Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.26
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.26 ! deraadt 2: /* $OpenBSD: vmstat.c,v 1.25 1998/07/08 22:14:18 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.
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:
79: struct nlist namelist[] = {
80: #define X_CPTIME 0
81: { "_cp_time" },
1.23 deraadt 82: #define X_SUM 1
1.1 deraadt 83: { "_cnt" },
1.23 deraadt 84: #define X_BOOTTIME 2
1.1 deraadt 85: { "_boottime" },
1.23 deraadt 86: #define X_HZ 3
1.1 deraadt 87: { "_hz" },
1.23 deraadt 88: #define X_STATHZ 4
1.1 deraadt 89: { "_stathz" },
1.23 deraadt 90: #define X_NCHSTATS 5
1.1 deraadt 91: { "_nchstats" },
1.23 deraadt 92: #define X_INTRNAMES 6
1.1 deraadt 93: { "_intrnames" },
1.23 deraadt 94: #define X_EINTRNAMES 7
1.1 deraadt 95: { "_eintrnames" },
1.23 deraadt 96: #define X_INTRCNT 8
1.1 deraadt 97: { "_intrcnt" },
1.23 deraadt 98: #define X_EINTRCNT 9
1.1 deraadt 99: { "_eintrcnt" },
1.23 deraadt 100: #define X_KMEMSTAT 10
1.1 deraadt 101: { "_kmemstats" },
1.23 deraadt 102: #define X_KMEMBUCKETS 11
1.1 deraadt 103: { "_bucket" },
1.23 deraadt 104: #define X_ALLEVENTS 12
1.1 deraadt 105: { "_allevents" },
1.23 deraadt 106: #define X_FORKSTAT 13
1.12 tholo 107: { "_forkstat" },
1.1 deraadt 108: #ifdef notdef
1.23 deraadt 109: #define X_DEFICIT 14
1.1 deraadt 110: { "_deficit" },
1.23 deraadt 111: #define X_REC 15
1.1 deraadt 112: { "_rectime" },
1.23 deraadt 113: #define X_PGIN 16
1.1 deraadt 114: { "_pgintime" },
1.23 deraadt 115: #define X_XSTATS 17
1.1 deraadt 116: { "_xstats" },
1.23 deraadt 117: #define X_END 28
1.1 deraadt 118: #else
1.23 deraadt 119: #define X_END 14
1.1 deraadt 120: #endif
121: #ifdef tahoe
122: #define X_VBDINIT (X_END)
123: { "_vbdinit" },
124: #define X_CKEYSTATS (X_END+1)
125: { "_ckeystats" },
126: #define X_DKEYSTATS (X_END+2)
127: { "_dkeystats" },
128: #endif
129: #if defined(pc532)
130: #define X_IVT (X_END)
131: { "_ivt" },
132: #endif
1.12 tholo 133: #if defined(i386)
134: #define X_INTRHAND (X_END)
135: { "_intrhand" },
136: #define X_INTRSTRAY (X_END+1)
137: { "_intrstray" },
138: #endif
1.1 deraadt 139: { "" },
140: };
141:
1.6 tholo 142: /* Objects defined in dkstats.c */
143: extern struct _disk cur;
1.10 deraadt 144: extern char **dr_name;
145: extern int *dk_select, dk_ndrive;
1.1 deraadt 146:
147: struct vmmeter sum, osum;
1.6 tholo 148: int ndrives;
1.1 deraadt 149:
150: int winlines = 20;
151:
152: kvm_t *kd;
153:
154: #define FORKSTAT 0x01
155: #define INTRSTAT 0x02
156: #define MEMSTAT 0x04
157: #define SUMSTAT 0x08
158: #define TIMESTAT 0x10
159: #define VMSTAT 0x20
160:
1.10 deraadt 161: void cpustats __P((void));
162: void dkstats __P((void));
163: void dointr __P((void));
164: void domem __P((void));
165: void dosum __P((void));
166: void dovmstat __P((u_int, int));
167: void kread __P((int, void *, size_t));
168: void usage __P((void));
169: void dotimes __P((void));
170: void doforkst __P((void));
1.21 millert 171: void printhdr __P((void));
1.1 deraadt 172:
1.10 deraadt 173: char **choosedrives __P((char **));
174:
175: /* Namelist and memory file names. */
176: char *nlistf, *memf;
1.6 tholo 177:
1.21 millert 178: int
1.1 deraadt 179: main(argc, argv)
180: register int argc;
181: register char **argv;
182: {
183: extern int optind;
