Annotation of src/usr.bin/vmstat/vmstat.c, Revision 1.114
1.11 deraadt 1: /* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */
1.114 ! tedu 2: /* $OpenBSD: vmstat.c,v 1.113 2009/10/27 23:59:49 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: */
1.48 art 32:
1.1 deraadt 33: #include <sys/param.h>
34: #include <sys/time.h>
35: #include <sys/proc.h>
36: #include <sys/user.h>
37: #include <sys/dkstat.h>
38: #include <sys/buf.h>
39: #include <sys/namei.h>
40: #include <sys/malloc.h>
41: #include <sys/fcntl.h>
42: #include <sys/ioctl.h>
43: #include <sys/sysctl.h>
44: #include <sys/device.h>
1.48 art 45: #include <sys/pool.h>
1.1 deraadt 46: #include <time.h>
47: #include <nlist.h>
48: #include <kvm.h>
1.21 millert 49: #include <err.h>
1.1 deraadt 50: #include <errno.h>
51: #include <unistd.h>
52: #include <signal.h>
53: #include <stdio.h>
54: #include <ctype.h>
55: #include <stdlib.h>
56: #include <string.h>
57: #include <paths.h>
58: #include <limits.h>
1.6 tholo 59: #include "dkstats.h"
1.1 deraadt 60:
1.56 angelos 61: #include <uvm/uvm_object.h>
1.29 art 62: #include <uvm/uvm_extern.h>
63:
1.1 deraadt 64: struct nlist namelist[] = {
1.70 deraadt 65: #define X_UVMEXP 0 /* sysctl */
1.29 art 66: { "_uvmexp" },
1.70 deraadt 67: #define X_BOOTTIME 1 /* sysctl */
1.1 deraadt 68: { "_boottime" },
1.70 deraadt 69: #define X_NCHSTATS 2 /* sysctl */
1.1 deraadt 70: { "_nchstats" },
1.70 deraadt 71: #define X_KMEMSTAT 3 /* sysctl */
72: { "_kmemstats" },
73: #define X_KMEMBUCKETS 4 /* sysctl */
74: { "_bucket" },
75: #define X_FORKSTAT 5 /* sysctl */
76: { "_forkstat" },
77: #define X_NSELCOLL 6 /* sysctl */
78: { "_nselcoll" },
79: #define X_POOLHEAD 7 /* sysctl */
80: { "_pool_head" },
1.107 deraadt 81: #define X_KMPAGESFREE 8 /* sysctl */
1.98 mickey 82: { "_uvm_km_pages_free" },
1.1 deraadt 83: { "" },
84: };
85:
1.6 tholo 86: /* Objects defined in dkstats.c */
1.73 tdeval 87: extern struct _disk cur, last;
1.10 deraadt 88: extern char **dr_name;
89: extern int *dk_select, dk_ndrive;
1.1 deraadt 90:
1.29 art 91: struct uvmexp uvmexp, ouvmexp;
1.6 tholo 92: int ndrives;
1.1 deraadt 93:
94: int winlines = 20;
95:
96: kvm_t *kd;
97:
98: #define FORKSTAT 0x01
99: #define INTRSTAT 0x02
100: #define MEMSTAT 0x04
101: #define SUMSTAT 0x08
102: #define TIMESTAT 0x10
103: #define VMSTAT 0x20
104:
1.66 millert 105: void cpustats(void);
1.101 otto 106: time_t getuptime(void);
1.66 millert 107: void dkstats(void);
108: void dointr(void);
109: void domem(void);
110: void dopool(void);
111: void dosum(void);
112: void dovmstat(u_int, int);
113: void kread(int, void *, size_t);
114: void usage(void);
115: void dotimes(void);
116: void doforkst(void);
1.101 otto 117: void needhdr(int);
1.112 naddy 118: int pct(int64_t, int64_t);
1.66 millert 119: void printhdr(void);
1.1 deraadt 120:
1.66 millert 121: char **choosedrives(char **);
1.10 deraadt 122:
123: /* Namelist and memory file names. */
124: char *nlistf, *memf;
1.6 tholo 125:
1.50 art 126: extern char *__progname;
127:
1.65 art 128: int verbose = 0;
1.87 aaron 129: int zflag = 0;
1.65 art 130:
1.84 deraadt 131: int ncpu;
132:
1.21 millert 133: int
1.72 deraadt 134: main(int argc, char *argv[])
1.1 deraadt 135: {
1.102 deraadt 136: char errbuf[_POSIX2_LINE_MAX];
137: int c, todo = 0, reps = 0, mib[2];
138: const char *errstr;
139: u_int interval = 0;
1.84 deraadt 140: size_t size;
1.96 djm 141: gid_t gid;
1.1 deraadt 142:
1.87 aaron 143: while ((c = getopt(argc, argv, "c:fiM:mN:stw:vz")) != -1) {
1.1 deraadt 144: switch (c) {
145: case 'c':
146: reps = atoi(optarg);
147: break;
148: case 'f':
149: todo |= FORKSTAT;
150: break;
151: case 'i':
152: todo |= INTRSTAT;
153: break;
154: case 'M':
155: memf = optarg;
156: break;
157: case 'm':
158: todo |= MEMSTAT;
159: break;
160: case 'N':
161: nlistf = optarg;
162: break;
163: case 's':
164: todo |= SUMSTAT;
165: break;
166: case 't':
167: todo |= TIMESTAT;
168: break;
169: case 'w':
1.102 deraadt 170: interval = (u_int)strtonum(optarg, 0, 1000, &errstr);
171: if (errstr)
1.104 pedro 172: errx(1, "-w %s: %s", optarg, errstr);
1.1 deraadt 173: break;
1.65 art 174: case 'v':
175: verbose = 1;
176: break;
1.87 aaron 177: case 'z':
178: zflag = 1;
179: break;
1.1 deraadt 180: case '?':
181: default:
182: usage();
183: }
184: }
185: argc -= optind;
186: argv += optind;
187:
188: if (todo == 0)
189: todo = VMSTAT;
190:
1.96 djm 191: gid = getgid();
1.56 angelos 192: if (nlistf != NULL || memf != NULL) {
1.96 djm 193: if (setresgid(gid, gid, gid) == -1)
194: err(1, "setresgid");
1.56 angelos 195: }
196:
1.1 deraadt 197: /*
198: * Discard setgid privileges if not the running kernel so that bad
199: * guys can't print interesting stuff from kernel memory.
