Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.104
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.104 ! pedro 2: /* $OpenBSD: vmstat.c,v 1.103 2006/03/31 18:19:38 deraadt 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
1.104 ! pedro 43: static const char rcsid[] = "$OpenBSD: vmstat.c,v 1.103 2006/03/31 18:19:38 deraadt 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:
367: int hz, hdrcnt;
368:
369: void
1.72 deraadt 370: dovmstat(u_int interval, int reps)
1.1 deraadt 371: {
372: time_t uptime, halfuptime;
1.50 art 373: struct clockinfo clkinfo;
1.102 deraadt 374: struct vmtotal total;
1.1 deraadt 375: size_t size;
1.102 deraadt 376: int mib[2];
1.1 deraadt 377:
378: uptime = getuptime();
379: halfuptime = uptime / 2;
380: (void)signal(SIGCONT, needhdr);
381:
1.50 art 382: mib[0] = CTL_KERN;
383: mib[1] = KERN_CLOCKRATE;
384: size = sizeof(clkinfo);
385: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) {
1.56 angelos 386: warn("could not read kern.clockrate");
1.50 art 387: return;
388: }
389: hz = clkinfo.stathz;
1.1 deraadt 390:
391: for (hdrcnt = 1;;) {
1.6 tholo 392: /* Read new disk statistics */
393: dkreadstats();
1.73 tdeval 394: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
395: printhdr();
1.56 angelos 396: if (nlistf == NULL && memf == NULL) {
397: size = sizeof(struct uvmexp);
1.52 angelos 398: mib[0] = CTL_VM;
399: mib[1] = VM_UVMEXP;
400: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 401: warn("could not get vm.uvmexp");
402: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 403: }
1.56 angelos 404: } else {
405: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 406: }
1.1 deraadt 407: size = sizeof(total);
408: mib[0] = CTL_VM;
409: mib[1] = VM_METER;
410: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
1.56 angelos 411: warn("could not read vm.vmmeter");
1.1 deraadt 412: bzero(&total, sizeof(total));
413: }
1.22 millert 414: (void)printf("%2u%2u%2u",
1.1 deraadt 415: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.29 art 416: #define rate(x) (((x) + halfuptime) / uptime) /* round */
1.102 deraadt 417: #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10))
1.35 hugh 418: (void)printf("%7u%7u ",
1.1 deraadt 419: pgtok(total.t_avm), pgtok(total.t_free));
1.64 deraadt 420: (void)printf("%5u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 421: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
422: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
423: (void)printf("%3u %3u ",
424: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
425: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
426: dkstats();
1.64 deraadt 427: (void)printf("%4u %5u %4u ",
1.29 art 428: rate(uvmexp.intrs - ouvmexp.intrs),
429: rate(uvmexp.syscalls - ouvmexp.syscalls),
430: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 431: cpustats();
432: (void)printf("\n");
433: (void)fflush(stdout);
434: if (reps >= 0 && --reps <= 0)
435: break;
1.29 art 436: ouvmexp = uvmexp;
1.1 deraadt 437: uptime = interval;
438: /*
439: * We round upward to avoid losing low-frequency events
440: * (i.e., >= 1 per interval but < 1 per second).
441: */
1.14 deraadt 442: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 443: (void)sleep(interval);
444: }
445: }
446:
1.21 millert 447: void
1.72 deraadt 448: printhdr(void)
1.1 deraadt 449: {
1.62 mpech 450: int i;
1.1 deraadt 451:
1.67 ho 452: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 453: if (ndrives > 0)
1.79 tedu 454: (void)printf("%s %*straps cpu\n",
1.6 tholo 455: ((ndrives > 1) ? "disks" : "disk"),
1.64 deraadt 456: ((ndrives > 1) ? ndrives * 4 - 4 : 0), "");
1.1 deraadt 457: else
1.79 tedu 458: (void)printf("%*s traps cpu\n",
1.6 tholo 459: ndrives * 3, "");
460:
1.64 deraadt 461: (void)printf(" r b w avm fre flt re pi po fr sr ");
1.1 deraadt 462: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 463: if (dk_select[i])
1.67 ho 464: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 465: dr_name[i][1],
1.1 deraadt 466: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 467: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 468: hdrcnt = winlines - 2;
469: }
470:
471: /*
472: * Force a header to be prepended to the next output.
