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freebsd-src/usr.bin/vmstat/vmstat.c
Alexander Motin 1f36ca5de5 vmstat: Rely on libxo for numbers humanization 
This makes code cleaner, plus fixes such nonsense as humanized JSON
and XML, making all numbers raw without quotes, spaces, suffixes, etc.

MFC after:      2 weeks
2023-12-07 21:21:35 -05:00

1611 lines
42 KiB
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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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.
*/
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/uio.h>
#include <sys/namei.h>
#include <sys/malloc.h>
#include <sys/signal.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <sys/resource.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <sys/user.h>
#define _WANT_VMMETER
#include <sys/vmmeter.h>
#include <sys/pcpu.h>
#include <vm/vm_param.h>
#include <ctype.h>
#include <devstat.h>
#include <err.h>
#include <errno.h>
#include <inttypes.h>
#include <kvm.h>
#include <limits.h>
#include <memstat.h>
#include <nlist.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <time.h>
#include <unistd.h>
#include <libutil.h>
#include <libxo/xo.h>
#define VMSTAT_XO_VERSION "1"
static char da[] = "da";
enum x_stats { X_SUM, X_HZ, X_STATHZ, X_NCHSTATS, X_INTRNAMES, X_SINTRNAMES,
X_INTRCNT, X_SINTRCNT, X_NINTRCNT };
static struct nlist namelist[] = {
[X_SUM] = { .n_name = "_vm_cnt", },
[X_HZ] = { .n_name = "_hz", },
[X_STATHZ] = { .n_name = "_stathz", },
[X_NCHSTATS] = { .n_name = "_nchstats", },
[X_INTRNAMES] = { .n_name = "_intrnames", },
[X_SINTRNAMES] = { .n_name = "_sintrnames", },
[X_INTRCNT] = { .n_name = "_intrcnt", },
[X_SINTRCNT] = { .n_name = "_sintrcnt", },
[X_NINTRCNT] = { .n_name = "_nintrcnt", },
{ .n_name = NULL, },
};
static struct devstat_match *matches;
static struct device_selection *dev_select;
static struct statinfo cur, last;
static devstat_select_mode select_mode;
static size_t size_cp_times;
static long *cur_cp_times, *last_cp_times;
static long generation, select_generation;
static int hz, hdrcnt, maxshowdevs;
static int num_devices, num_devices_specified;
static int num_matches, num_selected, num_selections;
static char **specified_devices;
static struct __vmmeter {
uint64_t v_swtch;
uint64_t v_trap;
uint64_t v_syscall;
uint64_t v_intr;
uint64_t v_soft;
uint64_t v_vm_faults;
uint64_t v_io_faults;
uint64_t v_cow_faults;
uint64_t v_cow_optim;
uint64_t v_zfod;
uint64_t v_ozfod;
uint64_t v_swapin;
uint64_t v_swapout;
uint64_t v_swappgsin;
uint64_t v_swappgsout;
uint64_t v_vnodein;
uint64_t v_vnodeout;
uint64_t v_vnodepgsin;
uint64_t v_vnodepgsout;
uint64_t v_intrans;
uint64_t v_reactivated;
uint64_t v_pdwakeups;
uint64_t v_pdpages;
uint64_t v_pdshortfalls;
uint64_t v_dfree;
uint64_t v_pfree;
uint64_t v_tfree;
uint64_t v_forks;
uint64_t v_vforks;
uint64_t v_rforks;
uint64_t v_kthreads;
uint64_t v_forkpages;
uint64_t v_vforkpages;
uint64_t v_rforkpages;
uint64_t v_kthreadpages;
u_int v_page_size;
u_int v_page_count;
u_int v_free_reserved;
u_int v_free_target;
u_int v_free_min;
u_int v_free_count;
u_int v_wire_count;
