Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.124
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.124 ! guenther 2: /* $OpenBSD: vmstat.c,v 1.123 2013/08/22 04:43:40 guenther Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1980, 1986, 1991, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.77 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
1.48 art 32:
1.1 deraadt 33: #include <sys/param.h>
34: #include <sys/time.h>
35: #include <sys/proc.h>
36: #include <sys/user.h>
37: #include <sys/dkstat.h>
38: #include <sys/buf.h>
39: #include <sys/namei.h>
40: #include <sys/malloc.h>
41: #include <sys/fcntl.h>
42: #include <sys/ioctl.h>
43: #include <sys/sysctl.h>
44: #include <sys/device.h>
1.48 art 45: #include <sys/pool.h>
1.1 deraadt 46: #include <time.h>
47: #include <nlist.h>
48: #include <kvm.h>
1.21 millert 49: #include <err.h>
1.1 deraadt 50: #include <errno.h>
51: #include <unistd.h>
52: #include <signal.h>
53: #include <stdio.h>
54: #include <ctype.h>
55: #include <stdlib.h>
56: #include <string.h>
57: #include <paths.h>
58: #include <limits.h>
1.6 tholo 59: #include "dkstats.h"
1.1 deraadt 60:
1.56 angelos 61: #include <uvm/uvm_object.h>
1.29 art 62: #include <uvm/uvm_extern.h>
63:
1.1 deraadt 64: struct nlist namelist[] = {
1.70 deraadt 65: #define X_UVMEXP 0 /* sysctl */
1.29 art 66: { "_uvmexp" },
1.124 ! guenther 67: #define X_TIME_UPTIME 1
! 68: { "_time_uptime" },
1.70 deraadt 69: #define X_NCHSTATS 2 /* sysctl */
1.1 deraadt 70: { "_nchstats" },
1.70 deraadt 71: #define X_KMEMSTAT 3 /* sysctl */
72: { "_kmemstats" },
73: #define X_KMEMBUCKETS 4 /* sysctl */
74: { "_bucket" },
75: #define X_FORKSTAT 5 /* sysctl */
76: { "_forkstat" },
77: #define X_NSELCOLL 6 /* sysctl */
78: { "_nselcoll" },
79: #define X_POOLHEAD 7 /* sysctl */
80: { "_pool_head" },
1.124 ! guenther 81: #define X_NAPTIME 8
! 82: { "_naptime" },
1.1 deraadt 83: { "" },
84: };
85:
1.6 tholo 86: /* Objects defined in dkstats.c */
1.73 tdeval 87: extern struct _disk cur, last;
1.10 deraadt 88: extern char **dr_name;
89: extern int *dk_select, dk_ndrive;
1.1 deraadt 90:
1.29 art 91: struct uvmexp uvmexp, ouvmexp;
1.6 tholo 92: int ndrives;
1.1 deraadt 93:
94: int winlines = 20;
95:
96: kvm_t *kd;
97:
98: #define FORKSTAT 0x01
99: #define INTRSTAT 0x02
100: #define MEMSTAT 0x04
101: #define SUMSTAT 0x08
102: #define TIMESTAT 0x10
103: #define VMSTAT 0x20
104:
1.66 millert 105: void cpustats(void);
1.101 otto 106: time_t getuptime(void);
1.66 millert 107: void dkstats(void);
108: void dointr(void);
109: void domem(void);
110: void dopool(void);
111: void dosum(void);
112: void dovmstat(u_int, int);
113: void kread(int, void *, size_t);
114: void usage(void);
115: void dotimes(void);
116: void doforkst(void);
1.101 otto 117: void needhdr(int);
1.112 naddy 118: int pct(int64_t, int64_t);
1.66 millert 119: void printhdr(void);
1.1 deraadt 120:
1.66 millert 121: char **choosedrives(char **);
1.10 deraadt 122:
123: /* Namelist and memory file names. */
124: char *nlistf, *memf;
1.6 tholo 125:
1.50 art 126: extern char *__progname;
127:
1.65 art 128: int verbose = 0;
1.87 aaron 129: int zflag = 0;
1.65 art 130:
1.21 millert 131: int
1.72 deraadt 132: main(int argc, char *argv[])
1.1 deraadt 133: {
1.102 deraadt 134: char errbuf[_POSIX2_LINE_MAX];