200: */
1.15 tholo 201: if (nlistf != NULL || memf != NULL) {
1.56 angelos 202: kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
203: if (kd == 0)
204: errx(1, "kvm_openfiles: %s", errbuf);
205:
1.96 djm 206: if (nlistf == NULL && memf == NULL)
207: if (setresgid(gid, gid, gid) == -1)
208: err(1, "setresgid");
209:
1.56 angelos 210: if ((c = kvm_nlist(kd, namelist)) != 0) {
211:
212: if (c > 0) {
213: (void)fprintf(stderr,
214: "%s: undefined symbols:", __progname);
215: for (c = 0;
216: c < sizeof(namelist)/sizeof(namelist[0]);
217: c++)
218: if (namelist[c].n_type == 0)
219: fprintf(stderr, " %s",
220: namelist[c].n_name);
221: (void)fputc('\n', stderr);
222: exit(1);
223: } else
224: errx(1, "kvm_nlist: %s", kvm_geterr(kd));
225: }
1.96 djm 226: } else if (setresgid(gid, gid, gid) == -1)
227: err(1, "setresgid");
1.1 deraadt 228:
1.84 deraadt 229: mib[0] = CTL_HW;
230: mib[1] = HW_NCPU;
231: size = sizeof(ncpu);
232: (void) sysctl(mib, 2, &ncpu, &size, NULL, 0);
233:
1.1 deraadt 234: if (todo & VMSTAT) {
235: struct winsize winsize;
236:
1.6 tholo 237: dkinit(0); /* Initialize disk stats, no disks selected. */
238: argv = choosedrives(argv); /* Select disks. */
1.1 deraadt 239: winsize.ws_row = 0;
1.102 deraadt 240: (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize);
1.1 deraadt 241: if (winsize.ws_row > 0)
242: winlines = winsize.ws_row;
243:
244: }
1.25 deraadt 245:
1.1 deraadt 246: #define BACKWARD_COMPATIBILITY
247: #ifdef BACKWARD_COMPATIBILITY
248: if (*argv) {
1.102 deraadt 249: interval = (u_int)strtonum(*argv, 0, 1000, &errstr);
250: if (errstr)
1.104 pedro 251: errx(1, "%s: %s", *argv, errstr);
1.103 deraadt 252:
1.1 deraadt 253: if (*++argv)
254: reps = atoi(*argv);
255: }
256: #endif
257:
258: if (interval) {
259: if (!reps)
260: reps = -1;
261: } else if (reps)
262: interval = 1;
263:
264: if (todo & FORKSTAT)
265: doforkst();
1.48 art 266: if (todo & MEMSTAT) {
1.1 deraadt 267: domem();
1.48 art 268: dopool();
269: }
1.1 deraadt 270: if (todo & SUMSTAT)
271: dosum();
272: if (todo & TIMESTAT)
273: dotimes();
274: if (todo & INTRSTAT)
275: dointr();
276: if (todo & VMSTAT)
277: dovmstat(interval, reps);
278: exit(0);
279: }
280:
281: char **
1.72 deraadt 282: choosedrives(char **argv)
1.1 deraadt 283: {
1.62 mpech 284: int i;
1.1 deraadt 285:
286: /*
287: * Choose drives to be displayed. Priority goes to (in order) drives
288: * supplied as arguments, default drives. If everything isn't filled
289: * in and there are drives not taken care of, display the first few
290: * that fit.