184: extern char *optarg;
185: register int c, todo;
186: u_int interval;
187: int reps;
1.25 deraadt 188: char errbuf[_POSIX2_LINE_MAX];
1.1 deraadt 189:
190: memf = nlistf = NULL;
191: interval = reps = todo = 0;
1.16 millert 192: while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != -1) {
1.1 deraadt 193: switch (c) {
194: case 'c':
195: reps = atoi(optarg);
196: break;
197: case 'f':
198: todo |= FORKSTAT;
199: break;
200: case 'i':
201: todo |= INTRSTAT;
202: break;
203: case 'M':
204: memf = optarg;
205: break;
206: case 'm':
207: todo |= MEMSTAT;
208: break;
209: case 'N':
210: nlistf = optarg;
211: break;
212: case 's':
213: todo |= SUMSTAT;
214: break;
215: case 't':
216: todo |= TIMESTAT;
217: break;
218: case 'w':
219: interval = atoi(optarg);
220: break;
221: case '?':
222: default:
223: usage();
224: }
225: }
226: argc -= optind;
227: argv += optind;
228:
229: if (todo == 0)
230: todo = VMSTAT;
231:
232: /*
233: * Discard setgid privileges if not the running kernel so that bad
234: * guys can't print interesting stuff from kernel memory.
235: */
1.15 tholo 236: if (nlistf != NULL || memf != NULL) {
237: setegid(getgid());
1.1 deraadt 238: setgid(getgid());
1.15 tholo 239: }
1.1 deraadt 240:
1.25 deraadt 241: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
1.1 deraadt 242: if (kd == 0) {
243: (void)fprintf(stderr,
244: "vmstat: kvm_openfiles: %s\n", errbuf);
245: exit(1);
246: }
247:
248: if ((c = kvm_nlist(kd, namelist)) != 0) {
1.25 deraadt 249:
250: setegid(getgid());
251: setgid(getgid());
252:
1.1 deraadt 253: if (c > 0) {
254: (void)fprintf(stderr,
255: "vmstat: undefined symbols:");
256: for (c = 0;
257: c < sizeof(namelist)/sizeof(namelist[0]); c++)
258: if (namelist[c].n_type == 0)
259: fprintf(stderr, " %s",
260: namelist[c].n_name);
261: (void)fputc('\n', stderr);
262: } else
263: (void)fprintf(stderr, "vmstat: kvm_nlist: %s\n",
264: kvm_geterr(kd));
265: exit(1);
266: }
267:
268: if (todo & VMSTAT) {
269: struct winsize winsize;
270:
1.6 tholo 271: dkinit(0); /* Initialize disk stats, no disks selected. */
272: argv = choosedrives(argv); /* Select disks. */
1.1 deraadt 273: winsize.ws_row = 0;
274: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize);
275: if (winsize.ws_row > 0)
276: winlines = winsize.ws_row;
277:
278: }
1.25 deraadt 279:
280: setegid(getgid());
281: setgid(getgid());
1.1 deraadt 282:
283: #define BACKWARD_COMPATIBILITY
284: #ifdef BACKWARD_COMPATIBILITY
285: if (*argv) {
286: interval = atoi(*argv);
287: if (*++argv)
288: reps = atoi(*argv);
289: }
290: #endif
291:
292: if (interval) {
293: if (!reps)
294: reps = -1;
295: } else if (reps)
296: interval = 1;
297:
298: if (todo & FORKSTAT)
299: doforkst();
300: if (todo & MEMSTAT)
301: domem();
302: if (todo & SUMSTAT)
303: dosum();
304: if (todo & TIMESTAT)
305: dotimes();
306: if (todo & INTRSTAT)
307: dointr();
308: if (todo & VMSTAT)
309: dovmstat(interval, reps);
310: exit(0);
311: }
312:
313: char **
1.6 tholo 314: choosedrives(argv)
1.1 deraadt 315: char **argv;
316: {
317: register int i;
318:
319: /*
320: * Choose drives to be displayed. Priority goes to (in order) drives
321: * supplied as arguments, default drives. If everything isn't filled
322: * in and there are drives not taken care of, display the first few
323: * that fit.