135: int c, todo = 0, reps = 0, mib[2];
136: const char *errstr;
137: u_int interval = 0;
1.84 deraadt 138: size_t size;
1.1 deraadt 139:
1.87 aaron 140: while ((c = getopt(argc, argv, "c:fiM:mN:stw:vz")) != -1) {
1.1 deraadt 141: switch (c) {
142: case 'c':
143: reps = atoi(optarg);
144: break;
145: case 'f':
146: todo |= FORKSTAT;
147: break;
148: case 'i':
149: todo |= INTRSTAT;
150: break;
151: case 'M':
152: memf = optarg;
153: break;
154: case 'm':
155: todo |= MEMSTAT;
156: break;
157: case 'N':
158: nlistf = optarg;
159: break;
160: case 's':
161: todo |= SUMSTAT;
162: break;
163: case 't':
164: todo |= TIMESTAT;
165: break;
166: case 'w':
1.102 deraadt 167: interval = (u_int)strtonum(optarg, 0, 1000, &errstr);
168: if (errstr)
1.104 pedro 169: errx(1, "-w %s: %s", optarg, errstr);
1.1 deraadt 170: break;
1.65 art 171: case 'v':
172: verbose = 1;
173: break;
1.87 aaron 174: case 'z':
175: zflag = 1;
176: break;
1.1 deraadt 177: case '?':
178: default:
179: usage();
180: }
181: }
182: argc -= optind;
183: argv += optind;
184:
185: if (todo == 0)
186: todo = VMSTAT;
187:
1.56 angelos 188: if (nlistf != NULL || memf != NULL) {
189:
190: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
191: if (kd == 0)
192: errx(1, "kvm_openfiles: %s", errbuf);
193:
194: if ((c = kvm_nlist(kd, namelist)) != 0) {
195:
196: if (c > 0) {
197: (void)fprintf(stderr,
198: "%s: undefined symbols:", __progname);
199: for (c = 0;
200: c < sizeof(namelist)/sizeof(namelist[0]);
201: c++)
202: if (namelist[c].n_type == 0)
203: fprintf(stderr, " %s",
204: namelist[c].n_name);
205: (void)fputc('\n', stderr);
206: exit(1);
207: } else
208: errx(1, "kvm_nlist: %s", kvm_geterr(kd));
209: }
1.115 lum 210: }
1.1 deraadt 211:
212: if (todo & VMSTAT) {
213: struct winsize winsize;
214:
1.6 tholo 215: dkinit(0); /* Initialize disk stats, no disks selected. */
216: argv = choosedrives(argv); /* Select disks. */
1.1 deraadt 217: winsize.ws_row = 0;
1.102 deraadt 218: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize);
1.1 deraadt 219: if (winsize.ws_row > 0)
220: winlines = winsize.ws_row;
221:
222: }
1.25 deraadt 223:
1.1 deraadt 224: #define BACKWARD_COMPATIBILITY
225: #ifdef BACKWARD_COMPATIBILITY
226: if (*argv) {
1.102 deraadt 227: interval = (u_int)strtonum(*argv, 0, 1000, &errstr);
228: if (errstr)
1.104 pedro 229: errx(1, "%s: %s", *argv, errstr);
1.103 deraadt 230:
1.1 deraadt 231: if (*++argv)
232: reps = atoi(*argv);
233: }
234: #endif
235:
236: if (interval) {
237: if (!reps)
238: reps = -1;
239: } else if (reps)
240: interval = 1;
241:
242: if (todo & FORKSTAT)
243: doforkst();
1.48 art 244: if (todo & MEMSTAT) {
1.1 deraadt 245: domem();
1.48 art 246: dopool();
247: }
1.1 deraadt 248: if (todo & SUMSTAT)
249: dosum();
250: if (todo & TIMESTAT)
251: dotimes();
252: if (todo & INTRSTAT)
253: dointr();
254: if (todo & VMSTAT)
255: dovmstat(interval, reps);
256: exit(0);
257: }
258:
259: char **
1.72 deraadt 260: choosedrives(char **argv)
1.1 deraadt 261: {
1.62 mpech 262: int i;
1.1 deraadt 263:
264: /*
265: * Choose drives to be displayed. Priority goes to (in order) drives
266: * supplied as arguments, default drives. If everything isn't filled
267: * in and there are drives not taken care of, display the first few
268: * that fit.
