Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.121
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.121 ! miod 2: /* $OpenBSD: vmstat.c,v 1.120 2013/03/26 21:13:55 tedu 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" },
1.70 deraadt 67: #define X_BOOTTIME 1 /* sysctl */
1.1 deraadt 68: { "_boottime" },
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" },
1.107 deraadt 81: #define X_KMPAGESFREE 8 /* sysctl */
1.98 mickey 82: { "_uvm_km_pages_free" },
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: {
1.102 deraadt 296: static struct timeval boottime;
1.11 deraadt 297: static time_t now;
1.1 deraadt 298: time_t uptime;
1.102 deraadt 299: size_t size;
1.50 art 300: int mib[2];
1.1 deraadt 301:
1.50 art 302: if (boottime.tv_sec == 0) {
1.56 angelos 303: if (nlistf == NULL && memf == NULL) {
1.50 art 304: size = sizeof(boottime);
305: mib[0] = CTL_KERN;
306: mib[1] = KERN_BOOTTIME;
307: if (sysctl(mib, 2, &boottime, &size, NULL, 0) < 0) {
1.56 angelos 308: warn("could not get kern.boottime");
1.50 art 309: bzero(&boottime, sizeof(boottime));
310: }
1.56 angelos 311: } else {
312: kread(X_BOOTTIME, &boottime, sizeof(boottime));
1.50 art 313: }
314: }
1.1 deraadt 315: (void)time(&now);
1.11 deraadt 316: uptime = now - boottime.tv_sec;
1.50 art 317: if (uptime <= 0 || uptime > 60*60*24*365*10)
318: errx(1, "time makes no sense; namelist must be wrong");
319:
1.1 deraadt 320: return(uptime);
321: }
322:
1.105 cloder 323: int hz;
324: volatile sig_atomic_t hdrcnt;
1.1 deraadt 325:
326: void
1.72 deraadt 327: dovmstat(u_int interval, int reps)
1.1 deraadt 328: {
329: time_t uptime, halfuptime;
1.50 art 330: struct clockinfo clkinfo;
1.102 deraadt 331: struct vmtotal total;
1.1 deraadt 332: size_t size;
1.102 deraadt 333: int mib[2];
1.1 deraadt 334:
335: uptime = getuptime();
336: halfuptime = uptime / 2;
337: (void)signal(SIGCONT, needhdr);
338:
1.50 art 339: mib[0] = CTL_KERN;
340: mib[1] = KERN_CLOCKRATE;
341: size = sizeof(clkinfo);
342: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) {
1.56 angelos 343: warn("could not read kern.clockrate");
1.50 art 344: return;
345: }
346: hz = clkinfo.stathz;
1.1 deraadt 347:
348: for (hdrcnt = 1;;) {
1.6 tholo 349: /* Read new disk statistics */
350: dkreadstats();
1.73 tdeval 351: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
352: printhdr();
1.56 angelos 353: if (nlistf == NULL && memf == NULL) {
354: size = sizeof(struct uvmexp);
1.52 angelos 355: mib[0] = CTL_VM;
356: mib[1] = VM_UVMEXP;
357: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 358: warn("could not get vm.uvmexp");
359: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 360: }
1.56 angelos 361: } else {
362: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 363: }
1.1 deraadt 364: size = sizeof(total);
365: mib[0] = CTL_VM;
366: mib[1] = VM_METER;
367: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
1.56 angelos 368: warn("could not read vm.vmmeter");
1.1 deraadt 369: bzero(&total, sizeof(total));
370: }
1.114 tedu 371: (void)printf(" %u %u %u ",
1.1 deraadt 372: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.111 deraadt 373: #define rate(x) ((((unsigned)x) + halfuptime) / uptime) /* round */
1.102 deraadt 374: #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10))
1.114 tedu 375: (void)printf("%6u %7u ",
1.1 deraadt 376: pgtok(total.t_avm), pgtok(total.t_free));
1.106 sobrado 377: (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 378: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
379: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
380: (void)printf("%3u %3u ",
381: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
382: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
383: dkstats();
1.64 deraadt 384: (void)printf("%4u %5u %4u ",
1.29 art 385: rate(uvmexp.intrs - ouvmexp.intrs),
386: rate(uvmexp.syscalls - ouvmexp.syscalls),
387: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 388: cpustats();
389: (void)printf("\n");
390: (void)fflush(stdout);
391: if (reps >= 0 && --reps <= 0)
392: break;
1.29 art 393: ouvmexp = uvmexp;
1.1 deraadt 394: uptime = interval;
395: /*
396: * We round upward to avoid losing low-frequency events
397: * (i.e., >= 1 per interval but < 1 per second).
