/* $NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $ */ /* $OpenBSD: vmstat.c,v 1.63 2002/01/15 22:40:38 art Exp $ */ /* * Copyright (c) 1980, 1986, 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1980, 1986, 1991, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93"; #else static char rcsid[] = "$NetBSD: vmstat.c,v 1.29.4.1 1996/06/05 00:21:05 cgd Exp $"; #endif #endif /* not lint */ #define __POOL_EXPOSE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "dkstats.h" #include #include struct nlist namelist[] = { #define X_UVMEXP 0 { "_uvmexp" }, #define X_BOOTTIME 1 { "_boottime" }, #define X_NCHSTATS 2 { "_nchstats" }, #define X_INTRNAMES 3 { "_intrnames" }, #define X_EINTRNAMES 4 { "_eintrnames" }, #define X_INTRCNT 5 { "_intrcnt" }, #define X_EINTRCNT 6 { "_eintrcnt" }, #define X_KMEMSTAT 7 { "_kmemstats" }, #define X_KMEMBUCKETS 8 { "_bucket" }, #define X_ALLEVENTS 9 { "_allevents" }, #define X_FORKSTAT 10 { "_forkstat" }, #define X_POOLHEAD 11 { "_pool_head" }, #define X_NSELCOLL 12 { "_nselcoll" }, #define X_END 13 #if defined(__i386__) #define X_INTRHAND (X_END) { "_intrhand" }, #define X_INTRSTRAY (X_END+1) { "_intrstray" }, #endif { "" }, }; /* Objects defined in dkstats.c */ extern struct _disk cur; extern char **dr_name; extern int *dk_select, dk_ndrive; struct uvmexp uvmexp, ouvmexp; int ndrives; int winlines = 20; kvm_t *kd; #define FORKSTAT 0x01 #define INTRSTAT 0x02 #define MEMSTAT 0x04 #define SUMSTAT 0x08 #define TIMESTAT 0x10 #define VMSTAT 0x20 void cpustats __P((void)); void dkstats __P((void)); void dointr __P((void)); void domem __P((void)); void dopool __P((void)); void dosum __P((void)); void dovmstat __P((u_int, int)); void kread __P((int, void *, size_t)); void usage __P((void)); void dotimes __P((void)); void doforkst __P((void)); void printhdr __P((void)); char **choosedrives __P((char **)); /* Namelist and memory file names. */ char *nlistf, *memf; extern char *__progname; int main(argc, argv) int argc; char **argv; { extern int optind; extern char *optarg; int c, todo; u_int interval; int reps; char errbuf[_POSIX2_LINE_MAX]; interval = reps = todo = 0; while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != -1) { switch (c) { case 'c': reps = atoi(optarg); break; case 'f': todo |= FORKSTAT; break; case 'i': todo |= INTRSTAT; break; case 'M': memf = optarg; break; case 'm': todo |= MEMSTAT; break; case 'N': nlistf = optarg; break; case 's': todo |= SUMSTAT; break; case 't': todo |= TIMESTAT; break; case 'w': interval = atoi(optarg); break; case '?': default: usage(); } } argc -= optind; argv += optind; if (todo == 0) todo = VMSTAT; if (nlistf != NULL || memf != NULL) { setegid(getgid()); setgid(getgid()); } /* * Discard setgid privileges if not the running kernel so that bad * guys can't print interesting stuff from kernel memory. */ #if notyet if (nlistf != NULL || memf != NULL) { #endif kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); if (kd == 0) errx(1, "kvm_openfiles: %s", errbuf); if ((c = kvm_nlist(kd, namelist)) != 0) { setgid(getgid()); setegid(getegid()); if (c > 0) { (void)fprintf(stderr, "%s: undefined symbols:", __progname); for (c = 0; c < sizeof(namelist)/sizeof(namelist[0]); c++) if (namelist[c].n_type == 0) fprintf(stderr, " %s", namelist[c].n_name); (void)fputc('\n', stderr); exit(1); } else