrhand[16], *ihp, ih;
1.19 deraadt 730: long inttotal;
731: time_t uptime;
1.12 tholo 732: int intrstray[16];
733: char iname[17];
734: int i;
735:
736: iname[16] = '\0';
737: uptime = getuptime();
738: kread(X_INTRHAND, intrhand, sizeof(intrhand));
739: kread(X_INTRSTRAY, intrstray, sizeof(intrstray));
740:
1.27 alex 741: (void)printf("interrupt total rate\n");
1.12 tholo 742: inttotal = 0;
743: for (i = 0; i < 16; i++) {
744: ihp = intrhand[i];
745: while (ihp) {
746: if (kvm_read(kd, (u_long)ihp, &ih, sizeof(ih)) != sizeof(ih))
747: errx(1, "vmstat: ih: %s", kvm_geterr(kd));
748: if (kvm_read(kd, (u_long)ih.ih_what, iname, 16) != 16)
749: errx(1, "vmstat: ih_what: %s", kvm_geterr(kd));
1.27 alex 750: printf("%-16.16s %10ld %8ld\n", iname, ih.ih_count, ih.ih_count / uptime);
1.12 tholo 751: inttotal += ih.ih_count;
752: ihp = ih.ih_next;
753: }
754: }
755: for (i = 0; i < 16; i++)
756: if (intrstray[i]) {
1.27 alex 757: printf("Stray irq %-2d %10d %8d\n",
1.12 tholo 758: i, intrstray[i], intrstray[i] / uptime);
759: inttotal += intrstray[i];
760: }
1.27 alex 761: printf("Total %10ld %8ld\n", inttotal, inttotal / uptime);
1.1 deraadt 762: }
763: #else
764: void
765: dointr()
766: {
1.19 deraadt 767: register long *intrcnt, inttotal;
768: time_t uptime;
1.1 deraadt 769: register int nintr, inamlen;
770: register char *intrname;
1.9 deraadt 771: struct evcntlist allevents;
772: struct evcnt evcnt, *evptr;
1.1 deraadt 773: struct device dev;
774:
775: uptime = getuptime();
776: nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value;
777: inamlen =
778: namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value;
779: intrcnt = malloc((size_t)nintr);
780: intrname = malloc((size_t)inamlen);
781: if (intrcnt == NULL || intrname == NULL) {
782: (void)fprintf(stderr, "vmstat: %s.\n", strerror(errno));
783: exit(1);
784: }
785: kread(X_INTRCNT, intrcnt, (size_t)nintr);
786: kread(X_INTRNAMES, intrname, (size_t)inamlen);
1.27 alex 787: (void)printf("interrupt total rate\n");
1.1 deraadt 788: inttotal = 0;
789: nintr /= sizeof(long);
790: while (--nintr >= 0) {
791: if (*intrcnt)
1.27 alex 792: (void)printf("%-14s %12ld %8ld\n", intrname,
1.1 deraadt 793: *intrcnt, *intrcnt / uptime);
794: intrname += strlen(intrname) + 1;
795: inttotal += *intrcnt++;
796: }
797: kread(X_ALLEVENTS, &allevents, sizeof allevents);
1.9 deraadt 798: evptr = allevents.tqh_first;
799: while (evptr) {
800: if (kvm_read(kd, (long)evptr, (void *)&evcnt,
1.1 deraadt 801: sizeof evcnt) != sizeof evcnt) {
802: (void)fprintf(stderr, "vmstat: event chain trashed\n",
803: kvm_geterr(kd));
804: exit(1);
805: }
806: if (strcmp(evcnt.ev_name, "intr") == 0) {
807: if (kvm_read(kd, (long)evcnt.ev_dev, (void *)&dev,
808: sizeof dev) != sizeof dev) {
809: (void)fprintf(stderr, "vmstat: event chain trashed\n",
810: kvm_geterr(kd));
811: exit(1);
812: }
813: if (evcnt.ev_count)
1.27 alex 814: (void)printf("%-14s %12ld %8ld\n", dev.dv_xname,
1.1 deraadt 815: evcnt.ev_count, evcnt.ev_count / uptime);
816: inttotal += evcnt.ev_count++;
817: }
1.9 deraadt 818: evptr = evcnt.ev_list.tqe_next;
1.1 deraadt 819: }
1.27 alex 820: (void)printf("Total %12ld %8ld\n", inttotal, inttotal / uptime);
1.1 deraadt 821: }
822: #endif
823:
824: /*
825: * These names are defined in <sys/malloc.h>.
