Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.118
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.118 ! mikeb 2: /* $OpenBSD: vmstat.c,v 1.117 2010/08/01 02:51:03 chl 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 swap ins\n", uvmexp.swapins);
543: (void)printf("%11u swap outs\n", uvmexp.swapouts);
544: (void)printf("%11u forks\n", uvmexp.forks);
545: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 546: uvmexp.forks_sharevm);
1.97 pedro 547: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.32 art 548:
549: /* daemon counters */
1.64 deraadt 550: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 551: uvmexp.pdwoke);
1.35 hugh 552: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
553: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
554: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
555: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
556: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 557:
1.56 angelos 558: if (nlistf == NULL && memf == NULL) {
1.52 angelos 559: size = sizeof(nchstats);
560: mib[0] = CTL_KERN;
561: mib[1] = KERN_NCHSTATS;
562: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 563: warn("could not read kern.nchstats");
1.52 angelos 564: bzero(&nchstats, sizeof(nchstats));
565: }
1.56 angelos 566: } else {
567: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 568: }
569:
1.1 deraadt 570: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
571: nchstats.ncs_badhits + nchstats.ncs_falsehits +
572: nchstats.ncs_miss + nchstats.ncs_long;
1.112 naddy 573: (void)printf("%11lld total name lookups\n", nchtotal);
1.52 angelos 574: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
575: "per-directory\n",
1.112 naddy 576: "", pct(nchstats.ncs_goodhits, nchtotal),
577: pct(nchstats.ncs_neghits, nchtotal),
578: pct(nchstats.ncs_pass2, nchtotal));
1.35 hugh 579: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.112 naddy 580: pct(nchstats.ncs_badhits, nchtotal),
581: pct(nchstats.ncs_falsehits, nchtotal),
582: pct(nchstats.ncs_long, nchtotal));
1.52 angelos 583:
1.56 angelos 584: if (nlistf == NULL && memf == NULL) {
1.52 angelos 585: size = sizeof(nselcoll);
586: mib[0] = CTL_KERN;
587: mib[1] = KERN_NSELCOLL;
588: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 589: warn("could not read kern.nselcoll");
1.52 angelos 590: nselcoll = 0;
591: }
1.56 angelos 592: } else {
593: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 594: }
1.50 art 595: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 596: }
597:
598: void
1.72 deraadt 599: doforkst(void)
1.1 deraadt 600: {
601: struct forkstat fks;
1.52 angelos 602: size_t size;
603: int mib[2];
604:
1.56 angelos 605: if (nlistf == NULL && memf == NULL) {
1.52 angelos 606: size = sizeof(struct forkstat);
607: mib[0] = CTL_KERN;
608: mib[1] = KERN_FORKSTAT;
609: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 610: warn("could not read kern.forkstat");
1.52 angelos 611: bzero(&fks, sizeof(struct forkstat));
612: }
1.56 angelos 613: } else {
614: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 615: }
1.1 deraadt 616:
617: (void)printf("%d forks, %d pages, average %.2f\n",
618: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
619: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 620: fks.cntvfork, fks.sizvfork,
621: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.12 tholo 622: (void)printf("%d rforks, %d pages, average %.2f\n",
1.72 deraadt 623: fks.cntrfork, fks.sizrfork,
624: (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
1.36 niklas 625: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 626: fks.cntkthread, fks.sizkthread,
627: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 628: }
629:
630: void
1.72 deraadt 631: dkstats(void)
1.1 deraadt 632: {
1.62 mpech 633: int dn, state;
1.1 deraadt 634: double etime;
635:
1.6 tholo 636: /* Calculate disk stat deltas. */
637: dkswap();
1.1 deraadt 638: etime = 0;
639: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 640: etime += cur.cp_time[state];
1.1 deraadt 641: }
642: if (etime == 0)
643: etime = 1;
644: etime /= hz;
645: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 646: if (!dk_select[dn])
1.1 deraadt 647: continue;
1.82 tedu 648: (void)printf("%3.0f ",
649: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 650: }
651: }
652:
653: void
1.72 deraadt 654: cpustats(void)
1.1 deraadt 655: {
1.102 deraadt 656: double percent, total;
1.62 mpech 657: int state;
1.1 deraadt 658:
659: total = 0;
660: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 661: total += cur.cp_time[state];
1.1 deraadt 662: if (total)
