Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.106
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.106 ! sobrado 2: /* $OpenBSD: vmstat.c,v 1.105 2007/09/13 22:30:51 cloder 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: */
32:
33: #ifndef lint
34: static char copyright[] =
35: "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
36: The Regents of the University of California. All rights reserved.\n";
37: #endif /* not lint */
38:
39: #ifndef lint
40: #if 0
41: static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
42: #else
1.106 ! sobrado 43: static const char rcsid[] = "$OpenBSD: vmstat.c,v 1.105 2007/09/13 22:30:51 cloder Exp $";
1.1 deraadt 44: #endif
45: #endif /* not lint */
1.48 art 46:
1.1 deraadt 47: #include <sys/param.h>
48: #include <sys/time.h>
49: #include <sys/proc.h>
50: #include <sys/user.h>
51: #include <sys/dkstat.h>
52: #include <sys/buf.h>
53: #include <sys/namei.h>
54: #include <sys/malloc.h>
55: #include <sys/fcntl.h>
56: #include <sys/ioctl.h>
57: #include <sys/sysctl.h>
58: #include <sys/device.h>
1.48 art 59: #include <sys/pool.h>
1.1 deraadt 60: #include <time.h>
61: #include <nlist.h>
62: #include <kvm.h>
1.21 millert 63: #include <err.h>
1.1 deraadt 64: #include <errno.h>
65: #include <unistd.h>
66: #include <signal.h>
67: #include <stdio.h>
68: #include <ctype.h>
69: #include <stdlib.h>
70: #include <string.h>
71: #include <paths.h>
72: #include <limits.h>
1.6 tholo 73: #include "dkstats.h"
1.1 deraadt 74:
1.56 angelos 75: #include <uvm/uvm_object.h>
1.29 art 76: #include <uvm/uvm_extern.h>
77:
1.1 deraadt 78: struct nlist namelist[] = {
1.70 deraadt 79: #define X_UVMEXP 0 /* sysctl */
1.29 art 80: { "_uvmexp" },
1.70 deraadt 81: #define X_BOOTTIME 1 /* sysctl */
1.1 deraadt 82: { "_boottime" },
1.70 deraadt 83: #define X_NCHSTATS 2 /* sysctl */
1.1 deraadt 84: { "_nchstats" },
1.70 deraadt 85: #define X_KMEMSTAT 3 /* sysctl */
86: { "_kmemstats" },
87: #define X_KMEMBUCKETS 4 /* sysctl */
88: { "_bucket" },
89: #define X_FORKSTAT 5 /* sysctl */
90: { "_forkstat" },
91: #define X_NSELCOLL 6 /* sysctl */
92: { "_nselcoll" },
93: #define X_POOLHEAD 7 /* sysctl */
94: { "_pool_head" },
1.99 martin 95: { "" },
1.98 mickey 96: };
97:
98: struct nlist namelist2[] = {
99: { "_uvm_km_pages_free" },
1.1 deraadt 100: { "" },
101: };
102:
1.6 tholo 103: /* Objects defined in dkstats.c */
1.73 tdeval 104: extern struct _disk cur, last;
1.10 deraadt 105: extern char **dr_name;
106: extern int *dk_select, dk_ndrive;
1.1 deraadt 107:
1.29 art 108: struct uvmexp uvmexp, ouvmexp;
1.6 tholo 109: int ndrives;
1.1 deraadt 110:
111: int winlines = 20;
112:
113: kvm_t *kd;
114:
115: #define FORKSTAT 0x01
116: #define INTRSTAT 0x02
117: #define MEMSTAT 0x04
118: #define SUMSTAT 0x08
119: #define TIMESTAT 0x10
120: #define VMSTAT 0x20
121:
1.66 millert 122: void cpustats(void);
1.101 otto 123: time_t getuptime(void);
1.66 millert 124: void dkstats(void);
125: void dointr(void);
126: void domem(void);
127: void dopool(void);
128: void dosum(void);
129: void dovmstat(u_int, int);
130: void kread(int, void *, size_t);
1.98 mickey 131: int kreado(struct nlist *, void *, size_t);
1.66 millert 132: void usage(void);
133: void dotimes(void);
134: void doforkst(void);
1.101 otto 135: void needhdr(int);
136: int pct(long, long);
1.66 millert 137: void printhdr(void);
1.1 deraadt 138:
1.66 millert 139: char **choosedrives(char **);
1.10 deraadt 140:
141: /* Namelist and memory file names. */
142: char *nlistf, *memf;
1.6 tholo 143:
1.50 art 144: extern char *__progname;
145:
1.65 art 146: int verbose = 0;
1.87 aaron 147: int zflag = 0;
1.65 art 148:
1.84 deraadt 149: int ncpu;
150:
1.21 millert 151: int
1.72 deraadt 152: main(int argc, char *argv[])
1.1 deraadt 153: {
1.102 deraadt 154: char errbuf[_POSIX2_LINE_MAX];
155: int c, todo = 0, reps = 0, mib[2];
156: const char *errstr;
157: u_int interval = 0;
1.84 deraadt 158: size_t size;
1.96 djm 159: gid_t gid;
