/* * 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. 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. * * @(#) Copyright (c) 1980, 1986, 1991, 1993 The Regents of the University of California. All rights reserved. * @(#)vmstat.c 8.1 (Berkeley) 6/6/93 * $FreeBSD: src/usr.bin/vmstat/vmstat.c,v 1.38.2.4 2001/07/31 19:52:41 tmm Exp $ */ #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 #include static struct nlist namelist[] = { #define X_BOOTTIME 0 { "_boottime", 0, 0, 0, 0 }, #define X_NCHSTATS 1 { "_nchstats", 0, 0, 0, 0 }, #define X_KMEMSTATISTICS 2 { "_kmemstatistics", 0, 0, 0, 0 }, #define X_ZLIST 3 { "_zlist", 0, 0, 0, 0 }, #ifdef notyet #define X_DEFICIT 4 { "_deficit", 0, 0, 0, 0 }, #define X_FORKSTAT 5 { "_forkstat", 0, 0, 0, 0 }, #define X_REC 6 { "_rectime", 0, 0, 0, 0 }, #define X_PGIN 7 { "_pgintime", 0, 0, 0, 0 }, #define X_XSTATS 8 { "_xstats", 0, 0, 0, 0 }, #define X_END 9 #else #define X_END 4 #endif { "", 0, 0, 0, 0 }, }; struct statinfo cur, last; int num_devices, maxshowdevs; long generation; struct device_selection *dev_select; int num_selected; struct devstat_match *matches; int num_matches = 0; int num_devices_specified, num_selections; long select_generation; char **specified_devices; devstat_select_mode select_mode; struct vmmeter vmm, ovmm; struct vmstats vms, ovms; int winlines = 20; int nflag = 0; int verbose = 0; kvm_t *kd; struct kinfo_cputime cp_time, old_cp_time, diff_cp_time; #define FORKSTAT 0x01 #define INTRSTAT 0x02 #define MEMSTAT 0x04 #define SUMSTAT 0x08 #define TIMESTAT 0x10 #define VMSTAT 0x20 #define ZMEMSTAT 0x40 static void cpustats(void); static void dointr(void); static void domem(void); static void dosum(void); static void dozmem(void); static void dovmstat(u_int, int); static void kread(int, void *, size_t); static void usage(void); static char **getdrivedata(char **); static long getuptime(void); static void needhdr(int); static long pct(long, long); #ifdef notyet static void dotimes(void); /* Not implemented */ static void doforkst(void); #endif static void printhdr(void); static void devstats(void); int main(int argc, char **argv) { int c, todo; u_int interval; /* milliseconds */ int reps; char *memf, *nlistf; char errbuf[_POSIX2_LINE_MAX]; memf = nlistf = NULL; interval = reps = todo = 0; maxshowdevs = 2; while ((c = getopt(argc, argv, "c:fiM:mN:n:p:stvw:z")) != -1) { switch (c) { case 'c': reps = atoi(optarg); break; case 'f': #ifdef notyet todo |= FORKSTAT; #else errx(EX_USAGE, "sorry, -f is not (re)implemented yet"); #endif break; case 'i': todo |= INTRSTAT; break; case 'M': memf = optarg; break; case 'm': todo |= MEMSTAT; break; case 'N': nlistf = optarg; break; case 'n': nflag = 1; maxshowdevs = atoi(optarg); if (maxshowdevs < 0) errx(1, "number of devices %d is < 0", maxshowdevs); break; case 'p': if (buildmatch(optarg, &matches, &num_matches) != 0) errx(1, "%s", devstat_errbuf); break; case 's': todo |= SUMSTAT; break; case 't': #ifdef notyet todo |= TIMESTAT; #else errx(EX_USAGE, "sorry, -t is not (re)implemented yet"); #endif break; case 'v': ++verbose; break; case 'w': interval = (u_int)(strtod(optarg, NULL) * 1000.0); break; case 'z': todo |= ZMEMSTAT; break; default: usage(); } } argc -= optind; argv += optind; if (todo == 0) todo = VMSTAT; /* * Discard setgid privileges