u_long v_user_wire_count;
u_int v_active_count;
u_int v_inactive_target;
u_int v_inactive_count;
u_int v_laundry_count;
u_int v_pageout_free_min;
u_int v_interrupt_free_min;
u_int v_free_severe;
} sum, osum;
#define VMSTAT_DEFAULT_LINES 20 /* Default number of `winlines'. */
static volatile sig_atomic_t wresized; /* Tty resized when non-zero. */
static int winlines = VMSTAT_DEFAULT_LINES; /* Current number of tty rows. */
static int aflag;
static int nflag;
static int Pflag;
static int hflag;
static kvm_t *kd;
#define FORKSTAT 0x01
#define INTRSTAT 0x02
#define MEMSTAT 0x04
#define SUMSTAT 0x08
#define TIMESTAT 0x10
#define VMSTAT 0x20
#define ZMEMSTAT 0x40
#define OBJSTAT 0x80
static void cpustats(void);
static void pcpustats(u_long, int);
static void devstats(void);
static void doforkst(void);
static void dointr(unsigned int, int);
static void doobjstat(void);
static void dosum(void);
static void dovmstat(unsigned int, int);
static void domemstat_malloc(void);
static void domemstat_zone(void);
static void kread(int, void *, size_t);
static void kreado(int, void *, size_t, size_t);
static void kreadptr(uintptr_t, void *, size_t);
static void needhdr(int);
static void needresize(int);
static void doresize(void);
static void printhdr(int, u_long);
static void usage(void);
static long pct(long, long);
static long long getuptime(void);
static char **getdrivedata(char **);
int
main(int argc, char *argv[])
{
char *bp, *buf, *memf, *nlistf;
float f;
int bufsize, c, reps, todo;
size_t len;
unsigned int interval;
char errbuf[_POSIX2_LINE_MAX];
memf = nlistf = NULL;
interval = reps = todo = 0;
maxshowdevs = 2;
argc = xo_parse_args(argc, argv);
if (argc < 0)
return (argc);
hflag = isatty(1);
while ((c = getopt(argc, argv, "ac:fhHiM:mN:n:oPp:sw:z")) != -1) {
switch (c) {
case 'a':
aflag++;
break;
case 'c':
reps = atoi(optarg);
break;
case 'P':
Pflag++;
break;
case 'f':
todo |= FORKSTAT;
break;
case 'h':
hflag = 1;
break;
case 'H':
hflag = 0;
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)
xo_errx(1, "number of devices %d is < 0",
maxshowdevs);
break;
case 'o':
todo |= OBJSTAT;
break;
case 'p':
if (devstat_buildmatch(optarg, &matches, &num_matches)
!= 0)
xo_errx(1, "%s", devstat_errbuf);
break;
case 's':
todo |= SUMSTAT;
break;
case 'w':
/* Convert to milliseconds. */
f = atof(optarg);
interval = f * 1000;
break;
case 'z':
todo |= ZMEMSTAT;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
xo_set_version(VMSTAT_XO_VERSION);
if (!hflag)
xo_set_options(NULL, "no-humanize");
if (todo == 0)
todo = VMSTAT;
if (memf != NULL) {
kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
if (kd == NULL)
xo_errx(1, "kvm_openfiles: %s", errbuf);
}
retry_nlist:
if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) {
if (c > 0) {
bufsize = 0;
len = 0;
/*
* 'cnt' was renamed to 'vm_cnt'. If 'vm_cnt' is not
* found try looking up older 'cnt' symbol.
* */
if (namelist[X_SUM].n_type == 0 &&
strcmp(namelist[X_SUM].n_name, "_vm_cnt") == 0) {
namelist[X_SUM].n_name = "_cnt";
goto retry_nlist;
}
/*
* 'nintrcnt' doesn't exist in older kernels, but
* that isn't fatal.