398: */
1.14 deraadt 399: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 400: (void)sleep(interval);
401: }
402: }
403:
1.21 millert 404: void
1.72 deraadt 405: printhdr(void)
1.1 deraadt 406: {
1.62 mpech 407: int i;
1.114 tedu 408: static int printedhdr;
409:
410: if (printedhdr && !isatty(STDOUT_FILENO))
411: return;
1.1 deraadt 412:
1.108 sobrado 413: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 414: if (ndrives > 0)
1.106 sobrado 415: (void)printf("%s %*straps cpu\n",
1.6 tholo 416: ((ndrives > 1) ? "disks" : "disk"),
1.106 sobrado 417: ((ndrives > 1) ? ndrives * 4 - 5 : 0), "");
1.1 deraadt 418: else
1.106 sobrado 419: (void)printf("%*s traps cpu\n",
1.6 tholo 420: ndrives * 3, "");
421:
1.106 sobrado 422: (void)printf(" r b w avm fre flt re pi po fr sr ");
1.1 deraadt 423: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 424: if (dk_select[i])
1.67 ho 425: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 426: dr_name[i][1],
1.1 deraadt 427: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 428: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 429: hdrcnt = winlines - 2;
1.114 tedu 430: printedhdr = 1;
1.1 deraadt 431: }
432:
433: /*
434: * Force a header to be prepended to the next output.
435: */
1.90 deraadt 436: /* ARGSUSED */
1.1 deraadt 437: void
1.78 deraadt 438: needhdr(int signo)
1.1 deraadt 439: {
440:
441: hdrcnt = 1;
442: }
443:
444: void
1.72 deraadt 445: dotimes(void)
1.1 deraadt 446: {
447: u_int pgintime, rectime;
1.102 deraadt 448: size_t size;
1.52 angelos 449: int mib[2];
1.1 deraadt 450:
1.56 angelos 451: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 452: pgintime = 0;
453: rectime = 0;
1.56 angelos 454:
455: if (nlistf == NULL && memf == NULL) {
456: size = sizeof(struct uvmexp);
1.52 angelos 457: mib[0] = CTL_VM;
458: mib[1] = VM_UVMEXP;
459: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 460: warn("could not read vm.uvmexp");
461: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 462: }
1.56 angelos 463: } else {
464: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 465: }
466:
1.29 art 467: (void)printf("%u reactivates, %u total time (usec)\n",
468: uvmexp.pdreact, rectime);
1.89 miod 469: if (uvmexp.pdreact != 0)
470: (void)printf("average: %u usec / reclaim\n",
471: rectime / uvmexp.pdreact);
1.29 art 472: (void)printf("\n");
473: (void)printf("%u page ins, %u total time (msec)\n",
474: uvmexp.pageins, pgintime / 10);
1.89 miod 475: if (uvmexp.pageins != 0)
476: (void)printf("average: %8.1f msec / page in\n",
1.103 deraadt 477: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 478: }
479:
1.21 millert 480: int
1.112 naddy 481: pct(int64_t top, int64_t bot)
1.1 deraadt 482: {
1.102 deraadt 483: int ans;
1.1 deraadt 484:
485: if (bot == 0)
486: return(0);
1.112 naddy 487: ans = top * 100 / bot;
1.1 deraadt 488: return (ans);
489: }
490:
491: void
1.72 deraadt 492: dosum(void)
1.1 deraadt 493: {
494: struct nchstats nchstats;
1.102 deraadt 495: int mib[2], nselcoll;
1.112 naddy 496: long long nchtotal;
1.52 angelos 497: size_t size;
1.1 deraadt 498:
1.56 angelos 499: if (nlistf == NULL && memf == NULL) {
500: size = sizeof(struct uvmexp);
1.52 angelos 501: mib[0] = CTL_VM;
502: mib[1] = VM_UVMEXP;
503: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 504: warn("could not read vm.uvmexp");
505: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 506: }
1.56 angelos 507: } else {
508: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 509: }
510:
1.32 art 511: /* vm_page constants */
1.35 hugh 512: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 513:
514: /* vm_page counters */
1.35 hugh 515: (void)printf("%11u pages managed\n", uvmexp.npages);
516: (void)printf("%11u pages free\n", uvmexp.free);
517: (void)printf("%11u pages active\n", uvmexp.active);
518: (void)printf("%11u pages inactive\n", uvmexp.inactive);
519: (void)printf("%11u pages being paged out\n", uvmexp.paging);