473: */
1.90 deraadt 474: /* ARGSUSED */
1.1 deraadt 475: void
1.78 deraadt 476: needhdr(int signo)
1.1 deraadt 477: {
478:
479: hdrcnt = 1;
480: }
481:
482: void
1.72 deraadt 483: dotimes(void)
1.1 deraadt 484: {
485: u_int pgintime, rectime;
1.102 deraadt 486: size_t size;
1.52 angelos 487: int mib[2];
1.1 deraadt 488:
1.56 angelos 489: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 490: pgintime = 0;
491: rectime = 0;
1.56 angelos 492:
493: if (nlistf == NULL && memf == NULL) {
494: size = sizeof(struct uvmexp);
1.52 angelos 495: mib[0] = CTL_VM;
496: mib[1] = VM_UVMEXP;
497: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 498: warn("could not read vm.uvmexp");
499: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 500: }
1.56 angelos 501: } else {
502: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 503: }
504:
1.29 art 505: (void)printf("%u reactivates, %u total time (usec)\n",
506: uvmexp.pdreact, rectime);
1.89 miod 507: if (uvmexp.pdreact != 0)
508: (void)printf("average: %u usec / reclaim\n",
509: rectime / uvmexp.pdreact);
1.29 art 510: (void)printf("\n");
511: (void)printf("%u page ins, %u total time (msec)\n",
512: uvmexp.pageins, pgintime / 10);
1.89 miod 513: if (uvmexp.pageins != 0)
514: (void)printf("average: %8.1f msec / page in\n",
1.103 deraadt 515: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 516: }
517:
1.21 millert 518: int
1.72 deraadt 519: pct(long top, long bot)
1.1 deraadt 520: {
1.102 deraadt 521: int ans;
1.1 deraadt 522:
523: if (bot == 0)
524: return(0);
525: ans = (quad_t)top * 100 / bot;
526: return (ans);
527: }
528:
529: #define PCT(top, bot) pct((long)(top), (long)(bot))
530:
531: void
1.72 deraadt 532: dosum(void)
1.1 deraadt 533: {
534: struct nchstats nchstats;
1.102 deraadt 535: int mib[2], nselcoll;
1.1 deraadt 536: long nchtotal;
1.52 angelos 537: size_t size;
1.1 deraadt 538:
1.56 angelos 539: if (nlistf == NULL && memf == NULL) {
540: size = sizeof(struct uvmexp);
1.52 angelos 541: mib[0] = CTL_VM;
542: mib[1] = VM_UVMEXP;
543: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 544: warn("could not read vm.uvmexp");
545: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 546: }
1.56 angelos 547: } else {
548: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 549: }
550:
1.32 art 551: /* vm_page constants */
1.35 hugh 552: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 553:
554: /* vm_page counters */
1.35 hugh 555: (void)printf("%11u pages managed\n", uvmexp.npages);
556: (void)printf("%11u pages free\n", uvmexp.free);
557: (void)printf("%11u pages active\n", uvmexp.active);
558: (void)printf("%11u pages inactive\n", uvmexp.inactive);
559: (void)printf("%11u pages being paged out\n", uvmexp.paging);
560: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 561: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 562: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 563: uvmexp.reserve_pagedaemon);
1.35 hugh 564: (void)printf("%11u pages reserved for kernel\n",
1.48 art 565: uvmexp.reserve_kernel);
1.32 art 566:
567: /* swap */
1.35 hugh 568: (void)printf("%11u swap pages\n", uvmexp.swpages);
569: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
570: (void)printf("%11u total anon's in system\n", uvmexp.nanon);
571: (void)printf("%11u free anon's\n", uvmexp.nfreeanon);
1.32 art 572:
573: /* stat counters */
1.35 hugh 574: (void)printf("%11u page faults\n", uvmexp.faults);
575: (void)printf("%11u traps\n", uvmexp.traps);
576: (void)printf("%11u interrupts\n", uvmexp.intrs);
577: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
