Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.110
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.110 ! otto 2: /* $OpenBSD: vmstat.c,v 1.110 2008/09/08 09:05:02 otto 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
1.110 ! otto 43: static const char rcsid[] = "$OpenBSD: vmstat.c,v 1.110 2008/09/08 09:05:02 otto 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" },
1.107 deraadt 95: #define X_KMPAGESFREE 8 /* sysctl */
1.98 mickey 96: { "_uvm_km_pages_free" },
1.1 deraadt 97: { "" },
98: };
99:
1.6 tholo 100: /* Objects defined in dkstats.c */
1.73 tdeval 101: extern struct _disk cur, last;
1.10 deraadt 102: extern char **dr_name;
103: extern int *dk_select, dk_ndrive;
1.1 deraadt 104:
1.29 art 105: struct uvmexp uvmexp, ouvmexp;
1.6 tholo 106: int ndrives;
1.1 deraadt 107:
108: int winlines = 20;
109:
110: kvm_t *kd;
111:
112: #define FORKSTAT 0x01
113: #define INTRSTAT 0x02
114: #define MEMSTAT 0x04
115: #define SUMSTAT 0x08
116: #define TIMESTAT 0x10
117: #define VMSTAT 0x20
118:
1.66 millert 119: void cpustats(void);
1.101 otto 120: time_t getuptime(void);
1.66 millert 121: void dkstats(void);
122: void dointr(void);
123: void domem(void);
124: void dopool(void);
125: void dosum(void);
126: void dovmstat(u_int, int);
127: void kread(int, void *, size_t);
128: void usage(void);
129: void dotimes(void);
130: void doforkst(void);
1.101 otto 131: void needhdr(int);
132: int pct(long, long);
1.66 millert 133: void printhdr(void);
1.1 deraadt 134:
1.66 millert 135: char **choosedrives(char **);
1.10 deraadt 136:
137: /* Namelist and memory file names. */
138: char *nlistf, *memf;
1.6 tholo 139:
1.50 art 140: extern char *__progname;
141:
1.65 art 142: int verbose = 0;
1.87 aaron 143: int zflag = 0;
1.65 art 144:
1.84 deraadt 145: int ncpu;
146:
1.21 millert 147: int
1.72 deraadt 148: main(int argc, char *argv[])
1.1 deraadt 149: {
1.102 deraadt 150: char errbuf[_POSIX2_LINE_MAX];
151: int c, todo = 0, reps = 0, mib[2];
152: const char *errstr;
153: u_int interval = 0;
1.84 deraadt 154: size_t size;
1.96 djm 155: gid_t gid;
1.1 deraadt 156:
1.87 aaron 157: while ((c = getopt(argc, argv, "c:fiM:mN:stw:vz")) != -1) {
1.1 deraadt 158: switch (c) {
159: case 'c':
160: reps = atoi(optarg);
161: break;
162: case 'f':
163: todo |= FORKSTAT;
164: break;
165: case 'i':
166: todo |= INTRSTAT;
167: break;
168: case 'M':
169: memf = optarg;
170: break;
171: case 'm':
172: todo |= MEMSTAT;
173: break;
174: case 'N':
175: nlistf = optarg;
176: break;
177: case 's':
178: todo |= SUMSTAT;
179: break;
180: case 't':
181: todo |= TIMESTAT;
182: break;
183: case 'w':
1.102 deraadt 184: interval = (u_int)strtonum(optarg, 0, 1000, &errstr);
185: if (errstr)
1.104 pedro 186: errx(1, "-w %s: %s", optarg, errstr);
1.1 deraadt 187: break;
1.65 art 188: case 'v':
189: verbose = 1;
190: break;
1.87 aaron 191: case 'z':
192: zflag = 1;
193: break;
1.1 deraadt 194: case '?':
195: default:
196: usage();
197: }
198: }
199: argc -= optind;
200: argv += optind;
201:
202: if (todo == 0)
203: todo = VMSTAT;
204:
1.96 djm 205: gid = getgid();
1.56 angelos 206: if (nlistf != NULL || memf != NULL) {
1.96 djm 207: if (setresgid(gid, gid, gid) == -1)
208: err(1, "setresgid");
1.56 angelos 209: }
210:
1.1 deraadt 211: /*
212: * Discard setgid privileges if not the running kernel so that bad
213: * guys can't print interesting stuff from kernel memory.