520: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 521: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 522: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 523: uvmexp.reserve_pagedaemon);
1.35 hugh 524: (void)printf("%11u pages reserved for kernel\n",
1.48 art 525: uvmexp.reserve_kernel);
1.32 art 526:
527: /* swap */
1.35 hugh 528: (void)printf("%11u swap pages\n", uvmexp.swpages);
529: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
530: (void)printf("%11u total anon's in system\n", uvmexp.nanon);
531: (void)printf("%11u free anon's\n", uvmexp.nfreeanon);
1.32 art 532:
533: /* stat counters */
1.35 hugh 534: (void)printf("%11u page faults\n", uvmexp.faults);
535: (void)printf("%11u traps\n", uvmexp.traps);
536: (void)printf("%11u interrupts\n", uvmexp.intrs);
537: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
1.95 mickey 538: (void)printf("%11u fpu context switches\n", uvmexp.fpswtch);
1.35 hugh 539: (void)printf("%11u software interrupts\n", uvmexp.softs);
540: (void)printf("%11u syscalls\n", uvmexp.syscalls);
541: (void)printf("%11u pagein operations\n", uvmexp.pageins);
542: (void)printf("%11u forks\n", uvmexp.forks);
543: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 544: uvmexp.forks_sharevm);
1.97 pedro 545: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.32 art 546:
547: /* daemon counters */
1.64 deraadt 548: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 549: uvmexp.pdwoke);
1.35 hugh 550: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
551: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
552: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
553: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
554: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 555:
1.56 angelos 556: if (nlistf == NULL && memf == NULL) {
1.52 angelos 557: size = sizeof(nchstats);
558: mib[0] = CTL_KERN;
559: mib[1] = KERN_NCHSTATS;
560: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 561: warn("could not read kern.nchstats");
1.52 angelos 562: bzero(&nchstats, sizeof(nchstats));
563: }
1.56 angelos 564: } else {
565: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 566: }
567:
1.1 deraadt 568: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
569: nchstats.ncs_badhits + nchstats.ncs_falsehits +
570: nchstats.ncs_miss + nchstats.ncs_long;
1.112 naddy 571: (void)printf("%11lld total name lookups\n", nchtotal);
1.52 angelos 572: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
573: "per-directory\n",
1.112 naddy 574: "", pct(nchstats.ncs_goodhits, nchtotal),
575: pct(nchstats.ncs_neghits, nchtotal),
576: pct(nchstats.ncs_pass2, nchtotal));
1.35 hugh 577: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.112 naddy 578: pct(nchstats.ncs_badhits, nchtotal),
579: pct(nchstats.ncs_falsehits, nchtotal),
580: pct(nchstats.ncs_long, nchtotal));
1.52 angelos 581:
1.56 angelos 582: if (nlistf == NULL && memf == NULL) {
1.52 angelos 583: size = sizeof(nselcoll);
584: mib[0] = CTL_KERN;
585: mib[1] = KERN_NSELCOLL;
586: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 587: warn("could not read kern.nselcoll");
1.52 angelos 588: nselcoll = 0;
589: }
1.56 angelos 590: } else {
591: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 592: }
1.50 art 593: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 594: }
595:
596: void
1.72 deraadt 597: doforkst(void)
1.1 deraadt 598: {
599: struct forkstat fks;
1.52 angelos 600: size_t size;
601: int mib[2];
602:
1.56 angelos 603: if (nlistf == NULL && memf == NULL) {
1.52 angelos 604: size = sizeof(struct forkstat);
605: mib[0] = CTL_KERN;
606: mib[1] = KERN_FORKSTAT;
607: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 608: warn("could not read kern.forkstat");
1.52 angelos 609: bzero(&fks, sizeof(struct forkstat));
610: }
1.56 angelos 611: } else {
612: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 613: }
1.1 deraadt 614:
615: (void)printf("%d forks, %d pages, average %.2f\n",
616: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
617: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 618: fks.cntvfork, fks.sizvfork,
619: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.119 deraadt 620: (void)printf("%d __tforks, %d pages, average %.2f\n",
621: fks.cnttfork, fks.siztfork,
622: (double)fks.siztfork / (fks.cnttfork ? fks.cnttfork : 1));
1.36 niklas 623: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 624: fks.cntkthread, fks.sizkthread,
625: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 626: }
627:
628: void
1.72 deraadt 629: dkstats(void)
1.1 deraadt 630: {
1.62 mpech 631: int dn, state;
1.1 deraadt 632: double etime;
633:
1.6 tholo 634: /* Calculate disk stat deltas. */
635: dkswap();
1.1 deraadt 636: etime = 0;
637: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 638: etime += cur.cp_time[state];
1.1 deraadt 639: }
640: if (etime == 0)
641: etime = 1;
642: etime /= hz;
643: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 644: if (!dk_select[dn])
1.1 deraadt 645: continue;
1.82 tedu 646: (void)printf("%3.0f ",
647: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 648: }
649: }
650:
651: void
1.72 deraadt 652: cpustats(void)
1.1 deraadt 653: {
1.102 deraadt 654: double percent, total;
1.62 mpech 655: int state;
1.1 deraadt 656:
657: total = 0;
658: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 659: total += cur.cp_time[state];
1.1 deraadt 660: if (total)
1.101 otto 661: percent = 100 / total;
1.1 deraadt 662: else
1.101 otto 663: percent = 0;
664: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
665: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent);
666: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 667: }
668:
669: void
1.72 deraadt 670: dointr(void)
1.74 art 671: {
1.102 deraadt 672: int nintr, mib[4], i;
673: char intrname[128];
674: u_int64_t inttotal;
1.74 art 675: time_t uptime;
676: size_t siz;
677:
1.93 miod 678: if (nlistf != NULL || memf != NULL) {
679: errx(1,
680: "interrupt statistics are only available on live kernels");
681: }
682:
1.74 art 683: uptime = getuptime();
684:
685: mib[0] = CTL_KERN;
686: mib[1] = KERN_INTRCNT;
687: mib[2] = KERN_INTRCNT_NUM;
688: siz = sizeof(nintr);
689: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
690: warnx("could not read kern.intrcnt.nintrcnt");
691: return;
692: }
693:
1.91 deraadt 694: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 695:
1.74 art 696: inttotal = 0;
697: for (i = 0; i < nintr; i++) {
1.87 aaron 698: char name[128];
1.90 deraadt 699: u_quad_t cnt;
1.87 aaron 700: int vector;
1.74 art 701:
702: mib[0] = CTL_KERN;
703: mib[1] = KERN_INTRCNT;
704: mib[2] = KERN_INTRCNT_NAME;
705: mib[3] = i;
1.87 aaron 706: siz = sizeof(name);
707: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 708: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 709: return;
710: }
711:
712: mib[0] = CTL_KERN;
713: mib[1] = KERN_INTRCNT;
714: mib[2] = KERN_INTRCNT_VECTOR;
715: mib[3] = i;
716: siz = sizeof(vector);
717: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
718: strlcpy(intrname, name, sizeof(intrname));
719: } else {
720: snprintf(intrname, sizeof(intrname), "irq%d/%s",
721: vector, name);
1.74 art 722: }
723:
724: mib[0] = CTL_KERN;
725: mib[1] = KERN_INTRCNT;
726: mib[2] = KERN_INTRCNT_CNT;
727: mib[3] = i;
728: siz = sizeof(cnt);
729: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 730: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 731: return;
1.74 art 732: }
1.90 deraadt 733:
1.87 aaron 734: if (cnt || zflag)
1.91 deraadt 735: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 736: cnt, cnt / uptime);
1.74 art 737: inttotal += cnt;
738: }
739:
1.91 deraadt 740: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 741: inttotal / uptime);
1.1 deraadt 742: }
743:
744: /*
745: * These names are defined in <sys/malloc.h>.