1.1 deraadt 160:
1.87 aaron 161: while ((c = getopt(argc, argv, "c:fiM:mN:stw:vz")) != -1) {
1.1 deraadt 162: switch (c) {
163: case 'c':
164: reps = atoi(optarg);
165: break;
166: case 'f':
167: todo |= FORKSTAT;
168: break;
169: case 'i':
170: todo |= INTRSTAT;
171: break;
172: case 'M':
173: memf = optarg;
174: break;
175: case 'm':
176: todo |= MEMSTAT;
177: break;
178: case 'N':
179: nlistf = optarg;
180: break;
181: case 's':
182: todo |= SUMSTAT;
183: break;
184: case 't':
185: todo |= TIMESTAT;
186: break;
187: case 'w':
1.102 deraadt 188: interval = (u_int)strtonum(optarg, 0, 1000, &errstr);
189: if (errstr)
1.104 pedro 190: errx(1, "-w %s: %s", optarg, errstr);
1.1 deraadt 191: break;
1.65 art 192: case 'v':
193: verbose = 1;
194: break;
1.87 aaron 195: case 'z':
196: zflag = 1;
197: break;
1.1 deraadt 198: case '?':
199: default:
200: usage();
201: }
202: }
203: argc -= optind;
204: argv += optind;
205:
206: if (todo == 0)
207: todo = VMSTAT;
208:
1.96 djm 209: gid = getgid();
1.56 angelos 210: if (nlistf != NULL || memf != NULL) {
1.96 djm 211: if (setresgid(gid, gid, gid) == -1)
212: err(1, "setresgid");
1.56 angelos 213: }
214:
1.1 deraadt 215: /*
216: * Discard setgid privileges if not the running kernel so that bad
217: * guys can't print interesting stuff from kernel memory.
218: */
1.56 angelos 219: #if notyet
1.15 tholo 220: if (nlistf != NULL || memf != NULL) {
1.56 angelos 221: #endif
222: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
223: if (kd == 0)
224: errx(1, "kvm_openfiles: %s", errbuf);
225:
1.96 djm 226: if (nlistf == NULL && memf == NULL)
227: if (setresgid(gid, gid, gid) == -1)
228: err(1, "setresgid");
229:
1.56 angelos 230: if ((c = kvm_nlist(kd, namelist)) != 0) {
231:
232: if (c > 0) {
233: (void)fprintf(stderr,
234: "%s: undefined symbols:", __progname);
235: for (c = 0;
236: c < sizeof(namelist)/sizeof(namelist[0]);
237: c++)
238: if (namelist[c].n_type == 0)
239: fprintf(stderr, " %s",
240: namelist[c].n_name);
241: (void)fputc('\n', stderr);
242: exit(1);
243: } else
244: errx(1, "kvm_nlist: %s", kvm_geterr(kd));
245: }
246: #ifdef notyet
1.96 djm 247: } else if (setresgid(gid, gid, gid) == -1)
248: err(1, "setresgid");
1.59 heko 249: #endif /* notyet */
1.1 deraadt 250:
1.84 deraadt 251: mib[0] = CTL_HW;
252: mib[1] = HW_NCPU;
253: size = sizeof(ncpu);
254: (void) sysctl(mib, 2, &ncpu, &size, NULL, 0);
255:
1.1 deraadt 256: if (todo & VMSTAT) {
257: struct winsize winsize;
258:
1.6 tholo 259: dkinit(0); /* Initialize disk stats, no disks selected. */
260: argv = choosedrives(argv); /* Select disks. */
1.1 deraadt 261: winsize.ws_row = 0;
1.102 deraadt 262: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize);
1.1 deraadt 263: if (winsize.ws_row > 0)
264: winlines = winsize.ws_row;
265:
266: }
1.25 deraadt 267:
1.1 deraadt 268: #define BACKWARD_COMPATIBILITY
269: #ifdef BACKWARD_COMPATIBILITY
270: if (*argv) {
1.102 deraadt 271: interval = (u_int)strtonum(*argv, 0, 1000, &errstr);
272: if (errstr)
1.104 pedro 273: errx(1, "%s: %s", *argv, errstr);
1.103 deraadt 274:
1.1 deraadt 275: if (*++argv)
276: reps = atoi(*argv);
277: }
278: #endif
279:
280: if (interval) {
281: if (!reps)
282: reps = -1;
283: } else if (reps)
284: interval = 1;
285:
286: if (todo & FORKSTAT)
287: doforkst();
1.48 art 288: if (todo & MEMSTAT) {
1.1 deraadt 289: domem();
1.48 art 290: dopool();
291: }
1.1 deraadt 292: if (todo & SUMSTAT)
293: dosum();
294: if (todo & TIMESTAT)
295: dotimes();
296: if (todo & INTRSTAT)
297: dointr();
298: if (todo & VMSTAT)
299: dovmstat(interval, reps);
300: exit(0);
301: }
302:
303: char **
1.72 deraadt 304: choosedrives(char **argv)
1.1 deraadt 305: {
1.62 mpech 306: int i;
1.1 deraadt 307:
308: /*
309: * Choose drives to be displayed. Priority goes to (in order) drives
310: * supplied as arguments, default drives. If everything isn't filled
311: * in and there are drives not taken care of, display the first few
312: * that fit.