324: */
325: #define BACKWARD_COMPATIBILITY
326: for (ndrives = 0; *argv; ++argv) {
327: #ifdef BACKWARD_COMPATIBILITY
328: if (isdigit(**argv))
329: break;
330: #endif
331: for (i = 0; i < dk_ndrive; i++) {
332: if (strcmp(dr_name[i], *argv))
333: continue;
1.6 tholo 334: dk_select[i] = 1;
1.1 deraadt 335: ++ndrives;
336: break;
337: }
338: }
339: for (i = 0; i < dk_ndrive && ndrives < 4; i++) {
1.6 tholo 340: if (dk_select[i])
1.1 deraadt 341: continue;
1.6 tholo 342: dk_select[i] = 1;
1.1 deraadt 343: ++ndrives;
344: }
345: return(argv);
346: }
347:
1.19 deraadt 348: time_t
1.1 deraadt 349: getuptime()
350: {
1.11 deraadt 351: static time_t now;
352: static struct timeval boottime;
1.1 deraadt 353: time_t uptime;
354:
1.11 deraadt 355: if (boottime.tv_sec == 0)
1.1 deraadt 356: kread(X_BOOTTIME, &boottime, sizeof(boottime));
357: (void)time(&now);
1.11 deraadt 358: uptime = now - boottime.tv_sec;
1.1 deraadt 359: if (uptime <= 0 || uptime > 60*60*24*365*10) {
360: (void)fprintf(stderr,
361: "vmstat: time makes no sense; namelist must be wrong.\n");
362: exit(1);
363: }
364: return(uptime);
365: }
366:
367: int hz, hdrcnt;
368:
369: void
370: dovmstat(interval, reps)
371: u_int interval;
372: int reps;
373: {
374: struct vmtotal total;
375: time_t uptime, halfuptime;
376: void needhdr();
377: int mib[2];
378: size_t size;
379:
380: uptime = getuptime();
381: halfuptime = uptime / 2;
382: (void)signal(SIGCONT, needhdr);
383:
384: if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0)
385: kread(X_STATHZ, &hz, sizeof(hz));
386: if (!hz)
387: kread(X_HZ, &hz, sizeof(hz));
388:
389: for (hdrcnt = 1;;) {
390: if (!--hdrcnt)
391: printhdr();
1.6 tholo 392: /* Read new disk statistics */
393: dkreadstats();
1.1 deraadt 394: kread(X_SUM, &sum, sizeof(sum));
395: size = sizeof(total);
396: mib[0] = CTL_VM;
397: mib[1] = VM_METER;
398: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
399: printf("Can't get kerninfo: %s\n", strerror(errno));
400: bzero(&total, sizeof(total));
401: }
1.22 millert 402: (void)printf("%2u%2u%2u",
1.1 deraadt 403: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.22 millert 404: #define pgtok(a) ((a) * ((int)sum.v_page_size >> 10))
1.1 deraadt 405: #define rate(x) (((x) + halfuptime) / uptime) /* round */
1.22 millert 406: (void)printf("%6u%6u ",
1.1 deraadt 407: pgtok(total.t_avm), pgtok(total.t_free));
1.21 millert 408: (void)printf("%4u ", rate(sum.v_faults - osum.v_faults));
409: (void)printf("%3u ",
1.1 deraadt 410: rate(sum.v_reactivated - osum.v_reactivated));
1.21 millert 411: (void)printf("%3u ", rate(sum.v_pageins - osum.v_pageins));
412: (void)printf("%3u %3u ",
1.1 deraadt 413: rate(sum.v_pageouts - osum.v_pageouts), 0);
1.21 millert 414: (void)printf("%3u ", rate(sum.v_scan - osum.v_scan));
1.1 deraadt 415: dkstats();
1.21 millert 416: (void)printf("%4u %4u %3u ",
1.1 deraadt 417: rate(sum.v_intr - osum.v_intr),
418: rate(sum.v_syscall - osum.v_syscall),