1.101 otto 663: percent = 100 / total;
1.1 deraadt 664: else
1.101 otto 665: percent = 0;
666: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
667: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent);
668: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 669: }
670:
671: void
1.72 deraadt 672: dointr(void)
1.74 art 673: {
1.102 deraadt 674: int nintr, mib[4], i;
675: char intrname[128];
676: u_int64_t inttotal;
1.74 art 677: time_t uptime;
678: size_t siz;
679:
1.93 miod 680: if (nlistf != NULL || memf != NULL) {
681: errx(1,
682: "interrupt statistics are only available on live kernels");
683: }
684:
1.74 art 685: uptime = getuptime();
686:
687: mib[0] = CTL_KERN;
688: mib[1] = KERN_INTRCNT;
689: mib[2] = KERN_INTRCNT_NUM;
690: siz = sizeof(nintr);
691: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
692: warnx("could not read kern.intrcnt.nintrcnt");
693: return;
694: }
695:
1.91 deraadt 696: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 697:
1.74 art 698: inttotal = 0;
699: for (i = 0; i < nintr; i++) {
1.87 aaron 700: char name[128];
1.90 deraadt 701: u_quad_t cnt;
1.87 aaron 702: int vector;
1.74 art 703:
704: mib[0] = CTL_KERN;
705: mib[1] = KERN_INTRCNT;
706: mib[2] = KERN_INTRCNT_NAME;
707: mib[3] = i;
1.87 aaron 708: siz = sizeof(name);
709: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 710: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 711: return;
712: }
713:
714: mib[0] = CTL_KERN;
715: mib[1] = KERN_INTRCNT;
716: mib[2] = KERN_INTRCNT_VECTOR;
717: mib[3] = i;
718: siz = sizeof(vector);
719: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
720: strlcpy(intrname, name, sizeof(intrname));
721: } else {
722: snprintf(intrname, sizeof(intrname), "irq%d/%s",
723: vector, name);
1.74 art 724: }
725:
726: mib[0] = CTL_KERN;
727: mib[1] = KERN_INTRCNT;
728: mib[2] = KERN_INTRCNT_CNT;
729: mib[3] = i;
730: siz = sizeof(cnt);
731: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 732: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 733: return;
1.74 art 734: }
1.90 deraadt 735:
1.87 aaron 736: if (cnt || zflag)
1.91 deraadt 737: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 738: cnt, cnt / uptime);
1.74 art 739: inttotal += cnt;
740: }
741:
1.91 deraadt 742: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 743: inttotal / uptime);
1.1 deraadt 744: }
745:
746: /*
747: * These names are defined in <sys/malloc.h>.
748: */
1.101 otto 749: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 750:
751: void
1.72 deraadt 752: domem(void)
1.1 deraadt 753: {
1.102 deraadt 754: struct kmembuckets buckets[MINBUCKET + 16], *kp;
755: struct kmemstats kmemstats[M_LAST], *ks;
756: int i, j, len, size, first, mib[4];
1.50 art 757: u_long totuse = 0, totfree = 0;
1.102 deraadt 758: char buf[BUFSIZ], *bufp, *ap;
1.50 art 759: quad_t totreq = 0;
1.101 otto 760: const char *name;
1.50 art 761: size_t siz;
762:
763: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 764: mib[0] = CTL_KERN;
1.50 art 765: mib[1] = KERN_MALLOCSTATS;
766: mib[2] = KERN_MALLOC_BUCKETS;
767: siz = sizeof(buf);
768: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 769: warnx("could not read kern.malloc.buckets");
1.50 art 770: return;
771: }
772:
773: bufp = buf;
774: mib[2] = KERN_MALLOC_BUCKET;
775: siz = sizeof(struct kmembuckets);
776: i = 0;
777: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 778: mib[3] = atoi(ap);
1.50 art 779:
780: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 781: NULL, 0) < 0) {
1.56 angelos 782: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 783: return;
784: }
785: i++;
786: }
787: } else {
1.53 deraadt 788: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 789: }
1.1 deraadt 790:
1.18 kstailey 791: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
792: i++, kp++) {
1.65 art 793: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 794: continue;
1.18 kstailey 795: if (first) {
796: (void)printf("Memory statistics by bucket size\n");
797: (void)printf(
1.50 art 798: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 799: first = 0;
800: }
1.1 deraadt 801: size = 1 << i;
1.60 art 802: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
803: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
804: (unsigned long long)kp->kb_totalfree,
805: (unsigned long long)kp->kb_calls,
806: (unsigned long long)kp->kb_highwat,
807: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 808: totfree += size * kp->kb_totalfree;
1.18 kstailey 809: }
810:
811: /*
812: * If kmem statistics are not being gathered by the kernel,
813: * first will still be 1.