errx(1, "kvm_nlist: %s", kvm_geterr(kd)); } #ifdef notyet } #endif /* notyet */ setegid(getegid()); setgid(getgid()); if (todo & VMSTAT) { struct winsize winsize; dkinit(0); /* Initialize disk stats, no disks selected. */ argv = choosedrives(argv); /* Select disks. */ winsize.ws_row = 0; (void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); if (winsize.ws_row > 0) winlines = winsize.ws_row; } #define BACKWARD_COMPATIBILITY #ifdef BACKWARD_COMPATIBILITY if (*argv) { interval = atoi(*argv); if (*++argv) reps = atoi(*argv); } #endif if (interval) { if (!reps) reps = -1; } else if (reps) interval = 1; if (todo & FORKSTAT) doforkst(); if (todo & MEMSTAT) { domem(); dopool(); } if (todo & SUMSTAT) dosum(); if (todo & TIMESTAT) dotimes(); if (todo & INTRSTAT) dointr(); if (todo & VMSTAT) dovmstat(interval, reps); exit(0); } char ** choosedrives(argv) char **argv; { int i; /* * Choose drives to be displayed. Priority goes to (in order) drives * supplied as arguments, default drives. If everything isn't filled * in and there are drives not taken care of, display the first few * that fit. */ #define BACKWARD_COMPATIBILITY for (ndrives = 0; *argv; ++argv) { #ifdef BACKWARD_COMPATIBILITY if (isdigit(**argv)) break; #endif for (i = 0; i < dk_ndrive; i++) { if (strcmp(dr_name[i], *argv)) continue; dk_select[i] = 1; ++ndrives; break; } } for (i = 0; i < dk_ndrive && ndrives < 4; i++) { if (dk_select[i]) continue; dk_select[i] = 1; ++ndrives; } return(argv); } time_t getuptime() { static time_t now; static struct timeval boottime; time_t uptime; int mib[2]; size_t size; if (boottime.tv_sec == 0) { if (nlistf == NULL && memf == NULL) { size = sizeof(boottime); mib[0] = CTL_KERN; mib[1] = KERN_BOOTTIME; if (sysctl(mib, 2, &boottime, &size, NULL, 0) < 0) { warn("could not get kern.boottime"); bzero(&boottime, sizeof(boottime)); } } else { kread(X_BOOTTIME, &boottime, sizeof(boottime)); } } (void)time(&now); uptime = now - boottime.tv_sec; if (uptime <= 0 || uptime > 60*60*24*365*10) errx(1, "time makes no sense; namelist must be wrong"); return(uptime); } int hz, hdrcnt; void dovmstat(interval, reps) u_int interval; int reps; { struct vmtotal total; time_t uptime, halfuptime; void needhdr(); int mib[2]; struct clockinfo clkinfo; size_t size; uptime = getuptime(); halfuptime = uptime / 2; (void)signal(SIGCONT, needhdr); mib[0] = CTL_KERN; mib[1] = KERN_CLOCKRATE; size = sizeof(clkinfo); if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) { warn("could not read kern.clockrate"); return; } hz = clkinfo.stathz; for (hdrcnt = 1;;) { if (!--hdrcnt) printhdr(); /* Read new disk statistics */ dkreadstats(); if (nlistf == NULL && memf == NULL) { size = sizeof(struct uvmexp); mib[0] = CTL_VM; mib[1] = VM_UVMEXP; if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) { warn("could not get vm.uvmexp"); bzero(&uvmexp, sizeof(struct uvmexp)); } } else { kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp)); } size = sizeof(total); mib[0] = CTL_VM; mib[1] = VM_METER; if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) { warn("could not read vm.vmmeter"); bzero(&total, sizeof(total)); } (void)printf("%2u%2u%2u", total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); #define rate(x) (((x) + halfuptime) / uptime) /* round */ #define