Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.3
1.1 deraadt 1: /* $NetBSD: vmstat.c,v 1.27 1995/10/10 01:17:35 cgd Exp $ */
2:
3: /*
4: * Copyright (c) 1980, 1986, 1991, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by the University of
18: * California, Berkeley and its contributors.
19: * 4. Neither the name of the University nor the names of its contributors
20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: */
35:
36: #ifndef lint
37: static char copyright[] =
38: "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
39: The Regents of the University of California. All rights reserved.\n";
40: #endif /* not lint */
41:
42: #ifndef lint
43: #if 0
44: static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
45: #else
46: static char rcsid[] = "$NetBSD: vmstat.c,v 1.27 1995/10/10 01:17:35 cgd Exp $";
47: #endif
48: #endif /* not lint */
49:
50: #include <sys/param.h>
51: #include <sys/time.h>
52: #include <sys/proc.h>
53: #include <sys/user.h>
54: #include <sys/dkstat.h>
55: #include <sys/buf.h>
56: #include <sys/namei.h>
57: #include <sys/malloc.h>
58: #include <sys/fcntl.h>
59: #include <sys/ioctl.h>
60: #include <sys/sysctl.h>
61: #include <sys/device.h>
62: #include <vm/vm.h>
63: #include <time.h>
64: #include <nlist.h>
65: #include <kvm.h>
66: #include <errno.h>
67: #include <unistd.h>
68: #include <signal.h>
69: #include <stdio.h>
70: #include <ctype.h>
71: #include <stdlib.h>
72: #include <string.h>
73: #include <paths.h>
74: #include <limits.h>
75:
76: #define NEWVM /* XXX till old has been updated or purged */
77: struct nlist namelist[] = {
78: #define X_CPTIME 0
79: { "_cp_time" },
80: #define X_DK_NDRIVE 1
81: { "_dk_ndrive" },
82: #define X_SUM 2
83: { "_cnt" },
84: #define X_BOOTTIME 3
85: { "_boottime" },
86: #define X_DKXFER 4
87: { "_dk_xfer" },
88: #define X_HZ 5
89: { "_hz" },
90: #define X_STATHZ 6
91: { "_stathz" },
92: #define X_NCHSTATS 7
93: { "_nchstats" },
94: #define X_INTRNAMES 8
95: { "_intrnames" },
96: #define X_EINTRNAMES 9
97: { "_eintrnames" },
98: #define X_INTRCNT 10
99: { "_intrcnt" },
100: #define X_EINTRCNT 11
101: { "_eintrcnt" },
102: #define X_KMEMSTAT 12
103: { "_kmemstats" },
104: #define X_KMEMBUCKETS 13
105: { "_bucket" },
106: #define X_ALLEVENTS 14
107: { "_allevents" },
108: #ifdef notdef
109: #define X_DEFICIT 15
110: { "_deficit" },
111: #define X_FORKSTAT 16
112: { "_forkstat" },
113: #define X_REC 17
114: { "_rectime" },
115: #define X_PGIN 18
116: { "_pgintime" },
117: #define X_XSTATS 19
118: { "_xstats" },
119: #define X_END 20
120: #else
121: #define X_END 15
122: #endif
123: #if defined(hp300) || defined(luna68k)
124: #define X_HPDINIT (X_END)
125: { "_hp_dinit" },
126: #endif
127: #ifdef mips
128: #define X_SCSI_DINIT (X_END)
129: { "_scsi_dinit" },
130: #endif
131: #ifdef tahoe
132: #define X_VBDINIT (X_END)
133: { "_vbdinit" },
134: #define X_CKEYSTATS (X_END+1)
135: { "_ckeystats" },
136: #define X_DKEYSTATS (X_END+2)
137: { "_dkeystats" },
138: #endif
139: #if defined(pc532)
140: #define X_IVT (X_END)
141: { "_ivt" },
142: #endif
143: { "" },
144: };
145:
146: struct _disk {
147: long time[CPUSTATES];
148: long *xfer;
149: } cur, last;
150:
151: struct vmmeter sum, osum;
152: char **dr_name;
153: int *dr_select, dk_ndrive, ndrives;
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:
166: #include "names.c" /* disk names -- machine dependent */
167:
168: void cpustats(), dkstats(), dointr(), domem(), dosum();
169: void dovmstat(), kread(), usage();
170: #ifdef notdef
171: void dotimes(), doforkst();