269: */
270: #define BACKWARD_COMPATIBILITY
271: for (ndrives = 0; *argv; ++argv) {
272: #ifdef BACKWARD_COMPATIBILITY
273: if (isdigit(**argv))
274: break;
275: #endif
276: for (i = 0; i < dk_ndrive; i++) {
277: if (strcmp(dr_name[i], *argv))
278: continue;
1.6 tholo 279: dk_select[i] = 1;
1.1 deraadt 280: ++ndrives;
281: break;
282: }
283: }
1.64 deraadt 284: for (i = 0; i < dk_ndrive && ndrives < 2; i++) {
1.6 tholo 285: if (dk_select[i])
1.1 deraadt 286: continue;
1.6 tholo 287: dk_select[i] = 1;
1.1 deraadt 288: ++ndrives;
289: }
290: return(argv);
291: }
292:
1.19 deraadt 293: time_t
1.72 deraadt 294: getuptime(void)
1.1 deraadt 295: {
1.124 ! guenther 296: struct timespec uptime;
! 297: time_t time_uptime, naptime;
1.1 deraadt 298:
1.124 ! guenther 299: if (nlistf == NULL && memf == NULL) {
! 300: if (clock_gettime(CLOCK_UPTIME, &uptime) == -1)
! 301: err(1, "clock_gettime");
! 302: return (uptime.tv_sec);
1.50 art 303: }
304:
1.124 ! guenther 305: kread(X_NAPTIME, &naptime, sizeof(naptime));
! 306: kread(X_TIME_UPTIME, &time_uptime, sizeof(time_uptime));
! 307: return (time_uptime - naptime);
1.1 deraadt 308: }
309:
1.105 cloder 310: int hz;
311: volatile sig_atomic_t hdrcnt;
1.1 deraadt 312:
313: void
1.72 deraadt 314: dovmstat(u_int interval, int reps)
1.1 deraadt 315: {
316: time_t uptime, halfuptime;
1.50 art 317: struct clockinfo clkinfo;
1.102 deraadt 318: struct vmtotal total;
1.1 deraadt 319: size_t size;
1.102 deraadt 320: int mib[2];
1.1 deraadt 321:
322: uptime = getuptime();
323: halfuptime = uptime / 2;
324: (void)signal(SIGCONT, needhdr);
325:
1.50 art 326: mib[0] = CTL_KERN;
327: mib[1] = KERN_CLOCKRATE;
328: size = sizeof(clkinfo);
329: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) {
1.56 angelos 330: warn("could not read kern.clockrate");
1.50 art 331: return;
332: }
333: hz = clkinfo.stathz;
1.1 deraadt 334:
335: for (hdrcnt = 1;;) {
1.6 tholo 336: /* Read new disk statistics */
337: dkreadstats();
1.73 tdeval 338: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
339: printhdr();
1.56 angelos 340: if (nlistf == NULL && memf == NULL) {
341: size = sizeof(struct uvmexp);
1.52 angelos 342: mib[0] = CTL_VM;
343: mib[1] = VM_UVMEXP;
344: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 345: warn("could not get vm.uvmexp");
346: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 347: }
1.56 angelos 348: } else {
349: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 350: }
1.1 deraadt 351: size = sizeof(total);
352: mib[0] = CTL_VM;
353: mib[1] = VM_METER;
354: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
1.56 angelos 355: warn("could not read vm.vmmeter");
1.1 deraadt 356: bzero(&total, sizeof(total));
357: }
1.114 tedu 358: (void)printf(" %u %u %u ",
1.1 deraadt 359: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.123 guenther 360: #define rate(x) ((unsigned)((((unsigned)x) + halfuptime) / uptime)) /* round */
1.102 deraadt 361: #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10))
1.114 tedu 362: (void)printf("%6u %7u ",
1.1 deraadt 363: pgtok(total.t_avm), pgtok(total.t_free));
1.106 sobrado 364: (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 365: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
366: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
367: (void)printf("%3u %3u ",
368: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
369: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
370: dkstats();
1.64 deraadt 371: (void)printf("%4u %5u %4u ",
1.29 art 372: rate(uvmexp.intrs - ouvmexp.intrs),
373: rate(uvmexp.syscalls - ouvmexp.syscalls),
374: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 375: cpustats();
376: (void)printf("\n");
377: (void)fflush(stdout);
378: if (reps >= 0 && --reps <= 0)
379: break;
1.29 art 380: ouvmexp = uvmexp;
1.1 deraadt 381: uptime = interval;
382: /*
383: * We round upward to avoid losing low-frequency events
384: * (i.e., >= 1 per interval but < 1 per second).