*/
if (namelist[X_NINTRCNT].n_type == 0 && c == 1)
goto nlist_ok;
for (c = 0; c < (int)(nitems(namelist)); c++)
if (namelist[c].n_type == 0)
bufsize += strlen(namelist[c].n_name)
+ 1;
bufsize += len + 1;
buf = bp = alloca(bufsize);
for (c = 0; c < (int)(nitems(namelist)); c++)
if (namelist[c].n_type == 0) {
xo_error(" %s",
namelist[c].n_name);
len = strlen(namelist[c].n_name);
*bp++ = ' ';
memcpy(bp, namelist[c].n_name, len);
bp += len;
}
*bp = '\0';
xo_error("undefined symbols:\n", buf);
} else
xo_warnx("kvm_nlist: %s", kvm_geterr(kd));
xo_finish();
exit(1);
}
nlist_ok:
if (kd && Pflag)
xo_errx(1, "Cannot use -P with crash dumps");
if (todo & VMSTAT) {
/*
* 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 (devstat_checkversion(NULL) < 0)
xo_errx(1, "%s", devstat_errbuf);
argv = getdrivedata(argv);
}
if (*argv) {
f = atof(*argv);
interval = f * 1000;
if (*++argv)
reps = atoi(*argv);
}
if (interval) {
if (!reps)
reps = -1;
} else if (reps)
interval = 1 * 1000;
if (todo & FORKSTAT)
doforkst();
if (todo & MEMSTAT)
domemstat_malloc();
if (todo & ZMEMSTAT)
domemstat_zone();
if (todo & SUMSTAT)
dosum();
if (todo & OBJSTAT)
doobjstat();
if (todo & INTRSTAT)
dointr(interval, reps);
if (todo & VMSTAT)
dovmstat(interval, reps);
xo_finish();
exit(0);
}
static int
mysysctl(const char *name, void *oldp, size_t *oldlenp)
{
int error;
error = sysctlbyname(name, oldp, oldlenp, NULL, 0);
if (error != 0 && errno != ENOMEM)
xo_err(1, "sysctl(%s)", name);
return (error);
}
static char **
getdrivedata(char **argv)
{
if ((num_devices = devstat_getnumdevs(NULL)) < 0)
xo_errx(1, "%s", devstat_errbuf);
cur.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
last.dinfo = (struct devinfo *)calloc(1, sizeof(struct devinfo));
if (devstat_getdevs(NULL, &cur) == -1)
xo_errx(1, "%s", devstat_errbuf);
num_devices = cur.dinfo->numdevs;
generation = cur.dinfo->generation;
specified_devices = malloc(sizeof(char *));
for (num_devices_specified = 0; *argv; ++argv) {
if (isdigit(**argv))
break;
num_devices_specified++;
specified_devices = reallocf(specified_devices,
sizeof(char *) * num_devices_specified);
if (specified_devices == NULL) {
xo_errx(1, "%s", "reallocf (specified_devices)");
}
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 (devstat_buildmatch(da, &matches, &num_matches) != 0)
xo_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 (devstat_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)
xo_errx(1, "%s", devstat_errbuf);
return(argv);
}
/* Return system uptime in nanoseconds */
static long long
getuptime(void)
{
struct timespec sp;
(void)clock_gettime(CLOCK_UPTIME, &sp);
return((long long)sp.tv_sec * 1000000000LL + sp.tv_nsec);
}
static void
fill_vmmeter(struct __vmmeter *vmmp)
{
struct vmmeter vm_cnt;
size_t size;
if (kd != NULL) {
kread(X_SUM, &vm_cnt, sizeof(vm_cnt));
#define GET_COUNTER(name) \
vmmp->name = kvm_counter_u64_fetch(kd, (u_long)vm_cnt.name)
GET_COUNTER(v_swtch);
GET_COUNTER(v_trap);
GET_COUNTER(v_syscall);
GET_COUNTER(v_intr);
GET_COUNTER(v_soft);
GET_COUNTER(v_vm_faults);
GET_COUNTER(v_io_faults);
GET_COUNTER(v_cow_faults);
GET_COUNTER(v_cow_optim);
GET_COUNTER(v_zfod);
GET_COUNTER(v_ozfod);
GET_COUNTER(v_swapin);
GET_COUNTER(v_swapout);
GET_COUNTER(v_swappgsin);
GET_COUNTER(v_swappgsout);
GET_COUNTER(v_vnodein);
GET_COUNTER(v_vnodeout);
GET_COUNTER(v_vnodepgsin);
GET_COUNTER(v_vnodepgsout);
GET_COUNTER(v_intrans);
GET_COUNTER(v_tfree);
GET_COUNTER(v_forks);
GET_COUNTER(v_vforks);