291: */
292: #define BACKWARD_COMPATIBILITY
293: for (ndrives = 0; *argv; ++argv) {
294: #ifdef BACKWARD_COMPATIBILITY
295: if (isdigit(**argv))
296: break;
297: #endif
298: for (i = 0; i < dk_ndrive; i++) {
299: if (strcmp(dr_name[i], *argv))
300: continue;
1.6 tholo 301: dk_select[i] = 1;
1.1 deraadt 302: ++ndrives;
303: break;
304: }
305: }
1.64 deraadt 306: for (i = 0; i < dk_ndrive && ndrives < 2; i++) {
1.6 tholo 307: if (dk_select[i])
1.1 deraadt 308: continue;
1.6 tholo 309: dk_select[i] = 1;
1.1 deraadt 310: ++ndrives;
311: }
312: return(argv);
313: }
314:
1.19 deraadt 315: time_t
1.72 deraadt 316: getuptime(void)
1.1 deraadt 317: {
1.102 deraadt 318: static struct timeval boottime;
1.11 deraadt 319: static time_t now;
1.1 deraadt 320: time_t uptime;
1.102 deraadt 321: size_t size;
1.50 art 322: int mib[2];
1.1 deraadt 323:
1.50 art 324: if (boottime.tv_sec == 0) {
1.56 angelos 325: if (nlistf == NULL && memf == NULL) {
1.50 art 326: size = sizeof(boottime);
327: mib[0] = CTL_KERN;
328: mib[1] = KERN_BOOTTIME;
329: if (sysctl(mib, 2, &boottime, &size, NULL, 0) < 0) {
1.56 angelos 330: warn("could not get kern.boottime");
1.50 art 331: bzero(&boottime, sizeof(boottime));
332: }
1.56 angelos 333: } else {
334: kread(X_BOOTTIME, &boottime, sizeof(boottime));
1.50 art 335: }
336: }
1.1 deraadt 337: (void)time(&now);
1.11 deraadt 338: uptime = now - boottime.tv_sec;
1.50 art 339: if (uptime <= 0 || uptime > 60*60*24*365*10)
340: errx(1, "time makes no sense; namelist must be wrong");
341:
1.1 deraadt 342: return(uptime);
343: }
344:
1.105 cloder 345: int hz;
346: volatile sig_atomic_t hdrcnt;
1.1 deraadt 347:
348: void
1.72 deraadt 349: dovmstat(u_int interval, int reps)
1.1 deraadt 350: {
351: time_t uptime, halfuptime;
1.50 art 352: struct clockinfo clkinfo;
1.102 deraadt 353: struct vmtotal total;
1.1 deraadt 354: size_t size;
1.102 deraadt 355: int mib[2];
1.1 deraadt 356:
357: uptime = getuptime();
358: halfuptime = uptime / 2;
359: (void)signal(SIGCONT, needhdr);
360:
1.50 art 361: mib[0] = CTL_KERN;
362: mib[1] = KERN_CLOCKRATE;
363: size = sizeof(clkinfo);
364: if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) {
1.56 angelos 365: warn("could not read kern.clockrate");
1.50 art 366: return;
367: }
368: hz = clkinfo.stathz;
1.1 deraadt 369:
370: for (hdrcnt = 1;;) {
1.6 tholo 371: /* Read new disk statistics */
372: dkreadstats();
1.73 tdeval 373: if (!--hdrcnt || last.dk_ndrive != cur.dk_ndrive)
374: printhdr();
1.56 angelos 375: if (nlistf == NULL && memf == NULL) {
376: size = sizeof(struct uvmexp);
1.52 angelos 377: mib[0] = CTL_VM;
378: mib[1] = VM_UVMEXP;
379: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 380: warn("could not get vm.uvmexp");
381: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 382: }
1.56 angelos 383: } else {
384: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 385: }
1.1 deraadt 386: size = sizeof(total);
387: mib[0] = CTL_VM;
388: mib[1] = VM_METER;
389: if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
1.56 angelos 390: warn("could not read vm.vmmeter");
1.1 deraadt 391: bzero(&total, sizeof(total));
392: }
1.114 ! tedu 393: (void)printf(" %u %u %u ",
1.1 deraadt 394: total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
1.111 deraadt 395: #define rate(x) ((((unsigned)x) + halfuptime) / uptime) /* round */
1.102 deraadt 396: #define pgtok(a) ((a) * ((unsigned int)uvmexp.pagesize >> 10))
1.114 ! tedu 397: (void)printf("%6u %7u ",
1.1 deraadt 398: pgtok(total.t_avm), pgtok(total.t_free));
1.106 sobrado 399: (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults));
1.29 art 400: (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact));
401: (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins));
402: (void)printf("%3u %3u ",
403: rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0);
404: (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans));
405: dkstats();
1.64 deraadt 406: (void)printf("%4u %5u %4u ",
1.29 art 407: rate(uvmexp.intrs - ouvmexp.intrs),
408: rate(uvmexp.syscalls - ouvmexp.syscalls),
409: rate(uvmexp.swtch - ouvmexp.swtch));
1.1 deraadt 410: cpustats();
411: (void)printf("\n");
412: (void)fflush(stdout);
413: if (reps >= 0 && --reps <= 0)
414: break;
1.29 art 415: ouvmexp = uvmexp;
1.1 deraadt 416: uptime = interval;
417: /*
418: * We round upward to avoid losing low-frequency events
419: * (i.e., >= 1 per interval but < 1 per second).
420: */
1.14 deraadt 421: halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
1.1 deraadt 422: (void)sleep(interval);
423: }
424: }
425:
1.21 millert 426: void
1.72 deraadt 427: printhdr(void)
1.1 deraadt 428: {
1.62 mpech 429: int i;
1.114 ! tedu 430: static int printedhdr;
! 431:
! 432: if (printedhdr && !isatty(STDOUT_FILENO))
! 433: return;
1.1 deraadt 434:
1.108 sobrado 435: (void)printf(" procs memory page%*s", 20, "");
1.6 tholo 436: if (ndrives > 0)
1.106 sobrado 437: (void)printf("%s %*straps cpu\n",
1.6 tholo 438: ((ndrives > 1) ? "disks" : "disk"),
1.106 sobrado 439: ((ndrives > 1) ? ndrives * 4 - 5 : 0), "");
1.1 deraadt 440: else
1.106 sobrado 441: (void)printf("%*s traps cpu\n",
1.6 tholo 442: ndrives * 3, "");
443:
1.106 sobrado 444: (void)printf(" r b w avm fre flt re pi po fr sr ");
1.1 deraadt 445: for (i = 0; i < dk_ndrive; i++)
1.6 tholo 446: if (dk_select[i])
1.67 ho 447: (void)printf("%c%c%c ", dr_name[i][0],
1.64 deraadt 448: dr_name[i][1],
1.1 deraadt 449: dr_name[i][strlen(dr_name[i]) - 1]);
1.79 tedu 450: (void)printf(" int sys cs us sy id\n");
1.1 deraadt 451: hdrcnt = winlines - 2;
1.114 ! tedu 452: printedhdr = 1;
1.1 deraadt 453: }
454:
455: /*
456: * Force a header to be prepended to the next output.