214: */
1.15 tholo 215: if (nlistf != NULL || memf != NULL) {
1.56 angelos 216: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
217: if (kd == 0)
218: errx(1, "kvm_openfiles: %s", errbuf);
219:
1.96 djm 220: if (nlistf == NULL && memf == NULL)
221: if (setresgid(gid, gid, gid) == -1)
222: err(1, "setresgid");
223:
1.56 angelos 224: if ((c = kvm_nlist(kd, namelist)) != 0) {
225:
226: if (c > 0) {
227: (void)fprintf(stderr,
228: "%s: undefined symbols:", __progname);
229: for (c = 0;
230: c < sizeof(namelist)/sizeof(namelist[0]);
231: c++)
232: if (namelist[c].n_type == 0)
233: fprintf(stderr, " %s",
234: namelist[c].n_name);
235: (void)fputc('\n', stderr);
236: exit(1);
237: } else
238: errx(1, "kvm_nlist: %s", kvm_geterr(kd));
239: }
1.96 djm 240: } else if (setresgid(gid, gid, gid) == -1)
241: err(1, "setresgid");
1.1 deraadt 242:
1.84 deraadt 243: mib[0] = CTL_HW;
244: mib[1] = HW_NCPU;
245: size = sizeof(ncpu);
246: (void) sysctl(mib, 2, &ncpu, &size, NULL, 0);
247:
1.1 deraadt 248: if (todo & VMSTAT) {
249: struct winsize winsize;
250:
1.6 tholo 251: dkinit(0); /* Initialize disk stats, no disks selected. */
252: argv = choosedrives(argv); /* Select disks. */
1.1 deraadt 253: winsize.ws_row = 0;
1.102 deraadt 254: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize);
1.1 deraadt 255: if (winsize.ws_row > 0)
256: winlines = winsize.ws_row;
257:
258: }
1.25 deraadt 259:
1.1 deraadt 260: #define BACKWARD_COMPATIBILITY
261: #ifdef BACKWARD_COMPATIBILITY
262: if (*argv) {
1.102 deraadt 263: interval = (u_int)strtonum(*argv, 0, 1000, &errstr);
264: if (errstr)
1.104 pedro 265: errx(1, "%s: %s", *argv, errstr);
1.103 deraadt 266:
1.1 deraadt 267: if (*++argv)
268: reps = atoi(*argv);
269: }
270: #endif
271:
272: if (interval) {
273: if (!reps)
274: reps = -1;
275: } else if (reps)
276: interval = 1;
277:
278: if (todo & FORKSTAT)
279: doforkst();
1.48 art 280: if (todo & MEMSTAT) {
1.1 deraadt 281: domem();
1.48 art 282: dopool();
283: }
1.1 deraadt 284: if (todo & SUMSTAT)
285: dosum();
286: if (todo & TIMESTAT)
287: dotimes();
288: if (todo & INTRSTAT)
289: dointr();
290: if (todo & VMSTAT)
291: dovmstat(interval, reps);
292: exit(0);
293: }
294:
295: char **
1.72 deraadt 296: choosedrives(char **argv)
1.1 deraadt 297: {
1.62 mpech 298: int i;
1.1 deraadt 299:
300: /*
301: * Choose drives to be displayed. Priority goes to (in order) drives
302: * supplied as arguments, default drives. If everything isn't filled
303: * in and there are drives not taken care of, display the first few
304: * that fit.
305: */
306: #define BACKWARD_COMPATIBILITY
307: for (ndrives = 0; *argv; ++argv) {
308: #ifdef BACKWARD_COMPATIBILITY
309: if (isdigit(**argv))
310: break;
311: #endif
312: for (i = 0; i < dk_ndrive; i++) {
313: if (strcmp(dr_name[i], *argv))
314: continue;
1.6 tholo 315: dk_select[i] = 1;
1.1 deraadt 316: ++ndrives;
317: break;
318: }
319: }
1.64 deraadt 320: for (i = 0; i < dk_ndrive && ndrives < 2; i++) {
1.6 tholo 321: if (dk_select[i])
1.1 deraadt 322: continue;
1.6 tholo 323: dk_select[i] = 1;
1.1 deraadt 324: ++ndrives;
325: }
326: return(argv);
327: }
328:
1.19 deraadt 329: time_t
1.72 deraadt 330: getuptime(void)
1.1 deraadt 331: {
1.102 deraadt 332: static struct timeval boottime;
1.11 deraadt 333: static time_t now;
1.1 deraadt 334: time_t uptime;
1.102 deraadt 335: size_t size;
1.50 art 336: int mib[2];
1.1 deraadt 337:
1.50 art 338: if (boottime.tv_sec == 0) {
1.56 angelos 339: if (nlistf == NULL && memf == NULL) {
1.50 art 340: size = sizeof(boottime);
341: mib[0] = CTL_KERN;
342: mib[1] = KERN_BOOTTIME;
343: if (sysctl(mib, 2, &boottime, &size, NULL, 0) < 0) {
1.56 angelos 344: warn("could not get kern.boottime");
1.50 art 345: bzero(&boottime, sizeof(boottime));
346: }
1.56 angelos 347: } else {
348: kread(X_BOOTTIME, &boottime, sizeof(boottime));
1.50 art 349: }
350: }
1.1 deraadt 351: (void)time(&now);
1.11 deraadt 352: uptime = now - boottime.tv_sec;
1.50 art 353: if (uptime <= 0 || uptime > 60*60*24*365*10)