746: */
1.101 otto 747: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 748:
749: void
1.72 deraadt 750: domem(void)
1.1 deraadt 751: {
1.102 deraadt 752: struct kmembuckets buckets[MINBUCKET + 16], *kp;
753: struct kmemstats kmemstats[M_LAST], *ks;
754: int i, j, len, size, first, mib[4];
1.50 art 755: u_long totuse = 0, totfree = 0;
1.102 deraadt 756: char buf[BUFSIZ], *bufp, *ap;
1.50 art 757: quad_t totreq = 0;
1.101 otto 758: const char *name;
1.50 art 759: size_t siz;
760:
761: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 762: mib[0] = CTL_KERN;
1.50 art 763: mib[1] = KERN_MALLOCSTATS;
764: mib[2] = KERN_MALLOC_BUCKETS;
765: siz = sizeof(buf);
766: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 767: warnx("could not read kern.malloc.buckets");
1.50 art 768: return;
769: }
770:
771: bufp = buf;
772: mib[2] = KERN_MALLOC_BUCKET;
773: siz = sizeof(struct kmembuckets);
774: i = 0;
775: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 776: mib[3] = atoi(ap);
1.50 art 777:
778: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 779: NULL, 0) < 0) {
1.56 angelos 780: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 781: return;
782: }
783: i++;
784: }
785: } else {
1.53 deraadt 786: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 787: }
1.1 deraadt 788:
1.18 kstailey 789: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
790: i++, kp++) {
1.65 art 791: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 792: continue;
1.18 kstailey 793: if (first) {
794: (void)printf("Memory statistics by bucket size\n");
795: (void)printf(
1.50 art 796: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 797: first = 0;
798: }
1.1 deraadt 799: size = 1 << i;
1.60 art 800: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
801: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
802: (unsigned long long)kp->kb_totalfree,
803: (unsigned long long)kp->kb_calls,
804: (unsigned long long)kp->kb_highwat,
805: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 806: totfree += size * kp->kb_totalfree;
1.18 kstailey 807: }
808:
809: /*
810: * If kmem statistics are not being gathered by the kernel,
811: * first will still be 1.
812: */
813: if (first) {
814: printf(
815: "Kmem statistics are not being gathered by the kernel.\n");
816: return;
1.1 deraadt 817: }
818:
1.52 angelos 819: if (memf == NULL && nlistf == NULL) {
820: bzero(kmemstats, sizeof(kmemstats));
821: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 822: mib[0] = CTL_KERN;
1.52 angelos 823: mib[1] = KERN_MALLOCSTATS;
824: mib[2] = KERN_MALLOC_KMEMSTATS;
825: mib[3] = i;
826: siz = sizeof(struct kmemstats);
827:
1.103 deraadt 828: /*
1.52 angelos 829: * Skip errors -- these are presumed to be unallocated
830: * entries.