826: */
827: char *kmemnames[] = INITKMEMNAMES;
828:
829: void
830: domem()
831: {
832: register struct kmembuckets *kp;
833: register struct kmemstats *ks;
834: register int i, j;
835: int len, size, first;
836: long totuse = 0, totfree = 0, totreq = 0;
837: char *name;
838: struct kmemstats kmemstats[M_LAST];
839: struct kmembuckets buckets[MINBUCKET + 16];
840:
841: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.18 kstailey 842: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
843: i++, kp++) {
1.1 deraadt 844: if (kp->kb_calls == 0)
845: continue;
1.18 kstailey 846: if (first) {
847: (void)printf("Memory statistics by bucket size\n");
848: (void)printf(
849: " Size In Use Free Requests HighWater Couldfree\n");
850: first = 0;
851: }
1.1 deraadt 852: size = 1 << i;
853: (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size,
854: kp->kb_total - kp->kb_totalfree,
855: kp->kb_totalfree, kp->kb_calls,
856: kp->kb_highwat, kp->kb_couldfree);
857: totfree += size * kp->kb_totalfree;
1.18 kstailey 858: }
859:
860: /*
861: * If kmem statistics are not being gathered by the kernel,
862: * first will still be 1.
863: */
864: if (first) {
865: printf(
866: "Kmem statistics are not being gathered by the kernel.\n");
867: return;
1.1 deraadt 868: }
869:
870: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
871: (void)printf("\nMemory usage type by bucket size\n");
872: (void)printf(" Size Type(s)\n");
873: kp = &buckets[MINBUCKET];
874: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
875: if (kp->kb_calls == 0)
876: continue;
877: first = 1;
878: len = 8;
879: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
880: if (ks->ks_calls == 0)
881: continue;
882: if ((ks->ks_size & j) == 0)
883: continue;
884: name = kmemnames[i] ? kmemnames[i] : "undefined";
885: len += 2 + strlen(name);
886: if (first)
887: printf("%8d %s", j, name);
888: else
889: printf(",");
890: if (len >= 80) {
891: printf("\n\t ");
892: len = 10 + strlen(name);
893: }
894: if (!first)
895: printf(" %s", name);
896: first = 0;
897: }
898: printf("\n");
899: }
900:
901: (void)printf(
1.26 deraadt 902: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 903: (void)printf(
1.26 deraadt 904: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 905: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
906: if (ks->ks_calls == 0)
907: continue;
1.24 mickey 908: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 909: kmemnames[i] ? kmemnames[i] : "undefined",
910: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
911: (ks->ks_maxused + 1023) / 1024,
912: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
913: ks->ks_limblocks, ks->ks_mapblocks);
914: first = 1;
915: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
916: if ((ks->ks_size & j) == 0)
917: continue;
918: if (first)
919: printf(" %d", j);
920: else
921: printf(",%d", j);
922: first = 0;
923: }
924: printf("\n");
925: totuse += ks->ks_memuse;
926: totreq += ks->ks_calls;
927: }
928: (void)printf("\nMemory Totals: In Use Free Requests\n");
929: (void)printf(" %7ldK %6ldK %8ld\n",
930: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
931: }
932:
933: /*
934: * kread reads something from the kernel, given its nlist index.
935: */
936: void
937: kread(nlx, addr, size)
938: int nlx;
939: void *addr;
940: size_t size;
941: {
942: char *sym;
943:
944: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
945: sym = namelist[nlx].n_name;
946: if (*sym == '_')
947: ++sym;
948: (void)fprintf(stderr,
949: "vmstat: symbol %s not defined\n", sym);
950: exit(1);
951: }
952: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
953: sym = namelist[nlx].n_name;
954: if (*sym == '_')
955: ++sym;
956: (void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd));
957: exit(1);
958: }
959: }
960:
961: void
962: usage()
963: {
964: (void)fprintf(stderr,
965: "usage: vmstat [-fimst] [-c count] [-M core] \
966: [-N system] [-w wait] [disks]\n");
967: exit(1);
968: }
969:
![[BACK]](/icons/back.gif){kind=icon}
Return to vmstat.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / vmstat