Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.152
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.152 ! deraadt 2: /* $OpenBSD: vmstat.c,v 1.151 2021/07/12 15:09:20 beck 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:
1.136 deraadt 33: #include <sys/param.h> /* MAXCOMLEN */
1.1 deraadt 34: #include <sys/time.h>
1.152 ! deraadt 35: #include <sys/signal.h>
1.1 deraadt 36: #include <sys/proc.h>
37: #include <sys/namei.h>
38: #include <sys/malloc.h>
39: #include <sys/ioctl.h>
40: #include <sys/sysctl.h>
41: #include <sys/device.h>
1.48 art 42: #include <sys/pool.h>
1.133 miod 43: #include <sys/sched.h>
1.128 mpi 44: #include <sys/vmmeter.h>
45:
1.144 guenther 46: #include <ctype.h>
1.21 millert 47: #include <err.h>
1.1 deraadt 48: #include <errno.h>
1.144 guenther 49: #include <fcntl.h>
50: #include <kvm.h>
51: #include <limits.h>
52: #include <nlist.h>
53: #include <paths.h>
1.1 deraadt 54: #include <signal.h>
55: #include <stdio.h>
56: #include <stdlib.h>
57: #include <string.h>
1.144 guenther 58: #include <time.h>
59: #include <unistd.h>
60:
1.6 tholo 61: #include "dkstats.h"
1.29 art 62:
1.1 deraadt 63: struct nlist namelist[] = {
1.70 deraadt 64: #define X_UVMEXP 0 /* sysctl */
1.29 art 65: { "_uvmexp" },
1.124 guenther 66: #define X_TIME_UPTIME 1
67: { "_time_uptime" },
1.70 deraadt 68: #define X_NCHSTATS 2 /* sysctl */
1.1 deraadt 69: { "_nchstats" },
1.70 deraadt 70: #define X_KMEMSTAT 3 /* sysctl */
71: { "_kmemstats" },
72: #define X_KMEMBUCKETS 4 /* sysctl */
73: { "_bucket" },
74: #define X_FORKSTAT 5 /* sysctl */
75: { "_forkstat" },
76: #define X_NSELCOLL 6 /* sysctl */
77: { "_nselcoll" },
78: #define X_POOLHEAD 7 /* sysctl */
79: { "_pool_head" },
1.124 guenther 80: #define X_NAPTIME 8
81: { "_naptime" },
1.1 deraadt 82: { "" },
83: };
84:
1.6 tholo 85: /* Objects defined in dkstats.c */
1.73 tdeval 86: extern struct _disk cur, last;
1.10 deraadt 87: extern char **dr_name;
88: extern int *dk_select, dk_ndrive;
1.1 deraadt 89:
1.29 art 90: struct uvmexp uvmexp, ouvmexp;
1.6 tholo 91: int ndrives;
1.1 deraadt 92:
93: int winlines = 20;
94:
95: kvm_t *kd;
96:
97: #define FORKSTAT 0x01
98: #define INTRSTAT 0x02
99: #define MEMSTAT 0x04
100: #define SUMSTAT 0x08
101: #define TIMESTAT 0x10
102: #define VMSTAT 0x20
103:
1.66 millert 104: void cpustats(void);
1.101 otto 105: time_t getuptime(void);
1.66 millert 106: void dkstats(void);
107: void dointr(void);
108: void domem(void);
109: void dopool(void);
110: void dosum(void);
111: void dovmstat(u_int, int);
112: void kread(int, void *, size_t);
113: void usage(void);
114: void dotimes(void);
115: void doforkst(void);
1.101 otto 116: void needhdr(int);
1.112 naddy 117: int pct(int64_t, int64_t);
1.66 millert 118: void printhdr(void);
1.1 deraadt 119:
1.66 millert 120: char **choosedrives(char **);
1.10 deraadt 121:
122: /* Namelist and memory file names. */
123: char *nlistf, *memf;
1.6 tholo 124:
1.50 art 125: extern char *__progname;
126:
1.65 art 127: int verbose = 0;
1.87 aaron 128: int zflag = 0;
1.65 art 129:
1.21 millert 130: int
1.72 deraadt 131: main(int argc, char *argv[])
1.1 deraadt 132: {
1.102 deraadt 133: char errbuf[_POSIX2_LINE_MAX];
1.126 chl 134: int c, todo = 0, reps = 0;
1.149 deraadt 135: struct winsize winsize;
1.102 deraadt 136: const char *errstr;
137: u_int interval = 0;
1.1 deraadt 138:
1.87 aaron 139: while ((c = getopt(argc, argv, "c:fiM:mN:stw:vz")) != -1) {
1.1 deraadt 140: switch (c) {
141: case 'c':
1.137 tedu 142: reps = strtonum(optarg, 0, INT_MAX, &errstr);
143: if (errstr)
144: errx(1, "-c %s: %s", optarg, errstr);
1.1 deraadt 145: break;
146: case 'f':
147: todo |= FORKSTAT;
148: break;
149: case 'i':
150: todo |= INTRSTAT;
151: break;
152: case 'M':
153: memf = optarg;
154: break;
155: case 'm':
156: todo |= MEMSTAT;
157: break;
158: case 'N':
159: nlistf = optarg;
160: break;
161: case 's':
162: todo |= SUMSTAT;
163: break;
164: case 't':
165: todo |= TIMESTAT;
166: break;
167: case 'w':
1.102 deraadt 168: interval = (u_int)strtonum(optarg, 0, 1000, &errstr);
169: if (errstr)
1.104 pedro 170: errx(1, "-w %s: %s", optarg, errstr);
1.1 deraadt 171: break;
1.65 art 172: case 'v':
173: verbose = 1;
174: break;
1.87 aaron 175: case 'z':
176: zflag = 1;
177: break;
1.1 deraadt 178: case '?':
179: default:
180: usage();
181: }
182: }
183: argc -= optind;
184: argv += optind;
185:
186: if (todo == 0)
187: todo = VMSTAT;
188:
1.56 angelos 189: if (nlistf != NULL || memf != NULL) {
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: if (c > 0) {
196: (void)fprintf(stderr,
197: "%s: undefined symbols:", __progname);
198: for (c = 0;
199: c < sizeof(namelist)/sizeof(namelist[0]);
200: c++)
201: if (namelist[c].n_type == 0)
202: fprintf(stderr, " %s",
203: namelist[c].n_name);
204: (void)fputc('\n', stderr);
205: exit(1);
206: } else
207: errx(1, "kvm_nlist: %s", kvm_geterr(kd));
208: }
1.115 lum 209: }
1.1 deraadt 210:
211: if (todo & VMSTAT) {
1.6 tholo 212: dkinit(0); /* Initialize disk stats, no disks selected. */
213: argv = choosedrives(argv); /* Select disks. */
1.149 deraadt 214: }
1.1 deraadt 215:
1.149 deraadt 216: if (unveil("/", "") == -1)
1.151 beck 217: err(1, "unveil /");
1.149 deraadt 218: if (unveil(NULL, NULL) == -1)
219: err(1, "unveil");
220:
221: winsize.ws_row = 0;
222: if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize) == 0) {
223: if (winsize.ws_row > 0)
224: winlines = winsize.ws_row;
1.1 deraadt 225: }
1.25 deraadt 226:
1.1 deraadt 227: #define BACKWARD_COMPATIBILITY
228: #ifdef BACKWARD_COMPATIBILITY
229: if (*argv) {
1.102 deraadt 230: interval = (u_int)strtonum(*argv, 0, 1000, &errstr);
231: if (errstr)
1.137 tedu 232: errx(1, "interval %s: %s", *argv, errstr);
1.103 deraadt 233:
1.137 tedu 234: if (*++argv) {
235: reps = strtonum(*argv, 0, INT_MAX, &errstr);
236: if (errstr)
237: errx(1, "reps %s: %s", *argv, errstr);
238: }
1.1 deraadt 239: }
240: #endif
241:
242: if (interval) {
243: if (!reps)
244: reps = -1;
245: } else if (reps)
246: interval = 1;
247:
248: if (todo & FORKSTAT)
249: doforkst();
1.48 art 250: if (todo & MEMSTAT) {
1.1 deraadt 251: domem();
1.48 art 252: dopool();
253: }
1.1 deraadt 254: if (todo & SUMSTAT)
255: dosum();
256: if (todo & TIMESTAT)
257: dotimes();
258: if (todo & INTRSTAT)
259: dointr();
260: if (todo & VMSTAT)
261: dovmstat(interval, reps);
262: exit(0);
263: }
264:
265: char **
1.72 deraadt 266: choosedrives(char **argv)
1.1 deraadt 267: {
1.62 mpech 268: int i;
1.1 deraadt 269:
270: /*
271: * Choose drives to be displayed. Priority goes to (in order) drives
272: * supplied as arguments, default drives. If everything isn't filled
273: * in and there are drives not taken care of, display the first few
274: * that fit.