354: errx(1, "time makes no sense; namelist must be wrong");
355:
1.1 deraadt 356: return(uptime);
357: }
358:
1.105 cloder 359: int hz;
360: volatile sig_atomic_t hdrcnt;
1.1 deraadt 361:
362: void
1.72 deraadt 363: dovmstat(u_int interval, int reps)
1.1 deraadt 364: {
365: time_t uptime, halfuptime;
1.50 art 366: struct clockinfo clkinfo;
1.102 deraadt 367: struct vmtotal total;
1.1 deraadt 368: size_t size;
1.102 deraadt 369: int mib[2];
1.1 deraadt 370:
371: uptime = getuptime();
372: halfuptime = uptime / 2;
373: (void)signal(SIGCONT, needhdr);
374:
1.50 art 375: mib[0] = CTL_KERN;
376: mib[1] = KERN_CLOCKRATE;
377: size = sizeof(clkinfo);
378: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) {
1.56 angelos 379: warn("could not read kern.clockrate");
1.50 art 380: return;
381: }
382: hz = clkinfo.stathz;
1.1 deraadt 383:
384: for (hdrcnt = 1;;) {
1.6 tholo 385: /* Read new disk statistics */
386: dkreadstats();
1.73 tdeval 387: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
388: printhdr();
1.56 angelos 389: if (nlistf == NULL && memf == NULL) {
390: size = sizeof(struct uvmexp);
1.52 angelos 391: mib[0] = CTL_VM;
392: mib[1] = VM_UVMEXP;
393: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 394: warn("could not get vm.uvmexp");
395: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 396: }
1.56 angelos 397: } else {
398: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 399: }
1.1 deraadt 400: size = sizeof(total);
401: mib[0] = CTL_VM;
402: mib[1] = VM_METER;
403: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
1.56 angelos 404: warn("could not read vm.vmmeter");
1.1 deraadt 405: bzero(&total, sizeof(total));
406: }
1.22 millert 407: (void)printf("%2u%2u%2u",
1.1 deraadt 408: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.29 art 409: #define rate(x) (((x) + halfuptime) / uptime) /* round */
1.102 deraadt 410: #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10))
1.106 sobrado 411: (void)printf("%7u %7u ",
1.1 deraadt 412: pgtok(total.t_avm), pgtok(total.t_free));
1.106 sobrado 413: (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 414: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
415: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
416: (void)printf("%3u %3u ",
417: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
418: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
419: dkstats();
1.64 deraadt 420: (void)printf("%4u %5u %4u ",
1.29 art 421: rate(uvmexp.intrs - ouvmexp.intrs),
422: rate(uvmexp.syscalls - ouvmexp.syscalls),
423: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 424: cpustats();
425: (void)printf("\n");
426: (void)fflush(stdout);
427: if (reps >= 0 && --reps <= 0)
428: break;
1.29 art 429: ouvmexp = uvmexp;
1.1 deraadt 430: uptime = interval;
431: /*
432: * We round upward to avoid losing low-frequency events
433: * (i.e., >= 1 per interval but < 1 per second).
434: */
1.14 deraadt 435: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 436: (void)sleep(interval);
437: }
438: }
439:
1.21 millert 440: void
1.72 deraadt 441: printhdr(void)
1.1 deraadt 442: {
1.62 mpech 443: int i;
1.1 deraadt 444:
1.108 sobrado 445: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 446: if (ndrives > 0)
1.106 sobrado 447: (void)printf("%s %*straps cpu\n",
1.6 tholo 448: ((ndrives > 1) ? "disks" : "disk"),
1.106 sobrado 449: ((ndrives > 1) ? ndrives * 4 - 5 : 0), "");
1.1 deraadt 450: else
1.106 sobrado 451: (void)printf("%*s traps cpu\n",
1.6 tholo 452: ndrives * 3, "");
453:
1.106 sobrado 454: (void)printf(" r b w avm fre flt re pi po fr sr ");
1.1 deraadt 455: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 456: if (dk_select[i])
1.67 ho 457: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 458: dr_name[i][1],
1.1 deraadt 459: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 460: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 461: hdrcnt = winlines - 2;
462: }
463:
464: /*
465: * Force a header to be prepended to the next output.