if not the running kernel so that bad * guys can't print interesting stuff from kernel memory. */ if (nlistf != NULL || memf != NULL) setgid(getgid()); kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); if (kd == NULL) errx(1, "kvm_openfiles: %s", errbuf); if ((c = kvm_nlist(kd, namelist)) != 0) { if (c > 0) { warnx("undefined symbols:"); for (c = 0; c < (int)__arysize(namelist); c++) if (namelist[c].n_type == 0) fprintf(stderr, " %s", namelist[c].n_name); fputc('\n', stderr); } else warnx("kvm_nlist: %s", kvm_geterr(kd)); exit(1); } if (todo & VMSTAT) { struct winsize winsize; /* * Make sure that the userland devstat version matches the * kernel devstat version. If not, exit and print a * message informing the user of his mistake. */ if (checkversion() < 0) errx(1, "%s", devstat_errbuf); argv = getdrivedata(argv); winsize.ws_row = 0; ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize); if (winsize.ws_row > 0) winlines = winsize.ws_row; } #define BACKWARD_COMPATIBILITY #ifdef BACKWARD_COMPATIBILITY if (*argv) { interval = (u_int)(strtod(*argv, NULL) * 1000.0); if (*++argv) reps = atoi(*argv); } #endif if (interval) { if (!reps) reps = -1; } else if (reps) { interval = 1000; } #ifdef notyet if (todo & FORKSTAT) doforkst(); #endif if (todo & MEMSTAT) domem(); if (todo & ZMEMSTAT) dozmem(); if (todo & SUMSTAT) dosum(); #ifdef notyet if (todo & TIMESTAT) dotimes(); #endif if (todo & INTRSTAT) dointr(); if (todo & VMSTAT) dovmstat(interval, reps); exit(0); } static char ** getdrivedata(char **argv) { if ((num_devices = getnumdevs()) < 0) errx(1, "%s", devstat_errbuf); cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo)); bzero(cur.dinfo, sizeof(struct devinfo)); bzero(last.dinfo, sizeof(struct devinfo)); if (getdevs(&cur) == -1) errx(1, "%s", devstat_errbuf); num_devices = cur.dinfo->numdevs; generation = cur.dinfo->generation; specified_devices = (char **)malloc(sizeof(char *)); for (num_devices_specified = 0; *argv; ++argv) { if (isdigit(**argv)) break; num_devices_specified++; specified_devices = (char **)realloc(specified_devices, sizeof(char *) * num_devices_specified); specified_devices[num_devices_specified - 1] = *argv; } dev_select = NULL; if (nflag == 0 && maxshowdevs < num_devices_specified) maxshowdevs = num_devices_specified; /* * People are generally only interested in disk statistics when * they're running vmstat. So, that's what we're going to give * them if they don't specify anything by default. We'll also give * them any other random devices in the system so that we get to * maxshowdevs devices, if that many devices exist. If the user * specifies devices on the command line, either through a pattern * match or by naming them explicitly, we will give the user only * those devices. */ if ((num_devices_specified == 0) && (num_matches == 0)) { if (buildmatch("da", &matches, &num_matches) != 0) errx(1, "%s", devstat_errbuf); select_mode = DS_SELECT_ADD; } else select_mode = DS_SELECT_ONLY; /* * At this point, selectdevs will almost surely indicate that the * device list has changed, so we don't look for return values of 0 * or 1. If we get back -1, though, there is an error. */ if (selectdevs(&dev_select, &num_selected, &num_selections, &select_generation, generation, cur.dinfo->devices, num_devices, matches, num_matches, specified_devices, num_devices_specified, select_mode, maxshowdevs, 