172: #endif
173:
174: main(argc, argv)
175: register int argc;
176: register char **argv;
177: {
178: extern int optind;
179: extern char *optarg;
180: register int c, todo;
181: u_int interval;
182: int reps;
183: char *memf, *nlistf;
184: char errbuf[_POSIX2_LINE_MAX];
185:
186: memf = nlistf = NULL;
187: interval = reps = todo = 0;
188: while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != EOF) {
189: switch (c) {
190: case 'c':
191: reps = atoi(optarg);
192: break;
193: #ifndef notdef
194: case 'f':
195: todo |= FORKSTAT;
196: break;
197: #endif
198: case 'i':
199: todo |= INTRSTAT;
200: break;
201: case 'M':
202: memf = optarg;
203: break;
204: case 'm':
205: todo |= MEMSTAT;
206: break;
207: case 'N':
208: nlistf = optarg;
209: break;
210: case 's':
211: todo |= SUMSTAT;
212: break;
213: #ifndef notdef
214: case 't':
215: todo |= TIMESTAT;
216: break;
217: #endif
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: */
236: if (nlistf != NULL || memf != NULL)
237: setgid(getgid());
238:
239: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
240: if (kd == 0) {
241: (void)fprintf(stderr,
242: "vmstat: kvm_openfiles: %s\n", errbuf);
243: exit(1);
244: }
245:
246: if ((c = kvm_nlist(kd, namelist)) != 0) {
247: if (c > 0) {
248: (void)fprintf(stderr,
249: "vmstat: undefined symbols:");
250: for (c = 0;
251: c < sizeof(namelist)/sizeof(namelist[0]); c++)
252: if (namelist[c].n_type == 0)
253: fprintf(stderr, " %s",
254: namelist[c].n_name);
255: (void)fputc('\n', stderr);
256: } else
257: (void)fprintf(stderr, "vmstat: kvm_nlist: %s\n",
258: kvm_geterr(kd));
259: exit(1);
260: }
261:
262: if (todo & VMSTAT) {
263: char **getdrivedata();
264: struct winsize winsize;
265:
266: argv = getdrivedata(argv);
267: winsize.ws_row = 0;
268: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize);
269: if (winsize.ws_row > 0)
270: winlines = winsize.ws_row;
271:
272: }
273:
274: #define BACKWARD_COMPATIBILITY
275: #ifdef BACKWARD_COMPATIBILITY
276: if (*argv) {
277: interval = atoi(*argv);
278: if (*++argv)
279: reps = atoi(*argv);
280: }
281: #endif
282:
283: if (interval) {
284: if (!reps)
285: reps = -1;
286: } else if (reps)
287: interval = 1;
288:
289: #ifdef notdef
290: if (todo & FORKSTAT)
291: doforkst();
292: #endif
293: if (todo & MEMSTAT)
294: domem();
295: if (todo & SUMSTAT)
296: dosum();
297: #ifdef notdef
298: if (todo & TIMESTAT)
299: dotimes();
300: #endif
301: if (todo & INTRSTAT)
302: dointr();
303: if (todo & VMSTAT)
304: dovmstat(interval, reps);
305: exit(0);
306: }
307:
308: char **
309: getdrivedata(argv)
310: char **argv;
311: {
312: register int i;
313: register char **cp;
314: char buf[30];
315:
316: kread(X_DK_NDRIVE, &dk_ndrive, sizeof(dk_ndrive));
317: if (dk_ndrive <= 0) {
318: (void)fprintf(stderr, "vmstat: dk_ndrive %d\n", dk_ndrive);
319: exit(1);
320: }
321: dr_select = calloc((size_t)dk_ndrive, sizeof(int));
322: dr_name = calloc((size_t)dk_ndrive, sizeof(char *));
323: for (i = 0; i < dk_ndrive; i++)
324: dr_name[i] = NULL;
325: cur.xfer = calloc((size_t)dk_ndrive, sizeof(long));
326: last.xfer = calloc((size_t)dk_ndrive, sizeof(long));
327: if (!read_names())
328: exit (1);
329: for (i = 0; i < dk_ndrive; i++)
330: if (dr_name[i] == NULL) {
331: (void)sprintf(buf, "??%d", i);
332: dr_name[i] = strdup(buf);
333: }
334:
335: /*
336: * Choose drives to be displayed. Priority goes to (in order) drives
337: * supplied as arguments, default drives. If everything isn't filled
338: * in and there are drives not taken care of, display the first few
339: * that fit.