466: */
1.90 deraadt 467: /* ARGSUSED */
1.1 deraadt 468: void
1.78 deraadt 469: needhdr(int signo)
1.1 deraadt 470: {
471:
472: hdrcnt = 1;
473: }
474:
475: void
1.72 deraadt 476: dotimes(void)
1.1 deraadt 477: {
478: u_int pgintime, rectime;
1.102 deraadt 479: size_t size;
1.52 angelos 480: int mib[2];
1.1 deraadt 481:
1.56 angelos 482: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 483: pgintime = 0;
484: rectime = 0;
1.56 angelos 485:
486: if (nlistf == NULL && memf == NULL) {
487: size = sizeof(struct uvmexp);
1.52 angelos 488: mib[0] = CTL_VM;
489: mib[1] = VM_UVMEXP;
490: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 491: warn("could not read vm.uvmexp");
492: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 493: }
1.56 angelos 494: } else {
495: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 496: }
497:
1.29 art 498: (void)printf("%u reactivates, %u total time (usec)\n",
499: uvmexp.pdreact, rectime);
1.89 miod 500: if (uvmexp.pdreact != 0)
501: (void)printf("average: %u usec / reclaim\n",
502: rectime / uvmexp.pdreact);
1.29 art 503: (void)printf("\n");
504: (void)printf("%u page ins, %u total time (msec)\n",
505: uvmexp.pageins, pgintime / 10);
1.89 miod 506: if (uvmexp.pageins != 0)
507: (void)printf("average: %8.1f msec / page in\n",
1.103 deraadt 508: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 509: }
510:
1.21 millert 511: int
1.72 deraadt 512: pct(long top, long bot)
1.1 deraadt 513: {
1.102 deraadt 514: int ans;
1.1 deraadt 515:
516: if (bot == 0)
517: return(0);
518: ans = (quad_t)top * 100 / bot;
519: return (ans);
520: }
521:
522: #define PCT(top, bot) pct((long)(top), (long)(bot))
523:
524: void
1.72 deraadt 525: dosum(void)
1.1 deraadt 526: {
527: struct nchstats nchstats;
1.102 deraadt 528: int mib[2], nselcoll;
1.1 deraadt 529: long nchtotal;
1.52 angelos 530: size_t size;
1.1 deraadt 531:
1.56 angelos 532: if (nlistf == NULL && memf == NULL) {
533: size = sizeof(struct uvmexp);
1.52 angelos 534: mib[0] = CTL_VM;
535: mib[1] = VM_UVMEXP;
536: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 537: warn("could not read vm.uvmexp");
538: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 539: }
1.56 angelos 540: } else {
541: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 542: }
543:
1.32 art 544: /* vm_page constants */
1.35 hugh 545: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 546:
547: /* vm_page counters */
1.35 hugh 548: (void)printf("%11u pages managed\n", uvmexp.npages);
549: (void)printf("%11u pages free\n", uvmexp.free);
550: (void)printf("%11u pages active\n", uvmexp.active);
551: (void)printf("%11u pages inactive\n", uvmexp.inactive);
552: (void)printf("%11u pages being paged out\n", uvmexp.paging);
553: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 554: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 555: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 556: uvmexp.reserve_pagedaemon);
1.35 hugh 557: (void)printf("%11u pages reserved for kernel\n",
1.48 art 558: uvmexp.reserve_kernel);
1.32 art 559:
560: /* swap */
1.35 hugh 561: (void)printf("%11u swap pages\n", uvmexp.swpages);
562: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
563: (void)printf("%11u total anon's in system\n", uvmexp.nanon);
564: (void)printf("%11u free anon's\n", uvmexp.nfreeanon);
1.32 art 565:
566: /* stat counters */
1.35 hugh 567: (void)printf("%11u page faults\n", uvmexp.faults);
568: (void)printf("%11u traps\n", uvmexp.traps);
569: (void)printf("%11u interrupts\n", uvmexp.intrs);
570: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
1.95 mickey 571: (void)printf("%11u fpu context switches\n", uvmexp.fpswtch);
1.35 hugh 572: (void)printf("%11u software interrupts\n", uvmexp.softs);
573: (void)printf("%11u syscalls\n", uvmexp.syscalls);
574: (void)printf("%11u pagein operations\n", uvmexp.pageins);
575: (void)printf("%11u swap ins\n", uvmexp.swapins);
576: (void)printf("%11u swap outs\n", uvmexp.swapouts);
577: (void)printf("%11u forks\n", uvmexp.forks);
578: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 579: uvmexp.forks_sharevm);
1.97 pedro 580: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.32 art 581:
582: /* daemon counters */
1.64 deraadt 583: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 584: uvmexp.pdwoke);