419: rate(sum.v_swtch - osum.v_swtch));
420: cpustats();
421: (void)printf("\n");
422: (void)fflush(stdout);
423: if (reps >= 0 && --reps <= 0)
424: break;
425: osum = sum;
426: uptime = interval;
427: /*
428: * We round upward to avoid losing low-frequency events
429: * (i.e., >= 1 per interval but < 1 per second).
430: */
1.14 deraadt 431: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 432: (void)sleep(interval);
433: }
434: }
435:
1.21 millert 436: void
1.1 deraadt 437: printhdr()
438: {
439: register int i;
440:
441: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 442: if (ndrives > 0)
443: (void)printf("%s %*sfaults cpu\n",
444: ((ndrives > 1) ? "disks" : "disk"),
445: ((ndrives > 1) ? ndrives * 3 - 4 : 0), "");
1.1 deraadt 446: else
1.6 tholo 447: (void)printf("%*s faults cpu\n",
448: ndrives * 3, "");
449:
1.1 deraadt 450: (void)printf(" r b w avm fre flt re pi po fr sr ");
451: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 452: if (dk_select[i])
1.1 deraadt 453: (void)printf("%c%c ", dr_name[i][0],
454: dr_name[i][strlen(dr_name[i]) - 1]);
455: (void)printf(" in sy cs us sy id\n");
456: hdrcnt = winlines - 2;
457: }
458:
459: /*
460: * Force a header to be prepended to the next output.
461: */
462: void
463: needhdr()
464: {
465:
466: hdrcnt = 1;
467: }
468:
469: void
470: dotimes()
471: {
472: u_int pgintime, rectime;
473:
1.12 tholo 474: pgintime = 0;
475: rectime = 0;
1.1 deraadt 476: kread(X_SUM, &sum, sizeof(sum));
1.12 tholo 477: (void)printf("%u reactivates, %u total time (usec)\n",
478: sum.v_reactivated, rectime);
479: (void)printf("average: %u usec / reclaim\n", rectime / sum.v_reactivated);
1.1 deraadt 480: (void)printf("\n");
481: (void)printf("%u page ins, %u total time (msec)\n",
1.12 tholo 482: sum.v_pageins, pgintime / 10);
1.1 deraadt 483: (void)printf("average: %8.1f msec / page in\n",
1.12 tholo 484: pgintime / (sum.v_pageins * 10.0));
1.1 deraadt 485: }
486:
1.21 millert 487: int
1.1 deraadt 488: pct(top, bot)
489: long top, bot;
490: {
491: long ans;
492:
493: if (bot == 0)
494: return(0);
495: ans = (quad_t)top * 100 / bot;
496: return (ans);
497: }
498:
499: #define PCT(top, bot) pct((long)(top), (long)(bot))
500:
501: #if defined(tahoe)
502: #include <machine/cpu.h>
503: #endif
504:
505: void
506: dosum()
507: {
508: struct nchstats nchstats;
509: long nchtotal;
510: #if defined(tahoe)
511: struct keystats keystats;
512: #endif
513:
514: kread(X_SUM, &sum, sizeof(sum));
515: (void)printf("%9u cpu context switches\n", sum.v_swtch);
516: (void)printf("%9u device interrupts\n", sum.v_intr);
517: (void)printf("%9u software interrupts\n", sum.v_soft);
518: (void)printf("%9u traps\n", sum.v_trap);
519: (void)printf("%9u system calls\n", sum.v_syscall);
520: (void)printf("%9u total faults taken\n", sum.v_faults);
521: (void)printf("%9u swap ins\n", sum.v_swpin);
522: (void)printf("%9u swap outs\n", sum.v_swpout);
523: (void)printf("%9u pages swapped in\n", sum.v_pswpin / CLSIZE);