385: */
1.14 deraadt 386: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 387: (void)sleep(interval);
388: }
389: }
390:
1.21 millert 391: void
1.72 deraadt 392: printhdr(void)
1.1 deraadt 393: {
1.62 mpech 394: int i;
1.114 tedu 395: static int printedhdr;
396:
397: if (printedhdr && !isatty(STDOUT_FILENO))
398: return;
1.1 deraadt 399:
1.108 sobrado 400: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 401: if (ndrives > 0)
1.106 sobrado 402: (void)printf("%s %*straps cpu\n",
1.6 tholo 403: ((ndrives > 1) ? "disks" : "disk"),
1.106 sobrado 404: ((ndrives > 1) ? ndrives * 4 - 5 : 0), "");
1.1 deraadt 405: else
1.106 sobrado 406: (void)printf("%*s traps cpu\n",
1.6 tholo 407: ndrives * 3, "");
408:
1.106 sobrado 409: (void)printf(" r b w avm fre flt re pi po fr sr ");
1.1 deraadt 410: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 411: if (dk_select[i])
1.67 ho 412: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 413: dr_name[i][1],
1.1 deraadt 414: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 415: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 416: hdrcnt = winlines - 2;
1.114 tedu 417: printedhdr = 1;
1.1 deraadt 418: }
419:
420: /*
421: * Force a header to be prepended to the next output.
422: */
1.90 deraadt 423: /* ARGSUSED */
1.1 deraadt 424: void
1.78 deraadt 425: needhdr(int signo)
1.1 deraadt 426: {
427:
428: hdrcnt = 1;
429: }
430:
431: void
1.72 deraadt 432: dotimes(void)
1.1 deraadt 433: {
434: u_int pgintime, rectime;
1.102 deraadt 435: size_t size;
1.52 angelos 436: int mib[2];
1.1 deraadt 437:
1.56 angelos 438: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 439: pgintime = 0;
440: rectime = 0;
1.56 angelos 441:
442: if (nlistf == NULL && memf == NULL) {
443: size = sizeof(struct uvmexp);
1.52 angelos 444: mib[0] = CTL_VM;
445: mib[1] = VM_UVMEXP;
446: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 447: warn("could not read vm.uvmexp");
448: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 449: }
1.56 angelos 450: } else {
451: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 452: }
453:
1.29 art 454: (void)printf("%u reactivates, %u total time (usec)\n",
455: uvmexp.pdreact, rectime);
1.89 miod 456: if (uvmexp.pdreact != 0)
457: (void)printf("average: %u usec / reclaim\n",
458: rectime / uvmexp.pdreact);
1.29 art 459: (void)printf("\n");
460: (void)printf("%u page ins, %u total time (msec)\n",
461: uvmexp.pageins, pgintime / 10);
1.89 miod 462: if (uvmexp.pageins != 0)
463: (void)printf("average: %8.1f msec / page in\n",
1.103 deraadt 464: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 465: }
466:
1.21 millert 467: int
1.112 naddy 468: pct(int64_t top, int64_t bot)
1.1 deraadt 469: {
1.102 deraadt 470: int ans;
1.1 deraadt 471:
472: if (bot == 0)
473: return(0);
1.112 naddy 474: ans = top * 100 / bot;
1.1 deraadt 475: return (ans);
476: }
477:
478: void
1.72 deraadt 479: dosum(void)
1.1 deraadt 480: {
481: struct nchstats nchstats;
1.102 deraadt 482: int mib[2], nselcoll;
1.112 naddy 483: long long nchtotal;
1.52 angelos 484: size_t size;
1.1 deraadt 485:
1.56 angelos 486: if (nlistf == NULL && memf == NULL) {
487: size = sizeof(struct uvmexp);
1.52 angelos 488: mib[0] = CTL_VM;
489: mib[1] = VM_UVMEXP;
490: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 491: warn("could not read vm.uvmexp");
492: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 493: }
1.56 angelos 494: } else {
495: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 496: }
497:
1.32 art 498: /* vm_page constants */
1.35 hugh 499: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 500:
501: /* vm_page counters */
1.35 hugh 502: (void)printf("%11u pages managed\n", uvmexp.npages);
503: (void)printf("%11u pages free\n", uvmexp.free);
504: (void)printf("%11u pages active\n", uvmexp.active);
505: (void)printf("%11u pages inactive\n", uvmexp.inactive);
506: (void)printf("%11u pages being paged out\n", uvmexp.paging);
507: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 508: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 509: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 510: uvmexp.reserve_pagedaemon);
1.35 hugh 511: (void)printf("%11u pages reserved for kernel\n",
1.48 art 512: uvmexp.reserve_kernel);
1.32 art 513:
514: /* swap */
1.35 hugh 515: (void)printf("%11u swap pages\n", uvmexp.swpages);
516: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
517: (void)printf("%11u total anon's in system\n", uvmexp.nanon);
518: (void)printf("%11u free anon's\n", uvmexp.nfreeanon);
1.32 art 519:
520: /* stat counters */
1.35 hugh 521: (void)printf("%11u page faults\n", uvmexp.faults);