831: */
832: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
833: continue;
834: }
835: } else {
836: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
837: }
838:
1.1 deraadt 839: (void)printf("\nMemory usage type by bucket size\n");
840: (void)printf(" Size Type(s)\n");
841: kp = &buckets[MINBUCKET];
842: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
843: if (kp->kb_calls == 0)
844: continue;
845: first = 1;
846: len = 8;
847: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
848: if (ks->ks_calls == 0)
849: continue;
850: if ((ks->ks_size & j) == 0)
851: continue;
852: name = kmemnames[i] ? kmemnames[i] : "undefined";
853: len += 2 + strlen(name);
854: if (first)
855: printf("%8d %s", j, name);
856: else
857: printf(",");
858: if (len >= 80) {
859: printf("\n\t ");
860: len = 10 + strlen(name);
861: }
862: if (!first)
863: printf(" %s", name);
864: first = 0;
865: }
866: printf("\n");
867: }
868:
869: (void)printf(
1.26 deraadt 870: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 871: (void)printf(
1.26 deraadt 872: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 873: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
874: if (ks->ks_calls == 0)
875: continue;
1.24 mickey 876: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 877: kmemnames[i] ? kmemnames[i] : "undefined",
878: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
879: (ks->ks_maxused + 1023) / 1024,
880: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
881: ks->ks_limblocks, ks->ks_mapblocks);
882: first = 1;
883: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
884: if ((ks->ks_size & j) == 0)
885: continue;
886: if (first)
887: printf(" %d", j);
888: else
889: printf(",%d", j);
890: first = 0;
891: }
892: printf("\n");
893: totuse += ks->ks_memuse;
894: totreq += ks->ks_calls;
895: }
896: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 897: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 898: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
899: }
900:
1.54 art 901: static void
902: print_pool(struct pool *pp, char *name)
903: {
904: static int first = 1;
1.102 deraadt 905: char maxp[32];
1.54 art 906: int ovflw;
907:
908: if (first) {
909: (void)printf("Memory resource pool statistics\n");
910: (void)printf(
911: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
912: "Name",
913: "Size",
914: "Requests",
915: "Fail",
1.110 otto 916: "InUse",
1.54 art 917: "Pgreq",
918: "Pgrel",
919: "Npage",
920: "Hiwat",
921: "Minpg",
922: "Maxpg",
923: "Idle");
924: first = 0;
925: }
1.65 art 926:
927: /* Skip unused pools unless verbose output. */
928: if (pp->pr_nget == 0 && !verbose)
929: return;
930:
1.54 art 931: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 932: snprintf(maxp, sizeof maxp, "inf");
1.54 art 933: else
1.69 deraadt 934: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 935: /*
936: * Print single word. `ovflow' is number of characters didn't fit
937: * on the last word. `fmt' is a format string to print this word.
938: * It must contain asterisk for field width. `width' is a width
939: * occupied by this word. `fixed' is a number of constant chars in
940: * `fmt'. `val' is a value to be printed using format string `fmt'.