340: */
341: #define BACKWARD_COMPATIBILITY
342: for (ndrives = 0; *argv; ++argv) {
343: #ifdef BACKWARD_COMPATIBILITY
344: if (isdigit(**argv))
345: break;
346: #endif
347: for (i = 0; i < dk_ndrive; i++) {
348: if (strcmp(dr_name[i], *argv))
349: continue;
350: dr_select[i] = 1;
351: ++ndrives;
352: break;
353: }
354: }
355: for (i = 0; i < dk_ndrive && ndrives < 4; i++) {
356: if (dr_select[i])
357: continue;
358: for (cp = defdrives; *cp; cp++)
359: if (strcmp(dr_name[i], *cp) == 0) {
360: dr_select[i] = 1;
361: ++ndrives;
362: break;
363: }
364: }
365: for (i = 0; i < dk_ndrive && ndrives < 4; i++) {
366: if (dr_select[i])
367: continue;
368: dr_select[i] = 1;
369: ++ndrives;
370: }
371: return(argv);
372: }
373:
374: long
375: getuptime()
376: {
377: static time_t now, boottime;
378: time_t uptime;
379:
380: if (boottime == 0)
381: kread(X_BOOTTIME, &boottime, sizeof(boottime));
382: (void)time(&now);
383: uptime = now - boottime;
384: if (uptime <= 0 || uptime > 60*60*24*365*10) {
385: (void)fprintf(stderr,
386: "vmstat: time makes no sense; namelist must be wrong.\n");
387: exit(1);
388: }
389: return(uptime);
390: }
391:
392: int hz, hdrcnt;
393:
394: void
395: dovmstat(interval, reps)
396: u_int interval;
397: int reps;
398: {
399: struct vmtotal total;
400: time_t uptime, halfuptime;
401: void needhdr();
402: int mib[2];
403: size_t size;
404:
405: uptime = getuptime();
406: halfuptime = uptime / 2;
407: (void)signal(SIGCONT, needhdr);
408:
409: if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0)
410: kread(X_STATHZ, &hz, sizeof(hz));
411: if (!hz)
412: kread(X_HZ, &hz, sizeof(hz));
413:
414: for (hdrcnt = 1;;) {
415: if (!--hdrcnt)
416: printhdr();
417: kread(X_CPTIME, cur.time, sizeof(cur.time));
418: kread(X_DKXFER, cur.xfer, sizeof(*cur.xfer) * dk_ndrive);
419: kread(X_SUM, &sum, sizeof(sum));
420: size = sizeof(total);
421: mib[0] = CTL_VM;
422: mib[1] = VM_METER;
423: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
424: printf("Can't get kerninfo: %s\n", strerror(errno));
425: bzero(&total, sizeof(total));
426: }
427: (void)printf("%2d%2d%2d",
428: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
429: #define pgtok(a) ((a) * sum.v_page_size >> 10)