313: */
314: #define BACKWARD_COMPATIBILITY
315: for (ndrives = 0; *argv; ++argv) {
316: #ifdef BACKWARD_COMPATIBILITY
317: if (isdigit(**argv))
318: break;
319: #endif
320: for (i = 0; i < dk_ndrive; i++) {
321: if (strcmp(dr_name[i], *argv))
322: continue;
1.6 tholo 323: dk_select[i] = 1;
1.1 deraadt 324: ++ndrives;
325: break;
326: }
327: }
1.64 deraadt 328: for (i = 0; i < dk_ndrive && ndrives < 2; i++) {
1.6 tholo 329: if (dk_select[i])
1.1 deraadt 330: continue;
1.6 tholo 331: dk_select[i] = 1;
1.1 deraadt 332: ++ndrives;
333: }
334: return(argv);
335: }
336:
1.19 deraadt 337: time_t
1.72 deraadt 338: getuptime(void)
1.1 deraadt 339: {
1.102 deraadt 340: static struct timeval boottime;
1.11 deraadt 341: static time_t now;
1.1 deraadt 342: time_t uptime;
1.102 deraadt 343: size_t size;
1.50 art 344: int mib[2];
1.1 deraadt 345:
1.50 art 346: if (boottime.tv_sec == 0) {
1.56 angelos 347: if (nlistf == NULL && memf == NULL) {
1.50 art 348: size = sizeof(boottime);
349: mib[0] = CTL_KERN;
350: mib[1] = KERN_BOOTTIME;
351: if (sysctl(mib, 2, &boottime, &size, NULL, 0) < 0) {
1.56 angelos 352: warn("could not get kern.boottime");
1.50 art 353: bzero(&boottime, sizeof(boottime));
354: }
1.56 angelos 355: } else {
356: kread(X_BOOTTIME, &boottime, sizeof(boottime));
1.50 art 357: }
358: }
1.1 deraadt 359: (void)time(&now);
1.11 deraadt 360: uptime = now - boottime.tv_sec;
1.50 art 361: if (uptime <= 0 || uptime > 60*60*24*365*10)
362: errx(1, "time makes no sense; namelist must be wrong");
363:
1.1 deraadt 364: return(uptime);
365: }
366:
1.105 cloder 367: int hz;
368: volatile sig_atomic_t hdrcnt;
1.1 deraadt 369:
370: void
1.72 deraadt 371: dovmstat(u_int interval, int reps)
1.1 deraadt 372: {
373: time_t uptime, halfuptime;
1.50 art 374: struct clockinfo clkinfo;
1.102 deraadt 375: struct vmtotal total;
1.1 deraadt 376: size_t size;
1.102 deraadt 377: int mib[2];
1.1 deraadt 378:
379: uptime = getuptime();
380: halfuptime = uptime / 2;
381: (void)signal(SIGCONT, needhdr);
382:
1.50 art 383: mib[0] = CTL_KERN;
384: mib[1] = KERN_CLOCKRATE;
385: size = sizeof(clkinfo);
386: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) {
1.56 angelos 387: warn("could not read kern.clockrate");
1.50 art 388: return;
389: }
390: hz = clkinfo.stathz;
1.1 deraadt 391:
392: for (hdrcnt = 1;;) {
1.6 tholo 393: /* Read new disk statistics */
394: dkreadstats();
1.73 tdeval 395: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
396: printhdr();
1.56 angelos 397: if (nlistf == NULL && memf == NULL) {
398: size = sizeof(struct uvmexp);
1.52 angelos 399: mib[0] = CTL_VM;
400: mib[1] = VM_UVMEXP;
401: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 402: warn("could not get vm.uvmexp");
403: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 404: }
1.56 angelos 405: } else {
406: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 407: }
1.1 deraadt 408: size = sizeof(total);
409: mib[0] = CTL_VM;
410: mib[1] = VM_METER;
411: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
1.56 angelos 412: warn("could not read vm.vmmeter");
1.1 deraadt 413: bzero(&total, sizeof(total));
414: }
1.22 millert 415: (void)printf("%2u%2u%2u",
1.1 deraadt 416: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.29 art 417: #define rate(x) (((x) + halfuptime) / uptime) /* round */
1.102 deraadt 418: #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10))
1.106 ! sobrado 419: (void)printf("%7u %7u ",
1.1 deraadt 420: pgtok(total.t_avm), pgtok(total.t_free));
1.106 ! sobrado 421: (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 422: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
423: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
424: (void)printf("%3u %3u ",
425: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
426: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
427: dkstats();
1.64 deraadt 428: (void)printf("%4u %5u %4u ",
1.29 art 429: rate(uvmexp.intrs - ouvmexp.intrs),
430: rate(uvmexp.syscalls - ouvmexp.syscalls),
431: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 432: cpustats();
433: (void)printf("\n");
434: (void)fflush(stdout);
435: if (reps >= 0 && --reps <= 0)
436: break;
1.29 art 437: ouvmexp = uvmexp;
1.1 deraadt 438: uptime = interval;
439: /*
440: * We round upward to avoid losing low-frequency events
441: * (i.e., >= 1 per interval but < 1 per second).