522: (void)printf("%11u traps\n", uvmexp.traps);
523: (void)printf("%11u interrupts\n", uvmexp.intrs);
524: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
1.95 mickey 525: (void)printf("%11u fpu context switches\n", uvmexp.fpswtch);
1.35 hugh 526: (void)printf("%11u software interrupts\n", uvmexp.softs);
527: (void)printf("%11u syscalls\n", uvmexp.syscalls);
528: (void)printf("%11u pagein operations\n", uvmexp.pageins);
529: (void)printf("%11u forks\n", uvmexp.forks);
530: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 531: uvmexp.forks_sharevm);
1.97 pedro 532: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.32 art 533:
534: /* daemon counters */
1.64 deraadt 535: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 536: uvmexp.pdwoke);
1.35 hugh 537: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
538: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
539: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
540: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
541: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 542:
1.56 angelos 543: if (nlistf == NULL && memf == NULL) {
1.52 angelos 544: size = sizeof(nchstats);
545: mib[0] = CTL_KERN;
546: mib[1] = KERN_NCHSTATS;
547: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 548: warn("could not read kern.nchstats");
1.52 angelos 549: bzero(&nchstats, sizeof(nchstats));
550: }
1.56 angelos 551: } else {
552: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 553: }
554:
1.1 deraadt 555: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
556: nchstats.ncs_badhits + nchstats.ncs_falsehits +
557: nchstats.ncs_miss + nchstats.ncs_long;
1.112 naddy 558: (void)printf("%11lld total name lookups\n", nchtotal);
1.52 angelos 559: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
560: "per-directory\n",
1.112 naddy 561: "", pct(nchstats.ncs_goodhits, nchtotal),
562: pct(nchstats.ncs_neghits, nchtotal),
563: pct(nchstats.ncs_pass2, nchtotal));
1.35 hugh 564: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.112 naddy 565: pct(nchstats.ncs_badhits, nchtotal),
566: pct(nchstats.ncs_falsehits, nchtotal),
567: pct(nchstats.ncs_long, nchtotal));
1.52 angelos 568:
1.56 angelos 569: if (nlistf == NULL && memf == NULL) {
1.52 angelos 570: size = sizeof(nselcoll);
571: mib[0] = CTL_KERN;
572: mib[1] = KERN_NSELCOLL;
573: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 574: warn("could not read kern.nselcoll");
1.52 angelos 575: nselcoll = 0;
576: }
1.56 angelos 577: } else {
578: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 579: }
1.50 art 580: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 581: }
582:
583: void
1.72 deraadt 584: doforkst(void)
1.1 deraadt 585: {
586: struct forkstat fks;
1.52 angelos 587: size_t size;
588: int mib[2];
589:
1.56 angelos 590: if (nlistf == NULL && memf == NULL) {
1.52 angelos 591: size = sizeof(struct forkstat);
592: mib[0] = CTL_KERN;
593: mib[1] = KERN_FORKSTAT;
594: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 595: warn("could not read kern.forkstat");
1.52 angelos 596: bzero(&fks, sizeof(struct forkstat));
597: }
1.56 angelos 598: } else {
599: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 600: }
1.1 deraadt 601:
602: (void)printf("%d forks, %d pages, average %.2f\n",
603: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
604: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 605: fks.cntvfork, fks.sizvfork,
606: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.119 deraadt 607: (void)printf("%d __tforks, %d pages, average %.2f\n",
608: fks.cnttfork, fks.siztfork,
609: (double)fks.siztfork / (fks.cnttfork ? fks.cnttfork : 1));
1.36 niklas 610: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 611: fks.cntkthread, fks.sizkthread,
612: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 613: }
614:
615: void
1.72 deraadt 616: dkstats(void)
1.1 deraadt 617: {
1.62 mpech 618: int dn, state;
1.1 deraadt 619: double etime;
620:
1.6 tholo 621: /* Calculate disk stat deltas. */
622: dkswap();
1.1 deraadt 623: etime = 0;
624: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 625: etime += cur.cp_time[state];
1.1 deraadt 626: }
627: if (etime == 0)
628: etime = 1;
629: etime /= hz;
630: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 631: if (!dk_select[dn])
1.1 deraadt 632: continue;
1.82 tedu 633: (void)printf("%3.0f ",
634: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 635: }
636: }
637:
638: void
1.72 deraadt 639: cpustats(void)
1.1 deraadt 640: {
1.102 deraadt 641: double percent, total;
1.62 mpech 642: int state;
1.1 deraadt 643:
644: total = 0;
645: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 646: total += cur.cp_time[state];