0) == -1) errx(1, "%s", devstat_errbuf); return(argv); } static long getuptime(void) { static time_t now, boottime; time_t uptime; if (boottime == 0) kread(X_BOOTTIME, &boottime, sizeof(boottime)); time(&now); uptime = now - boottime; if (uptime <= 0 || uptime > 60*60*24*365*10) errx(1, "time makes no sense; namelist must be wrong"); return(uptime); } int hdrcnt; static void dovmstat(u_int interval, int reps) { struct vmtotal total; struct devinfo *tmp_dinfo; size_t vmm_size = sizeof(vmm); size_t vms_size = sizeof(vms); size_t vmt_size = sizeof(total); int initial = 1; signal(SIGCONT, needhdr); for (hdrcnt = 1;;) { if (!--hdrcnt) printhdr(); if (kinfo_get_sched_cputime(&cp_time)) err(1, "kinfo_get_sched_cputime"); tmp_dinfo = last.dinfo; last.dinfo = cur.dinfo; cur.dinfo = tmp_dinfo; last.busy_time = cur.busy_time; /* * Here what we want to do is refresh our device stats. * getdevs() returns 1 when the device list has changed. * If the device list has changed, we want to go through * the selection process again, in case a device that we * were previously displaying has gone away. */ switch (getdevs(&cur)) { case -1: errx(1, "%s", devstat_errbuf); break; case 1: { int retval; num_devices = cur.dinfo->numdevs; generation = cur.dinfo->generation; retval = selectdevs(&dev_select, &num_selected, &num_selections, &select_generation, generation, cur.dinfo->devices, num_devices, matches, num_matches, specified_devices, num_devices_specified, select_mode, maxshowdevs, 0); switch (retval) { case -1: errx(1, "%s", devstat_errbuf); break; case 1: printhdr(); break; default: break; } } default: break; } if (sysctlbyname("vm.vmstats", &vms, &vms_size, NULL, 0)) { perror("sysctlbyname: vm.vmstats"); exit(1); } if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) { perror("sysctlbyname: vm.vmmeter"); exit(1); } if (sysctlbyname("vm.vmtotal", &total, &vmt_size, NULL, 0)) { perror("sysctlbyname: vm.vmtotal"); exit(1); } printf("%2ld %1ld %1ld", total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw); #define vmstat_pgtok(a) \ (intmax_t)(((intmax_t)(a) * vms.v_page_size) >> 10) #define rate(x) \ (intmax_t)(initial ? (x) : ((intmax_t)(x) * 1000 + interval / 2) \ / interval) printf(" %7jd %6jd ", vmstat_pgtok(total.t_avm), vmstat_pgtok(total.t_free)); printf("%4ju ", rate(vmm.v_vm_faults - ovmm.v_vm_faults)); printf("%3ju ", rate(vmm.v_reactivated - ovmm.v_reactivated)); printf("%3ju ", rate(vmm.v_swapin + vmm.v_vnodein - (ovmm.v_swapin + ovmm.v_vnodein))); printf("%3ju ", rate(vmm.v_swapout + vmm.v_vnodeout - (ovmm.v_swapout + ovmm.v_vnodeout))); printf("%3ju ", rate(vmm.v_tfree - ovmm.v_tfree)); printf("%3ju ", rate(vmm.v_pdpages - ovmm.v_pdpages)); devstats(); printf("%4ju %4ju %3ju ", rate(vmm.v_intr - ovmm.v_intr), rate(vmm.v_syscall - ovmm.v_syscall), rate(vmm.v_swtch - ovmm.v_swtch)); cpustats(); printf("\n"); fflush(stdout); if (reps >= 0 && --reps <= 0) break; ovmm = vmm; usleep(interval * 1000); initial = 0; } } static void printhdr(void) { int i, num_shown; num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs; printf(" procs memory page%*s", 19, ""); if (num_shown > 1) printf(" disks %*s", num_shown * 4 - 7, ""); else if (num_shown == 1) printf("disk"); printf(" faults