430: #define rate(x) (((x) + halfuptime) / uptime) /* round */
431: (void)printf("%6ld%6ld ",
432: pgtok(total.t_avm), pgtok(total.t_free));
433: #ifdef NEWVM
434: (void)printf("%4lu ", rate(sum.v_faults - osum.v_faults));
435: (void)printf("%3lu ",
436: rate(sum.v_reactivated - osum.v_reactivated));
437: (void)printf("%3lu ", rate(sum.v_pageins - osum.v_pageins));
438: (void)printf("%3lu %3lu ",
439: rate(sum.v_pageouts - osum.v_pageouts), 0);
440: #else
441: (void)printf("%3lu %2lu ",
442: rate(sum.v_pgrec - (sum.v_xsfrec+sum.v_xifrec) -
443: (osum.v_pgrec - (osum.v_xsfrec+osum.v_xifrec))),
444: rate(sum.v_xsfrec + sum.v_xifrec -
445: osum.v_xsfrec - osum.v_xifrec));
446: (void)printf("%3lu ",
447: rate(pgtok(sum.v_pgpgin - osum.v_pgpgin)));
448: (void)printf("%3lu %3lu ",
449: rate(pgtok(sum.v_pgpgout - osum.v_pgpgout)),
450: rate(pgtok(sum.v_dfree - osum.v_dfree)));
451: (void)printf("%3d ", pgtok(deficit));
452: #endif
453: (void)printf("%3lu ", rate(sum.v_scan - osum.v_scan));
454: dkstats();
455: (void)printf("%4lu %4lu %3lu ",
456: rate(sum.v_intr - osum.v_intr),
457: rate(sum.v_syscall - osum.v_syscall),
458: rate(sum.v_swtch - osum.v_swtch));
459: cpustats();
460: (void)printf("\n");
461: (void)fflush(stdout);
462: if (reps >= 0 && --reps <= 0)
463: break;
464: osum = sum;
465: uptime = interval;
466: /*
467: * We round upward to avoid losing low-frequency events
468: * (i.e., >= 1 per interval but < 1 per second).
469: */
470: halfuptime = (uptime + 1) / 2;
471: (void)sleep(interval);
472: }
473: }
474:
475: printhdr()
476: {
477: register int i;
478:
479: (void)printf(" procs memory page%*s", 20, "");
480: if (ndrives > 1)
481: (void)printf("disks %*s faults cpu\n",
482: ndrives * 3 - 6, "");
483: else
484: (void)printf("%*s faults cpu\n", ndrives * 3, "");
485: #ifndef NEWVM
486: (void)printf(" r b w avm fre re at pi po fr de sr ");
487: #else
488: (void)printf(" r b w avm fre flt re pi po fr sr ");
489: #endif
490: for (i = 0; i < dk_ndrive; i++)
491: if (dr_select[i])
492: (void)printf("%c%c ", dr_name[i][0],
493: dr_name[i][strlen(dr_name[i]) - 1]);
494: (void)printf(" in sy cs us sy id\n");
495: hdrcnt = winlines - 2;
496: }
497:
498: /*
499: * Force a header to be prepended to the next output.