442: */
1.14 deraadt 443: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 444: (void)sleep(interval);
445: }
446: }
447:
1.21 millert 448: void
1.72 deraadt 449: printhdr(void)
1.1 deraadt 450: {
1.62 mpech 451: int i;
1.1 deraadt 452:
1.106 ! sobrado 453: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 454: if (ndrives > 0)
1.106 ! sobrado 455: (void)printf("%s %*straps cpu\n",
1.6 tholo 456: ((ndrives > 1) ? "disks" : "disk"),
1.106 ! sobrado 457: ((ndrives > 1) ? ndrives * 4 - 5 : 0), "");
1.1 deraadt 458: else
1.106 ! sobrado 459: (void)printf("%*s traps cpu\n",
1.6 tholo 460: ndrives * 3, "");
461:
1.106 ! sobrado 462: (void)printf(" r b w avm fre flt re pi po fr sr ");
1.1 deraadt 463: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 464: if (dk_select[i])
1.67 ho 465: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 466: dr_name[i][1],
1.1 deraadt 467: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 468: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 469: hdrcnt = winlines - 2;
470: }
471:
472: /*
473: * Force a header to be prepended to the next output.
474: */
1.90 deraadt 475: /* ARGSUSED */
1.1 deraadt 476: void
1.78 deraadt 477: needhdr(int signo)
1.1 deraadt 478: {
479:
480: hdrcnt = 1;
481: }
482:
483: void
1.72 deraadt 484: dotimes(void)
1.1 deraadt 485: {
486: u_int pgintime, rectime;
1.102 deraadt 487: size_t size;
1.52 angelos 488: int mib[2];
1.1 deraadt 489:
1.56 angelos 490: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 491: pgintime = 0;
492: rectime = 0;
1.56 angelos 493:
494: if (nlistf == NULL && memf == NULL) {
495: size = sizeof(struct uvmexp);
1.52 angelos 496: mib[0] = CTL_VM;
497: mib[1] = VM_UVMEXP;
498: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 499: warn("could not read vm.uvmexp");
500: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 501: }
1.56 angelos 502: } else {
503: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 504: }
505:
1.29 art 506: (void)printf("%u reactivates, %u total time (usec)\n",
507: uvmexp.pdreact, rectime);
1.89 miod 508: if (uvmexp.pdreact != 0)
509: (void)printf("average: %u usec / reclaim\n",
510: rectime / uvmexp.pdreact);
1.29 art 511: (void)printf("\n");
512: (void)printf("%u page ins, %u total time (msec)\n",
513: uvmexp.pageins, pgintime / 10);
1.89 miod 514: if (uvmexp.pageins != 0)
515: (void)printf("average: %8.1f msec / page in\n",
1.103 deraadt 516: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 517: }
518:
1.21 millert 519: int
1.72 deraadt 520: pct(long top, long bot)
1.1 deraadt 521: {
1.102 deraadt 522: int ans;
1.1 deraadt 523:
524: if (bot == 0)
525: return(0);
526: ans = (quad_t)top * 100 / bot;
527: return (ans);
528: }
529:
530: #define PCT(top, bot) pct((long)(top), (long)(bot))
531:
532: void
1.72 deraadt 533: dosum(void)
1.1 deraadt 534: {
535: struct nchstats nchstats;
1.102 deraadt 536: int mib[2], nselcoll;
1.1 deraadt 537: long nchtotal;
1.52 angelos 538: size_t size;
1.1 deraadt 539:
1.56 angelos 540: if (nlistf == NULL && memf == NULL) {
541: size = sizeof(struct uvmexp);
1.52 angelos 542: mib[0] = CTL_VM;
543: mib[1] = VM_UVMEXP;
544: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 545: warn("could not read vm.uvmexp");
546: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 547: }
1.56 angelos 548: } else {
549: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 550: }
551:
1.32 art 552: /* vm_page constants */
1.35 hugh 553: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 554:
555: /* vm_page counters */
1.35 hugh 556: (void)printf("%11u pages managed\n", uvmexp.npages);
557: (void)printf("%11u pages free\n", uvmexp.free);
558: (void)printf("%11u pages active\n", uvmexp.active);
559: (void)printf("%11u pages inactive\n", uvmexp.inactive);
560: (void)printf("%11u pages being paged out\n", uvmexp.paging);
561: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 562: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 563: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 564: uvmexp.reserve_pagedaemon);
1.35 hugh 565: (void)printf("%11u pages reserved for kernel\n",
1.48 art 566: uvmexp.reserve_kernel);
1.32 art 567:
568: /* swap */
1.35 hugh 569: (void)printf("%11u swap pages\n", uvmexp.swpages);
570: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
571: (void)printf("%11u total anon's in system\n", uvmexp.nanon);
572: (void)printf("%11u free anon's\n", uvmexp.nfreeanon);
1.32 art 573:
574: /* stat counters */
1.35 hugh 575: (void)printf("%11u page faults\n", uvmexp.faults);
576: (void)printf("%11u traps\n", uvmexp.traps);
577: (void)printf("%11u interrupts\n", uvmexp.intrs);
578: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