cpu\n"); printf(" r b w avm fre flt re pi po fr sr "); for (i = 0; i < num_devices; i++) if ((dev_select[i].selected) && (dev_select[i].selected <= maxshowdevs)) printf("%c%c%d ", dev_select[i].device_name[0], dev_select[i].device_name[1], dev_select[i].unit_number); printf(" in sy cs us sy id\n"); hdrcnt = winlines - 2; } /* * Force a header to be prepended to the next output. */ static void needhdr(__unused int signo) { hdrcnt = 1; } static long pct(long top, long 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)) static void dosum(void) { struct nchstats *nch_tmp, nchstats; size_t vms_size = sizeof(vms); size_t vmm_size = sizeof(vmm); int cpucnt; u_long nchtotal; u_long nchpathtotal; size_t nch_size = sizeof(struct nchstats) * SMP_MAXCPU; if (sysctlbyname("vm.vmstats", &vms, &vms_size, NULL, 0)) { perror("sysctlbyname: vm.vmstats"); exit(1); } if (sysctlbyname("vm.vmmeter", &vmm, &vmm_size, NULL, 0)) { perror("sysctlbyname: vm.vmstats"); exit(1); } printf("%9u cpu context switches\n", vmm.v_swtch); printf("%9u device interrupts\n", vmm.v_intr); printf("%9u software interrupts\n", vmm.v_soft); printf("%9u traps\n", vmm.v_trap); printf("%9u system calls\n", vmm.v_syscall); printf("%9u kernel threads created\n", vmm.v_kthreads); printf("%9u fork() calls\n", vmm.v_forks); printf("%9u vfork() calls\n", vmm.v_vforks); printf("%9u rfork() calls\n", vmm.v_rforks); printf("%9u exec() calls\n", vmm.v_exec); printf("%9u swap pager pageins\n", vmm.v_swapin); printf("%9u swap pager pages paged in\n", vmm.v_swappgsin); printf("%9u swap pager pageouts\n", vmm.v_swapout); printf("%9u swap pager pages paged out\n", vmm.v_swappgsout); printf("%9u vnode pager pageins\n", vmm.v_vnodein); printf("%9u vnode pager pages paged in\n", vmm.v_vnodepgsin); printf("%9u vnode pager pageouts\n", vmm.v_vnodeout); printf("%9u vnode pager pages paged out\n", vmm.v_vnodepgsout); printf("%9u page daemon wakeups\n", vmm.v_pdwakeups); printf("%9u pages examined by the page daemon\n", vmm.v_pdpages); printf("%9u pages reactivated\n", vmm.v_reactivated); printf("%9u copy-on-write faults\n", vmm.v_cow_faults); printf("%9u copy-on-write optimized faults\n", vmm.v_cow_optim); printf("%9u zero fill pages zeroed\n", vmm.v_zfod); printf("%9u zero fill pages prezeroed\n", vmm.v_ozfod); printf("%9u intransit blocking page faults\n", vmm.v_intrans); printf("%9u total VM faults taken\n", vmm.v_vm_faults); printf("%9u pages affected by kernel thread creation\n", vmm.v_kthreadpages); printf("%9u pages affected by fork()\n", vmm.v_forkpages); printf("%9u pages affected by vfork()\n", vmm.v_vforkpages); printf("%9u pages affected by rfork()\n", vmm.v_rforkpages); printf("%9u pages freed\n", vmm.v_tfree); printf("%9u pages freed by daemon\n", vmm.v_dfree); printf("%9u pages freed by exiting processes\n", vmm.v_pfree); printf("%9u pages active\n", vms.v_active_count); printf("%9u pages inactive\n", vms.v_inactive_count); printf("%9u pages in VM cache\n", vms.v_cache_count); printf("%9u pages wired down\n", vms.v_wire_count); printf("%9u pages free\n", vms.v_free_count); printf("%9u bytes per page\n", vms.v_page_size); printf("%9u global smp invltlbs\n", vmm.v_smpinvltlb); if ((nch_tmp = malloc(nch_size)) == NULL) { perror("malloc"); exit(1); } else { if (sysctlbyname("vfs.cache.nchstats", nch_tmp, &nch_size, NULL, 