1.95 mickey 578: (void)printf("%11u fpu context switches\n", uvmexp.fpswtch);
1.35 hugh 579: (void)printf("%11u software interrupts\n", uvmexp.softs);
580: (void)printf("%11u syscalls\n", uvmexp.syscalls);
581: (void)printf("%11u pagein operations\n", uvmexp.pageins);
582: (void)printf("%11u swap ins\n", uvmexp.swapins);
583: (void)printf("%11u swap outs\n", uvmexp.swapouts);
584: (void)printf("%11u forks\n", uvmexp.forks);
585: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 586: uvmexp.forks_sharevm);
1.97 pedro 587: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.32 art 588:
589: /* daemon counters */
1.64 deraadt 590: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 591: uvmexp.pdwoke);
1.35 hugh 592: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
593: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
594: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
595: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
596: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 597:
1.56 angelos 598: if (nlistf == NULL && memf == NULL) {
1.52 angelos 599: size = sizeof(nchstats);
600: mib[0] = CTL_KERN;
601: mib[1] = KERN_NCHSTATS;
602: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 603: warn("could not read kern.nchstats");
1.52 angelos 604: bzero(&nchstats, sizeof(nchstats));
605: }
1.56 angelos 606: } else {
607: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 608: }
609:
1.1 deraadt 610: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
611: nchstats.ncs_badhits + nchstats.ncs_falsehits +
612: nchstats.ncs_miss + nchstats.ncs_long;
1.35 hugh 613: (void)printf("%11ld total name lookups\n", nchtotal);
1.52 angelos 614: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
615: "per-directory\n",
1.1 deraadt 616: "", PCT(nchstats.ncs_goodhits, nchtotal),
617: PCT(nchstats.ncs_neghits, nchtotal),
618: PCT(nchstats.ncs_pass2, nchtotal));
1.35 hugh 619: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.1 deraadt 620: PCT(nchstats.ncs_badhits, nchtotal),
621: PCT(nchstats.ncs_falsehits, nchtotal),
622: PCT(nchstats.ncs_long, nchtotal));
1.52 angelos 623:
1.56 angelos 624: if (nlistf == NULL && memf == NULL) {
1.52 angelos 625: size = sizeof(nselcoll);
626: mib[0] = CTL_KERN;
627: mib[1] = KERN_NSELCOLL;
628: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 629: warn("could not read kern.nselcoll");
1.52 angelos 630: nselcoll = 0;
631: }
1.56 angelos 632: } else {
633: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 634: }
1.50 art 635: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 636: }
637:
638: void
1.72 deraadt 639: doforkst(void)
1.1 deraadt 640: {
641: struct forkstat fks;
1.52 angelos 642: size_t size;
643: int mib[2];
644:
1.56 angelos 645: if (nlistf == NULL && memf == NULL) {
1.52 angelos 646: size = sizeof(struct forkstat);
647: mib[0] = CTL_KERN;
648: mib[1] = KERN_FORKSTAT;
649: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 650: warn("could not read kern.forkstat");
1.52 angelos 651: bzero(&fks, sizeof(struct forkstat));
652: }
1.56 angelos 653: } else {
654: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 655: }
1.1 deraadt 656:
657: (void)printf("%d forks, %d pages, average %.2f\n",
658: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
659: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 660: fks.cntvfork, fks.sizvfork,
661: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.12 tholo 662: (void)printf("%d rforks, %d pages, average %.2f\n",
1.72 deraadt 663: fks.cntrfork, fks.sizrfork,