524: (void)printf("%9u pages swapped out\n", sum.v_pswpout / CLSIZE);
525: (void)printf("%9u page ins\n", sum.v_pageins);
526: (void)printf("%9u page outs\n", sum.v_pageouts);
527: (void)printf("%9u pages paged in\n", sum.v_pgpgin);
528: (void)printf("%9u pages paged out\n", sum.v_pgpgout);
529: (void)printf("%9u pages reactivated\n", sum.v_reactivated);
530: (void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
531: (void)printf("%9u zero fill pages created\n", sum.v_nzfod / CLSIZE);
532: (void)printf("%9u zero fill page faults\n", sum.v_zfod / CLSIZE);
533: (void)printf("%9u pages examined by the clock daemon\n", sum.v_scan);
534: (void)printf("%9u revolutions of the clock hand\n", sum.v_rev);
535: (void)printf("%9u VM object cache lookups\n", sum.v_lookups);
536: (void)printf("%9u VM object hits\n", sum.v_hits);
537: (void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
538: (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
539: (void)printf("%9u pages freed by daemon\n", sum.v_dfree);
540: (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
541: (void)printf("%9u pages free\n", sum.v_free_count);
542: (void)printf("%9u pages wired down\n", sum.v_wire_count);
543: (void)printf("%9u pages active\n", sum.v_active_count);
544: (void)printf("%9u pages inactive\n", sum.v_inactive_count);
545: (void)printf("%9u bytes per page\n", sum.v_page_size);
546: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
547: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
548: nchstats.ncs_badhits + nchstats.ncs_falsehits +
549: nchstats.ncs_miss + nchstats.ncs_long;
550: (void)printf("%9ld total name lookups\n", nchtotal);
551: (void)printf(
1.12 tholo 552: "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-directory\n",
1.1 deraadt 553: "", PCT(nchstats.ncs_goodhits, nchtotal),
554: PCT(nchstats.ncs_neghits, nchtotal),
555: PCT(nchstats.ncs_pass2, nchtotal));
556: (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
557: PCT(nchstats.ncs_badhits, nchtotal),
558: PCT(nchstats.ncs_falsehits, nchtotal),
559: PCT(nchstats.ncs_long, nchtotal));
560: #if defined(tahoe)
561: kread(X_CKEYSTATS, &keystats, sizeof(keystats));
562: (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n",
563: keystats.ks_allocs, "code cache keys allocated",
564: PCT(keystats.ks_allocfree, keystats.ks_allocs),
565: PCT(keystats.ks_norefs, keystats.ks_allocs),
566: PCT(keystats.ks_taken, keystats.ks_allocs),
567: PCT(keystats.ks_shared, keystats.ks_allocs));
568: kread(X_DKEYSTATS, &keystats, sizeof(keystats));
569: (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n",
570: keystats.ks_allocs, "data cache keys allocated",
571: PCT(keystats.ks_allocfree, keystats.ks_allocs),
572: PCT(keystats.ks_norefs, keystats.ks_allocs),
573: PCT(keystats.ks_taken, keystats.ks_allocs),
574: PCT(keystats.ks_shared, keystats.ks_allocs));
575: #endif
576: }
577:
578: void
579: doforkst()
580: {
581: struct forkstat fks;
582:
583: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
584: (void)printf("%d forks, %d pages, average %.2f\n",
585: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
586: (void)printf("%d vforks, %d pages, average %.2f\n",
1.12 tholo 587: fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
588: (void)printf("%d rforks, %d pages, average %.2f\n",
589: fks.cntrfork, fks.sizrfork, (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
1.1 deraadt 590: }
591:
592: void
593: dkstats()
594: {
595: register int dn, state;
596: double etime;
597:
1.6 tholo 598: /* Calculate disk stat deltas. */
599: dkswap();
1.1 deraadt 600: etime = 0;
601: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 602: etime += cur.cp_time[state];
1.1 deraadt 603: }
604: if (etime == 0)
605: etime = 1;
606: etime /= hz;
607: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 608: if (!dk_select[dn])
1.1 deraadt 609: continue;
1.6 tholo 610: (void)printf("%2.0f ", cur.dk_xfer[dn] / etime);
1.1 deraadt 611: }
612: }
613:
614: void
615: cpustats()
616: {
617: register int state;
618: double pct, total;
619:
620: total = 0;
621: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 622: total += cur.cp_time[state];
1.1 deraadt 623: if (total)
624: pct = 100 / total;
625: else
626: pct = 0;
1.6 tholo 627: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pct);
628: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pct);
629: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct);
1.1 deraadt 630: }
631:
632: #if defined(pc532)
633: /* To get struct iv ...*/
634: #define _KERNEL
635: #include <machine/psl.h>
636: #undef _KERNEL
637: void
638: dointr()
639: {
1.19 deraadt 640: register long i, j, inttotal;
641: time_t uptime;
1.1 deraadt 642: static char iname[64];
643: struct iv ivt[32], *ivp = ivt;
644:
645: iname[63] = '\0';
646: uptime = getuptime();
647: kread(X_IVT, ivp, sizeof(ivt));
648:
649: for (i = 0; i < 2; i++) {
650: (void)printf("%sware interrupts:\n", i ? "\nsoft" : "hard");
651: (void)printf("interrupt total rate\n");
652: inttotal = 0;
653: for (j = 0; j < 16; j++, ivp++) {
654: if (ivp->iv_vec && ivp->iv_use && ivp->iv_cnt) {
655: if (kvm_read(kd, (u_long)ivp->iv_use, iname, 63) != 63) {
656: (void)fprintf(stderr, "vmstat: iv_use: %s\n",
657: kvm_geterr(kd));
658: exit(1);
659: }
660: (void)printf("%-12s %8ld %8ld\n", iname,
661: ivp->iv_cnt, ivp->iv_cnt / uptime);
662: inttotal += ivp->iv_cnt;
663: }
664: }
1.3 deraadt 665: (void)printf("Total %8ld %8ld\n",
1.1 deraadt 666: inttotal, inttotal / uptime);
667: }
1.12 tholo 668: }
669: #elif defined(i386)
670: /* To get struct intrhand */
1.13 tholo 671: #define _KERNEL
1.12 tholo 672: #include <machine/psl.h>
1.13 tholo 673: #undef _KERNEL
1.12 tholo 674: void
675: dointr()
676: {
677: struct intrhand *intrhand[16], *ihp, ih;
1.19 deraadt 678: long inttotal;
679: time_t uptime;
1.12 tholo 680: int intrstray[16];
681: char iname[17];
682: int i;
683:
684: iname[16] = '\0';
685: uptime = getuptime();