0)) { perror("sysctlbyname vfs.cache.nchstats"); free(nch_tmp); exit(1); } else { if ((nch_tmp = realloc(nch_tmp, nch_size)) == NULL) { perror("realloc"); exit(1); } } } cpucnt = nch_size / sizeof(struct nchstats); kvm_nch_cpuagg(nch_tmp, &nchstats, cpucnt); nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits + nchstats.ncs_badhits + nchstats.ncs_falsehits + nchstats.ncs_miss; nchpathtotal = nchstats.ncs_longhits + nchstats.ncs_longmiss; printf("%9ld total path lookups\n", nchpathtotal); printf("%9ld total component lookups\n", nchtotal); printf( "%9s cache hits (%ld%% pos + %ld%% neg)\n", "", PCT(nchstats.ncs_goodhits, nchtotal), PCT(nchstats.ncs_neghits, nchtotal)); printf("%9s deletions %ld%%, falsehits %ld%%\n", "", PCT(nchstats.ncs_badhits, nchtotal), PCT(nchstats.ncs_falsehits, nchtotal)); free(nch_tmp); } #ifdef notyet void doforkst(void) { struct forkstat fks; kread(X_FORKSTAT, &fks, sizeof(struct forkstat)); printf("%d forks, %d pages, average %.2f\n", fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork); printf("%d vforks, %d pages, average %.2f\n", fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork); } #endif static void devstats(void) { int dn; long double transfers_per_second; long double busy_seconds; diff_cp_time.cp_user = cp_time.cp_user - old_cp_time.cp_user; diff_cp_time.cp_nice = cp_time.cp_nice - old_cp_time.cp_nice; diff_cp_time.cp_sys = cp_time.cp_sys - old_cp_time.cp_sys; diff_cp_time.cp_intr = cp_time.cp_intr - old_cp_time.cp_intr; diff_cp_time.cp_idle = cp_time.cp_idle - old_cp_time.cp_idle; old_cp_time = cp_time; busy_seconds = compute_etime(cur.busy_time, last.busy_time); for (dn = 0; dn < num_devices; dn++) { int di; if ((dev_select[dn].selected == 0) || (dev_select[dn].selected > maxshowdevs)) continue; di = dev_select[dn].position; if (compute_stats(&cur.dinfo->devices[di], &last.dinfo->devices[di], busy_seconds, NULL, NULL, NULL, NULL, &transfers_per_second, NULL, NULL, NULL) != 0) errx(1, "%s", devstat_errbuf); printf("%3.0Lf ", transfers_per_second); } } static void cpustats(void) { uint64_t total; double totusage; total = diff_cp_time.cp_user + diff_cp_time.cp_nice + diff_cp_time.cp_sys + diff_cp_time.cp_intr + diff_cp_time.cp_idle; if (total) totusage = 100.0 / total; else totusage = 0; printf("%2.0f ", (diff_cp_time.cp_user + diff_cp_time.cp_nice) * totusage); printf("%2.0f ", (diff_cp_time.cp_sys + diff_cp_time.cp_intr) * totusage); printf("%2.0f", diff_cp_time.cp_idle * totusage); } static void dointr(void) { u_long *intrcnt, uptime; u_int64_t inttotal; size_t nintr, inamlen, i, size; int nwidth; char *intrstr; char **intrname; uptime = getuptime(); if (sysctlbyname("hw.intrnames", NULL, &inamlen, NULL, 0) != 0) errx(1, "sysctlbyname"); intrstr = malloc(inamlen); if (intrstr == NULL) err(1, "malloc"); sysctlbyname("hw.intrnames", intrstr, &inamlen, NULL, 0); for (nintr = 0, i = 0; i < inamlen; ++i) { if (intrstr[i] == 0) nintr++; } intrname = malloc(nintr * sizeof(char *)); for (i = 0; i < nintr; ++i) { intrname[i] = intrstr; intrstr += strlen(intrstr) + 1; } size = nintr * sizeof(*intrcnt); intrcnt = calloc(nintr, sizeof(*intrcnt)); if (intrcnt == NULL) err(1, "malloc"); sysctlbyname("hw.intrcnt", intrcnt, &size, NULL, 0); nwidth = 21; for (i = 0; i < nintr; ++i) { if (nwidth < (int)strlen(intrname[i])) nwidth = (int)strlen(intrname[i]); } if (verbose) nwidth += 12; printf("%-*.