457: */
1.90 deraadt 458: /* ARGSUSED */
1.1 deraadt 459: void
1.78 deraadt 460: needhdr(int signo)
1.1 deraadt 461: {
462:
463: hdrcnt = 1;
464: }
465:
466: void
1.72 deraadt 467: dotimes(void)
1.1 deraadt 468: {
469: u_int pgintime, rectime;
1.102 deraadt 470: size_t size;
1.52 angelos 471: int mib[2];
1.1 deraadt 472:
1.56 angelos 473: /* XXX Why are these set to 0 ? This doesn't look right. */
1.12 tholo 474: pgintime = 0;
475: rectime = 0;
1.56 angelos 476:
477: if (nlistf == NULL && memf == NULL) {
478: size = sizeof(struct uvmexp);
1.52 angelos 479: mib[0] = CTL_VM;
480: mib[1] = VM_UVMEXP;
481: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 482: warn("could not read vm.uvmexp");
483: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 484: }
1.56 angelos 485: } else {
486: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 487: }
488:
1.29 art 489: (void)printf("%u reactivates, %u total time (usec)\n",
490: uvmexp.pdreact, rectime);
1.89 miod 491: if (uvmexp.pdreact != 0)
492: (void)printf("average: %u usec / reclaim\n",
493: rectime / uvmexp.pdreact);
1.29 art 494: (void)printf("\n");
495: (void)printf("%u page ins, %u total time (msec)\n",
496: uvmexp.pageins, pgintime / 10);
1.89 miod 497: if (uvmexp.pageins != 0)
498: (void)printf("average: %8.1f msec / page in\n",
1.103 deraadt 499: pgintime / (uvmexp.pageins * 10.0));
1.1 deraadt 500: }
501:
1.21 millert 502: int
1.112 naddy 503: pct(int64_t top, int64_t bot)
1.1 deraadt 504: {
1.102 deraadt 505: int ans;
1.1 deraadt 506:
507: if (bot == 0)
508: return(0);
1.112 naddy 509: ans = top * 100 / bot;
1.1 deraadt 510: return (ans);
511: }
512:
513: void
1.72 deraadt 514: dosum(void)
1.1 deraadt 515: {
516: struct nchstats nchstats;
1.102 deraadt 517: int mib[2], nselcoll;
1.112 naddy 518: long long nchtotal;
1.52 angelos 519: size_t size;
1.1 deraadt 520:
1.56 angelos 521: if (nlistf == NULL && memf == NULL) {
522: size = sizeof(struct uvmexp);
1.52 angelos 523: mib[0] = CTL_VM;
524: mib[1] = VM_UVMEXP;
525: if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) {
1.56 angelos 526: warn("could not read vm.uvmexp");
527: bzero(&uvmexp, sizeof(struct uvmexp));
1.52 angelos 528: }
1.56 angelos 529: } else {
530: kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp));
1.52 angelos 531: }
532:
1.32 art 533: /* vm_page constants */
1.35 hugh 534: (void)printf("%11u bytes per page\n", uvmexp.pagesize);
1.32 art 535:
536: /* vm_page counters */
1.35 hugh 537: (void)printf("%11u pages managed\n", uvmexp.npages);
538: (void)printf("%11u pages free\n", uvmexp.free);
539: (void)printf("%11u pages active\n", uvmexp.active);
540: (void)printf("%11u pages inactive\n", uvmexp.inactive);
541: (void)printf("%11u pages being paged out\n", uvmexp.paging);
542: (void)printf("%11u pages wired\n", uvmexp.wired);
1.71 art 543: (void)printf("%11u pages zeroed\n", uvmexp.zeropages);
1.35 hugh 544: (void)printf("%11u pages reserved for pagedaemon\n",
1.48 art 545: uvmexp.reserve_pagedaemon);
1.35 hugh 546: (void)printf("%11u pages reserved for kernel\n",
1.48 art 547: uvmexp.reserve_kernel);
1.32 art 548:
549: /* swap */
1.35 hugh 550: (void)printf("%11u swap pages\n", uvmexp.swpages);
551: (void)printf("%11u swap pages in use\n", uvmexp.swpginuse);
552: (void)printf("%11u total anon's in system\n", uvmexp.nanon);
553: (void)printf("%11u free anon's\n", uvmexp.nfreeanon);
1.32 art 554:
555: /* stat counters */
1.35 hugh 556: (void)printf("%11u page faults\n", uvmexp.faults);
557: (void)printf("%11u traps\n", uvmexp.traps);
558: (void)printf("%11u interrupts\n", uvmexp.intrs);
559: (void)printf("%11u cpu context switches\n", uvmexp.swtch);
1.95 mickey 560: (void)printf("%11u fpu context switches\n", uvmexp.fpswtch);
1.35 hugh 561: (void)printf("%11u software interrupts\n", uvmexp.softs);
562: (void)printf("%11u syscalls\n", uvmexp.syscalls);
563: (void)printf("%11u pagein operations\n", uvmexp.pageins);
564: (void)printf("%11u swap ins\n", uvmexp.swapins);
565: (void)printf("%11u swap outs\n", uvmexp.swapouts);
566: (void)printf("%11u forks\n", uvmexp.forks);
567: (void)printf("%11u forks where vmspace is shared\n",
1.48 art 568: uvmexp.forks_sharevm);
1.97 pedro 569: (void)printf("%11u kernel map entries\n", uvmexp.kmapent);
1.32 art 570:
571: /* daemon counters */
1.64 deraadt 572: (void)printf("%11u number of times the pagedaemon woke up\n",
1.48 art 573: uvmexp.pdwoke);
1.35 hugh 574: (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs);