1.1 deraadt 647: if (total)
1.101 otto 648: percent = 100 / total;
1.1 deraadt 649: else
1.101 otto 650: percent = 0;
651: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
652: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent);
653: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 654: }
655:
656: void
1.72 deraadt 657: dointr(void)
1.74 art 658: {
1.102 deraadt 659: int nintr, mib[4], i;
660: char intrname[128];
661: u_int64_t inttotal;
1.74 art 662: time_t uptime;
663: size_t siz;
664:
1.93 miod 665: if (nlistf != NULL || memf != NULL) {
666: errx(1,
667: "interrupt statistics are only available on live kernels");
668: }
669:
1.74 art 670: uptime = getuptime();
671:
672: mib[0] = CTL_KERN;
673: mib[1] = KERN_INTRCNT;
674: mib[2] = KERN_INTRCNT_NUM;
675: siz = sizeof(nintr);
676: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
677: warnx("could not read kern.intrcnt.nintrcnt");
678: return;
679: }
680:
1.91 deraadt 681: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 682:
1.74 art 683: inttotal = 0;
684: for (i = 0; i < nintr; i++) {
1.87 aaron 685: char name[128];
1.90 deraadt 686: u_quad_t cnt;
1.87 aaron 687: int vector;
1.74 art 688:
689: mib[0] = CTL_KERN;
690: mib[1] = KERN_INTRCNT;
691: mib[2] = KERN_INTRCNT_NAME;
692: mib[3] = i;
1.87 aaron 693: siz = sizeof(name);
694: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 695: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 696: return;
697: }
698:
699: mib[0] = CTL_KERN;
700: mib[1] = KERN_INTRCNT;
701: mib[2] = KERN_INTRCNT_VECTOR;
702: mib[3] = i;
703: siz = sizeof(vector);
704: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
705: strlcpy(intrname, name, sizeof(intrname));
706: } else {
707: snprintf(intrname, sizeof(intrname), "irq%d/%s",
708: vector, name);
1.74 art 709: }
710:
711: mib[0] = CTL_KERN;
712: mib[1] = KERN_INTRCNT;
713: mib[2] = KERN_INTRCNT_CNT;
714: mib[3] = i;
715: siz = sizeof(cnt);
716: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 717: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 718: return;
1.74 art 719: }
1.90 deraadt 720:
1.87 aaron 721: if (cnt || zflag)
1.91 deraadt 722: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 723: cnt, cnt / uptime);
1.74 art 724: inttotal += cnt;
725: }
726:
1.91 deraadt 727: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 728: inttotal / uptime);
1.1 deraadt 729: }
730:
731: /*
732: * These names are defined in <sys/malloc.h>.
733: */
1.101 otto 734: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 735:
736: void
1.72 deraadt 737: domem(void)
1.1 deraadt 738: {
1.102 deraadt 739: struct kmembuckets buckets[MINBUCKET + 16], *kp;
740: struct kmemstats kmemstats[M_LAST], *ks;
741: int i, j, len, size, first, mib[4];
1.50 art 742: u_long totuse = 0, totfree = 0;
1.102 deraadt 743: char buf[BUFSIZ], *bufp, *ap;
1.50 art 744: quad_t totreq = 0;
1.101 otto 745: const char *name;
1.50 art 746: size_t siz;
747:
748: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 749: mib[0] = CTL_KERN;
1.50 art 750: mib[1] = KERN_MALLOCSTATS;
751: mib[2] = KERN_MALLOC_BUCKETS;
752: siz = sizeof(buf);
753: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 754: warnx("could not read kern.malloc.buckets");
1.50 art 755: return;
756: }
757:
758: bufp = buf;
759: mib[2] = KERN_MALLOC_BUCKET;
760: siz = sizeof(struct kmembuckets);
761: i = 0;
762: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 763: mib[3] = atoi(ap);
1.50 art 764:
765: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 766: NULL, 0) < 0) {
1.56 angelos 767: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 768: return;
769: }
770: i++;
771: }
772: } else {
1.53 deraadt 773: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 774: }
1.1 deraadt 775:
1.18 kstailey 776: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
777: i++, kp++) {
1.65 art 778: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 779: continue;
1.18 kstailey 780: if (first) {
781: (void)printf("Memory statistics by bucket size\n");
782: (void)printf(
1.50 art 783: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 784: first = 0;
785: }
1.1 deraadt 786: size = 1 << i;
1.60 art 787: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
788: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
789: (unsigned long long)kp->kb_totalfree,
790: (unsigned long long)kp->kb_calls,
791: (unsigned long long)kp->kb_highwat,
792: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 793: totfree += size * kp->kb_totalfree;
1.18 kstailey 794: }
795:
796: /*
797: * If kmem statistics are not being gathered by the kernel,
798: * first will still be 1.