GET_COUNTER(v_rforks);
GET_COUNTER(v_kthreads);
GET_COUNTER(v_forkpages);
GET_COUNTER(v_vforkpages);
GET_COUNTER(v_rforkpages);
GET_COUNTER(v_kthreadpages);
#undef GET_COUNTER
} else {
#define GET_VM_STATS(cat, name) do { \
size = sizeof(vmmp->name); \
mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size); \
} while (0)
/* sys */
GET_VM_STATS(sys, v_swtch);
GET_VM_STATS(sys, v_trap);
GET_VM_STATS(sys, v_syscall);
GET_VM_STATS(sys, v_intr);
GET_VM_STATS(sys, v_soft);
/* vm */
GET_VM_STATS(vm, v_vm_faults);
GET_VM_STATS(vm, v_io_faults);
GET_VM_STATS(vm, v_cow_faults);
GET_VM_STATS(vm, v_cow_optim);
GET_VM_STATS(vm, v_zfod);
GET_VM_STATS(vm, v_ozfod);
GET_VM_STATS(vm, v_swapin);
GET_VM_STATS(vm, v_swapout);
GET_VM_STATS(vm, v_swappgsin);
GET_VM_STATS(vm, v_swappgsout);
GET_VM_STATS(vm, v_vnodein);
GET_VM_STATS(vm, v_vnodeout);
GET_VM_STATS(vm, v_vnodepgsin);
GET_VM_STATS(vm, v_vnodepgsout);
GET_VM_STATS(vm, v_intrans);
GET_VM_STATS(vm, v_reactivated);
GET_VM_STATS(vm, v_pdwakeups);
GET_VM_STATS(vm, v_pdpages);
GET_VM_STATS(vm, v_pdshortfalls);
GET_VM_STATS(vm, v_dfree);
GET_VM_STATS(vm, v_pfree);
GET_VM_STATS(vm, v_tfree);
GET_VM_STATS(vm, v_page_size);
GET_VM_STATS(vm, v_page_count);
GET_VM_STATS(vm, v_free_reserved);
GET_VM_STATS(vm, v_free_target);
GET_VM_STATS(vm, v_free_min);
GET_VM_STATS(vm, v_free_count);
GET_VM_STATS(vm, v_wire_count);
GET_VM_STATS(vm, v_user_wire_count);
GET_VM_STATS(vm, v_active_count);
GET_VM_STATS(vm, v_inactive_target);
GET_VM_STATS(vm, v_inactive_count);
GET_VM_STATS(vm, v_laundry_count);
GET_VM_STATS(vm, v_pageout_free_min);
GET_VM_STATS(vm, v_interrupt_free_min);
/*GET_VM_STATS(vm, v_free_severe);*/
GET_VM_STATS(vm, v_forks);
GET_VM_STATS(vm, v_vforks);
GET_VM_STATS(vm, v_rforks);
GET_VM_STATS(vm, v_kthreads);
GET_VM_STATS(vm, v_forkpages);
GET_VM_STATS(vm, v_vforkpages);
GET_VM_STATS(vm, v_rforkpages);
GET_VM_STATS(vm, v_kthreadpages);
#undef GET_VM_STATS
}
}
static void
fill_vmtotal(struct vmtotal *vmtp)
{
size_t size;
if (kd != NULL) {
/* XXX fill vmtp */
xo_errx(1, "not implemented");
} else {
size = sizeof(*vmtp);
mysysctl("vm.vmtotal", vmtp, &size);
if (size != sizeof(*vmtp))
xo_errx(1, "vm.total size mismatch");
}
}
/* Determine how many cpu columns, and what index they are in kern.cp_times */
static void
getcpuinfo(u_long *maskp, int *maxidp)
{
long *times;
u_long mask;
size_t size;
int empty, i, j, maxcpu, maxid;
if (kd != NULL)
xo_errx(1, "not implemented");
mask = 0;
size = sizeof(maxcpu);
mysysctl("kern.smp.maxcpus", &maxcpu, &size);
if (size != sizeof(maxcpu))
xo_errx(1, "sysctl kern.smp.maxcpus");
size = sizeof(long) * maxcpu * CPUSTATES;
times = malloc(size);
if (times == NULL)
xo_err(1, "malloc %zd bytes", size);
mysysctl("kern.cp_times", times, &size);
maxid = (size / CPUSTATES / sizeof(long)) - 1;
for (i = 0; i <= maxid; i++) {
empty = 1;
for (j = 0; empty && j < CPUSTATES; j++) {
if (times[i * CPUSTATES + j] != 0)
empty = 0;
}
if (!empty)
mask |= (1ul << i);
}
if (maskp)
*maskp = mask;
if (maxidp)
*maxidp = maxid;
}
static void
dovmstat(unsigned int interval, int reps)
{
struct clockinfo clockrate;
struct vmtotal total;
struct devinfo *tmp_dinfo;
u_long cpumask;
size_t size;
time_t uptime, halfuptime;
int maxid, rate_adj, retval;
uptime = getuptime() / 1000000000LL;
halfuptime = uptime / 2;
rate_adj = 1;
maxid = 0;
cpumask = 0;
/*
* If the user stops the program (control-Z) and then resumes it,
* print out the header again.