664: (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
1.36 niklas 665: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 666: fks.cntkthread, fks.sizkthread,
667: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 668: }
669:
670: void
1.72 deraadt 671: dkstats(void)
1.1 deraadt 672: {
1.62 mpech 673: int dn, state;
1.1 deraadt 674: double etime;
675:
1.6 tholo 676: /* Calculate disk stat deltas. */
677: dkswap();
1.1 deraadt 678: etime = 0;
679: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 680: etime += cur.cp_time[state];
1.1 deraadt 681: }
682: if (etime == 0)
683: etime = 1;
684: etime /= hz;
1.84 deraadt 685: etime /= ncpu;
1.1 deraadt 686: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 687: if (!dk_select[dn])
1.1 deraadt 688: continue;
1.82 tedu 689: (void)printf("%3.0f ",
690: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 691: }
692: }
693:
694: void
1.72 deraadt 695: cpustats(void)
1.1 deraadt 696: {
1.102 deraadt 697: double percent, total;
1.62 mpech 698: int state;
1.1 deraadt 699:
700: total = 0;
701: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 702: total += cur.cp_time[state];
1.1 deraadt 703: if (total)
1.101 otto 704: percent = 100 / total;
1.1 deraadt 705: else
1.101 otto 706: percent = 0;
707: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
708: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent);
709: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 710: }
711:
712: void
1.72 deraadt 713: dointr(void)
1.74 art 714: {
1.102 deraadt 715: int nintr, mib[4], i;
716: char intrname[128];
717: u_int64_t inttotal;
1.74 art 718: time_t uptime;
719: size_t siz;
720:
1.93 miod 721: if (nlistf != NULL || memf != NULL) {
722: errx(1,
723: "interrupt statistics are only available on live kernels");
724: }
725:
1.74 art 726: uptime = getuptime();
727:
728: mib[0] = CTL_KERN;
729: mib[1] = KERN_INTRCNT;
730: mib[2] = KERN_INTRCNT_NUM;
731: siz = sizeof(nintr);
732: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
733: warnx("could not read kern.intrcnt.nintrcnt");
734: return;
735: }
736:
1.91 deraadt 737: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 738:
1.74 art 739: inttotal = 0;
740: for (i = 0; i < nintr; i++) {
1.87 aaron 741: char name[128];
1.90 deraadt 742: u_quad_t cnt;
1.87 aaron 743: int vector;
1.74 art 744:
745: mib[0] = CTL_KERN;
746: mib[1] = KERN_INTRCNT;
747: mib[2] = KERN_INTRCNT_NAME;
748: mib[3] = i;
1.87 aaron 749: siz = sizeof(name);
750: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 751: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 752: return;
753: }
754:
755: mib[0] = CTL_KERN;
756: mib[1] = KERN_INTRCNT;
757: mib[2] = KERN_INTRCNT_VECTOR;
758: mib[3] = i;
759: siz = sizeof(vector);
760: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
761: strlcpy(intrname, name, sizeof(intrname));
762: } else {
763: snprintf(intrname, sizeof(intrname), "irq%d/%s",
764: vector, name);
1.74 art 765: }
766:
767: mib[0] = CTL_KERN;
768: mib[1] = KERN_INTRCNT;
769: mib[2] = KERN_INTRCNT_CNT;
770: mib[3] = i;
771: siz = sizeof(cnt);
772: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 773: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 774: return;
1.74 art 775: }
1.90 deraadt 776:
1.87 aaron 777: if (cnt || zflag)
1.91 deraadt 778: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 779: cnt, cnt / uptime);
1.74 art 780: inttotal += cnt;
781: }
782:
1.91 deraadt 783: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 784: inttotal / uptime);
1.1 deraadt 785: }
786:
787: /*
788: * These names are defined in <sys/malloc.h>.