*s %11s %10s\n", nwidth, nwidth, "interrupt", "total", "rate"); inttotal = 0; for (i = 0; i < nintr; ++i) { int named; char *infop, irqinfo[72]; if ((named = strncmp(intrname[i], "irq", 3)) != 0 || intrcnt[i] > 0) { infop = intrname[i]; if (verbose) { ssize_t irq, cpu; irq = i % MAX_INTS; cpu = i / MAX_INTS; if (named) { snprintf(irqinfo, sizeof(irqinfo), "irq%-3zd %3zd: %s", irq, cpu, intrname[i]); } else { snprintf(irqinfo, sizeof(irqinfo), "irq%-3zd %3zd: ", irq, cpu); } infop = irqinfo; } printf("%-*.*s %11lu %10lu\n", nwidth, nwidth, infop, intrcnt[i], intrcnt[i] / uptime); } inttotal += intrcnt[i]; } printf("%-*.*s %11llu %10llu\n", nwidth, nwidth, "Total", (long long)inttotal, (long long)(inttotal / uptime)); } #define MAX_KMSTATS 1024 static long cpuagg(size_t *ary) { int i; long ttl; for (i = ttl = 0; i < SMP_MAXCPU; ++i) ttl += ary[i]; return(ttl); } static void domem(void) { struct malloc_type *ks; int i, j; int first, nkms; long totuse = 0, totfree = 0, totreq = 0; struct malloc_type kmemstats[MAX_KMSTATS], *kmsp; char buf[1024]; kread(X_KMEMSTATISTICS, &kmsp, sizeof(kmsp)); for (nkms = 0; nkms < MAX_KMSTATS && kmsp != NULL; nkms++) { if (sizeof(kmemstats[0]) != kvm_read(kd, (u_long)kmsp, &kmemstats[nkms], sizeof(kmemstats[0]))) err(1, "kvm_read(%p)", (void *)kmsp); if (sizeof(buf) != kvm_read(kd, (u_long)kmemstats[nkms].ks_shortdesc, buf, sizeof(buf))) err(1, "kvm_read(%p)", kmemstats[nkms].ks_shortdesc); buf[sizeof(buf) - 1] = '\0'; kmemstats[nkms].ks_shortdesc = strdup(buf); kmsp = kmemstats[nkms].ks_next; } if (kmsp != NULL) warnx("truncated to the first %d memory types", nkms); printf( "\nMemory statistics by type Type Kern\n"); printf( " Type InUse MemUse HighUse Limit Requests Limit Limit\n"); for (i = 0, ks = &kmemstats[0]; i < nkms; i++, ks++) { if (ks->ks_calls == 0) continue; printf("%19s%7ld%7ldK%7ldK%11zuK%10jd%5u%6u", ks->ks_shortdesc, cpuagg(ks->ks_inuse), (cpuagg(ks->ks_memuse) + 1023) / 1024, (ks->ks_maxused + 1023) / 1024, (ks->ks_limit + 1023) / 1024, (intmax_t)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(" "); else printf(","); if(j<1024) printf("%d",j); else printf("%dK",j>>10); first = 0; } printf("\n"); totuse += cpuagg(ks->ks_memuse); totreq += ks->ks_calls; } printf("\nMemory Totals: In Use Free Requests\n"); printf(" %7ldK %6ldK %8ld\n", (totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq); } static void dozmem(void) { char *buf; size_t bufsize; buf = NULL; bufsize = 1024; for (;;) { if ((buf = realloc(buf, bufsize)) == NULL) err(1, "realloc()"); if (sysctlbyname("vm.zone", buf, &bufsize, NULL, 0) == 0) break; if (errno != ENOMEM) err(1, "sysctl()"); bufsize *= 2; } buf[bufsize] = '\0'; /* play it safe */ printf("%s\n\n", buf); free(buf); } /* * kread reads something from the kernel, given its nlist index. */ static void kread(int nlx, void *addr, size_t size) { const 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) != (ssize_t)size) { sym = namelist[nlx].n_name; if (*sym == '_') ++sym; errx(1, "%s: %s", sym, kvm_geterr(kd)); } } static void usage(void) { fprintf(stderr, "%s%s", "usage: vmstat [-imsvz] [-c count] [-M core] [-N system] [-w wait]\n", " [-n devs] [disks]\n"); exit(1); }