1.95 mickey 579: (void)printf("%11u fpu context switches\n", uvmexp.fpswtch);
1.35 hugh 580: (void)printf("%11u software interrupts\n", uvmexp.softs);
581: (void)printf("%11u syscalls\n", uvmexp.syscalls);
582: (void)printf("%11u pagein operations\n", uvmexp.pageins);
583: (void)printf("%11u swap ins\n", uvmexp.swapins);
584: (void)printf("%11u swap outs\n", uvmexp.swapouts);
585: (void)printf("%11u forks\n", uvmexp.forks);
586: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 587: uvmexp.forks_sharevm);
1.97 pedro 588: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.32 art 589:
590: /* daemon counters */
1.64 deraadt 591: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 592: uvmexp.pdwoke);
1.35 hugh 593: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
594: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
595: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
596: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
597: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 598:
1.56 angelos 599: if (nlistf == NULL && memf == NULL) {
1.52 angelos 600: size = sizeof(nchstats);
601: mib[0] = CTL_KERN;
602: mib[1] = KERN_NCHSTATS;
603: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 604: warn("could not read kern.nchstats");
1.52 angelos 605: bzero(&nchstats, sizeof(nchstats));
606: }
1.56 angelos 607: } else {
608: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 609: }
610:
1.1 deraadt 611: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
612: nchstats.ncs_badhits + nchstats.ncs_falsehits +
613: nchstats.ncs_miss + nchstats.ncs_long;
1.35 hugh 614: (void)printf("%11ld total name lookups\n", nchtotal);
1.52 angelos 615: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
616: "per-directory\n",
1.1 deraadt 617: "", PCT(nchstats.ncs_goodhits, nchtotal),
618: PCT(nchstats.ncs_neghits, nchtotal),
619: PCT(nchstats.ncs_pass2, nchtotal));
1.35 hugh 620: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.1 deraadt 621: PCT(nchstats.ncs_badhits, nchtotal),
622: PCT(nchstats.ncs_falsehits, nchtotal),
623: PCT(nchstats.ncs_long, nchtotal));
1.52 angelos 624:
1.56 angelos 625: if (nlistf == NULL && memf == NULL) {
1.52 angelos 626: size = sizeof(nselcoll);
627: mib[0] = CTL_KERN;
628: mib[1] = KERN_NSELCOLL;
629: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 630: warn("could not read kern.nselcoll");
1.52 angelos 631: nselcoll = 0;
632: }
1.56 angelos 633: } else {
634: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 635: }
1.50 art 636: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 637: }
638:
639: void
1.72 deraadt 640: doforkst(void)
1.1 deraadt 641: {
642: struct forkstat fks;
1.52 angelos 643: size_t size;
644: int mib[2];
645:
1.56 angelos 646: if (nlistf == NULL && memf == NULL) {
1.52 angelos 647: size = sizeof(struct forkstat);
648: mib[0] = CTL_KERN;
649: mib[1] = KERN_FORKSTAT;
650: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 651: warn("could not read kern.forkstat");
1.52 angelos 652: bzero(&fks, sizeof(struct forkstat));
653: }
1.56 angelos 654: } else {
655: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 656: }
1.1 deraadt 657:
658: (void)printf("%d forks, %d pages, average %.2f\n",
659: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
660: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 661: fks.cntvfork, fks.sizvfork,
662: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.12 tholo 663: (void)printf("%d rforks, %d pages, average %.2f\n",
1.72 deraadt 664: fks.cntrfork, fks.sizrfork,
665: (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
1.36 niklas 666: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 667: fks.cntkthread, fks.sizkthread,
668: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 669: }
670:
671: void
1.72 deraadt 672: dkstats(void)
1.1 deraadt 673: {
1.62 mpech 674: int dn, state;
1.1 deraadt 675: double etime;
676:
1.6 tholo 677: /* Calculate disk stat deltas. */
678: dkswap();
1.1 deraadt 679: etime = 0;
680: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 681: etime += cur.cp_time[state];
1.1 deraadt 682: }
683: if (etime == 0)
684: etime = 1;
685: etime /= hz;
1.84 deraadt 686: etime /= ncpu;
1.1 deraadt 687: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 688: if (!dk_select[dn])
1.1 deraadt 689: continue;
1.82 tedu 690: (void)printf("%3.0f ",
691: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 692: }
693: }
694:
695: void
1.72 deraadt 696: cpustats(void)
1.1 deraadt 697: {
1.102 deraadt 698: double percent, total;
1.62 mpech 699: int state;
1.1 deraadt 700:
701: total = 0;
702: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 703: total += cur.cp_time[state];