789: */
1.101 otto 790: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 791:
792: void
1.72 deraadt 793: domem(void)
1.1 deraadt 794: {
1.102 deraadt 795: struct kmembuckets buckets[MINBUCKET + 16], *kp;
796: struct kmemstats kmemstats[M_LAST], *ks;
797: int i, j, len, size, first, mib[4];
1.50 art 798: u_long totuse = 0, totfree = 0;
1.102 deraadt 799: char buf[BUFSIZ], *bufp, *ap;
1.50 art 800: quad_t totreq = 0;
1.101 otto 801: const char *name;
1.50 art 802: size_t siz;
803:
804: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 805: mib[0] = CTL_KERN;
1.50 art 806: mib[1] = KERN_MALLOCSTATS;
807: mib[2] = KERN_MALLOC_BUCKETS;
808: siz = sizeof(buf);
809: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 810: warnx("could not read kern.malloc.buckets");
1.50 art 811: return;
812: }
813:
814: bufp = buf;
815: mib[2] = KERN_MALLOC_BUCKET;
816: siz = sizeof(struct kmembuckets);
817: i = 0;
818: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 819: mib[3] = atoi(ap);
1.50 art 820:
821: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 822: NULL, 0) < 0) {
1.56 angelos 823: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 824: return;
825: }
826: i++;
827: }
828: } else {
1.53 deraadt 829: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 830: }
1.1 deraadt 831:
1.18 kstailey 832: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
833: i++, kp++) {
1.65 art 834: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 835: continue;
1.18 kstailey 836: if (first) {
837: (void)printf("Memory statistics by bucket size\n");
838: (void)printf(
1.50 art 839: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 840: first = 0;
841: }
1.1 deraadt 842: size = 1 << i;
1.60 art 843: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
844: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
845: (unsigned long long)kp->kb_totalfree,
846: (unsigned long long)kp->kb_calls,
847: (unsigned long long)kp->kb_highwat,
848: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 849: totfree += size * kp->kb_totalfree;
1.18 kstailey 850: }
851:
852: /*
853: * If kmem statistics are not being gathered by the kernel,
854: * first will still be 1.
855: */
856: if (first) {
857: printf(
858: "Kmem statistics are not being gathered by the kernel.\n");
859: return;
1.1 deraadt 860: }
861:
1.52 angelos 862: if (memf == NULL && nlistf == NULL) {
863: bzero(kmemstats, sizeof(kmemstats));
864: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 865: mib[0] = CTL_KERN;
1.52 angelos 866: mib[1] = KERN_MALLOCSTATS;
867: mib[2] = KERN_MALLOC_KMEMSTATS;
868: mib[3] = i;
869: siz = sizeof(struct kmemstats);
870:
1.103 deraadt 871: /*
1.52 angelos 872: * Skip errors -- these are presumed to be unallocated
873: * entries.