1.35 hugh 585: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
586: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
587: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
588: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
589: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 590:
1.56 angelos 591: if (nlistf == NULL && memf == NULL) {
1.52 angelos 592: size = sizeof(nchstats);
593: mib[0] = CTL_KERN;
594: mib[1] = KERN_NCHSTATS;
595: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 596: warn("could not read kern.nchstats");
1.52 angelos 597: bzero(&nchstats, sizeof(nchstats));
598: }
1.56 angelos 599: } else {
600: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 601: }
602:
1.1 deraadt 603: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
604: nchstats.ncs_badhits + nchstats.ncs_falsehits +
605: nchstats.ncs_miss + nchstats.ncs_long;
1.35 hugh 606: (void)printf("%11ld total name lookups\n", nchtotal);
1.52 angelos 607: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
608: "per-directory\n",
1.1 deraadt 609: "", PCT(nchstats.ncs_goodhits, nchtotal),
610: PCT(nchstats.ncs_neghits, nchtotal),
611: PCT(nchstats.ncs_pass2, nchtotal));
1.35 hugh 612: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.1 deraadt 613: PCT(nchstats.ncs_badhits, nchtotal),
614: PCT(nchstats.ncs_falsehits, nchtotal),
615: PCT(nchstats.ncs_long, nchtotal));
1.52 angelos 616:
1.56 angelos 617: if (nlistf == NULL && memf == NULL) {
1.52 angelos 618: size = sizeof(nselcoll);
619: mib[0] = CTL_KERN;
620: mib[1] = KERN_NSELCOLL;
621: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 622: warn("could not read kern.nselcoll");
1.52 angelos 623: nselcoll = 0;
624: }
1.56 angelos 625: } else {
626: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 627: }
1.50 art 628: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 629: }
630:
631: void
1.72 deraadt 632: doforkst(void)
1.1 deraadt 633: {
634: struct forkstat fks;
1.52 angelos 635: size_t size;
636: int mib[2];
637:
1.56 angelos 638: if (nlistf == NULL && memf == NULL) {
1.52 angelos 639: size = sizeof(struct forkstat);
640: mib[0] = CTL_KERN;
641: mib[1] = KERN_FORKSTAT;
642: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 643: warn("could not read kern.forkstat");
1.52 angelos 644: bzero(&fks, sizeof(struct forkstat));
645: }
1.56 angelos 646: } else {
647: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 648: }
1.1 deraadt 649:
650: (void)printf("%d forks, %d pages, average %.2f\n",
651: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
652: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 653: fks.cntvfork, fks.sizvfork,
654: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.12 tholo 655: (void)printf("%d rforks, %d pages, average %.2f\n",
1.72 deraadt 656: fks.cntrfork, fks.sizrfork,
657: (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
1.36 niklas 658: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 659: fks.cntkthread, fks.sizkthread,
660: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 661: }
662:
663: void
1.72 deraadt 664: dkstats(void)
1.1 deraadt 665: {
1.62 mpech 666: int dn, state;
1.1 deraadt 667: double etime;
668:
1.6 tholo 669: /* Calculate disk stat deltas. */
670: dkswap();
1.1 deraadt 671: etime = 0;
672: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 673: etime += cur.cp_time[state];
1.1 deraadt 674: }
675: if (etime == 0)
676: etime = 1;
677: etime /= hz;
1.84 deraadt 678: etime /= ncpu;
1.1 deraadt 679: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 680: if (!dk_select[dn])
1.1 deraadt 681: continue;
1.82 tedu 682: (void)printf("%3.0f ",
683: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 684: }
685: }
686:
687: void
1.72 deraadt 688: cpustats(void)
1.1 deraadt 689: {
1.102 deraadt 690: double percent, total;
1.62 mpech 691: int state;
1.1 deraadt 692:
693: total = 0;
694: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 695: total += cur.cp_time[state];
1.1 deraadt 696: if (total)
1.101 otto 697: percent = 100 / total;
1.1 deraadt 698: else
1.101 otto 699: percent = 0;
700: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
701: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent);
702: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 703: }
704:
705: void