275: */
276: #define BACKWARD_COMPATIBILITY
277: for (ndrives = 0; *argv; ++argv) {
278: #ifdef BACKWARD_COMPATIBILITY
1.127 deraadt 279: if (isdigit((unsigned char)**argv))
1.1 deraadt 280: break;
281: #endif
282: for (i = 0; i < dk_ndrive; i++) {
283: if (strcmp(dr_name[i], *argv))
284: continue;
1.6 tholo 285: dk_select[i] = 1;
1.1 deraadt 286: ++ndrives;
287: break;
288: }
1.137 tedu 289: if (i == dk_ndrive)
290: errx(1, "invalid interval or drive name: %s", *argv);
1.1 deraadt 291: }
1.64 deraadt 292: for (i = 0; i < dk_ndrive && ndrives < 2; i++) {
1.6 tholo 293: if (dk_select[i])
1.1 deraadt 294: continue;
1.6 tholo 295: dk_select[i] = 1;
1.1 deraadt 296: ++ndrives;
297: }
298: return(argv);
299: }
300:
1.19 deraadt 301: time_t
1.72 deraadt 302: getuptime(void)
1.1 deraadt 303: {
1.124 guenther 304: struct timespec uptime;
305: time_t time_uptime, naptime;
1.1 deraadt 306:
1.124 guenther 307: if (nlistf == NULL && memf == NULL) {
308: if (clock_gettime(CLOCK_UPTIME, &uptime) == -1)
309: err(1, "clock_gettime");
310: return (uptime.tv_sec);
1.50 art 311: }
312:
1.124 guenther 313: kread(X_NAPTIME, &naptime, sizeof(naptime));
314: kread(X_TIME_UPTIME, &time_uptime, sizeof(time_uptime));
315: return (time_uptime - naptime);
1.1 deraadt 316: }
317:
1.105 cloder 318: int hz;
319: volatile sig_atomic_t hdrcnt;
1.1 deraadt 320:
321: void
1.72 deraadt 322: dovmstat(u_int interval, int reps)
1.1 deraadt 323: {
324: time_t uptime, halfuptime;
1.50 art 325: struct clockinfo clkinfo;
1.102 deraadt 326: struct vmtotal total;
1.1 deraadt 327: size_t size;
1.102 deraadt 328: int mib[2];
1.1 deraadt 329:
330: uptime = getuptime();
331: halfuptime = uptime / 2;
332: (void)signal(SIGCONT, needhdr);
333:
1.50 art 334: mib[0] = CTL_KERN;
335: mib[1] = KERN_CLOCKRATE;
336: size = sizeof(clkinfo);
1.146 deraadt 337: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) == -1) {
1.56 angelos 338: warn("could not read kern.clockrate");
1.50 art 339: return;
340: }
341: hz = clkinfo.stathz;
1.1 deraadt 342:
343: for (hdrcnt = 1;;) {
1.6 tholo 344: /* Read new disk statistics */
345: dkreadstats();
1.73 tdeval 346: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
347: printhdr();
1.56 angelos 348: if (nlistf == NULL && memf == NULL) {
349: size = sizeof(struct uvmexp);
1.52 angelos 350: mib[0] = CTL_VM;
351: mib[1] = VM_UVMEXP;
1.146 deraadt 352: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) == -1) {
1.56 angelos 353: warn("could not get vm.uvmexp");
1.139 mmcc 354: memset(&uvmexp, 0, sizeof(struct uvmexp));
1.52 angelos 355: }
1.56 angelos 356: } else {
357: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 358: }
1.1 deraadt 359: size = sizeof(total);
360: mib[0] = CTL_VM;
361: mib[1] = VM_METER;
1.146 deraadt 362: if (sysctl(mib, 2, &total, &size, NULL, 0) == -1) {
1.56 angelos 363: warn("could not read vm.vmmeter");
1.139 mmcc 364: memset(&total, 0, sizeof(total));
1.1 deraadt 365: }
1.142 mpi 366: (void)printf("%2u %3u", total.t_rq - 1, total.t_sl);
1.123 guenther 367: #define rate(x) ((unsigned)((((unsigned)x) + halfuptime) / uptime)) /* round */
1.102 deraadt 368: #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10))
1.142 mpi 369: (void)printf("%5uM %6uM ",
370: pgtok(uvmexp.active + uvmexp.swpginuse) / 1024,
371: pgtok(uvmexp.free) / 1024);
1.106 sobrado 372: (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 373: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
374: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
375: (void)printf("%3u %3u ",
376: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
377: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
378: dkstats();
1.64 deraadt 379: (void)printf("%4u %5u %4u ",
1.29 art 380: rate(uvmexp.intrs - ouvmexp.intrs),
381: rate(uvmexp.syscalls - ouvmexp.syscalls),
382: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 383: cpustats();
384: (void)printf("\n");
385: (void)fflush(stdout);
386: if (reps >= 0 && --reps <= 0)
387: break;
1.29 art 388: ouvmexp = uvmexp;
1.1 deraadt 389: uptime = interval;
390: /*
391: * We round upward to avoid losing low-frequency events
392: * (i.e., >= 1 per interval but < 1 per second).
393: */
1.14 deraadt 394: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 395: (void)sleep(interval);
396: }
397: }
398:
1.21 millert 399: void
1.72 deraadt 400: printhdr(void)
1.1 deraadt 401: {
1.62 mpech 402: int i;
1.114 tedu 403: static int printedhdr;
404:
405: if (printedhdr && !isatty(STDOUT_FILENO))
406: return;
1.1 deraadt 407:
1.108 sobrado 408: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 409: if (ndrives > 0)
1.106 sobrado 410: (void)printf("%s %*straps cpu\n",
1.6 tholo 411: ((ndrives > 1) ? "disks" : "disk"),
1.106 sobrado 412: ((ndrives > 1) ? ndrives * 4 - 5 : 0), "");
1.1 deraadt 413: else
1.106 sobrado 414: (void)printf("%*s traps cpu\n",
1.6 tholo 415: ndrives * 3, "");
416:
1.142 mpi 417: (void)printf(" r s avm fre flt re pi po fr sr ");
1.1 deraadt 418: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 419: if (dk_select[i])
1.67 ho 420: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 421: dr_name[i][1],
1.1 deraadt 422: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 423: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 424: hdrcnt = winlines - 2;
1.114 tedu 425: printedhdr = 1;
1.1 deraadt 426: }
427:
428: /*
429: * Force a header to be prepended to the next output.