575: (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed);
576: (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans);
577: (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact);
578: (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy);
1.29 art 579:
1.56 angelos 580: if (nlistf == NULL && memf == NULL) {
1.52 angelos 581: size = sizeof(nchstats);
582: mib[0] = CTL_KERN;
583: mib[1] = KERN_NCHSTATS;
584: if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) {
1.56 angelos 585: warn("could not read kern.nchstats");
1.52 angelos 586: bzero(&nchstats, sizeof(nchstats));
587: }
1.56 angelos 588: } else {
589: kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
1.52 angelos 590: }
591:
1.1 deraadt 592: nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
593: nchstats.ncs_badhits + nchstats.ncs_falsehits +
594: nchstats.ncs_miss + nchstats.ncs_long;
1.112 naddy 595: (void)printf("%11lld total name lookups\n", nchtotal);
1.52 angelos 596: (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% "
597: "per-directory\n",
1.112 naddy 598: "", pct(nchstats.ncs_goodhits, nchtotal),
599: pct(nchstats.ncs_neghits, nchtotal),
600: pct(nchstats.ncs_pass2, nchtotal));
1.35 hugh 601: (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
1.112 naddy 602: pct(nchstats.ncs_badhits, nchtotal),
603: pct(nchstats.ncs_falsehits, nchtotal),
604: pct(nchstats.ncs_long, nchtotal));
1.52 angelos 605:
1.56 angelos 606: if (nlistf == NULL && memf == NULL) {
1.52 angelos 607: size = sizeof(nselcoll);
608: mib[0] = CTL_KERN;
609: mib[1] = KERN_NSELCOLL;
610: if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) {
1.56 angelos 611: warn("could not read kern.nselcoll");
1.52 angelos 612: nselcoll = 0;
613: }
1.56 angelos 614: } else {
615: kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll));
1.52 angelos 616: }
1.50 art 617: (void)printf("%11d select collisions\n", nselcoll);
1.1 deraadt 618: }
619:
620: void
1.72 deraadt 621: doforkst(void)
1.1 deraadt 622: {
623: struct forkstat fks;
1.52 angelos 624: size_t size;
625: int mib[2];
626:
1.56 angelos 627: if (nlistf == NULL && memf == NULL) {
1.52 angelos 628: size = sizeof(struct forkstat);
629: mib[0] = CTL_KERN;
630: mib[1] = KERN_FORKSTAT;
631: if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) {
1.56 angelos 632: warn("could not read kern.forkstat");
1.52 angelos 633: bzero(&fks, sizeof(struct forkstat));
634: }
1.56 angelos 635: } else {
636: kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
1.52 angelos 637: }
1.1 deraadt 638:
639: (void)printf("%d forks, %d pages, average %.2f\n",
640: fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
641: (void)printf("%d vforks, %d pages, average %.2f\n",
1.72 deraadt 642: fks.cntvfork, fks.sizvfork,
643: (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1));
1.12 tholo 644: (void)printf("%d rforks, %d pages, average %.2f\n",
1.72 deraadt 645: fks.cntrfork, fks.sizrfork,
646: (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1));
1.36 niklas 647: (void)printf("%d kthread creations, %d pages, average %.2f\n",
1.72 deraadt 648: fks.cntkthread, fks.sizkthread,
649: (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1));
1.1 deraadt 650: }
651:
652: void
1.72 deraadt 653: dkstats(void)
1.1 deraadt 654: {
1.62 mpech 655: int dn, state;
1.1 deraadt 656: double etime;
657:
1.6 tholo 658: /* Calculate disk stat deltas. */
659: dkswap();
1.1 deraadt 660: etime = 0;
661: for (state = 0; state < CPUSTATES; ++state) {
1.6 tholo 662: etime += cur.cp_time[state];
1.1 deraadt 663: }
664: if (etime == 0)
665: etime = 1;
666: etime /= hz;
1.84 deraadt 667: etime /= ncpu;
1.1 deraadt 668: for (dn = 0; dn < dk_ndrive; ++dn) {
1.6 tholo 669: if (!dk_select[dn])
1.1 deraadt 670: continue;
1.82 tedu 671: (void)printf("%3.0f ",
672: (cur.dk_rxfer[dn] + cur.dk_rxfer[dn]) / etime);
1.1 deraadt 673: }
674: }
675:
676: void
1.72 deraadt 677: cpustats(void)
1.1 deraadt 678: {
1.102 deraadt 679: double percent, total;
1.62 mpech 680: int state;
1.1 deraadt 681:
682: total = 0;
683: for (state = 0; state < CPUSTATES; ++state)
1.6 tholo 684: total += cur.cp_time[state];
1.1 deraadt 685: if (total)
1.101 otto 686: percent = 100 / total;
1.1 deraadt 687: else
1.101 otto 688: percent = 0;
689: (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * percent);
690: (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * percent);
691: (void)printf("%2.0f", cur.cp_time[CP_IDLE] * percent);
1.1 deraadt 692: }