941: */
942: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
943: (ovflw) += printf((fmt), \
944: (width) - (fixed) - (ovflw) > 0 ? \
945: (width) - (fixed) - (ovflw) : 0, \
946: (val)) - (width); \
947: if ((ovflw) < 0) \
948: (ovflw) = 0; \
949: } while (/* CONSTCOND */0)
950:
951: ovflw = 0;
952: PRWORD(ovflw, "%-*s", 11, 0, name);
953: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
954: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
955: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
1.110 otto 956: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput);
1.54 art 957: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
958: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
959: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
960: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
961: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
962: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 963: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 964: }
965:
1.55 art 966: static void dopool_kvm(void);
967: static void dopool_sysctl(void);
968:
1.48 art 969: void
970: dopool(void)
971: {
1.55 art 972: if (nlistf == NULL && memf == NULL)
973: dopool_sysctl();
974: else
975: dopool_kvm();
976: }
977:
978: void
979: dopool_sysctl(void)
980: {
1.117 chl 981: int mib[4], npools, i;
1.63 art 982: long total = 0, inuse = 0;
1.55 art 983: struct pool pool;
984: size_t size;
985:
986: mib[0] = CTL_KERN;
987: mib[1] = KERN_POOL;
988: mib[2] = KERN_POOL_NPOOLS;
989: size = sizeof(npools);
990: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 991: warn("can't figure out number of pools in kernel");
1.55 art 992: return;
993: }
994:
995: for (i = 1; npools; i++) {
996: char name[32];
997:
998: mib[0] = CTL_KERN;
999: mib[1] = KERN_POOL;
1000: mib[2] = KERN_POOL_POOL;
1001: mib[3] = i;
1002: size = sizeof(struct pool);
1003: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
1004: if (errno == ENOENT)
1005: continue;
1.92 pedro 1006: warn("error getting pool");
1.55 art 1007: return;
1008: }
1009: npools--;
1010: mib[2] = KERN_POOL_NAME;
1011: size = sizeof(name);
1012: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1013: warn("error getting pool name");
1.55 art 1014: return;
1015: }
1016: print_pool(&pool, name);
1.63 art 1017:
1018: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1019: total += pool.pr_npages * getpagesize(); /* XXX */
1.55 art 1020: }
1.63 art 1021:
1022: inuse /= 1024;
1023: total /= 1024;
1024: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1025: inuse, total, (double)(100 * inuse) / total);
1.55 art 1026: }
1027:
1028: void
1029: dopool_kvm(void)
1030: {
1.120 tedu 1031: SIMPLEQ_HEAD(,pool) pool_head;
1.48 art 1032: struct pool pool, *pp = &pool;
1.102 deraadt 1033: long total = 0, inuse = 0;
1034: u_long addr;
1.98 mickey 1035: int kmfp;
1.48 art 1036:
1037: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.120 tedu 1038: addr = (u_long)SIMPLEQ_FIRST(&pool_head);
1.48 art 1039:
1.55 art 1040: while (addr != 0) {
1.54 art 1041: char name[32];
1.56 angelos 1042:
1.48 art 1043: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1044: (void)fprintf(stderr,
1045: "vmstat: pool chain trashed: %s\n",
1046: kvm_geterr(kd));
1047: exit(1);
1048: }
1.102 deraadt 1049: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1050: (void)fprintf(stderr,
1051: "vmstat: pool name trashed: %s\n",
1052: kvm_geterr(kd));
1053: exit(1);
1054: }
1.56 angelos 1055:
1.48 art 1056: name[31] = '\0';
1057:
1.54 art 1058: print_pool(pp, name);
1.48 art 1059:
1060: inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
1.63 art 1061: total += pp->pr_npages * getpagesize(); /* XXX */
1.56 angelos 1062:
1.120 tedu 1063: addr = (u_long)SIMPLEQ_NEXT(pp, pr_poollist);
1.48 art 1064: }
1065:
1066: inuse /= 1024;
1067: total /= 1024;
1.107 deraadt 1068: kread(X_KMPAGESFREE, &kmfp, sizeof(kmfp));
1069: total += kmfp * (getpagesize() / 1024);
1.48 art 1070: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1071: inuse, total, (double)(100 * inuse) / total);
1072: }
1073:
1.1 deraadt 1074: /*
1075: * kread reads something from the kernel, given its nlist index.
1076: */
1077: void
1.72 deraadt 1078: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1079: {
1080: char *sym;
1081:
1082: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1083: sym = namelist[nlx].n_name;
1084: if (*sym == '_')
1085: ++sym;
1.50 art 1086: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1087: }
1088: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1089: sym = namelist[nlx].n_name;
1090: if (*sym == '_')
1091: ++sym;
1.50 art 1092: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1093: }
1094: }
1095:
1096: void
1.72 deraadt 1097: usage(void)
1.1 deraadt 1098: {
1.88 jmc 1099: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.109 sobrado 1100: "[-N system] [-w wait] [disk ...]\n", __progname);
1.1 deraadt 1101: exit(1);
1102: }
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