430: */
431: void
1.141 guenther 432: needhdr(__unused int signo)
1.1 deraadt 433: {
434:
435: hdrcnt = 1;
436: }
437:
438: void
1.72 deraadt 439: dotimes(void)
1.1 deraadt 440: {
441: u_int pgintime, rectime;
1.102 deraadt 442: size_t size;
1.52 angelos 443: int mib[2];
1.1 deraadt 444:
1.56 angelos 445: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 446: pgintime = 0;
447: rectime = 0;
1.56 angelos 448:
449: if (nlistf == NULL && memf == NULL) {
450: size = sizeof(struct uvmexp);
1.52 angelos 451: mib[0] = CTL_VM;
452: mib[1] = VM_UVMEXP;
1.146 deraadt 453: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) == -1) {
1.56 angelos 454: warn("could not read vm.uvmexp");
1.139 mmcc 455: memset(&uvmexp, 0, sizeof(struct uvmexp));
1.52 angelos 456: }
1.56 angelos 457: } else {
458: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 459: }
460:
1.29 art 461: (void)printf("%u reactivates, %u total time (usec)\n",
462: uvmexp.pdreact, rectime);
1.89 miod 463: if (uvmexp.pdreact != 0)
464: (void)printf("average: %u usec / reclaim\n",
465: rectime / uvmexp.pdreact);
1.29 art 466: (void)printf("\n");
467: (void)printf("%u page ins, %u total time (msec)\n",
468: uvmexp.pageins, pgintime / 10);
1.89 miod 469: if (uvmexp.pageins != 0)
470: (void)printf("average: %8.1f msec / page in\n",
1.103 deraadt 471: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 472: }
473:
1.21 millert 474: int
1.112 naddy 475: pct(int64_t top, int64_t bot)
1.1 deraadt 476: {
1.102 deraadt 477: int ans;
1.1 deraadt 478:
479: if (bot == 0)
480: return(0);
1.112 naddy 481: ans = top * 100 / bot;
1.1 deraadt 482: return (ans);
483: }
484:
485: void
1.72 deraadt 486: dosum(void)
1.1 deraadt 487: {
488: struct nchstats nchstats;
1.102 deraadt 489: int mib[2], nselcoll;
1.112 naddy 490: long long nchtotal;
1.52 angelos 491: size_t size;
1.1 deraadt 492:
1.56 angelos 493: if (nlistf == NULL && memf == NULL) {
494: size = sizeof(struct uvmexp);
1.52 angelos 495: mib[0] = CTL_VM;
496: mib[1] = VM_UVMEXP;
1.146 deraadt 497: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) == -1) {
1.56 angelos 498: warn("could not read vm.uvmexp");
1.139 mmcc 499: memset(&uvmexp, 0, 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:
1.32 art 505: /* vm_page constants */
1.35 hugh 506: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 507:
508: /* vm_page counters */
1.35 hugh 509: (void)printf("%11u pages managed\n", uvmexp.npages);
510: (void)printf("%11u pages free\n", uvmexp.free);
511: (void)printf("%11u pages active\n", uvmexp.active);
512: (void)printf("%11u pages inactive\n", uvmexp.inactive);
513: (void)printf("%11u pages being paged out\n", uvmexp.paging);
514: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 515: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 516: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 517: uvmexp.reserve_pagedaemon);
1.35 hugh 518: (void)printf("%11u pages reserved for kernel\n",
1.48 art 519: uvmexp.reserve_kernel);
1.32 art 520:
521: /* swap */
1.35 hugh 522: (void)printf("%11u swap pages\n", uvmexp.swpages);
523: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
1.32 art 524:
525: /* stat counters */
1.35 hugh 526: (void)printf("%11u page faults\n", uvmexp.faults);
527: (void)printf("%11u traps\n", uvmexp.traps);
528: (void)printf("%11u interrupts\n", uvmexp.intrs);
529: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
1.95 mickey 530: (void)printf("%11u fpu context switches\n", uvmexp.fpswtch);
1.35 hugh 531: (void)printf("%11u software interrupts\n", uvmexp.softs);
532: (void)printf("%11u syscalls\n", uvmexp.syscalls);
533: (void)printf("%11u pagein operations\n", uvmexp.pageins);
534: (void)printf("%11u forks\n", uvmexp.forks);
535: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 536: uvmexp.forks_sharevm);
1.97 pedro 537: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.132 kettenis 538: (void)printf("%11u zeroed page hits\n", uvmexp.pga_zerohit);
539: (void)printf("%11u zeroed page misses\n", uvmexp.pga_zeromiss);
1.32 art 540:
541: /* daemon counters */
1.64 deraadt 542: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 543: uvmexp.pdwoke);
1.35 hugh 544: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
545: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
546: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
547: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
548: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 549:
1.56 angelos 550: if (nlistf == NULL && memf == NULL) {
1.52 angelos 551: size = sizeof(nchstats);
552: mib[0] = CTL_KERN;
553: mib[1] = KERN_NCHSTATS;
1.146 deraadt 554: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) == -1) {
1.56 angelos 555: warn("could not read kern.nchstats");
1.139 mmcc 556: memset(&nchstats, 0, sizeof(nchstats));
1.52 angelos 557: }
1.56 angelos 558: } else {
559: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 560: }
561:
1.1 deraadt 562: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
563: nchstats.ncs_badhits + nchstats.ncs_falsehits +
564: nchstats.ncs_miss + nchstats.ncs_long;
1.112 naddy 565: (void)printf("%11lld total name lookups\n", nchtotal);
1.52 angelos 566: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
567: "per-directory\n",
1.112 naddy 568: "", pct(nchstats.ncs_goodhits, nchtotal),
569: pct(nchstats.ncs_neghits, nchtotal),
570: pct(nchstats.ncs_pass2, nchtotal));
1.35 hugh 571: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.112 naddy 572: pct(nchstats.ncs_badhits, nchtotal),
573: pct(nchstats.ncs_falsehits, nchtotal),
574: pct(nchstats.ncs_long, nchtotal));
1.52 angelos 575:
1.56 angelos 576: if (nlistf == NULL && memf == NULL) {
1.52 angelos 577: size = sizeof(nselcoll);
578: mib[0] = CTL_KERN;
579: mib[1] = KERN_NSELCOLL;
1.146 deraadt 580: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) == -1) {
1.56 angelos 581: warn("could not read kern.nselcoll");
1.52 angelos 582: nselcoll = 0;
583: }
1.56 angelos 584: } else {
585: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 586: }
1.50 art 587: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 588: }
589:
590: void
1.72 deraadt 591: doforkst(void)
1.1 deraadt 592: {
593: struct forkstat fks;
1.52 angelos 594: size_t size;
595: int mib[2];
596:
1.56 angelos 597: if (nlistf == NULL && memf == NULL) {
1.52 angelos 598: size = sizeof(struct forkstat);
599: mib[0] = CTL_KERN;
600: mib[1] = KERN_FORKSTAT;
1.146 deraadt 601: if (sysctl(mib, 2, &fks, &size, NULL, 0) == -1) {
1.56 angelos 602: warn("could not read kern.forkstat");
1.139 mmcc 603: memset(&fks, 0, sizeof(struct forkstat));
1.52 angelos 604: }
1.56 angelos 605: } else {
606: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 607: }
1.1 deraadt 608:
1.140 tedu 609: (void)printf("%u forks, %llu pages, average %.2f\n",
1.1 deraadt 610: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
1.140 tedu 611: (void)printf("%u vforks, %llu pages, average %.2f\n",
1.72 deraadt 612: fks.cntvfork, fks.sizvfork,
613: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.140 tedu 614: (void)printf("%u __tforks, %llu pages, average %.2f\n",
1.119 deraadt 615: fks.cnttfork, fks.siztfork,
616: (double)fks.siztfork / (fks.cnttfork ? fks.cnttfork : 1));
1.140 tedu 617: (void)printf("%u kthread creations, %llu pages, average %.2f\n",
1.72 deraadt 618: fks.cntkthread, fks.sizkthread,
619: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 620: }
621:
622: void
1.72 deraadt 623: dkstats(void)
1.1 deraadt 624: {
1.62 mpech 625: int dn, state;
1.1 deraadt 626: double etime;
627:
1.6 tholo 628: /* Calculate disk stat deltas. */
629: dkswap();
1.1 deraadt 630: etime = 0;
631: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 632: etime += cur.cp_time[state];
1.1 deraadt 633: }
634: if (etime == 0)
635: etime = 1;
636: etime /= hz;
637: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 638: if (!dk_select[dn])
1.1 deraadt 639: continue;
1.82 tedu 640: (void)printf("%3.0f ",
641: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 642: }
643: }
644:
645: void
1.72 deraadt 646: cpustats(void)
1.1 deraadt 647: {
1.102 deraadt 648: double percent, total;
1.62 mpech 649: int state;
1.1 deraadt 650:
651: total = 0;
652: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 653: total += cur.cp_time[state];
1.1 deraadt 654: if (total)
1.101 otto 655: percent = 100 / total;
1.1 deraadt 656: else
1.101 otto 657: percent = 0;
658: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
1.147 claudio 659: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_SPIN] + cur.cp_time[CP_INTR]) * percent);
1.101 otto 660: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 661: }
662:
663: void
1.72 deraadt 664: dointr(void)
1.74 art 665: {
1.102 deraadt 666: int nintr, mib[4], i;
667: char intrname[128];
668: u_int64_t inttotal;
1.74 art 669: time_t uptime;
670: size_t siz;
671:
1.93 miod 672: if (nlistf != NULL || memf != NULL) {
673: errx(1,
674: "interrupt statistics are only available on live kernels");
675: }
676:
1.74 art 677: uptime = getuptime();
678:
679: mib[0] = CTL_KERN;
680: mib[1] = KERN_INTRCNT;
681: mib[2] = KERN_INTRCNT_NUM;
682: siz = sizeof(nintr);
1.146 deraadt 683: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) == -1) {
1.74 art 684: warnx("could not read kern.intrcnt.nintrcnt");
685: return;
686: }
687:
1.91 deraadt 688: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 689:
1.74 art 690: inttotal = 0;
691: for (i = 0; i < nintr; i++) {
1.87 aaron 692: char name[128];
1.141 guenther 693: uint64_t cnt;
1.87 aaron 694: int vector;
1.74 art 695:
696: mib[0] = CTL_KERN;
697: mib[1] = KERN_INTRCNT;
698: mib[2] = KERN_INTRCNT_NAME;
699: mib[3] = i;
1.87 aaron 700: siz = sizeof(name);
1.146 deraadt 701: if (sysctl(mib, 4, name, &siz, NULL, 0) == -1) {
1.74 art 702: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 703: return;
704: }
705:
706: mib[0] = CTL_KERN;
707: mib[1] = KERN_INTRCNT;
708: mib[2] = KERN_INTRCNT_VECTOR;
709: mib[3] = i;
710: siz = sizeof(vector);
1.146 deraadt 711: if (sysctl(mib, 4, &vector, &siz, NULL, 0) == -1) {
1.87 aaron 712: strlcpy(intrname, name, sizeof(intrname));
713: } else {
714: snprintf(intrname, sizeof(intrname), "irq%d/%s",
715: vector, name);
1.74 art 716: }
717:
718: mib[0] = CTL_KERN;
719: mib[1] = KERN_INTRCNT;
720: mib[2] = KERN_INTRCNT_CNT;
721: mib[3] = i;
722: siz = sizeof(cnt);
1.146 deraadt 723: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) == -1) {
1.75 grange 724: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 725: return;
1.74 art 726: }
1.90 deraadt 727:
1.87 aaron 728: if (cnt || zflag)
1.91 deraadt 729: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 730: cnt, cnt / uptime);
1.74 art 731: inttotal += cnt;
732: }
733:
1.91 deraadt 734: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 735: inttotal / uptime);
1.1 deraadt 736: }
737:
738: /*
739: * These names are defined in <sys/malloc.h>.
740: */
1.101 otto 741: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 742:
743: void
1.72 deraadt 744: domem(void)
1.1 deraadt 745: {
1.102 deraadt 746: struct kmembuckets buckets[MINBUCKET + 16], *kp;
747: struct kmemstats kmemstats[M_LAST], *ks;
748: int i, j, len, size, first, mib[4];
1.50 art 749: u_long totuse = 0, totfree = 0;
1.102 deraadt 750: char buf[BUFSIZ], *bufp, *ap;
1.141 guenther 751: unsigned long long totreq = 0;
1.101 otto 752: const char *name;
1.50 art 753: size_t siz;
754:
755: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 756: mib[0] = CTL_KERN;
1.50 art 757: mib[1] = KERN_MALLOCSTATS;
758: mib[2] = KERN_MALLOC_BUCKETS;
759: siz = sizeof(buf);
1.146 deraadt 760: if (sysctl(mib, 3, buf, &siz, NULL, 0) == -1) {
1.56 angelos 761: warnx("could not read kern.malloc.buckets");
1.50 art 762: return;
763: }
764:
765: bufp = buf;
766: mib[2] = KERN_MALLOC_BUCKET;
767: siz = sizeof(struct kmembuckets);
768: i = 0;
769: while ((ap = strsep(&bufp, ",")) != NULL) {
1.138 deraadt 770: const char *errstr;
771:
772: mib[3] = strtonum(ap, 0, INT_MAX, &errstr);
773: if (errstr) {
774: warnx("kernel lied about %d being a number", mib[3]);
775: return;
776: }
1.50 art 777:
778: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.146 deraadt 779: NULL, 0) == -1) {
1.56 angelos 780: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 781: return;
782: }
783: i++;
784: }
785: } else {
1.53 deraadt 786: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 787: }
1.1 deraadt 788:
1.18 kstailey 789: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
790: i++, kp++) {
1.65 art 791: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 792: continue;
1.18 kstailey 793: if (first) {
794: (void)printf("Memory statistics by bucket size\n");
795: (void)printf(
1.50 art 796: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 797: first = 0;
798: }
1.1 deraadt 799: size = 1 << i;
1.60 art 800: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
1.148 deraadt 801: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
802: (unsigned long long)kp->kb_totalfree,
803: (unsigned long long)kp->kb_calls,
804: (unsigned long long)kp->kb_highwat,
805: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 806: totfree += size * kp->kb_totalfree;
1.18 kstailey 807: }
808:
809: /*
810: * If kmem statistics are not being gathered by the kernel,
811: * first will still be 1.