686: kread(X_INTRHAND, intrhand, sizeof(intrhand));
687: kread(X_INTRSTRAY, intrstray, sizeof(intrstray));
688:
689: (void)printf("interrupt total rate\n");
690: inttotal = 0;
691: for (i = 0; i < 16; i++) {
692: ihp = intrhand[i];
693: while (ihp) {
694: if (kvm_read(kd, (u_long)ihp, &ih, sizeof(ih)) != sizeof(ih))
695: errx(1, "vmstat: ih: %s", kvm_geterr(kd));
696: if (kvm_read(kd, (u_long)ih.ih_what, iname, 16) != 16)
697: errx(1, "vmstat: ih_what: %s", kvm_geterr(kd));
698: printf("%-16.16s %8ld %8ld\n", iname, ih.ih_count, ih.ih_count / uptime);
699: inttotal += ih.ih_count;
700: ihp = ih.ih_next;
701: }
702: }
703: for (i = 0; i < 16; i++)
704: if (intrstray[i]) {
1.21 millert 705: printf("Stray irq %-2d %8d %8d\n",
1.12 tholo 706: i, intrstray[i], intrstray[i] / uptime);
707: inttotal += intrstray[i];
708: }
709: printf("Total %8ld %8ld\n", inttotal, inttotal / uptime);
1.1 deraadt 710: }
711: #else
712: void
713: dointr()
714: {
1.19 deraadt 715: register long *intrcnt, inttotal;
716: time_t uptime;
1.1 deraadt 717: register int nintr, inamlen;
718: register char *intrname;
1.9 deraadt 719: struct evcntlist allevents;
720: struct evcnt evcnt, *evptr;
1.1 deraadt 721: struct device dev;
722:
723: uptime = getuptime();
724: nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value;
725: inamlen =
726: namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value;
727: intrcnt = malloc((size_t)nintr);
728: intrname = malloc((size_t)inamlen);
729: if (intrcnt == NULL || intrname == NULL) {
730: (void)fprintf(stderr, "vmstat: %s.\n", strerror(errno));
731: exit(1);
732: }
733: kread(X_INTRCNT, intrcnt, (size_t)nintr);
734: kread(X_INTRNAMES, intrname, (size_t)inamlen);
735: (void)printf("interrupt total rate\n");
736: inttotal = 0;
737: nintr /= sizeof(long);
738: while (--nintr >= 0) {
739: if (*intrcnt)
740: (void)printf("%-14s %8ld %8ld\n", intrname,
741: *intrcnt, *intrcnt / uptime);
742: intrname += strlen(intrname) + 1;
743: inttotal += *intrcnt++;
744: }
745: kread(X_ALLEVENTS, &allevents, sizeof allevents);
1.9 deraadt 746: evptr = allevents.tqh_first;
747: while (evptr) {
748: if (kvm_read(kd, (long)evptr, (void *)&evcnt,
1.1 deraadt 749: sizeof evcnt) != sizeof evcnt) {
750: (void)fprintf(stderr, "vmstat: event chain trashed\n",
751: kvm_geterr(kd));
752: exit(1);
753: }
754: if (strcmp(evcnt.ev_name, "intr") == 0) {
755: if (kvm_read(kd, (long)evcnt.ev_dev, (void *)&dev,
756: sizeof dev) != sizeof dev) {
757: (void)fprintf(stderr, "vmstat: event chain trashed\n",
758: kvm_geterr(kd));
759: exit(1);
760: }
761: if (evcnt.ev_count)
762: (void)printf("%-14s %8ld %8ld\n", dev.dv_xname,
763: evcnt.ev_count, evcnt.ev_count / uptime);
764: inttotal += evcnt.ev_count++;
765: }
1.9 deraadt 766: evptr = evcnt.ev_list.tqe_next;
1.1 deraadt 767: }
768: (void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime);
769: }
770: #endif
771:
772: /*
773: * These names are defined in <sys/malloc.h>.