874: */
875: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
876: continue;
877: }
878: } else {
879: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
880: }
881:
1.1 deraadt 882: (void)printf("\nMemory usage type by bucket size\n");
883: (void)printf(" Size Type(s)\n");
884: kp = &buckets[MINBUCKET];
885: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
886: if (kp->kb_calls == 0)
887: continue;
888: first = 1;
889: len = 8;
890: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
891: if (ks->ks_calls == 0)
892: continue;
893: if ((ks->ks_size & j) == 0)
894: continue;
895: name = kmemnames[i] ? kmemnames[i] : "undefined";
896: len += 2 + strlen(name);
897: if (first)
898: printf("%8d %s", j, name);
899: else
900: printf(",");
901: if (len >= 80) {
902: printf("\n\t ");
903: len = 10 + strlen(name);
904: }
905: if (!first)
906: printf(" %s", name);
907: first = 0;
908: }
909: printf("\n");
910: }
911:
912: (void)printf(
1.26 deraadt 913: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 914: (void)printf(
1.26 deraadt 915: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 916: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
917: if (ks->ks_calls == 0)
918: continue;
1.24 mickey 919: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 920: kmemnames[i] ? kmemnames[i] : "undefined",
921: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
922: (ks->ks_maxused + 1023) / 1024,
923: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
924: ks->ks_limblocks, ks->ks_mapblocks);
925: first = 1;
926: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
927: if ((ks->ks_size & j) == 0)
928: continue;
929: if (first)
930: printf(" %d", j);
931: else
932: printf(",%d", j);
933: first = 0;
934: }
935: printf("\n");
936: totuse += ks->ks_memuse;
937: totreq += ks->ks_calls;
938: }
939: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 940: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 941: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
942: }
943:
1.54 art 944: static void
945: print_pool(struct pool *pp, char *name)
946: {
947: static int first = 1;
1.102 deraadt 948: char maxp[32];
1.54 art 949: int ovflw;
950:
951: if (first) {
952: (void)printf("Memory resource pool statistics\n");
953: (void)printf(
954: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
955: "Name",
956: "Size",
957: "Requests",
958: "Fail",
959: "Releases",
960: "Pgreq",
961: "Pgrel",
962: "Npage",
963: "Hiwat",
964: "Minpg",
965: "Maxpg",
966: "Idle");
967: first = 0;
968: }
1.65 art 969:
970: /* Skip unused pools unless verbose output. */
971: if (pp->pr_nget == 0 && !verbose)
972: return;
973:
1.54 art 974: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 975: snprintf(maxp, sizeof maxp, "inf");
1.54 art 976: else
1.69 deraadt 977: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 978: /*
979: * Print single word. `ovflow' is number of characters didn't fit
980: * on the last word. `fmt' is a format string to print this word.
981: * It must contain asterisk for field width. `width' is a width
982: * occupied by this word. `fixed' is a number of constant chars in
983: * `fmt'. `val' is a value to be printed using format string `fmt'.
984: */
985: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
986: (ovflw) += printf((fmt), \
987: (width) - (fixed) - (ovflw) > 0 ? \
988: (width) - (fixed) - (ovflw) : 0, \
989: (val)) - (width); \
990: if ((ovflw) < 0) \
991: (ovflw) = 0; \
992: } while (/* CONSTCOND */0)
993:
994: ovflw = 0;
995: PRWORD(ovflw, "%-*s", 11, 0, name);
996: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
997: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
998: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
999: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nput);
1000: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
1001: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
1002: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
1003: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
1004: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
1005: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 1006: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 1007: }
1008:
1.55 art 1009: static void dopool_kvm(void);
1010: static void dopool_sysctl(void);
1011:
1.48 art 1012: void
1013: dopool(void)
1014: {
1.55 art 1015: if (nlistf == NULL && memf == NULL)
1016: dopool_sysctl();