812: */
813: if (first) {
814: printf(
815: "Kmem statistics are not being gathered by the kernel.\n");
816: return;
1.1 deraadt 817: }
818:
1.52 angelos 819: if (memf == NULL && nlistf == NULL) {
1.139 mmcc 820: memset(kmemstats, 0, sizeof(kmemstats));
1.52 angelos 821: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 822: mib[0] = CTL_KERN;
1.52 angelos 823: mib[1] = KERN_MALLOCSTATS;
824: mib[2] = KERN_MALLOC_KMEMSTATS;
825: mib[3] = i;
826: siz = sizeof(struct kmemstats);
827:
1.103 deraadt 828: /*
1.52 angelos 829: * Skip errors -- these are presumed to be unallocated
830: * entries.
831: */
1.146 deraadt 832: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) == -1)
1.52 angelos 833: continue;
834: }
835: } else {
836: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
837: }
838:
1.1 deraadt 839: (void)printf("\nMemory usage type by bucket size\n");
840: (void)printf(" Size Type(s)\n");
841: kp = &buckets[MINBUCKET];
842: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
843: if (kp->kb_calls == 0)
844: continue;
845: first = 1;
846: len = 8;
847: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
848: if (ks->ks_calls == 0)
849: continue;
850: if ((ks->ks_size & j) == 0)
851: continue;
852: name = kmemnames[i] ? kmemnames[i] : "undefined";
853: len += 2 + strlen(name);
854: if (first)
855: printf("%8d %s", j, name);
856: else
857: printf(",");
858: if (len >= 80) {
859: printf("\n\t ");
860: len = 10 + strlen(name);
861: }
862: if (!first)
863: printf(" %s", name);
864: first = 0;
865: }
866: printf("\n");
867: }
868:
869: (void)printf(
1.26 deraadt 870: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 871: (void)printf(
1.150 guenther 872: " Type InUse MemUse HighUse Limit Requests Limit Size(s)\n");
1.1 deraadt 873: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
874: if (ks->ks_calls == 0)
875: continue;
1.150 guenther 876: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u",
1.1 deraadt 877: kmemnames[i] ? kmemnames[i] : "undefined",
878: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
879: (ks->ks_maxused + 1023) / 1024,
880: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
1.150 guenther 881: ks->ks_limblocks);
1.1 deraadt 882: first = 1;
883: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
884: if ((ks->ks_size & j) == 0)
885: continue;
886: if (first)
887: printf(" %d", j);
888: else
889: printf(",%d", j);
890: first = 0;
891: }
892: printf("\n");
893: totuse += ks->ks_memuse;
894: totreq += ks->ks_calls;
895: }
896: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.141 guenther 897: (void)printf(" %7luK %6luK %8llu\n",
1.1 deraadt 898: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
899: }
900:
1.54 art 901: static void
1.129 dlg 902: print_pool(struct kinfo_pool *pp, char *name)
1.54 art 903: {
904: static int first = 1;
1.102 deraadt 905: char maxp[32];
1.54 art 906: int ovflw;
907:
908: if (first) {
909: (void)printf("Memory resource pool statistics\n");
910: (void)printf(
911: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
912: "Name",
913: "Size",
914: "Requests",
915: "Fail",
1.110 otto 916: "InUse",
1.54 art 917: "Pgreq",
918: "Pgrel",
919: "Npage",
920: "Hiwat",
921: "Minpg",
922: "Maxpg",
923: "Idle");
924: first = 0;
925: }
1.65 art 926:
927: /* Skip unused pools unless verbose output. */
928: if (pp->pr_nget == 0 && !verbose)
929: return;
930:
1.54 art 931: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 932: snprintf(maxp, sizeof maxp, "inf");
1.54 art 933: else
1.69 deraadt 934: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 935: /*
936: * Print single word. `ovflow' is number of characters didn't fit
937: * on the last word. `fmt' is a format string to print this word.
938: * It must contain asterisk for field width. `width' is a width
939: * occupied by this word. `fixed' is a number of constant chars in
940: * `fmt'. `val' is a value to be printed using format string `fmt'.