*/
(void)signal(SIGCONT, needhdr);
/*
* If our standard output is a tty, then install a SIGWINCH handler
* and set wresized so that our first iteration through the main
* vmstat loop will peek at the terminal's current rows to find out
* how many lines can fit in a screenful of output.
*/
if (isatty(fileno(stdout)) != 0) {
wresized = 1;
(void)signal(SIGWINCH, needresize);
} else {
wresized = 0;
winlines = VMSTAT_DEFAULT_LINES;
}
if (kd != NULL) {
if (namelist[X_STATHZ].n_type != 0 &&
namelist[X_STATHZ].n_value != 0)
kread(X_STATHZ, &hz, sizeof(hz));
if (!hz)
kread(X_HZ, &hz, sizeof(hz));
} else {
size = sizeof(clockrate);
mysysctl("kern.clockrate", &clockrate, &size);
if (size != sizeof(clockrate))
xo_errx(1, "clockrate size mismatch");
hz = clockrate.hz;
}
if (Pflag) {
getcpuinfo(&cpumask, &maxid);
size_cp_times = sizeof(long) * (maxid + 1) * CPUSTATES;
cur_cp_times = calloc(1, size_cp_times);
last_cp_times = calloc(1, size_cp_times);
}
for (hdrcnt = 1;;) {
if (!--hdrcnt)
printhdr(maxid, cpumask);
if (kd != NULL) {
if (kvm_getcptime(kd, cur.cp_time) < 0)
xo_errx(1, "kvm_getcptime: %s", kvm_geterr(kd));
} else {
size = sizeof(cur.cp_time);
mysysctl("kern.cp_time", &cur.cp_time, &size);
if (size != sizeof(cur.cp_time))
xo_errx(1, "cp_time size mismatch");
}
if (Pflag) {
size = size_cp_times;
mysysctl("kern.cp_times", cur_cp_times, &size);
if (size != size_cp_times)
xo_errx(1, "cp_times mismatch");
}
tmp_dinfo = last.dinfo;
last.dinfo = cur.dinfo;
cur.dinfo = tmp_dinfo;
last.snap_time = cur.snap_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 (devstat_getdevs(NULL, &cur)) {
case -1:
xo_errx(1, "%s", devstat_errbuf);
break;
case 1:
num_devices = cur.dinfo->numdevs;
generation = cur.dinfo->generation;
retval = devstat_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:
xo_errx(1, "%s", devstat_errbuf);
break;
case 1:
printhdr(maxid, cpumask);
break;
default:
break;
}
break;
default:
break;
}
fill_vmmeter(&sum);
fill_vmtotal(&total);
xo_open_container("processes");
xo_emit("{:runnable/%2d} {:waiting/%2ld} "
"{:swapped-out/%2ld}", total.t_rq - 1, total.t_dw +
total.t_pw, total.t_sw);
xo_close_container("processes");
xo_open_container("memory");
#define rate(x) (unsigned long)(((x) * rate_adj + halfuptime) / uptime)
xo_emit(" {[:4}{h,hn-decimal:available-memory/%ju}{]:}",
(uintmax_t)total.t_avm * sum.v_page_size);
xo_emit(" {[:4}{h,hn-decimal:free-memory/%ju}{]:}",
(uintmax_t)total.t_free * sum.v_page_size);