500: */
501: void
502: needhdr()
503: {
504:
505: hdrcnt = 1;
506: }
507:
508: #ifdef notdef
509: void
510: dotimes()
511: {
512: u_int pgintime, rectime;
513:
514: kread(X_REC, &rectime, sizeof(rectime));
515: kread(X_PGIN, &pgintime, sizeof(pgintime));
516: kread(X_SUM, &sum, sizeof(sum));
517: (void)printf("%u reclaims, %u total time (usec)\n",
518: sum.v_pgrec, rectime);
519: (void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec);
520: (void)printf("\n");
521: (void)printf("%u page ins, %u total time (msec)\n",
522: sum.v_pgin, pgintime / 10);
523: (void)printf("average: %8.1f msec / page in\n",
524: pgintime / (sum.v_pgin * 10.0));
525: }
526: #endif
527:
528: pct(top, bot)
529: long top, bot;
530: {
531: long ans;
532:
533: if (bot == 0)
534: return(0);
535: ans = (quad_t)top * 100 / bot;
536: return (ans);
537: }
538:
539: #define PCT(top, bot) pct((long)(top), (long)(bot))
540:
541: #if defined(tahoe)
542: #include <machine/cpu.h>
543: #endif
544:
545: void
546: dosum()
547: {
548: struct nchstats nchstats;
549: #ifndef NEWVM
550: struct xstats xstats;
551: #endif
552: long nchtotal;
553: #if defined(tahoe)
554: struct keystats keystats;
555: #endif
556:
557: kread(X_SUM, &sum, sizeof(sum));
558: (void)printf("%9u cpu context switches\n", sum.v_swtch);
559: (void)printf("%9u device interrupts\n", sum.v_intr);
560: (void)printf("%9u software interrupts\n", sum.v_soft);
561: (void)printf("%9u traps\n", sum.v_trap);
562: (void)printf("%9u system calls\n", sum.v_syscall);
563: (void)printf("%9u total faults taken\n", sum.v_faults);
564: (void)printf("%9u swap ins\n", sum.v_swpin);
565: (void)printf("%9u swap outs\n", sum.v_swpout);
566: (void)printf("%9u pages swapped in\n", sum.v_pswpin / CLSIZE);
567: (void)printf("%9u pages swapped out\n", sum.v_pswpout / CLSIZE);
568: (void)printf("%9u page ins\n", sum.v_pageins);
569: (void)printf("%9u page outs\n", sum.v_pageouts);
570: (void)printf("%9u pages paged in\n", sum.v_pgpgin);
571: (void)printf("%9u pages paged out\n", sum.v_pgpgout);
572: (void)printf("%9u pages reactivated\n", sum.v_reactivated);
573: (void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
574: (void)printf("%9u zero fill pages created\n", sum.v_nzfod / CLSIZE);
575: (void)printf("%9u zero fill page faults\n", sum.v_zfod / CLSIZE);
576: (void)printf("%9u pages examined by the clock daemon\n", sum.v_scan);
577: (void)printf("%9u revolutions of the clock hand\n", sum.v_rev);
578: #ifdef NEWVM
579: (void)printf("%9u VM object cache lookups\n", sum.v_lookups);
580: (void)printf("%9u VM object hits\n", sum.v_hits);
581: (void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
582: (void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
583: (void)printf("%9u pages freed by daemon\n", sum.v_dfree);
584: (void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
585: (void)printf("%9u pages free\n", sum.v_free_count);
586: (void)printf("%9u pages wired down\n", sum.v_wire_count);
587: (void)printf("%9u pages active\n", sum.v_active_count);
588: (void)printf("%9u pages inactive\n", sum.v_inactive_count);
589: (void)printf("%9u bytes per page\n", sum.v_page_size);
590: #else
591: (void)printf("%9u sequential process pages freed\n", sum.v_seqfree);
592: (void)printf("%9u total reclaims (%d%% fast)\n", sum.v_pgrec,
593: PCT(sum.v_fastpgrec, sum.v_pgrec));
594: (void)printf("%9u reclaims from free list\n", sum.v_pgfrec);
595: (void)printf("%9u executable fill pages created\n",