941: */
942: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
943: (ovflw) += printf((fmt), \
944: (width) - (fixed) - (ovflw) > 0 ? \
945: (width) - (fixed) - (ovflw) : 0, \
946: (val)) - (width); \
947: if ((ovflw) < 0) \
948: (ovflw) = 0; \
949: } while (/* CONSTCOND */0)
950:
951: ovflw = 0;
952: PRWORD(ovflw, "%-*s", 11, 0, name);
953: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
954: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
955: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
1.110 otto 956: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput);
1.54 art 957: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
958: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
959: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
960: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
961: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
962: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 963: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 964: }
965:
1.55 art 966: static void dopool_kvm(void);
967: static void dopool_sysctl(void);
968:
1.48 art 969: void
970: dopool(void)
971: {
1.55 art 972: if (nlistf == NULL && memf == NULL)
973: dopool_sysctl();
974: else
975: dopool_kvm();
976: }
977:
978: void
979: dopool_sysctl(void)
980: {
1.117 chl 981: int mib[4], npools, i;
1.63 art 982: long total = 0, inuse = 0;
1.129 dlg 983: struct kinfo_pool pool;
1.55 art 984: size_t size;
985:
986: mib[0] = CTL_KERN;
987: mib[1] = KERN_POOL;
988: mib[2] = KERN_POOL_NPOOLS;
989: size = sizeof(npools);
1.146 deraadt 990: if (sysctl(mib, 3, &npools, &size, NULL, 0) == -1) {
1.92 pedro 991: warn("can't figure out number of pools in kernel");
1.55 art 992: return;
993: }
994:
995: for (i = 1; npools; i++) {
996: char name[32];
997:
998: mib[0] = CTL_KERN;
999: mib[1] = KERN_POOL;
1000: mib[2] = KERN_POOL_POOL;
1001: mib[3] = i;
1.129 dlg 1002: size = sizeof(pool);
1.146 deraadt 1003: if (sysctl(mib, 4, &pool, &size, NULL, 0) == -1) {
1.55 art 1004: if (errno == ENOENT)
1005: continue;
1.92 pedro 1006: warn("error getting pool");
1.55 art 1007: return;
1008: }
1009: npools--;
1010: mib[2] = KERN_POOL_NAME;
1011: size = sizeof(name);
1.146 deraadt 1012: if (sysctl(mib, 4, &name, &size, NULL, 0) == -1) {
1.92 pedro 1013: warn("error getting pool name");
1.55 art 1014: return;
1015: }
1016: print_pool(&pool, name);
1.63 art 1017:
1018: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1.129 dlg 1019: total += pool.pr_npages * pool.pr_pgsize;
1.55 art 1020: }
1.63 art 1021:
1022: inuse /= 1024;
1023: total /= 1024;
1024: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1025: inuse, total, (double)(100 * inuse) / total);
1.55 art 1026: }
1027:
1028: void
1029: dopool_kvm(void)
1030: {
1.120 tedu 1031: SIMPLEQ_HEAD(,pool) pool_head;
1.48 art 1032: struct pool pool, *pp = &pool;
1.129 dlg 1033: struct kinfo_pool pi;
1.102 deraadt 1034: long total = 0, inuse = 0;
1035: u_long addr;
1.48 art 1036:
1037: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.120 tedu 1038: addr = (u_long)SIMPLEQ_FIRST(&pool_head);
1.48 art 1039:
1.55 art 1040: while (addr != 0) {
1.54 art 1041: char name[32];
1.56 angelos 1042:
1.48 art 1043: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1044: (void)fprintf(stderr,
1045: "vmstat: pool chain trashed: %s\n",
1046: kvm_geterr(kd));
1047: exit(1);
1048: }
1.102 deraadt 1049: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1050: (void)fprintf(stderr,
1051: "vmstat: pool name trashed: %s\n",
1052: kvm_geterr(kd));
1053: exit(1);
1054: }
1055: name[31] = '\0';
1056:
1.129 dlg 1057: memset(&pi, 0, sizeof(pi));
1058: pi.pr_size = pp->pr_size;
1.135 tedu 1059: pi.pr_pgsize = pp->pr_pgsize;
1.129 dlg 1060: pi.pr_itemsperpage = pp->pr_itemsperpage;
1.130 dlg 1061: pi.pr_npages = pp->pr_npages;
1.129 dlg 1062: pi.pr_minpages = pp->pr_minpages;
1063: pi.pr_maxpages = pp->pr_maxpages;
1064: pi.pr_hardlimit = pp->pr_hardlimit;
1065: pi.pr_nout = pp->pr_nout;
1066: pi.pr_nitems = pp->pr_nitems;
1067: pi.pr_nget = pp->pr_nget;
1068: pi.pr_nput = pp->pr_nput;
1069: pi.pr_nfail = pp->pr_nfail;
1070: pi.pr_npagealloc = pp->pr_npagealloc;
1071: pi.pr_npagefree = pp->pr_npagefree;
1072: pi.pr_hiwat = pp->pr_hiwat;
1073: pi.pr_nidle = pp->pr_nidle;
1074:
1075: print_pool(&pi, name);
1.48 art 1076:
1.129 dlg 1077: inuse += (pi.pr_nget - pi.pr_nput) * pi.pr_size;
1078: total += pi.pr_npages * pi.pr_pgsize;
1.56 angelos 1079:
1.120 tedu 1080: addr = (u_long)SIMPLEQ_NEXT(pp, pr_poollist);
1.48 art 1081: }
1082:
1083: inuse /= 1024;
1084: total /= 1024;
1085: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1086: inuse, total, (double)(100 * inuse) / total);
1087: }
1088:
1.1 deraadt 1089: /*
1090: * kread reads something from the kernel, given its nlist index.
1091: */
1092: void
1.72 deraadt 1093: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1094: {
1095: char *sym;
1096:
1097: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1098: sym = namelist[nlx].n_name;
1099: if (*sym == '_')
1100: ++sym;
1.50 art 1101: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1102: }
1103: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1104: sym = namelist[nlx].n_name;
1105: if (*sym == '_')
1106: ++sym;
1.50 art 1107: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1108: }
1109: }
1110:
1111: void
1.72 deraadt 1112: usage(void)
1.1 deraadt 1113: {
1.88 jmc 1114: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.109 sobrado 1115: "[-N system] [-w wait] [disk ...]\n", __progname);
1.1 deraadt 1116: exit(1);
1117: }
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