693:
694: void
1.72 deraadt 695: dointr(void)
1.74 art 696: {
1.102 deraadt 697: int nintr, mib[4], i;
698: char intrname[128];
699: u_int64_t inttotal;
1.74 art 700: time_t uptime;
701: size_t siz;
702:
1.93 miod 703: if (nlistf != NULL || memf != NULL) {
704: errx(1,
705: "interrupt statistics are only available on live kernels");
706: }
707:
1.74 art 708: uptime = getuptime();
709:
710: mib[0] = CTL_KERN;
711: mib[1] = KERN_INTRCNT;
712: mib[2] = KERN_INTRCNT_NUM;
713: siz = sizeof(nintr);
714: if (sysctl(mib, 3, &nintr, &siz, NULL, 0) < 0) {
715: warnx("could not read kern.intrcnt.nintrcnt");
716: return;
717: }
718:
1.91 deraadt 719: (void)printf("%-16s %20s %8s\n", "interrupt", "total", "rate");
1.87 aaron 720:
1.74 art 721: inttotal = 0;
722: for (i = 0; i < nintr; i++) {
1.87 aaron 723: char name[128];
1.90 deraadt 724: u_quad_t cnt;
1.87 aaron 725: int vector;
1.74 art 726:
727: mib[0] = CTL_KERN;
728: mib[1] = KERN_INTRCNT;
729: mib[2] = KERN_INTRCNT_NAME;
730: mib[3] = i;
1.87 aaron 731: siz = sizeof(name);
732: if (sysctl(mib, 4, name, &siz, NULL, 0) < 0) {
1.74 art 733: warnx("could not read kern.intrcnt.name.%d", i);
1.87 aaron 734: return;
735: }
736:
737: mib[0] = CTL_KERN;
738: mib[1] = KERN_INTRCNT;
739: mib[2] = KERN_INTRCNT_VECTOR;
740: mib[3] = i;
741: siz = sizeof(vector);
742: if (sysctl(mib, 4, &vector, &siz, NULL, 0) < 0) {
743: strlcpy(intrname, name, sizeof(intrname));
744: } else {
745: snprintf(intrname, sizeof(intrname), "irq%d/%s",
746: vector, name);
1.74 art 747: }
748:
749: mib[0] = CTL_KERN;
750: mib[1] = KERN_INTRCNT;
751: mib[2] = KERN_INTRCNT_CNT;
752: mib[3] = i;
753: siz = sizeof(cnt);
754: if (sysctl(mib, 4, &cnt, &siz, NULL, 0) < 0) {
1.75 grange 755: warnx("could not read kern.intrcnt.cnt.%d", i);
1.90 deraadt 756: return;
1.74 art 757: }
1.90 deraadt 758:
1.87 aaron 759: if (cnt || zflag)
1.91 deraadt 760: (void)printf("%-16.16s %20llu %8llu\n", intrname,
1.90 deraadt 761: cnt, cnt / uptime);
1.74 art 762: inttotal += cnt;
763: }
764:
1.91 deraadt 765: (void)printf("%-16s %20llu %8llu\n", "Total", inttotal,
1.90 deraadt 766: inttotal / uptime);
1.1 deraadt 767: }
768:
769: /*
770: * These names are defined in <sys/malloc.h>.
771: */
1.101 otto 772: const char *kmemnames[] = INITKMEMNAMES;
1.1 deraadt 773:
774: void
1.72 deraadt 775: domem(void)
1.1 deraadt 776: {
1.102 deraadt 777: struct kmembuckets buckets[MINBUCKET + 16], *kp;
778: struct kmemstats kmemstats[M_LAST], *ks;
779: int i, j, len, size, first, mib[4];
1.50 art 780: u_long totuse = 0, totfree = 0;
1.102 deraadt 781: char buf[BUFSIZ], *bufp, *ap;
1.50 art 782: quad_t totreq = 0;
1.101 otto 783: const char *name;
1.50 art 784: size_t siz;
785:
786: if (memf == NULL && nlistf == NULL) {
1.53 deraadt 787: mib[0] = CTL_KERN;
1.50 art 788: mib[1] = KERN_MALLOCSTATS;
789: mib[2] = KERN_MALLOC_BUCKETS;
790: siz = sizeof(buf);
791: if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) {
1.56 angelos 792: warnx("could not read kern.malloc.buckets");
1.50 art 793: return;
794: }
795:
796: bufp = buf;
797: mib[2] = KERN_MALLOC_BUCKET;
798: siz = sizeof(struct kmembuckets);
799: i = 0;
800: while ((ap = strsep(&bufp, ",")) != NULL) {
1.53 deraadt 801: mib[3] = atoi(ap);
1.50 art 802:
803: if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz,
1.53 deraadt 804: NULL, 0) < 0) {
1.56 angelos 805: warn("could not read kern.malloc.bucket.%d", mib[3]);
1.50 art 806: return;
807: }
808: i++;
809: }
810: } else {
1.53 deraadt 811: kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
1.50 art 812: }
1.1 deraadt 813:
1.18 kstailey 814: for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16;
815: i++, kp++) {
1.65 art 816: if (kp->kb_calls == 0 && !verbose)
1.1 deraadt 817: continue;
1.18 kstailey 818: if (first) {
819: (void)printf("Memory statistics by bucket size\n");
820: (void)printf(
1.50 art 821: " Size In Use Free Requests HighWater Couldfree\n");
1.18 kstailey 822: first = 0;
823: }
1.1 deraadt 824: size = 1 << i;
1.60 art 825: (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size,
826: (unsigned long long)(kp->kb_total - kp->kb_totalfree),
827: (unsigned long long)kp->kb_totalfree,
828: (unsigned long long)kp->kb_calls,
829: (unsigned long long)kp->kb_highwat,
830: (unsigned long long)kp->kb_couldfree);
1.1 deraadt 831: totfree += size * kp->kb_totalfree;
1.18 kstailey 832: }
833:
834: /*
835: * If kmem statistics are not being gathered by the kernel,
836: * first will still be 1.