596: sum.v_nexfod / CLSIZE);
597: (void)printf("%9u executable fill page faults\n",
598: sum.v_exfod / CLSIZE);
599: (void)printf("%9u swap text pages found in free list\n",
600: sum.v_xsfrec);
601: (void)printf("%9u inode text pages found in free list\n",
602: sum.v_xifrec);
603: (void)printf("%9u file fill pages created\n", sum.v_nvrfod / CLSIZE);
604: (void)printf("%9u file fill page faults\n", sum.v_vrfod / CLSIZE);
605: (void)printf("%9u pages freed by the clock daemon\n",
606: sum.v_dfree / CLSIZE);
607: #endif
608: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
609: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
610: nchstats.ncs_badhits + nchstats.ncs_falsehits +
611: nchstats.ncs_miss + nchstats.ncs_long;
612: (void)printf("%9ld total name lookups\n", nchtotal);
613: (void)printf(
614: "%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n",
615: "", PCT(nchstats.ncs_goodhits, nchtotal),
616: PCT(nchstats.ncs_neghits, nchtotal),
617: PCT(nchstats.ncs_pass2, nchtotal));
618: (void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
619: PCT(nchstats.ncs_badhits, nchtotal),
620: PCT(nchstats.ncs_falsehits, nchtotal),
621: PCT(nchstats.ncs_long, nchtotal));
622: #ifndef NEWVM
623: kread(X_XSTATS, &xstats, sizeof(xstats));
624: (void)printf("%9lu total calls to xalloc (cache hits %d%%)\n",
625: xstats.alloc, PCT(xstats.alloc_cachehit, xstats.alloc));
626: (void)printf("%9s sticky %lu flushed %lu unused %lu\n", "",
627: xstats.alloc_inuse, xstats.alloc_cacheflush, xstats.alloc_unused);
628: (void)printf("%9lu total calls to xfree", xstats.free);
629: (void)printf(" (sticky %lu cached %lu swapped %lu)\n",
630: xstats.free_inuse, xstats.free_cache, xstats.free_cacheswap);
631: #endif
632: #if defined(tahoe)
633: kread(X_CKEYSTATS, &keystats, sizeof(keystats));
634: (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n",
635: keystats.ks_allocs, "code cache keys allocated",
636: PCT(keystats.ks_allocfree, keystats.ks_allocs),
637: PCT(keystats.ks_norefs, keystats.ks_allocs),
638: PCT(keystats.ks_taken, keystats.ks_allocs),
639: PCT(keystats.ks_shared, keystats.ks_allocs));
640: kread(X_DKEYSTATS, &keystats, sizeof(keystats));
641: (void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n",
642: keystats.ks_allocs, "data cache keys allocated",
643: PCT(keystats.ks_allocfree, keystats.ks_allocs),
644: PCT(keystats.ks_norefs, keystats.ks_allocs),
645: PCT(keystats.ks_taken, keystats.ks_allocs),
646: PCT(keystats.ks_shared, keystats.ks_allocs));
647: #endif
648: }
649:
650: #ifdef notdef
651: void
652: doforkst()
653: {
654: struct forkstat fks;
655:
656: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
657: (void)printf("%d forks, %d pages, average %.2f\n",
658: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
659: (void)printf("%d vforks, %d pages, average %.2f\n",
660: fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork);
661: }
662: #endif
663:
664: void
665: dkstats()
666: {
667: register int dn, state;
668: double etime;
669: long tmp;
670:
671: for (dn = 0; dn < dk_ndrive; ++dn) {
672: tmp = cur.xfer[dn];
673: cur.xfer[dn] -= last.xfer[dn];
674: last.xfer[dn] = tmp;
675: }
676: etime = 0;
677: for (state = 0; state < CPUSTATES; ++state) {
678: tmp = cur.time[state];
679: cur.time[state] -= last.time[state];
680: last.time[state] = tmp;
681: etime += cur.time[state];
682: }
683: if (etime == 0)
684: etime = 1;
685: etime /= hz;
686: for (dn = 0; dn < dk_ndrive; ++dn) {