1.1 deraadt 704: if (total)
1.101 otto 705: percent = 100 / total;
1.1 deraadt 706: else
1.101 otto 707: percent = 0;
708: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
709: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent);
710: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 711: }
712:
713: void
1.72 deraadt 714: dointr(void)
1.74 art 715: {
1.102 deraadt 716: int nintr, mib[4], i;
717: char intrname[128];
718: u_int64_t inttotal;
1.74 art 719: time_t uptime;
720: size_t siz;
721:
1.93 miod 722: if (nlistf != NULL || memf != NULL) {
723: errx(1,
724: "interrupt statistics are only available on live kernels");
725: }
726:
1.74 art 727: uptime = getuptime();
728:
729: mib[0] = CTL_KERN;
730: mib[1] = KERN_INTRCNT;
731: mib[2] = KERN_INTRCNT_NUM;
732: siz = sizeof(nintr);
733: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
734: warnx("could not read kern.intrcnt.nintrcnt");
735: return;
736: }
737:
1.91 deraadt 738: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 739:
1.74 art 740: inttotal = 0;
741: for (i = 0; i < nintr; i++) {
1.87 aaron 742: char name[128];
1.90 deraadt 743: u_quad_t cnt;
1.87 aaron 744: int vector;
1.74 art 745:
746: mib[0] = CTL_KERN;
747: mib[1] = KERN_INTRCNT;
748: mib[2] = KERN_INTRCNT_NAME;
749: mib[3] = i;
1.87 aaron 750: siz = sizeof(name);
751: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 752: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 753: return;
754: }
755:
756: mib[0] = CTL_KERN;
757: mib[1] = KERN_INTRCNT;
758: mib[2] = KERN_INTRCNT_VECTOR;
759: mib[3] = i;
760: siz = sizeof(vector);
761: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
762: strlcpy(intrname, name, sizeof(intrname));
763: } else {
764: snprintf(intrname, sizeof(intrname), "irq%d/%s",
765: vector, name);
1.74 art 766: }
767:
768: mib[0] = CTL_KERN;
769: mib[1] = KERN_INTRCNT;
770: mib[2] = KERN_INTRCNT_CNT;
771: mib[3] = i;
772: siz = sizeof(cnt);
773: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 774: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 775: return;
1.74 art 776: }
1.90 deraadt 777:
1.87 aaron 778: if (cnt || zflag)
1.91 deraadt 779: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 780: cnt, cnt / uptime);
1.74 art 781: inttotal += cnt;
782: }
783:
1.91 deraadt 784: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 785: inttotal / uptime);
1.1 deraadt 786: }
787:
788: /*
789: * These names are defined in <sys/malloc.h>.
790: */
1.101 otto 791: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 792:
793: void
1.72 deraadt 794: domem(void)
1.1 deraadt 795: {
1.102 deraadt 796: struct kmembuckets buckets[MINBUCKET + 16], *kp;
797: struct kmemstats kmemstats[M_LAST], *ks;
798: int i, j, len, size, first, mib[4];
1.50 art 799: u_long totuse = 0, totfree = 0;
1.102 deraadt 800: char buf[BUFSIZ], *bufp, *ap;
1.50 art 801: quad_t totreq = 0;
1.101 otto 802: const char *name;
1.50 art 803: size_t siz;
804:
805: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 806: mib[0] = CTL_KERN;
1.50 art 807: mib[1] = KERN_MALLOCSTATS;
808: mib[2] = KERN_MALLOC_BUCKETS;
809: siz = sizeof(buf);
810: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 811: warnx("could not read kern.malloc.buckets");
1.50 art 812: return;
813: }
814:
815: bufp = buf;
816: mib[2] = KERN_MALLOC_BUCKET;
817: siz = sizeof(struct kmembuckets);
818: i = 0;
819: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 820: mib[3] = atoi(ap);
1.50 art 821:
822: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 823: NULL, 0) < 0) {
1.56 angelos 824: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 825: return;
826: }
827: i++;
828: }
829: } else {
1.53 deraadt 830: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 831: }
1.1 deraadt 832:
1.18 kstailey 833: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
834: i++, kp++) {
1.65 art 835: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 836: continue;
1.18 kstailey 837: if (first) {
838: (void)printf("Memory statistics by bucket size\n");
839: (void)printf(
1.50 art 840: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 841: first = 0;
842: }
1.1 deraadt 843: size = 1 << i;
1.60 art 844: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
845: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
846: (unsigned long long)kp->kb_totalfree,
847: (unsigned long long)kp->kb_calls,
848: (unsigned long long)kp->kb_highwat,
849: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 850: totfree += size * kp->kb_totalfree;
1.18 kstailey 851: }
852:
853: /*
854: * If kmem statistics are not being gathered by the kernel,
855: * first will still be 1.