799: */
800: if (first) {
801: printf(
802: "Kmem statistics are not being gathered by the kernel.\n");
803: return;
1.1 deraadt 804: }
805:
1.52 angelos 806: if (memf == NULL && nlistf == NULL) {
807: bzero(kmemstats, sizeof(kmemstats));
808: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 809: mib[0] = CTL_KERN;
1.52 angelos 810: mib[1] = KERN_MALLOCSTATS;
811: mib[2] = KERN_MALLOC_KMEMSTATS;
812: mib[3] = i;
813: siz = sizeof(struct kmemstats);
814:
1.103 deraadt 815: /*
1.52 angelos 816: * Skip errors -- these are presumed to be unallocated
817: * entries.
818: */
819: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
820: continue;
821: }
822: } else {
823: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
824: }
825:
1.1 deraadt 826: (void)printf("\nMemory usage type by bucket size\n");
827: (void)printf(" Size Type(s)\n");
828: kp = &buckets[MINBUCKET];
829: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
830: if (kp->kb_calls == 0)
831: continue;
832: first = 1;
833: len = 8;
834: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
835: if (ks->ks_calls == 0)
836: continue;
837: if ((ks->ks_size & j) == 0)
838: continue;
839: name = kmemnames[i] ? kmemnames[i] : "undefined";
840: len += 2 + strlen(name);
841: if (first)
842: printf("%8d %s", j, name);
843: else
844: printf(",");
845: if (len >= 80) {
846: printf("\n\t ");
847: len = 10 + strlen(name);
848: }
849: if (!first)
850: printf(" %s", name);
851: first = 0;
852: }
853: printf("\n");
854: }
855:
856: (void)printf(
1.26 deraadt 857: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 858: (void)printf(
1.26 deraadt 859: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 860: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
861: if (ks->ks_calls == 0)
862: continue;
1.24 mickey 863: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 864: kmemnames[i] ? kmemnames[i] : "undefined",
865: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
866: (ks->ks_maxused + 1023) / 1024,
867: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
868: ks->ks_limblocks, ks->ks_mapblocks);
869: first = 1;
870: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
871: if ((ks->ks_size & j) == 0)
872: continue;
873: if (first)
874: printf(" %d", j);
875: else
876: printf(",%d", j);
877: first = 0;
878: }
879: printf("\n");
880: totuse += ks->ks_memuse;
881: totreq += ks->ks_calls;
882: }
883: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 884: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 885: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
886: }
887:
1.54 art 888: static void
889: print_pool(struct pool *pp, char *name)
890: {
891: static int first = 1;
1.102 deraadt 892: char maxp[32];
1.54 art 893: int ovflw;
894:
895: if (first) {
896: (void)printf("Memory resource pool statistics\n");
897: (void)printf(
898: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
899: "Name",
900: "Size",
901: "Requests",
902: "Fail",
1.110 otto 903: "InUse",
1.54 art 904: "Pgreq",
905: "Pgrel",
906: "Npage",
907: "Hiwat",
908: "Minpg",
909: "Maxpg",
910: "Idle");
911: first = 0;
912: }
1.65 art 913:
914: /* Skip unused pools unless verbose output. */
915: if (pp->pr_nget == 0 && !verbose)
916: return;
917:
1.54 art 918: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 919: snprintf(maxp, sizeof maxp, "inf");
1.54 art 920: else
1.69 deraadt 921: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 922: /*
923: * Print single word. `ovflow' is number of characters didn't fit
924: * on the last word. `fmt' is a format string to print this word.
925: * It must contain asterisk for field width. `width' is a width
926: * occupied by this word. `fixed' is a number of constant chars in
927: * `fmt'. `val' is a value to be printed using format string `fmt'.