687: if (!dr_select[dn])
688: continue;
689: (void)printf("%2.0f ", cur.xfer[dn] / etime);
690: }
691: }
692:
693: void
694: cpustats()
695: {
696: register int state;
697: double pct, total;
698:
699: total = 0;
700: for (state = 0; state < CPUSTATES; ++state)
701: total += cur.time[state];
702: if (total)
703: pct = 100 / total;
704: else
705: pct = 0;
706: (void)printf("%2.0f ", (cur.time[CP_USER] + cur.time[CP_NICE]) * pct);
707: (void)printf("%2.0f ", (cur.time[CP_SYS] + cur.time[CP_INTR]) * pct);
708: (void)printf("%2.0f", cur.time[CP_IDLE] * pct);
709: }
710:
711: #if defined(pc532)
712: /* To get struct iv ...*/
713: #define _KERNEL
714: #include <machine/psl.h>
715: #undef _KERNEL
716: void
717: dointr()
718: {
719: register long i, j, inttotal, uptime;
720: static char iname[64];
721: struct iv ivt[32], *ivp = ivt;
722:
723: iname[63] = '\0';
724: uptime = getuptime();
725: kread(X_IVT, ivp, sizeof(ivt));
726:
727: for (i = 0; i < 2; i++) {
728: (void)printf("%sware interrupts:\n", i ? "\nsoft" : "hard");
729: (void)printf("interrupt total rate\n");
730: inttotal = 0;
731: for (j = 0; j < 16; j++, ivp++) {
732: if (ivp->iv_vec && ivp->iv_use && ivp->iv_cnt) {
733: if (kvm_read(kd, (u_long)ivp->iv_use, iname, 63) != 63) {
734: (void)fprintf(stderr, "vmstat: iv_use: %s\n",
735: kvm_geterr(kd));
736: exit(1);
737: }
738: (void)printf("%-12s %8ld %8ld\n", iname,
739: ivp->iv_cnt, ivp->iv_cnt / uptime);
740: inttotal += ivp->iv_cnt;
741: }
742: }
1.3 ! deraadt 743: (void)printf("Total %8ld %8ld\n",
1.1 deraadt 744: inttotal, inttotal / uptime);
745: }
746: }
747: #else
748: void
749: dointr()
750: {
751: register long *intrcnt, inttotal, uptime;
752: register int nintr, inamlen;
753: register char *intrname;
754: struct evcnt evcnt, *allevents;
755: struct device dev;
756:
757: uptime = getuptime();
758: nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value;
759: inamlen =
760: namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value;
761: intrcnt = malloc((size_t)nintr);
762: intrname = malloc((size_t)inamlen);
763: if (intrcnt == NULL || intrname == NULL) {
764: (void)fprintf(stderr, "vmstat: %s.\n", strerror(errno));
765: exit(1);
766: }
767: kread(X_INTRCNT, intrcnt, (size_t)nintr);
768: kread(X_INTRNAMES, intrname, (size_t)inamlen);
769: (void)printf("interrupt total rate\n");
770: inttotal = 0;
771: nintr /= sizeof(long);
772: while (--nintr >= 0) {
773: if (*intrcnt)
774: (void)printf("%-14s %8ld %8ld\n", intrname,
775: *intrcnt, *intrcnt / uptime);
776: intrname += strlen(intrname) + 1;
777: inttotal += *intrcnt++;
778: }
779: kread(X_ALLEVENTS, &allevents, sizeof allevents);
780: while (allevents) {
781: if (kvm_read(kd, (long)allevents, (void *)&evcnt,
782: sizeof evcnt) != sizeof evcnt) {
783: (void)fprintf(stderr, "vmstat: event chain trashed\n",
784: kvm_geterr(kd));
785: exit(1);
786: }
787: if (strcmp(evcnt.ev_name, "intr") == 0) {
788: if (kvm_read(kd, (long)evcnt.ev_dev, (void *)&dev,
789: sizeof dev) != sizeof dev) {
790: (void)fprintf(stderr, "vmstat: event chain trashed\n",
791: kvm_geterr(kd));
792: exit(1);
793: }
794: if (evcnt.ev_count)
795: (void)printf("%-14s %8ld %8ld\n", dev.dv_xname,
796: evcnt.ev_count, evcnt.ev_count / uptime);
797: inttotal += evcnt.ev_count++;
798: }
799: allevents = evcnt.ev_next;
800: }
801: (void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime);
802: }
803: #endif
804:
805: /*
806: * These names are defined in <sys/malloc.h>.