814: */
815: if (first) {
816: printf(
817: "Kmem statistics are not being gathered by the kernel.\n");
818: return;
1.1 deraadt 819: }
820:
1.52 angelos 821: if (memf == NULL && nlistf == NULL) {
822: bzero(kmemstats, sizeof(kmemstats));
823: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 824: mib[0] = CTL_KERN;
1.52 angelos 825: mib[1] = KERN_MALLOCSTATS;
826: mib[2] = KERN_MALLOC_KMEMSTATS;
827: mib[3] = i;
828: siz = sizeof(struct kmemstats);
829:
1.103 deraadt 830: /*
1.52 angelos 831: * Skip errors -- these are presumed to be unallocated
832: * entries.
833: */
834: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
835: continue;
836: }
837: } else {
838: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
839: }
840:
1.1 deraadt 841: (void)printf("\nMemory usage type by bucket size\n");
842: (void)printf(" Size Type(s)\n");
843: kp = &buckets[MINBUCKET];
844: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
845: if (kp->kb_calls == 0)
846: continue;
847: first = 1;
848: len = 8;
849: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
850: if (ks->ks_calls == 0)
851: continue;
852: if ((ks->ks_size & j) == 0)
853: continue;
854: name = kmemnames[i] ? kmemnames[i] : "undefined";
855: len += 2 + strlen(name);
856: if (first)
857: printf("%8d %s", j, name);
858: else
859: printf(",");
860: if (len >= 80) {
861: printf("\n\t ");
862: len = 10 + strlen(name);
863: }
864: if (!first)
865: printf(" %s", name);
866: first = 0;
867: }
868: printf("\n");
869: }
870:
871: (void)printf(
1.26 deraadt 872: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 873: (void)printf(
1.26 deraadt 874: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 875: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
876: if (ks->ks_calls == 0)
877: continue;
1.24 mickey 878: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 879: kmemnames[i] ? kmemnames[i] : "undefined",
880: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
881: (ks->ks_maxused + 1023) / 1024,
882: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
883: ks->ks_limblocks, ks->ks_mapblocks);
884: first = 1;
885: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
886: if ((ks->ks_size & j) == 0)
887: continue;
888: if (first)
889: printf(" %d", j);
890: else
891: printf(",%d", j);
892: first = 0;
893: }
894: printf("\n");
895: totuse += ks->ks_memuse;
896: totreq += ks->ks_calls;
897: }
898: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 899: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 900: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
901: }
902:
1.54 art 903: static void
904: print_pool(struct pool *pp, char *name)
905: {
906: static int first = 1;
1.102 deraadt 907: char maxp[32];
1.54 art 908: int ovflw;
909:
910: if (first) {
911: (void)printf("Memory resource pool statistics\n");
912: (void)printf(
913: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
914: "Name",
915: "Size",
916: "Requests",
917: "Fail",
1.110 otto 918: "InUse",
1.54 art 919: "Pgreq",
920: "Pgrel",
921: "Npage",
922: "Hiwat",
923: "Minpg",
924: "Maxpg",
925: "Idle");
926: first = 0;
927: }
1.65 art 928:
929: /* Skip unused pools unless verbose output. */
930: if (pp->pr_nget == 0 && !verbose)
931: return;
932:
1.54 art 933: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 934: snprintf(maxp, sizeof maxp, "inf");
1.54 art 935: else
1.69 deraadt 936: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 937: /*
938: * Print single word. `ovflow' is number of characters didn't fit
939: * on the last word. `fmt' is a format string to print this word.
940: * It must contain asterisk for field width. `width' is a width
941: * occupied by this word. `fixed' is a number of constant chars in
942: * `fmt'. `val' is a value to be printed using format string `fmt'.