856: */
857: if (first) {
858: printf(
859: "Kmem statistics are not being gathered by the kernel.\n");
860: return;
1.1 deraadt 861: }
862:
1.52 angelos 863: if (memf == NULL && nlistf == NULL) {
864: bzero(kmemstats, sizeof(kmemstats));
865: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 866: mib[0] = CTL_KERN;
1.52 angelos 867: mib[1] = KERN_MALLOCSTATS;
868: mib[2] = KERN_MALLOC_KMEMSTATS;
869: mib[3] = i;
870: siz = sizeof(struct kmemstats);
871:
1.103 deraadt 872: /*
1.52 angelos 873: * Skip errors -- these are presumed to be unallocated
874: * entries.
875: */
876: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
877: continue;
878: }
879: } else {
880: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
881: }
882:
1.1 deraadt 883: (void)printf("\nMemory usage type by bucket size\n");
884: (void)printf(" Size Type(s)\n");
885: kp = &buckets[MINBUCKET];
886: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
887: if (kp->kb_calls == 0)
888: continue;
889: first = 1;
890: len = 8;
891: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
892: if (ks->ks_calls == 0)
893: continue;
894: if ((ks->ks_size & j) == 0)
895: continue;
896: name = kmemnames[i] ? kmemnames[i] : "undefined";
897: len += 2 + strlen(name);
898: if (first)
899: printf("%8d %s", j, name);
900: else
901: printf(",");
902: if (len >= 80) {
903: printf("\n\t ");
904: len = 10 + strlen(name);
905: }
906: if (!first)
907: printf(" %s", name);
908: first = 0;
909: }
910: printf("\n");
911: }
912:
913: (void)printf(
1.26 deraadt 914: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 915: (void)printf(
1.26 deraadt 916: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 917: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
918: if (ks->ks_calls == 0)
919: continue;
1.24 mickey 920: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 921: kmemnames[i] ? kmemnames[i] : "undefined",
922: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
923: (ks->ks_maxused + 1023) / 1024,
924: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
925: ks->ks_limblocks, ks->ks_mapblocks);
926: first = 1;
927: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
928: if ((ks->ks_size & j) == 0)
929: continue;
930: if (first)
931: printf(" %d", j);
932: else
933: printf(",%d", j);
934: first = 0;
935: }
936: printf("\n");
937: totuse += ks->ks_memuse;
938: totreq += ks->ks_calls;
939: }
940: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 941: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 942: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
943: }
944:
1.54 art 945: static void
946: print_pool(struct pool *pp, char *name)
947: {
948: static int first = 1;
1.102 deraadt 949: char maxp[32];
1.54 art 950: int ovflw;
951:
952: if (first) {
953: (void)printf("Memory resource pool statistics\n");
954: (void)printf(
955: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
956: "Name",
957: "Size",
958: "Requests",
959: "Fail",
960: "Releases",
961: "Pgreq",
962: "Pgrel",
963: "Npage",
964: "Hiwat",
965: "Minpg",
966: "Maxpg",
967: "Idle");
968: first = 0;
969: }
1.65 art 970:
971: /* Skip unused pools unless verbose output. */
972: if (pp->pr_nget == 0 && !verbose)
973: return;
974:
1.54 art 975: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 976: snprintf(maxp, sizeof maxp, "inf");
1.54 art 977: else
1.69 deraadt 978: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 979: /*
980: * Print single word. `ovflow' is number of characters didn't fit
981: * on the last word. `fmt' is a format string to print this word.
982: * It must contain asterisk for field width. `width' is a width
983: * occupied by this word. `fixed' is a number of constant chars in
984: * `fmt'. `val' is a value to be printed using format string `fmt'.