pgtok(a) ((a) * ((int)uvmexp.pagesize >> 10)) (void)printf("%7u%7u ", pgtok(total.t_avm), pgtok(total.t_free)); (void)printf("%4u ", rate(uvmexp.faults - ouvmexp.faults)); (void)printf("%3u ", rate(uvmexp.pdreact - ouvmexp.pdreact)); (void)printf("%3u ", rate(uvmexp.pageins - ouvmexp.pageins)); (void)printf("%3u %3u ", rate(uvmexp.pdpageouts - ouvmexp.pdpageouts), 0); (void)printf("%3u ", rate(uvmexp.pdscans - ouvmexp.pdscans)); dkstats(); (void)printf("%4u %4u %3u ", rate(uvmexp.intrs - ouvmexp.intrs), rate(uvmexp.syscalls - ouvmexp.syscalls), rate(uvmexp.swtch - ouvmexp.swtch)); cpustats(); (void)printf("\n"); (void)fflush(stdout); if (reps >= 0 && --reps <= 0) break; ouvmexp = uvmexp; uptime = interval; /* * We round upward to avoid losing low-frequency events * (i.e., >= 1 per interval but < 1 per second). */ halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2; (void)sleep(interval); } } void printhdr() { int i; (void)printf(" procs memory page%*s", 20, ""); if (ndrives > 0) (void)printf("%s %*sfaults cpu\n", ((ndrives > 1) ? "disks" : "disk"), ((ndrives > 1) ? ndrives * 3 - 4 : 0), ""); else (void)printf("%*s faults cpu\n", ndrives * 3, ""); (void)printf(" r b w avm fre flt re pi po fr sr "); for (i = 0; i < dk_ndrive; i++) if (dk_select[i]) (void)printf("%c%c ", dr_name[i][0], dr_name[i][strlen(dr_name[i]) - 1]); (void)printf(" in sy cs us sy id\n"); hdrcnt = winlines - 2; } /* * Force a header to be prepended to the next output. */ void needhdr() { hdrcnt = 1; } void dotimes() { u_int pgintime, rectime; int mib[2]; size_t size; /* XXX Why are these set to 0 ? This doesn't look right. */ pgintime = 0; rectime = 0; if (nlistf == NULL && memf == NULL) { size = sizeof(struct uvmexp); mib[0] = CTL_VM; mib[1] = VM_UVMEXP; if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) { warn("could not read vm.uvmexp"); bzero(&uvmexp, sizeof(struct uvmexp)); } } else { kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp)); } (void)printf("%u reactivates, %u total time (usec)\n", uvmexp.pdreact, rectime); (void)printf("average: %u usec / reclaim\n", rectime / uvmexp.pdreact); (void)printf("\n"); (void)printf("%u page ins, %u total time (msec)\n", uvmexp.pageins, pgintime / 10); (void)printf("average: %8.1f msec / page in\n", pgintime / (uvmexp.pageins * 10.0)); } int pct(top, bot) long top, bot; { long ans; if (bot == 0) return(0); ans = (quad_t)top * 100 / bot; return (ans); } #define PCT(top, bot) pct((long)(top), (long)(bot)) void dosum() { struct nchstats nchstats; long nchtotal; size_t size; int mib[2], nselcoll; if (nlistf == NULL && memf == NULL) { size = sizeof(struct uvmexp); mib[0] = CTL_VM; mib[1] = VM_UVMEXP; if (sysctl(mib, 2, &uvmexp, &size, NULL, 0) < 0) { warn("could not read vm.uvmexp"); bzero(&uvmexp, sizeof(struct uvmexp)); } } else { kread(X_UVMEXP, &uvmexp, sizeof(struct uvmexp)); } /* vm_page constants */ (void)printf("%11u bytes per page\n", uvmexp.pagesize); /* vm_page counters */ (void)printf("%11u pages managed\n", uvmexp.npages); (void)printf("%11u pages free\n", uvmexp.free); (void)printf("%11u pages active\n", uvmexp.active); (void)printf("%11u pages inactive\n", uvmexp.inactive); (void)printf("%11u pages being paged out\n", uvmexp.paging); (void)printf("%11u pages wired\n", uvmexp.wired); (void)printf("%11u pages reserved for