1.72 deraadt 706: dointr(void)
1.74 art 707: {
1.102 deraadt 708: int nintr, mib[4], i;
709: char intrname[128];
710: u_int64_t inttotal;
1.74 art 711: time_t uptime;
712: size_t siz;
713:
1.93 miod 714: if (nlistf != NULL || memf != NULL) {
715: errx(1,
716: "interrupt statistics are only available on live kernels");
717: }
718:
1.74 art 719: uptime = getuptime();
720:
721: mib[0] = CTL_KERN;
722: mib[1] = KERN_INTRCNT;
723: mib[2] = KERN_INTRCNT_NUM;
724: siz = sizeof(nintr);
725: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
726: warnx("could not read kern.intrcnt.nintrcnt");
727: return;
728: }
729:
1.91 deraadt 730: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 731:
1.74 art 732: inttotal = 0;
733: for (i = 0; i < nintr; i++) {
1.87 aaron 734: char name[128];
1.90 deraadt 735: u_quad_t cnt;
1.87 aaron 736: int vector;
1.74 art 737:
738: mib[0] = CTL_KERN;
739: mib[1] = KERN_INTRCNT;
740: mib[2] = KERN_INTRCNT_NAME;
741: mib[3] = i;
1.87 aaron 742: siz = sizeof(name);
743: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 744: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 745: return;
746: }
747:
748: mib[0] = CTL_KERN;
749: mib[1] = KERN_INTRCNT;
750: mib[2] = KERN_INTRCNT_VECTOR;
751: mib[3] = i;
752: siz = sizeof(vector);
753: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
754: strlcpy(intrname, name, sizeof(intrname));
755: } else {
756: snprintf(intrname, sizeof(intrname), "irq%d/%s",
757: vector, name);
1.74 art 758: }
759:
760: mib[0] = CTL_KERN;
761: mib[1] = KERN_INTRCNT;
762: mib[2] = KERN_INTRCNT_CNT;
763: mib[3] = i;
764: siz = sizeof(cnt);
765: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 766: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 767: return;
1.74 art 768: }
1.90 deraadt 769:
1.87 aaron 770: if (cnt || zflag)
1.91 deraadt 771: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 772: cnt, cnt / uptime);
1.74 art 773: inttotal += cnt;
774: }
775:
1.91 deraadt 776: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 777: inttotal / uptime);
1.1 deraadt 778: }
779:
780: /*
781: * These names are defined in <sys/malloc.h>.
782: */
1.101 otto 783: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 784:
785: void
1.72 deraadt 786: domem(void)
1.1 deraadt 787: {
1.102 deraadt 788: struct kmembuckets buckets[MINBUCKET + 16], *kp;
789: struct kmemstats kmemstats[M_LAST], *ks;
790: int i, j, len, size, first, mib[4];
1.50 art 791: u_long totuse = 0, totfree = 0;
1.102 deraadt 792: char buf[BUFSIZ], *bufp, *ap;
1.50 art 793: quad_t totreq = 0;
1.101 otto 794: const char *name;
1.50 art 795: size_t siz;
796:
797: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 798: mib[0] = CTL_KERN;
1.50 art 799: mib[1] = KERN_MALLOCSTATS;
800: mib[2] = KERN_MALLOC_BUCKETS;
801: siz = sizeof(buf);
802: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 803: warnx("could not read kern.malloc.buckets");
1.50 art 804: return;
805: }
806:
807: bufp = buf;
808: mib[2] = KERN_MALLOC_BUCKET;
809: siz = sizeof(struct kmembuckets);
810: i = 0;
811: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 812: mib[3] = atoi(ap);
1.50 art 813:
814: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 815: NULL, 0) < 0) {
1.56 angelos 816: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 817: return;
818: }
819: i++;
820: }
821: } else {
1.53 deraadt 822: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 823: }
1.1 deraadt 824:
1.18 kstailey 825: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
826: i++, kp++) {
1.65 art 827: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 828: continue;
1.18 kstailey 829: if (first) {
830: (void)printf("Memory statistics by bucket size\n");
831: (void)printf(
1.50 art 832: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 833: first = 0;
834: }
1.1 deraadt 835: size = 1 << i;
1.60 art 836: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
837: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
838: (unsigned long long)kp->kb_totalfree,
839: (unsigned long long)kp->kb_calls,
840: (unsigned long long)kp->kb_highwat,
841: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 842: totfree += size * kp->kb_totalfree;
1.18 kstailey 843: }
844:
845: /*
846: * If kmem statistics are not being gathered by the kernel,
847: * first will still be 1.