928: */
929: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
930: (ovflw) += printf((fmt), \
931: (width) - (fixed) - (ovflw) > 0 ? \
932: (width) - (fixed) - (ovflw) : 0, \
933: (val)) - (width); \
934: if ((ovflw) < 0) \
935: (ovflw) = 0; \
936: } while (/* CONSTCOND */0)
937:
938: ovflw = 0;
939: PRWORD(ovflw, "%-*s", 11, 0, name);
940: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
941: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
942: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
1.110 otto 943: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput);
1.54 art 944: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
945: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
946: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
947: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
948: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
949: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 950: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 951: }
952:
1.55 art 953: static void dopool_kvm(void);
954: static void dopool_sysctl(void);
955:
1.48 art 956: void
957: dopool(void)
958: {
1.55 art 959: if (nlistf == NULL && memf == NULL)
960: dopool_sysctl();
961: else
962: dopool_kvm();
963: }
964:
965: void
966: dopool_sysctl(void)
967: {
1.117 chl 968: int mib[4], npools, i;
1.63 art 969: long total = 0, inuse = 0;
1.55 art 970: struct pool pool;
971: size_t size;
972:
973: mib[0] = CTL_KERN;
974: mib[1] = KERN_POOL;
975: mib[2] = KERN_POOL_NPOOLS;
976: size = sizeof(npools);
977: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 978: warn("can't figure out number of pools in kernel");
1.55 art 979: return;
980: }
981:
982: for (i = 1; npools; i++) {
983: char name[32];
984:
985: mib[0] = CTL_KERN;
986: mib[1] = KERN_POOL;
987: mib[2] = KERN_POOL_POOL;
988: mib[3] = i;
989: size = sizeof(struct pool);
990: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
991: if (errno == ENOENT)
992: continue;
1.92 pedro 993: warn("error getting pool");
1.55 art 994: return;
995: }
996: npools--;
997: mib[2] = KERN_POOL_NAME;
998: size = sizeof(name);
999: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1000: warn("error getting pool name");
1.55 art 1001: return;
1002: }
1003: print_pool(&pool, name);
1.63 art 1004:
1005: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1006: total += pool.pr_npages * getpagesize(); /* XXX */
1.55 art 1007: }
1.63 art 1008:
1009: inuse /= 1024;
1010: total /= 1024;
1011: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1012: inuse, total, (double)(100 * inuse) / total);
1.55 art 1013: }
1014:
1015: void
1016: dopool_kvm(void)
1017: {
1.120 tedu 1018: SIMPLEQ_HEAD(,pool) pool_head;
1.48 art 1019: struct pool pool, *pp = &pool;
1.102 deraadt 1020: long total = 0, inuse = 0;
1021: u_long addr;
1.98 mickey 1022: int kmfp;
1.48 art 1023:
1024: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.120 tedu 1025: addr = (u_long)SIMPLEQ_FIRST(&pool_head);
1.48 art 1026:
1.55 art 1027: while (addr != 0) {
1.54 art 1028: char name[32];
1.56 angelos 1029:
1.48 art 1030: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1031: (void)fprintf(stderr,
1032: "vmstat: pool chain trashed: %s\n",
1033: kvm_geterr(kd));
1034: exit(1);
1035: }
1.102 deraadt 1036: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1037: (void)fprintf(stderr,
1038: "vmstat: pool name trashed: %s\n",
1039: kvm_geterr(kd));
1040: exit(1);
1041: }
1.56 angelos 1042:
1.48 art 1043: name[31] = '\0';
1044:
1.54 art 1045: print_pool(pp, name);
1.48 art 1046:
1047: inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
1.63 art 1048: total += pp->pr_npages * getpagesize(); /* XXX */
1.56 angelos 1049:
1.120 tedu 1050: addr = (u_long)SIMPLEQ_NEXT(pp, pr_poollist);
1.48 art 1051: }
1052:
1053: inuse /= 1024;
1054: total /= 1024;
1055: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1056: inuse, total, (double)(100 * inuse) / total);
1057: }
1058:
1.1 deraadt 1059: /*
1060: * kread reads something from the kernel, given its nlist index.
1061: */
1062: void
1.72 deraadt 1063: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1064: {
1065: char *sym;
1066:
1067: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1068: sym = namelist[nlx].n_name;
1069: if (*sym == '_')
1070: ++sym;
1.50 art 1071: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1072: }
1073: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1074: sym = namelist[nlx].n_name;
1075: if (*sym == '_')
1076: ++sym;
1.50 art 1077: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1078: }
1079: }
1080:
1081: void
1.72 deraadt 1082: usage(void)
1.1 deraadt 1083: {
1.88 jmc 1084: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.109 sobrado 1085: "[-N system] [-w wait] [disk ...]\n", __progname);
1.1 deraadt 1086: exit(1);
1087: }
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