pagedaemon\n", uvmexp.reserve_pagedaemon); (void)printf("%11u pages reserved for kernel\n", uvmexp.reserve_kernel); /* swap */ (void)printf("%11u swap pages\n", uvmexp.swpages); (void)printf("%11u swap pages in use\n", uvmexp.swpginuse); (void)printf("%11u total anon's in system\n", uvmexp.nanon); (void)printf("%11u free anon's\n", uvmexp.nfreeanon); /* stat counters */ (void)printf("%11u page faults\n", uvmexp.faults); (void)printf("%11u traps\n", uvmexp.traps); (void)printf("%11u interrupts\n", uvmexp.intrs); (void)printf("%11u cpu context switches\n", uvmexp.swtch); (void)printf("%11u software interrupts\n", uvmexp.softs); (void)printf("%11u syscalls\n", uvmexp.syscalls); (void)printf("%11u pagein operations\n", uvmexp.pageins); (void)printf("%11u swap ins\n", uvmexp.swapins); (void)printf("%11u swap outs\n", uvmexp.swapouts); (void)printf("%11u forks\n", uvmexp.forks); (void)printf("%11u forks where vmspace is shared\n", uvmexp.forks_sharevm); /* daemon counters */ (void)printf("%11u number of times the pagedeamon woke up\n", uvmexp.pdwoke); (void)printf("%11u revolutions of the clock hand\n", uvmexp.pdrevs); (void)printf("%11u pages freed by pagedaemon\n", uvmexp.pdfreed); (void)printf("%11u pages scanned by pagedaemon\n", uvmexp.pdscans); (void)printf("%11u pages reactivated by pagedaemon\n", uvmexp.pdreact); (void)printf("%11u busy pages found by pagedaemon\n", uvmexp.pdbusy); if (nlistf == NULL && memf == NULL) { size = sizeof(nchstats); mib[0] = CTL_KERN; mib[1] = KERN_NCHSTATS; if (sysctl(mib, 2, &nchstats, &size, NULL, 0) < 0) { warn("could not read kern.nchstats"); bzero(&nchstats, sizeof(nchstats)); } } else { kread(X_NCHSTATS, &nchstats, sizeof(nchstats)); } nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + nchstats.ncs_badhits + nchstats.ncs_falsehits + nchstats.ncs_miss + nchstats.ncs_long; (void)printf("%11ld total name lookups\n", nchtotal); (void)printf("%11s cache hits (%d%% pos + %d%% neg) system %d%% " "per-directory\n", "", PCT(nchstats.ncs_goodhits, nchtotal), PCT(nchstats.ncs_neghits, nchtotal), PCT(nchstats.ncs_pass2, nchtotal)); (void)printf("%11s deletions %d%%, falsehits %d%%, toolong %d%%\n", "", PCT(nchstats.ncs_badhits, nchtotal), PCT(nchstats.ncs_falsehits, nchtotal), PCT(nchstats.ncs_long, nchtotal)); if (nlistf == NULL && memf == NULL) { size = sizeof(nselcoll); mib[0] = CTL_KERN; mib[1] = KERN_NSELCOLL; if (sysctl(mib, 2, &nselcoll, &size, NULL, 0) < 0) { warn("could not read kern.nselcoll"); nselcoll = 0; } } else { kread(X_NSELCOLL, &nselcoll, sizeof(nselcoll)); } (void)printf("%11d select collisions\n", nselcoll); } void doforkst() { struct forkstat fks; size_t size; int mib[2]; if (nlistf == NULL && memf == NULL) { size = sizeof(struct forkstat); mib[0] = CTL_KERN; mib[1] = KERN_FORKSTAT; if (sysctl(mib, 2, &fks, &size, NULL, 0) < 0) { warn("could not read kern.forkstat"); bzero(&fks, sizeof(struct forkstat)); } } else { kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); } (void)printf("%d forks, %d pages, average %.2f\n", fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); (void)printf("%d vforks, %d pages, average %.2f\n", fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / (fks.cntvfork ? fks.cntvfork : 1)); (void)printf("%d rforks, %d pages, average %.2f\n", fks.cntrfork, fks.sizrfork, (double)fks.sizrfork / (fks.cntrfork ? fks.cntrfork : 1)); (void)printf("%d kthread creations, %d pages, average %.2f\n", fks.cntkthread, fks.sizkthread, (double)fks.sizkthread / (fks.cntkthread ? fks.cntkthread : 1)); } void dkstats() { int dn, state; double etime; /* Calculate disk stat deltas. */ dkswap(); etime = 0; for (state = 0; state < CPUSTATES; ++state) { etime += cur.cp_time[state]; } if (etime == 0) etime = 1; etime /= hz; for (dn = 0; dn < dk_ndrive; ++dn) { if (!dk_select[dn]) continue; (void)printf("%2.0f ", cur.dk_xfer[dn] / etime); } } void cpustats() { int state; double pct, total; total = 0; for (state = 0; state < CPUSTATES; ++state) total += cur.cp_time[state]; if (total) pct = 100 / total; else pct = 0; (void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pct); (void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pct); (void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct); } #if defined(__i386__) /* To get struct intrhand */ #define _KERNEL #include #include #undef _KERNEL void dointr() { struct intrhand *intrhand[16], *ihp, ih; u_long inttotal = 0; time_t uptime; u_long intrstray[16]; char iname[17], fname[31]; int i; #if 0 int mib[2], l, incflag; size_t size; char *intrnames, *intrcount, *intrn, *intrc, *buf1, *buf2; #endif iname[16] = '\0'; uptime = getuptime(); (void)printf("interrupt total rate\n"); #if 0 /* XXX Something else is needed here....get on with it Theo! */ if (nlistf == NULL && memf == NULL) { mib[0] = CTL_MACHDEP; mib[1] = CPU_INTRNAMES; size = 0; if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) err(1, "could not get machdep.intrnames"); intrnames = calloc(size, sizeof(char)); if (intrnames == NULL) err(1, "could not allocate memory for interrupt names"); if (sysctl(mib, 2, intrnames, &size, NULL, 0) < 0) err(1, "could not get machdep.intrnames"); mib[1] = CPU_INTRCOUNT; size = 0; if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) err(1, "could not get machdep.intrcount"); intrcount = calloc(size, sizeof(char)); if (intrcount == NULL) err(1, "could not allocate memory for interrupt count"); if (sysctl(mib, 2, intrcount, &size, NULL, 0) < 0) err(1, "could not get machdep.intrcount"); mib[1] = CPU_INTRSTRAY; size = sizeof(intrstray); if (sysctl(mib, 2, intrstray, &size, NULL, 0) < 0) { warn("could not get machdep.intrstray"); bzero(intrstray, sizeof(intrstray)); } buf1 = intrnames; buf2 = intrcount; i = 0; while ((intrn = strsep(&buf1, ",/")) != NULL) { /* Find what the next delimiter is */ for (l = 0; buf2[l] != '\0'; l++) { if (buf2[l] == '/') { /* Don't increase the irq count */ incflag = 0; break; } else if (buf2[l] == ',') { incflag = 1; break; } } if ((intrc = strsep(&buf2, ",/")) == NULL) errx(1, "unexpected failure matching interrupts with usage counters"); /* Unused interrupt ? If so, skip this entry */ if (intrn[0] == '\0') { if (incflag) i++; continue; } snprintf(fname, sizeof fname, "irq%d/%s", i, intrn); printf("%-16.16s %10lu %8lu\n", fname, strtoul(intrc, NULL, 10), strtoul(intrc, NULL, 10) / uptime); inttotal += strtoul(intrc, NULL, 10); if (incflag) i++; } free(intrnames); free(intrcount); } else #endif /* 0 */ { kread(X_INTRHAND, intrhand, sizeof(intrhand)); kread(X_INTRSTRAY, intrstray, sizeof(intrstray)); for (i = 0; i < 16; i++) { ihp = intrhand[i]; while (ihp) { if (kvm_read(kd, (u_long)ihp, &ih, sizeof(ih)) != sizeof(ih)) errx(1, "vmstat: ih: %s", kvm_geterr(kd)); if (kvm_read(kd, (u_long)ih.ih_what, iname, 16) != 16) errx(1, "vmstat: ih_what: %s", kvm_geterr(kd)); snprintf(fname, sizeof fname, "irq%d/%s", i, iname); printf("%-16.16s %10lu %8lu\n", fname, ih.ih_count, ih.ih_count / uptime); inttotal += ih.ih_count; ihp = ih.ih_next; } } } for (i = 0; i < 16; i++) if (intrstray[i]) { printf("Stray irq %-2d %10lu %8lu\n", i, intrstray[i], intrstray[i] / uptime); inttotal += intrstray[i]; } printf("Total %10lu %8lu\n", inttotal, inttotal / uptime); } #else void dointr() { long *intrcnt, inttotal; time_t uptime; int nintr, inamlen; char *intrname; struct evcntlist allevents; struct evcnt evcnt, *evptr; struct device dev; uptime = getuptime(); nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; inamlen = namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value; intrcnt = malloc((size_t)nintr); intrname = malloc((size_t)inamlen); if (intrcnt == NULL || intrname == NULL) err(1, "malloc"); kread(X_INTRCNT, intrcnt, (size_t)nintr); kread(X_INTRNAMES, intrname, (size_t)inamlen); (void)printf("interrupt total rate\n"); inttotal = 0; nintr /= sizeof(long); while (--nintr >= 0) { if (*intrcnt) (void)printf("%-14s %12ld %8ld\n", intrname, *intrcnt, *intrcnt / uptime); intrname += strlen(intrname) + 1; inttotal += *intrcnt++; } kread(X_ALLEVENTS, &allevents, sizeof allevents); evptr = allevents.tqh_first; while (evptr) { if (kvm_read(kd, (long)evptr, (void *)&evcnt, sizeof evcnt) != sizeof evcnt) errx(1, "event chain trashed: %s", kvm_geterr(kd)); if (strcmp(evcnt.ev_name, "intr") == 0) { if (kvm_read(kd, (long)evcnt.ev_dev, (void *)&dev, sizeof dev) != sizeof dev) errx(1, "event chain trashed: %s", kvm_geterr(kd)); if (evcnt.ev_count) (void)printf("%-14s %12d %8ld\n", dev.dv_xname, evcnt.ev_count, (long)(evcnt.ev_count / uptime)); inttotal += evcnt.ev_count++; } evptr = evcnt.ev_list.tqe_next; } (void)printf("Total %12ld %8ld\n", inttotal, inttotal / uptime); } #endif /* * These names are defined in . */ char *kmemnames[] = INITKMEMNAMES; void domem() { struct kmembuckets *kp; struct kmemstats *ks; int i, j; int len, size, first; u_long totuse = 0, totfree = 0; quad_t totreq = 0; char *name; struct kmemstats kmemstats[M_LAST]; struct kmembuckets buckets[MINBUCKET + 16]; int mib[4]; size_t siz; char buf[BUFSIZ], *bufp, *ap; if (memf == NULL && nlistf == NULL) { mib[0] = CTL_KERN; mib[1] = KERN_MALLOCSTATS; mib[2] = KERN_MALLOC_BUCKETS; siz = sizeof(buf); if (sysctl(mib, 3, buf, &siz, NULL, 0) < 0) { warnx("could not read kern.malloc.buckets"); return; } bufp = buf; mib[2] = KERN_MALLOC_BUCKET; siz = sizeof(struct kmembuckets); i = 0; while ((ap = strsep(&bufp, ",")) != NULL) { mib[3] = atoi(ap); if (sysctl(mib, 4, &buckets[MINBUCKET + i], &siz, NULL, 0) < 0) { warn("could not read kern.malloc.bucket.%d", mib[3]); return; } i++; } } else { kread(X_KMEMBUCKETS, buckets, sizeof(buckets)); } for (first = 1, i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) { if (kp->kb_calls == 0) continue; if (first) { (void)printf("Memory statistics by bucket size\n"); (void)printf( " Size In Use Free Requests HighWater Couldfree\n"); first = 0; } size = 1 << i; (void)printf("%8d %8llu %6llu %18llu %7llu %10llu\n", size, (unsigned long long)(kp->kb_total - kp->kb_totalfree), (unsigned long long)kp->kb_totalfree, (unsigned long long)kp->kb_calls, (unsigned long long)kp->kb_highwat, (unsigned long long)kp->kb_couldfree); totfree += size * kp->kb_totalfree; } /* * If kmem statistics are not being gathered by the kernel, * first will still be 1. */ if (first) { printf( "Kmem statistics are not being gathered by the kernel.