837: */
838: if (first) {
839: printf(
840: "Kmem statistics are not being gathered by the kernel.\n");
841: return;
1.1 deraadt 842: }
843:
1.52 angelos 844: if (memf == NULL && nlistf == NULL) {
845: bzero(kmemstats, sizeof(kmemstats));
846: for (i = 0; i < M_LAST; i++) {
1.53 deraadt 847: mib[0] = CTL_KERN;
1.52 angelos 848: mib[1] = KERN_MALLOCSTATS;
849: mib[2] = KERN_MALLOC_KMEMSTATS;
850: mib[3] = i;
851: siz = sizeof(struct kmemstats);
852:
1.103 deraadt 853: /*
1.52 angelos 854: * Skip errors -- these are presumed to be unallocated
855: * entries.
856: */
857: if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0)
858: continue;
859: }
860: } else {
861: kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
862: }
863:
1.1 deraadt 864: (void)printf("\nMemory usage type by bucket size\n");
865: (void)printf(" Size Type(s)\n");
866: kp = &buckets[MINBUCKET];
867: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
868: if (kp->kb_calls == 0)
869: continue;
870: first = 1;
871: len = 8;
872: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
873: if (ks->ks_calls == 0)
874: continue;
875: if ((ks->ks_size & j) == 0)
876: continue;
877: name = kmemnames[i] ? kmemnames[i] : "undefined";
878: len += 2 + strlen(name);
879: if (first)
880: printf("%8d %s", j, name);
881: else
882: printf(",");
883: if (len >= 80) {
884: printf("\n\t ");
885: len = 10 + strlen(name);
886: }
887: if (!first)
888: printf(" %s", name);
889: first = 0;
890: }
891: printf("\n");
892: }
893:
894: (void)printf(
1.26 deraadt 895: "\nMemory statistics by type Type Kern\n");
1.1 deraadt 896: (void)printf(
1.26 deraadt 897: " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
1.1 deraadt 898: for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
899: if (ks->ks_calls == 0)
900: continue;
1.24 mickey 901: (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
1.1 deraadt 902: kmemnames[i] ? kmemnames[i] : "undefined",
903: ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
904: (ks->ks_maxused + 1023) / 1024,
905: (ks->ks_limit + 1023) / 1024, ks->ks_calls,
906: ks->ks_limblocks, ks->ks_mapblocks);
907: first = 1;
908: for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
909: if ((ks->ks_size & j) == 0)
910: continue;
911: if (first)
912: printf(" %d", j);
913: else
914: printf(",%d", j);
915: first = 0;
916: }
917: printf("\n");
918: totuse += ks->ks_memuse;
919: totreq += ks->ks_calls;
920: }
921: (void)printf("\nMemory Totals: In Use Free Requests\n");
1.50 art 922: (void)printf(" %7luK %6luK %8qu\n",
1.1 deraadt 923: (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
924: }
925:
1.54 art 926: static void
927: print_pool(struct pool *pp, char *name)
928: {
929: static int first = 1;
1.102 deraadt 930: char maxp[32];
1.54 art 931: int ovflw;
932:
933: if (first) {
934: (void)printf("Memory resource pool statistics\n");
935: (void)printf(
936: "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n",
937: "Name",
938: "Size",
939: "Requests",
940: "Fail",
1.110 otto 941: "InUse",
1.54 art 942: "Pgreq",
943: "Pgrel",
944: "Npage",
945: "Hiwat",
946: "Minpg",
947: "Maxpg",
948: "Idle");
949: first = 0;
950: }
1.65 art 951:
952: /* Skip unused pools unless verbose output. */
953: if (pp->pr_nget == 0 && !verbose)
954: return;
955:
1.54 art 956: if (pp->pr_maxpages == UINT_MAX)
1.69 deraadt 957: snprintf(maxp, sizeof maxp, "inf");
1.54 art 958: else
1.69 deraadt 959: snprintf(maxp, sizeof maxp, "%u", pp->pr_maxpages);
1.54 art 960: /*
961: * Print single word. `ovflow' is number of characters didn't fit
962: * on the last word. `fmt' is a format string to print this word.
963: * It must contain asterisk for field width. `width' is a width
964: * occupied by this word. `fixed' is a number of constant chars in
965: * `fmt'. `val' is a value to be printed using format string `fmt'.