848: */
849: if (first) {
850: printf(
851: "Kmem statistics are not being gathered by the kernel.\n");
852: return;
1.1 deraadt 853: }
854:
1.52 angelos 855: if (memf == NULL && nlistf == NULL) {
856: bzero(kmemstats, sizeof(kmemstats));
857: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 858: mib[0] = CTL_KERN;
1.52 angelos 859: mib[1] = KERN_MALLOCSTATS;
860: mib[2] = KERN_MALLOC_KMEMSTATS;
861: mib[3] = i;
862: siz = sizeof(struct kmemstats);
863:
1.103 deraadt 864: /*
1.52 angelos 865: * Skip errors -- these are presumed to be unallocated
866: * entries.
867: */
868: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
869: continue;
870: }
871: } else {
872: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
873: }
874:
1.1 deraadt 875: (void)printf("\nMemory usage type by bucket size\n");
876: (void)printf(" Size Type(s)\n");
877: kp = &buckets[MINBUCKET];
878: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
879: if (kp->kb_calls == 0)
880: continue;
881: first = 1;
882: len = 8;
883: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
884: if (ks->ks_calls == 0)
885: continue;
886: if ((ks->ks_size & j) == 0)
887: continue;
888: name = kmemnames[i] ? kmemnames[i] : "undefined";
889: len += 2 + strlen(name);
890: if (first)
891: printf("%8d %s", j, name);
892: else
893: printf(",");
894: if (len >= 80) {
895: printf("\n\t ");
896: len = 10 + strlen(name);
897: }
898: if (!first)
899: printf(" %s", name);
900: first = 0;
901: }
902: printf("\n");
903: }
904:
905: (void)printf(
1.26 deraadt 906: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 907: (void)printf(
1.26 deraadt 908: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 909: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
910: if (ks->ks_calls == 0)
911: continue;
1.24 mickey 912: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 913: kmemnames[i] ? kmemnames[i] : "undefined",
914: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
915: (ks->ks_maxused + 1023) / 1024,
916: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
917: ks->ks_limblocks, ks->ks_mapblocks);
918: first = 1;
919: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
920: if ((ks->ks_size & j) == 0)
921: continue;
922: if (first)
923: printf(" %d", j);
924: else
925: printf(",%d", j);
926: first = 0;
927: }
928: printf("\n");
929: totuse += ks->ks_memuse;
930: totreq += ks->ks_calls;
931: }
932: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 933: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 934: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
935: }
936:
1.54 art 937: static void
938: print_pool(struct pool *pp, char *name)
939: {
940: static int first = 1;
1.102 deraadt 941: char maxp[32];
1.54 art 942: int ovflw;
943:
944: if (first) {
945: (void)printf("Memory resource pool statistics\n");
946: (void)printf(
947: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
948: "Name",
949: "Size",
950: "Requests",
951: "Fail",
1.110 ! otto 952: "InUse",
1.54 art 953: "Pgreq",
954: "Pgrel",
955: "Npage",
956: "Hiwat",
957: "Minpg",
958: "Maxpg",
959: "Idle");
960: first = 0;
961: }
1.65 art 962:
963: /* Skip unused pools unless verbose output. */
964: if (pp->pr_nget == 0 && !verbose)
965: return;
966:
1.54 art 967: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 968: snprintf(maxp, sizeof maxp, "inf");
1.54 art 969: else
1.69 deraadt 970: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 971: /*
972: * Print single word. `ovflow' is number of characters didn't fit
973: * on the last word. `fmt' is a format string to print this word.
974: * It must contain asterisk for field width. `width' is a width
975: * occupied by this word. `fixed' is a number of constant chars in
976: * `fmt'. `val' is a value to be printed using format string `fmt'.