943: */
944: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
945: (ovflw) += printf((fmt), \
946: (width) - (fixed) - (ovflw) > 0 ? \
947: (width) - (fixed) - (ovflw) : 0, \
948: (val)) - (width); \
949: if ((ovflw) < 0) \
950: (ovflw) = 0; \
951: } while (/* CONSTCOND */0)
952:
953: ovflw = 0;
954: PRWORD(ovflw, "%-*s", 11, 0, name);
955: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
956: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
957: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
1.110 otto 958: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput);
1.54 art 959: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
960: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
961: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
962: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
963: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
964: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 965: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 966: }
967:
1.55 art 968: static void dopool_kvm(void);
969: static void dopool_sysctl(void);
970:
1.48 art 971: void
972: dopool(void)
973: {
1.55 art 974: if (nlistf == NULL && memf == NULL)
975: dopool_sysctl();
976: else
977: dopool_kvm();
978: }
979:
980: void
981: dopool_sysctl(void)
982: {
1.117 chl 983: int mib[4], npools, i;
1.63 art 984: long total = 0, inuse = 0;
1.55 art 985: struct pool pool;
986: size_t size;
987:
988: mib[0] = CTL_KERN;
989: mib[1] = KERN_POOL;
990: mib[2] = KERN_POOL_NPOOLS;
991: size = sizeof(npools);
992: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 993: warn("can't figure out number of pools in kernel");
1.55 art 994: return;
995: }
996:
997: for (i = 1; npools; i++) {
998: char name[32];
999:
1000: mib[0] = CTL_KERN;
1001: mib[1] = KERN_POOL;
1002: mib[2] = KERN_POOL_POOL;
1003: mib[3] = i;
1004: size = sizeof(struct pool);
1005: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
1006: if (errno == ENOENT)
1007: continue;
1.92 pedro 1008: warn("error getting pool");
1.55 art 1009: return;
1010: }
1011: npools--;
1012: mib[2] = KERN_POOL_NAME;
1013: size = sizeof(name);
1014: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1015: warn("error getting pool name");
1.55 art 1016: return;
1017: }
1018: print_pool(&pool, name);
1.63 art 1019:
1020: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1021: total += pool.pr_npages * getpagesize(); /* XXX */
1.55 art 1022: }
1.63 art 1023:
1024: inuse /= 1024;
1025: total /= 1024;
1026: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1027: inuse, total, (double)(100 * inuse) / total);
1.55 art 1028: }
1029:
1030: void
1031: dopool_kvm(void)
1032: {
1.48 art 1033: TAILQ_HEAD(,pool) pool_head;
1034: struct pool pool, *pp = &pool;
1.102 deraadt 1035: long total = 0, inuse = 0;
1036: u_long addr;
1.98 mickey 1037: int kmfp;
1.48 art 1038:
1039: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.102 deraadt 1040: addr = (u_long)TAILQ_FIRST(&pool_head);
1.48 art 1041:
1.55 art 1042: while (addr != 0) {
1.54 art 1043: char name[32];
1.56 angelos 1044:
1.48 art 1045: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1046: (void)fprintf(stderr,
1047: "vmstat: pool chain trashed: %s\n",
1048: kvm_geterr(kd));
1049: exit(1);
1050: }
1.102 deraadt 1051: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1052: (void)fprintf(stderr,
1053: "vmstat: pool name trashed: %s\n",
1054: kvm_geterr(kd));
1055: exit(1);
1056: }
1.56 angelos 1057:
1.48 art 1058: name[31] = '\0';
1059:
1.54 art 1060: print_pool(pp, name);
1.48 art 1061:
1062: inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
1.63 art 1063: total += pp->pr_npages * getpagesize(); /* XXX */
1.56 angelos 1064:
1.102 deraadt 1065: addr = (u_long)TAILQ_NEXT(pp, pr_poollist);
1.48 art 1066: }
1067:
1068: inuse /= 1024;
1069: total /= 1024;
1.107 deraadt 1070: kread(X_KMPAGESFREE, &kmfp, sizeof(kmfp));
1071: total += kmfp * (getpagesize() / 1024);
1.48 art 1072: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1073: inuse, total, (double)(100 * inuse) / total);
1074: }
1075:
1.1 deraadt 1076: /*
1077: * kread reads something from the kernel, given its nlist index.
1078: */
1079: void
1.72 deraadt 1080: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1081: {
1082: char *sym;
1083:
1084: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1085: sym = namelist[nlx].n_name;
1086: if (*sym == '_')
1087: ++sym;
1.50 art 1088: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1089: }
1090: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1091: sym = namelist[nlx].n_name;
1092: if (*sym == '_')
1093: ++sym;
1.50 art 1094: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1095: }
1096: }
1097:
1098: void
1.72 deraadt 1099: usage(void)
1.1 deraadt 1100: {
1.88 jmc 1101: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.109 sobrado 1102: "[-N system] [-w wait] [disk ...]\n", __progname);
1.1 deraadt 1103: exit(1);
1104: }