1017: else
1018: dopool_kvm();
1019: }
1020:
1021: void
1022: dopool_sysctl(void)
1023: {
1.102 deraadt 1024: int mib[4], npools, i, kmfp;
1.63 art 1025: long total = 0, inuse = 0;
1.55 art 1026: struct pool pool;
1027: size_t size;
1028:
1029: mib[0] = CTL_KERN;
1030: mib[1] = KERN_POOL;
1031: mib[2] = KERN_POOL_NPOOLS;
1032: size = sizeof(npools);
1033: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 1034: warn("can't figure out number of pools in kernel");
1.55 art 1035: return;
1036: }
1037:
1038: for (i = 1; npools; i++) {
1039: char name[32];
1040:
1041: mib[0] = CTL_KERN;
1042: mib[1] = KERN_POOL;
1043: mib[2] = KERN_POOL_POOL;
1044: mib[3] = i;
1045: size = sizeof(struct pool);
1046: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
1047: if (errno == ENOENT)
1048: continue;
1.92 pedro 1049: warn("error getting pool");
1.55 art 1050: return;
1051: }
1052: npools--;
1053: mib[2] = KERN_POOL_NAME;
1054: size = sizeof(name);
1055: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1056: warn("error getting pool name");
1.55 art 1057: return;
1058: }
1059: print_pool(&pool, name);
1.63 art 1060:
1061: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1062: total += pool.pr_npages * getpagesize(); /* XXX */
1.55 art 1063: }
1.63 art 1064:
1065: inuse /= 1024;
1066: total /= 1024;
1.98 mickey 1067: if (!kreado(namelist2, &kmfp, sizeof(kmfp)))
1068: total += kmfp * (getpagesize() / 1024);
1.63 art 1069: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1070: inuse, total, (double)(100 * inuse) / total);
1.55 art 1071: }
1072:
1073: void
1074: dopool_kvm(void)
1075: {
1.48 art 1076: TAILQ_HEAD(,pool) pool_head;
1077: struct pool pool, *pp = &pool;
1.102 deraadt 1078: long total = 0, inuse = 0;
1079: u_long addr;
1.98 mickey 1080: int kmfp;
1.48 art 1081:
1082: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.102 deraadt 1083: addr = (u_long)TAILQ_FIRST(&pool_head);
1.48 art 1084:
1.55 art 1085: while (addr != 0) {
1.54 art 1086: char name[32];
1.56 angelos 1087:
1.48 art 1088: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1089: (void)fprintf(stderr,
1090: "vmstat: pool chain trashed: %s\n",
1091: kvm_geterr(kd));
1092: exit(1);
1093: }
1.102 deraadt 1094: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1095: (void)fprintf(stderr,
1096: "vmstat: pool name trashed: %s\n",
1097: kvm_geterr(kd));
1098: exit(1);
1099: }
1.56 angelos 1100:
1.48 art 1101: name[31] = '\0';
1102:
1.54 art 1103: print_pool(pp, name);
1.48 art 1104:
1105: inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
1.63 art 1106: total += pp->pr_npages * getpagesize(); /* XXX */
1.56 angelos 1107:
1.102 deraadt 1108: addr = (u_long)TAILQ_NEXT(pp, pr_poollist);
1.48 art 1109: }
1110:
1111: inuse /= 1024;
1112: total /= 1024;
1.98 mickey 1113: if (!kreado(namelist2, &kmfp, sizeof(kmfp)))
1114: total += kmfp * (getpagesize() / 1024);
1.48 art 1115: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1116: inuse, total, (double)(100 * inuse) / total);
1117: }
1118:
1.1 deraadt 1119: /*
1120: * kread reads something from the kernel, given its nlist index.
1121: */
1122: void
1.72 deraadt 1123: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1124: {
1125: char *sym;
1126:
1127: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1128: sym = namelist[nlx].n_name;
1129: if (*sym == '_')
1130: ++sym;
1.50 art 1131: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1132: }
1133: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1134: sym = namelist[nlx].n_name;
1135: if (*sym == '_')
1136: ++sym;
1.50 art 1137: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1138: }
1.98 mickey 1139: }
1140:
1141: /*
1.99 martin 1142: * kreado reads something from the kernel, given its nlist index.
1.98 mickey 1143: */
1144: int
1145: kreado(struct nlist *nl, void *addr, size_t size)
1146: {
1147: int c;
1148:
1149: if ((c = kvm_nlist(kd, nl)) != 0)
1150: return (c);
1151:
1152: if (nl->n_type == 0 || nl->n_value == 0)
1153: return (-1);
1154:
1155: if (kvm_read(kd, nl->n_value, addr, size) != size)
1156: return (-1);
1157:
1158: return (0);
1.1 deraadt 1159: }
1160:
1161: void
1.72 deraadt 1162: usage(void)
1.1 deraadt 1163: {
1.88 jmc 1164: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.50 art 1165: "[-N system] [-w wait] [disks]\n", __progname);
1.1 deraadt 1166: exit(1);
1167: }
![[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