774: */
775: char *kmemnames[] = INITKMEMNAMES;
776:
777: void
778: domem()
779: {
780: register struct kmembuckets *kp;
781: register struct kmemstats *ks;
782: register int i, j;
783: int len, size, first;
784: long totuse = 0, totfree = 0, totreq = 0;
785: char *name;
786: struct kmemstats kmemstats[M_LAST];
787: struct kmembuckets buckets[MINBUCKET + 16];
788:
789: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.18 kstailey 790: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
791: i++, kp++) {
1.1 deraadt 792: if (kp->kb_calls == 0)
793: continue;
1.18 kstailey 794: if (first) {
795: (void)printf("Memory statistics by bucket size\n");
796: (void)printf(
797: " Size In Use Free Requests HighWater Couldfree\n");
798: first = 0;
799: }
1.1 deraadt 800: size = 1 << i;
801: (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size,
802: kp->kb_total - kp->kb_totalfree,
803: kp->kb_totalfree, kp->kb_calls,
804: kp->kb_highwat, kp->kb_couldfree);
805: totfree += size * kp->kb_totalfree;
1.18 kstailey 806: }
807:
808: /*
809: * If kmem statistics are not being gathered by the kernel,
810: * first will still be 1.
811: */
812: if (first) {
813: printf(
814: "Kmem statistics are not being gathered by the kernel.\n");
815: return;
1.1 deraadt 816: }
817:
818: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
819: (void)printf("\nMemory usage type by bucket size\n");
820: (void)printf(" Size Type(s)\n");
821: kp = &buckets[MINBUCKET];
822: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
823: if (kp->kb_calls == 0)
824: continue;
825: first = 1;
826: len = 8;
827: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
828: if (ks->ks_calls == 0)
829: continue;
830: if ((ks->ks_size & j) == 0)
831: continue;
832: name = kmemnames[i] ? kmemnames[i] : "undefined";
833: len += 2 + strlen(name);
834: if (first)
835: printf("%8d %s", j, name);
836: else
837: printf(",");
838: if (len >= 80) {
839: printf("\n\t ");
840: len = 10 + strlen(name);
841: }
842: if (!first)
843: printf(" %s", name);
844: first = 0;
845: }
846: printf("\n");
847: }
848:
849: (void)printf(
1.26 ! deraadt 850: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 851: (void)printf(
1.26 ! deraadt 852: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 853: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
854: if (ks->ks_calls == 0)
855: continue;
1.24 mickey 856: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 857: kmemnames[i] ? kmemnames[i] : "undefined",
858: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
859: (ks->ks_maxused + 1023) / 1024,
860: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
861: ks->ks_limblocks, ks->ks_mapblocks);
862: first = 1;
863: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
864: if ((ks->ks_size & j) == 0)
865: continue;
866: if (first)
867: printf(" %d", j);
868: else
869: printf(",%d", j);
870: first = 0;
871: }
872: printf("\n");
873: totuse += ks->ks_memuse;
874: totreq += ks->ks_calls;
875: }
876: (void)printf("\nMemory Totals: In Use Free Requests\n");
877: (void)printf(" %7ldK %6ldK %8ld\n",
878: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
879: }
880:
881: /*
882: * kread reads something from the kernel, given its nlist index.
883: */
884: void
885: kread(nlx, addr, size)
886: int nlx;
887: void *addr;
888: size_t size;
889: {
890: char *sym;
891:
892: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
893: sym = namelist[nlx].n_name;
894: if (*sym == '_')
895: ++sym;
896: (void)fprintf(stderr,
897: "vmstat: symbol %s not defined\n", sym);
898: exit(1);
899: }
900: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
901: sym = namelist[nlx].n_name;
902: if (*sym == '_')
903: ++sym;
904: (void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd));
905: exit(1);
906: }
907: }
908:
909: void
910: usage()
911: {
912: (void)fprintf(stderr,
913: "usage: vmstat [-fimst] [-c count] [-M core] \
914: [-N system] [-w wait] [disks]\n");
915: exit(1);
916: }
917:
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