985: */
986: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
987: (ovflw) += printf((fmt), \
988: (width) - (fixed) - (ovflw) > 0 ? \
989: (width) - (fixed) - (ovflw) : 0, \
990: (val)) - (width); \
991: if ((ovflw) < 0) \
992: (ovflw) = 0; \
993: } while (/* CONSTCOND */0)
994:
995: ovflw = 0;
996: PRWORD(ovflw, "%-*s", 11, 0, name);
997: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
998: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
999: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
1000: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nput);
1001: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
1002: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
1003: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
1004: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
1005: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
1006: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 1007: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 1008: }
1009:
1.55 art 1010: static void dopool_kvm(void);
1011: static void dopool_sysctl(void);
1012:
1.48 art 1013: void
1014: dopool(void)
1015: {
1.55 art 1016: if (nlistf == NULL && memf == NULL)
1017: dopool_sysctl();
1018: else
1019: dopool_kvm();
1020: }
1021:
1022: void
1023: dopool_sysctl(void)
1024: {
1.102 deraadt 1025: int mib[4], npools, i, kmfp;
1.63 art 1026: long total = 0, inuse = 0;
1.55 art 1027: struct pool pool;
1028: size_t size;
1029:
1030: mib[0] = CTL_KERN;
1031: mib[1] = KERN_POOL;
1032: mib[2] = KERN_POOL_NPOOLS;
1033: size = sizeof(npools);
1034: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 1035: warn("can't figure out number of pools in kernel");
1.55 art 1036: return;
1037: }
1038:
1039: for (i = 1; npools; i++) {
1040: char name[32];
1041:
1042: mib[0] = CTL_KERN;
1043: mib[1] = KERN_POOL;
1044: mib[2] = KERN_POOL_POOL;
1045: mib[3] = i;
1046: size = sizeof(struct pool);
1047: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
1048: if (errno == ENOENT)
1049: continue;
1.92 pedro 1050: warn("error getting pool");
1.55 art 1051: return;
1052: }
1053: npools--;
1054: mib[2] = KERN_POOL_NAME;
1055: size = sizeof(name);
1056: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1057: warn("error getting pool name");
1.55 art 1058: return;
1059: }
1060: print_pool(&pool, name);
1.63 art 1061:
1062: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1063: total += pool.pr_npages * getpagesize(); /* XXX */
1.55 art 1064: }
1.63 art 1065:
1066: inuse /= 1024;
1067: total /= 1024;
1.98 mickey 1068: if (!kreado(namelist2, &kmfp, sizeof(kmfp)))
1069: total += kmfp * (getpagesize() / 1024);
1.63 art 1070: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1071: inuse, total, (double)(100 * inuse) / total);
1.55 art 1072: }
1073:
1074: void
1075: dopool_kvm(void)
1076: {
1.48 art 1077: TAILQ_HEAD(,pool) pool_head;
1078: struct pool pool, *pp = &pool;
1.102 deraadt 1079: long total = 0, inuse = 0;
1080: u_long addr;
1.98 mickey 1081: int kmfp;
1.48 art 1082:
1083: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.102 deraadt 1084: addr = (u_long)TAILQ_FIRST(&pool_head);
1.48 art 1085:
1.55 art 1086: while (addr != 0) {
1.54 art 1087: char name[32];
1.56 angelos 1088:
1.48 art 1089: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1090: (void)fprintf(stderr,
1091: "vmstat: pool chain trashed: %s\n",
1092: kvm_geterr(kd));
1093: exit(1);
1094: }
1.102 deraadt 1095: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1096: (void)fprintf(stderr,
1097: "vmstat: pool name trashed: %s\n",
1098: kvm_geterr(kd));
1099: exit(1);
1100: }
1.56 angelos 1101:
1.48 art 1102: name[31] = '\0';
1103:
1.54 art 1104: print_pool(pp, name);
1.48 art 1105:
1106: inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
1.63 art 1107: total += pp->pr_npages * getpagesize(); /* XXX */
1.56 angelos 1108:
1.102 deraadt 1109: addr = (u_long)TAILQ_NEXT(pp, pr_poollist);
1.48 art 1110: }
1111:
1112: inuse /= 1024;
1113: total /= 1024;
1.98 mickey 1114: if (!kreado(namelist2, &kmfp, sizeof(kmfp)))
1115: total += kmfp * (getpagesize() / 1024);
1.48 art 1116: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1117: inuse, total, (double)(100 * inuse) / total);
1118: }
1119:
1.1 deraadt 1120: /*
1121: * kread reads something from the kernel, given its nlist index.
1122: */
1123: void
1.72 deraadt 1124: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1125: {
1126: char *sym;
1127:
1128: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1129: sym = namelist[nlx].n_name;
1130: if (*sym == '_')
1131: ++sym;
1.50 art 1132: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1133: }
1134: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1135: sym = namelist[nlx].n_name;
1136: if (*sym == '_')
1137: ++sym;
1.50 art 1138: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1139: }
1.98 mickey 1140: }
1141:
1142: /*
1.99 martin 1143: * kreado reads something from the kernel, given its nlist index.
1.98 mickey 1144: */
1145: int
1146: kreado(struct nlist *nl, void *addr, size_t size)
1147: {
1148: int c;
1149:
1150: if ((c = kvm_nlist(kd, nl)) != 0)
1151: return (c);
1152:
1153: if (nl->n_type == 0 || nl->n_value == 0)
1154: return (-1);
1155:
1156: if (kvm_read(kd, nl->n_value, addr, size) != size)
1157: return (-1);
1158:
1159: return (0);
1.1 deraadt 1160: }
1161:
1162: void
1.72 deraadt 1163: usage(void)
1.1 deraadt 1164: {
1.88 jmc 1165: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.50 art 1166: "[-N system] [-w wait] [disks]\n", __progname);
1.1 deraadt 1167: exit(1);
1168: }
![[BACK]](/icons/back.gif){kind=icon}
Return to vmstat.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / vmstat