966: */
967: #define PRWORD(ovflw, fmt, width, fixed, val) do { \
968: (ovflw) += printf((fmt), \
969: (width) - (fixed) - (ovflw) > 0 ? \
970: (width) - (fixed) - (ovflw) : 0, \
971: (val)) - (width); \
972: if ((ovflw) < 0) \
973: (ovflw) = 0; \
974: } while (/* CONSTCOND */0)
975:
976: ovflw = 0;
977: PRWORD(ovflw, "%-*s", 11, 0, name);
978: PRWORD(ovflw, " %*u", 5, 1, pp->pr_size);
979: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget);
980: PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail);
1.110 otto 981: PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget - pp->pr_nput);
1.54 art 982: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc);
983: PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree);
984: PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages);
985: PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat);
986: PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages);
987: PRWORD(ovflw, " %*s", 6, 1, maxp);
1.103 deraadt 988: PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle);
1.54 art 989: }
990:
1.55 art 991: static void dopool_kvm(void);
992: static void dopool_sysctl(void);
993:
1.48 art 994: void
995: dopool(void)
996: {
1.55 art 997: if (nlistf == NULL && memf == NULL)
998: dopool_sysctl();
999: else
1000: dopool_kvm();
1001: }
1002:
1003: void
1004: dopool_sysctl(void)
1005: {
1.102 deraadt 1006: int mib[4], npools, i, kmfp;
1.63 art 1007: long total = 0, inuse = 0;
1.55 art 1008: struct pool pool;
1009: size_t size;
1010:
1011: mib[0] = CTL_KERN;
1012: mib[1] = KERN_POOL;
1013: mib[2] = KERN_POOL_NPOOLS;
1014: size = sizeof(npools);
1015: if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) {
1.92 pedro 1016: warn("can't figure out number of pools in kernel");
1.55 art 1017: return;
1018: }
1019:
1020: for (i = 1; npools; i++) {
1021: char name[32];
1022:
1023: mib[0] = CTL_KERN;
1024: mib[1] = KERN_POOL;
1025: mib[2] = KERN_POOL_POOL;
1026: mib[3] = i;
1027: size = sizeof(struct pool);
1028: if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) {
1029: if (errno == ENOENT)
1030: continue;
1.92 pedro 1031: warn("error getting pool");
1.55 art 1032: return;
1033: }
1034: npools--;
1035: mib[2] = KERN_POOL_NAME;
1036: size = sizeof(name);
1037: if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) {
1.92 pedro 1038: warn("error getting pool name");
1.55 art 1039: return;
1040: }
1041: print_pool(&pool, name);
1.63 art 1042:
1043: inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size;
1044: total += pool.pr_npages * getpagesize(); /* XXX */
1.55 art 1045: }
1.63 art 1046:
1047: inuse /= 1024;
1048: total /= 1024;
1.107 deraadt 1049: if (nlistf == NULL && memf == NULL) {
1050: int mib[] = { CTL_VM, VM_KMPAGESFREE };
1051: size_t size = sizeof(kmfp);
1052:
1053: if (sysctl(mib, 2, &kmfp, &size, NULL, 0) < 0) {
1054: warn("could not read uvm.kmpagesfree");
1055: return;
1056: }
1057: } else {
1058: kread(X_KMPAGESFREE, &kmfp, sizeof(kmfp));
1059: }
1060: total += kmfp * (getpagesize() / 1024);
1.63 art 1061: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1062: inuse, total, (double)(100 * inuse) / total);
1.55 art 1063: }
1064:
1065: void
1066: dopool_kvm(void)
1067: {
1.48 art 1068: TAILQ_HEAD(,pool) pool_head;
1069: struct pool pool, *pp = &pool;
1.102 deraadt 1070: long total = 0, inuse = 0;
1071: u_long addr;
1.98 mickey 1072: int kmfp;
1.48 art 1073:
1074: kread(X_POOLHEAD, &pool_head, sizeof(pool_head));
1.102 deraadt 1075: addr = (u_long)TAILQ_FIRST(&pool_head);
1.48 art 1076:
1.55 art 1077: while (addr != 0) {
1.54 art 1078: char name[32];
1.56 angelos 1079:
1.48 art 1080: if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) {
1081: (void)fprintf(stderr,
1082: "vmstat: pool chain trashed: %s\n",
1083: kvm_geterr(kd));
1084: exit(1);
1085: }
1.102 deraadt 1086: if (kvm_read(kd, (u_long)pp->pr_wchan, name, sizeof name) < 0) {
1.48 art 1087: (void)fprintf(stderr,
1088: "vmstat: pool name trashed: %s\n",
1089: kvm_geterr(kd));
1090: exit(1);
1091: }
1.56 angelos 1092:
1.48 art 1093: name[31] = '\0';
1094:
1.54 art 1095: print_pool(pp, name);
1.48 art 1096:
1097: inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size;
1.63 art 1098: total += pp->pr_npages * getpagesize(); /* XXX */
1.56 angelos 1099:
1.102 deraadt 1100: addr = (u_long)TAILQ_NEXT(pp, pr_poollist);
1.48 art 1101: }
1102:
1103: inuse /= 1024;
1104: total /= 1024;
1.107 deraadt 1105: kread(X_KMPAGESFREE, &kmfp, sizeof(kmfp));
1106: total += kmfp * (getpagesize() / 1024);
1.48 art 1107: printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n",
1108: inuse, total, (double)(100 * inuse) / total);
1109: }
1110:
1.1 deraadt 1111: /*
1112: * kread reads something from the kernel, given its nlist index.
1113: */
1114: void
1.72 deraadt 1115: kread(int nlx, void *addr, size_t size)
1.1 deraadt 1116: {
1117: char *sym;
1118:
1119: if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
1120: sym = namelist[nlx].n_name;
1121: if (*sym == '_')
1122: ++sym;
1.50 art 1123: errx(1, "symbol %s not defined", sym);
1.1 deraadt 1124: }
1125: if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
1126: sym = namelist[nlx].n_name;
1127: if (*sym == '_')
1128: ++sym;
1.50 art 1129: errx(1, "%s: %s", sym, kvm_geterr(kd));
1.1 deraadt 1130: }
1131: }
1132:
1133: void
1.72 deraadt 1134: usage(void)
1.1 deraadt 1135: {
1.88 jmc 1136: (void)fprintf(stderr, "usage: %s [-fimstvz] [-c count] [-M core] "
1.109 sobrado 1137: "[-N system] [-w wait] [disk ...]\n", __progname);
1.1 deraadt 1138: exit(1);
1139: }
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