977: */
978: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
979: (ovflw) += printf((fmt), \
980: (width) - (fixed) - (ovflw) > 0 ? \
981: (width) - (fixed) - (ovflw) : 0, \
982: (val)) - (width); \
983: if ((ovflw) < 0) \
984: (ovflw) = 0; \
985: } while (/* CONSTCOND */0)
986:
987: ovflw = 0;
988: PRWORD(ovflw, "%-*s", 11, 0, name);
989: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
990: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
991: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
1.110 ! otto 992: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput);
1.54 art 993: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
994: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
995: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
996: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
997: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
998: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 999: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 1000: }
1001:
1.55 art 1002: static void dopool_kvm(void);
1003: static void dopool_sysctl(void);
1004:
1.48 art 1005: void
1006: dopool(void)
1007: {
1.55 art 1008: if (nlistf == NULL && memf == NULL)
1009: dopool_sysctl();
1010: else
1011: dopool_kvm();
1012: }
1013:
1014: void
1015: dopool_sysctl(void)
1016: {
1.102 deraadt 1017: int mib[4], npools, i, kmfp;
1.63 art 1018: long total = 0, inuse = 0;
1.55 art 1019: struct pool pool;
1020: size_t size;
1021:
1022: mib[0] = CTL_KERN;
1023: mib[1] = KERN_POOL;
1024: mib[2] = KERN_POOL_NPOOLS;
1025: size = sizeof(npools);
1026: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 1027: warn("can't figure out number of pools in kernel");
1.55 art 1028: return;
1029: }
1030:
1031: for (i = 1; npools; i++) {
1032: char name[32];
1033:
1034: mib[0] = CTL_KERN;
1035: mib[1] = KERN_POOL;
1036: mib[2] = KERN_POOL_POOL;
1037: mib[3] = i;
1038: size = sizeof(struct pool);
1039: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
1040: if (errno == ENOENT)
1041: continue;
1.92 pedro 1042: warn("error getting pool");
1.55 art 1043: return;
1044: }
1045: npools--;
1046: mib[2] = KERN_POOL_NAME;
1047: size = sizeof(name);
1048: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1049: warn("error getting pool name");
1.55 art 1050: return;
1051: }
1052: print_pool(&pool, name);
1.63 art 1053:
1054: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1055: total += pool.pr_npages * getpagesize(); /* XXX */
1.55 art 1056: }
1.63 art 1057:
1058: inuse /= 1024;
1059: total /= 1024;
1.107 deraadt 1060: if (nlistf == NULL && memf == NULL) {
1061: int mib[] = { CTL_VM, VM_KMPAGESFREE };
1062: size_t size = sizeof(kmfp);
1063:
1064: if (sysctl(mib, 2, &kmfp, &size, NULL, 0) < 0) {
1065: warn("could not read uvm.kmpagesfree");
1066: return;
1067: }
1068: } else {
1069: kread(X_KMPAGESFREE, &kmfp, sizeof(kmfp));
1070: }
1071: total += kmfp * (getpagesize() / 1024);
1.63 art 1072: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1073: inuse, total, (double)(100 * inuse) / total);
1.55 art 1074: }
1075:
1076: void
1077: dopool_kvm(void)
1078: {
1.48 art 1079: TAILQ_HEAD(,pool) pool_head;
1080: struct pool pool, *pp = &pool;
1.102 deraadt 1081: long total = 0, inuse = 0;
1082: u_long addr;
1.98 mickey 1083: int kmfp;
1.48 art 1084:
1085: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.102 deraadt 1086: addr = (u_long)TAILQ_FIRST(&pool_head);
1.48 art 1087:
1.55 art 1088: while (addr != 0) {
1.54 art 1089: char name[32];
1.56 angelos 1090:
1.48 art 1091: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1092: (void)fprintf(stderr,
1093: "vmstat: pool chain trashed: %s\n",
1094: kvm_geterr(kd));
1095: exit(1);
1096: }
1.102 deraadt 1097: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1098: (void)fprintf(stderr,
1099: "vmstat: pool name trashed: %s\n",
1100: kvm_geterr(kd));
1101: exit(1);
1102: }
1.56 angelos 1103:
1.48 art 1104: name[31] = '\0';
1105:
1.54 art 1106: print_pool(pp, name);
1.48 art 1107:
1108: inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
1.63 art 1109: total += pp->pr_npages * getpagesize(); /* XXX */
1.56 angelos 1110:
1.102 deraadt 1111: addr = (u_long)TAILQ_NEXT(pp, pr_poollist);
1.48 art 1112: }
1113:
1114: inuse /= 1024;
1115: total /= 1024;
1.107 deraadt 1116: kread(X_KMPAGESFREE, &kmfp, sizeof(kmfp));
1117: total += kmfp * (getpagesize() / 1024);
1.48 art 1118: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1119: inuse, total, (double)(100 * inuse) / total);
1120: }
1121:
1.1 deraadt 1122: /*
1123: * kread reads something from the kernel, given its nlist index.
1124: */
1125: void
1.72 deraadt 1126: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1127: {
1128: char *sym;
1129:
1130: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1131: sym = namelist[nlx].n_name;
1132: if (*sym == '_')
1133: ++sym;
1.50 art 1134: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1135: }
1136: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1137: sym = namelist[nlx].n_name;
1138: if (*sym == '_')
1139: ++sym;
1.50 art 1140: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1141: }
1142: }
1143:
1144: void
1.72 deraadt 1145: usage(void)
1.1 deraadt 1146: {
1.88 jmc 1147: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.109 sobrado 1148: "[-N system] [-w wait] [disk ...]\n", __progname);
1.1 deraadt 1149: exit(1);
1150: }
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