\n"); return; } if (memf == NULL && nlistf == NULL) { bzero(kmemstats, sizeof(kmemstats)); for (i = 0; i < M_LAST; i++) { mib[0] = CTL_KERN; mib[1] = KERN_MALLOCSTATS; mib[2] = KERN_MALLOC_KMEMSTATS; mib[3] = i; siz = sizeof(struct kmemstats); /* * Skip errors -- these are presumed to be unallocated * entries. */ if (sysctl(mib, 4, &kmemstats[i], &siz, NULL, 0) < 0) continue; } } else { kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats)); } (void)printf("\nMemory usage type by bucket size\n"); (void)printf(" Size Type(s)\n"); kp = &buckets[MINBUCKET]; for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) { if (kp->kb_calls == 0) continue; first = 1; len = 8; for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { if (ks->ks_calls == 0) continue; if ((ks->ks_size & j) == 0) continue; name = kmemnames[i] ? kmemnames[i] : "undefined"; len += 2 + strlen(name); if (first) printf("%8d %s", j, name); else printf(","); if (len >= 80) { printf("\n\t "); len = 10 + strlen(name); } if (!first) printf(" %s", name); first = 0; } printf("\n"); } (void)printf( "\nMemory statistics by type Type Kern\n"); (void)printf( " Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n"); for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) { if (ks->ks_calls == 0) continue; (void)printf("%14s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u", kmemnames[i] ? kmemnames[i] : "undefined", ks->ks_inuse, (ks->ks_memuse + 1023) / 1024, (ks->ks_maxused + 1023) / 1024, (ks->ks_limit + 1023) / 1024, ks->ks_calls, ks->ks_limblocks, ks->ks_mapblocks); first = 1; for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) { if ((ks->ks_size & j) == 0) continue; if (first) printf(" %d", j); else printf(",%d", j); first = 0; } printf("\n"); totuse += ks->ks_memuse; totreq += ks->ks_calls; } (void)printf("\nMemory Totals: In Use Free Requests\n"); (void)printf(" %7luK %6luK %8qu\n", (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); } static void print_pool(struct pool *pp, char *name) { static int first = 1; int ovflw; char maxp[32]; if (first) { (void)printf("Memory resource pool statistics\n"); (void)printf( "%-11s%5s%9s%5s%9s%6s%6s%6s%6s%6s%6s%5s\n", "Name", "Size", "Requests", "Fail", "Releases", "Pgreq", "Pgrel", "Npage", "Hiwat", "Minpg", "Maxpg", "Idle"); first = 0; } if (pp->pr_maxpages == UINT_MAX) sprintf(maxp, "inf"); else sprintf(maxp, "%u", pp->pr_maxpages); /* * Print single word. `ovflow' is number of characters didn't fit * on the last word. `fmt' is a format string to print this word. * It must contain asterisk for field width. `width' is a width * occupied by this word. `fixed' is a number of constant chars in * `fmt'. `val' is a value to be printed using format string `fmt'. */ #define PRWORD(ovflw, fmt, width, fixed, val) do { \ (ovflw) += printf((fmt), \ (width) - (fixed) - (ovflw) > 0 ? \ (width) - (fixed) - (ovflw) : 0, \ (val)) - (width); \ if ((ovflw) < 0) \ (ovflw) = 0; \ } while (/* CONSTCOND */0) ovflw = 0; PRWORD(ovflw, "%-*s", 11, 0, name); PRWORD(ovflw, " %*u", 5, 1, pp->pr_size); PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nget); PRWORD(ovflw, " %*lu", 5, 1, pp->pr_nfail); PRWORD(ovflw, " %*lu", 9, 1, pp->pr_nput); PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagealloc); PRWORD(ovflw, " %*lu", 6, 1, pp->pr_npagefree); PRWORD(ovflw, " %*d", 6, 1, pp->pr_npages); PRWORD(ovflw, " %*d", 6, 1, pp->pr_hiwat); PRWORD(ovflw, " %*d", 6, 1, pp->pr_minpages); PRWORD(ovflw, " %*s", 6, 1, maxp); PRWORD(ovflw, " %*lu\n", 5, 1, pp->pr_nidle); } static void dopool_kvm(void); static void dopool_sysctl(void); void dopool(void) { if (nlistf == NULL && memf == NULL) dopool_sysctl(); else dopool_kvm(); } void dopool_sysctl(void) { long total = 0, inuse = 0; struct pool pool; size_t size; int mib[4]; int npools, i; mib[0] = CTL_KERN; mib[1] = KERN_POOL; mib[2] = KERN_POOL_NPOOLS; size = sizeof(npools); if (sysctl(mib, 3, &npools, &size, NULL, 0) < 0) { printf("Can't figure out number of pools in kernel: %s\n", strerror(errno)); return; } for (i = 1; npools; i++) { char name[32]; mib[0] = CTL_KERN; mib[1] = KERN_POOL; mib[2] = KERN_POOL_POOL; mib[3] = i; size = sizeof(struct pool); if (sysctl(mib, 4, &pool, &size, NULL, 0) < 0) { if (errno == ENOENT) continue; printf("error getting pool: %s\n", strerror(errno)); return; } npools--; mib[2] = KERN_POOL_NAME; size = sizeof(name); if (sysctl(mib, 4, &name, &size, NULL, 0) < 0) { printf("error getting pool name: %s\n", strerror(errno)); return; } print_pool(&pool, name); inuse += (pool.pr_nget - pool.pr_nput) * pool.pr_size; total += pool.pr_npages * getpagesize(); /* XXX */ } inuse /= 1024; total /= 1024; printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", inuse, total, (double)(100 * inuse) / total); } void dopool_kvm(void) { long addr; long total = 0, inuse = 0; TAILQ_HEAD(,pool) pool_head; struct pool pool, *pp = &pool; kread(X_POOLHEAD, &pool_head, sizeof(pool_head)); addr = (long)TAILQ_FIRST(&pool_head); while (addr != 0) { char name[32]; if (kvm_read(kd, addr, (void *)pp, sizeof *pp) != sizeof *pp) { (void)fprintf(stderr, "vmstat: pool chain trashed: %s\n", kvm_geterr(kd)); exit(1); } if (kvm_read(kd, (long)pp->pr_wchan, name, sizeof name) < 0) { (void)fprintf(stderr, "vmstat: pool name trashed: %s\n", kvm_geterr(kd)); exit(1); } name[31] = '\0'; print_pool(pp, name); inuse += (pp->pr_nget - pp->pr_nput) * pp->pr_size; total += pp->pr_npages * getpagesize(); /* XXX */ addr = (long)TAILQ_NEXT(pp, pr_poollist); } inuse /= 1024; total /= 1024; printf("\nIn use %ldK, total allocated %ldK; utilization %.1f%%\n", inuse, total, (double)(100 * inuse) / total); } /* * kread reads something from the kernel, given its nlist index. */ void kread(nlx, addr, size) int nlx; void *addr; size_t size; { char *sym; if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) { sym = namelist[nlx].n_name; if (*sym == '_') ++sym; errx(1, "symbol %s not defined", sym); } if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { sym = namelist[nlx].n_name; if (*sym == '_') ++sym; errx(1, "%s: %s", sym, kvm_geterr(kd)); } } void usage() { (void)fprintf(stderr, "usage: %s [-fimst] [-c count] [-M core] " "[-N system] [-w wait] [disks]\n", __progname); exit(1); }