807: */
808: char *kmemnames[] = INITKMEMNAMES;
809:
810: void
811: domem()
812: {
813: register struct kmembuckets *kp;
814: register struct kmemstats *ks;
815: register int i, j;
816: int len, size, first;
817: long totuse = 0, totfree = 0, totreq = 0;
818: char *name;
819: struct kmemstats kmemstats[M_LAST];
820: struct kmembuckets buckets[MINBUCKET + 16];
821:
822: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
823: (void)printf("Memory statistics by bucket size\n");
824: (void)printf(
825: " Size In Use Free Requests HighWater Couldfree\n");
826: for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) {
827: if (kp->kb_calls == 0)
828: continue;
829: size = 1 << i;
830: (void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size,
831: kp->kb_total - kp->kb_totalfree,
832: kp->kb_totalfree, kp->kb_calls,
833: kp->kb_highwat, kp->kb_couldfree);
834: totfree += size * kp->kb_totalfree;
835: }
836:
837: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
838: (void)printf("\nMemory usage type by bucket size\n");
839: (void)printf(" Size Type(s)\n");
840: kp = &buckets[MINBUCKET];
841: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
842: if (kp->kb_calls == 0)
843: continue;
844: first = 1;
845: len = 8;
846: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
847: if (ks->ks_calls == 0)
848: continue;
849: if ((ks->ks_size & j) == 0)
850: continue;
851: name = kmemnames[i] ? kmemnames[i] : "undefined";
852: len += 2 + strlen(name);
853: if (first)
854: printf("%8d %s", j, name);
855: else
856: printf(",");
857: if (len >= 80) {
858: printf("\n\t ");
859: len = 10 + strlen(name);
860: }
861: if (!first)
862: printf(" %s", name);
863: first = 0;
864: }
865: printf("\n");
866: }
867:
868: (void)printf(
869: "\nMemory statistics by type Type Kern\n");
870: (void)printf(
871: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
872: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
873: if (ks->ks_calls == 0)
874: continue;
875: (void)printf("%12s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
876: kmemnames[i] ? kmemnames[i] : "undefined",
877: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
878: (ks->ks_maxused + 1023) / 1024,
879: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
880: ks->ks_limblocks, ks->ks_mapblocks);
881: first = 1;
882: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
883: if ((ks->ks_size & j) == 0)
884: continue;
885: if (first)
886: printf(" %d", j);
887: else
888: printf(",%d", j);
889: first = 0;
890: }
891: printf("\n");
892: totuse += ks->ks_memuse;
893: totreq += ks->ks_calls;
894: }
895: (void)printf("\nMemory Totals: In Use Free Requests\n");
896: (void)printf(" %7ldK %6ldK %8ld\n",
897: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
898: }
899:
900: /*
901: * kread reads something from the kernel, given its nlist index.
902: */
903: void
904: kread(nlx, addr, size)
905: int nlx;
906: void *addr;
907: size_t size;
908: {
909: char *sym;
910:
911: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
912: sym = namelist[nlx].n_name;
913: if (*sym == '_')
914: ++sym;
915: (void)fprintf(stderr,
916: "vmstat: symbol %s not defined\n", sym);
917: exit(1);
918: }
919: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
920: sym = namelist[nlx].n_name;
921: if (*sym == '_')
922: ++sym;
923: (void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd));
924: exit(1);
925: }
926: }
927:
928: void
929: usage()
930: {
931: (void)fprintf(stderr,
932: #ifndef NEWVM
933: "usage: vmstat [-fimst] [-c count] [-M core] \
934: [-N system] [-w wait] [disks]\n");
935: #else
936: "usage: vmstat [-ims] [-c count] [-M core] \
937: [-N system] [-w wait] [disks]\n");
938: #endif
939: exit(1);
940: }
941:
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