xo_emit(" {[:4}{h,hn-decimal,hn-1000:total-page-faults/%lu}{]:} ",
rate(sum.v_vm_faults - osum.v_vm_faults));
xo_close_container("memory");
xo_open_container("paging-rates");
xo_emit("{:page-reactivated/%3lu} ",
rate(sum.v_reactivated - osum.v_reactivated));
xo_emit("{:paged-in/%3lu} ",
rate(sum.v_swapin + sum.v_vnodein -
(osum.v_swapin + osum.v_vnodein)));
xo_emit("{:paged-out/%3lu}",
rate(sum.v_swapout + sum.v_vnodeout -
(osum.v_swapout + osum.v_vnodeout)));
xo_emit(" {[:4}{h,hn-decimal,hn-1000:freed/%lu}{]:}",
rate(sum.v_tfree - osum.v_tfree));
xo_emit(" {[:4}{h,hn-decimal,hn-1000:scanned/%lu}{]:}",
rate(sum.v_pdpages - osum.v_pdpages));
xo_close_container("paging-rates");
devstats();
xo_open_container("fault-rates");
xo_emit(" {[:4}{h,hn-decimal,hn-1000:interrupts/%lu}{]:}"
" {[:4}{h,hn-decimal,hn-1000:system-calls/%lu}{]:}"
" {[:4}{h,hn-decimal,hn-1000:context-switches/%lu}{]:}",
rate(sum.v_intr - osum.v_intr),
rate(sum.v_syscall - osum.v_syscall),
rate(sum.v_swtch - osum.v_swtch));
xo_close_container("fault-rates");
if (Pflag)
pcpustats(cpumask, maxid);
else
cpustats();
xo_emit("\n");
xo_flush();
if (reps >= 0 && --reps <= 0)
break;
osum = sum;
uptime = interval;
rate_adj = 1000;
/*
* We round upward to avoid losing low-frequency events
* (i.e., >= 1 per interval but < 1 per millisecond).
*/
if (interval != 1)
halfuptime = (uptime + 1) / 2;
else
halfuptime = 0;
(void)usleep(interval * 1000);
}
}
static void
printhdr(int maxid, u_long cpumask)
{
int i, num_shown;
num_shown = MIN(num_selected, maxshowdevs);
xo_emit(" {T:procs} {T:memory} {T:/page%*s}", 19, "");
if (num_shown > 1)
xo_emit(" {T:/disks %*s} ", num_shown * 5 - 7, "");
else if (num_shown == 1)
xo_emit(" {T:disks} ");
xo_emit(" {T:faults} ");
if (Pflag) {
for (i = 0; i <= maxid; i++) {
if (cpumask & (1ul << i))
xo_emit(" {T:/cpu%d} ", i);
}
xo_emit("\n");
} else
xo_emit(" {T:cpu}\n");
xo_emit(" {T:r} {T:b} {T:w} {T:avm} {T:fre} {T:flt} {T:re}"
" {T:pi} {T:po} {T:fr} {T:sr} ");
for (i = 0; i < num_devices; i++)
if ((dev_select[i].selected) &&
(dev_select[i].selected <= maxshowdevs))
xo_emit("{T:/%3.3s%d} ", dev_select[i].device_name,
dev_select[i].unit_number);
xo_emit(" {T:in} {T:sy} {T:cs}");
if (Pflag) {
for (i = 0; i <= maxid; i++) {
if (cpumask & (1ul << i))
xo_emit(" {T:us} {T:sy} {T:id}");
}
xo_emit("\n");
} else
xo_emit(" {T:us} {T:sy} {T:id}\n");
if (wresized != 0)
doresize();
hdrcnt = winlines;
}
/*
* Force a header to be prepended to the next output.
*/
static void
needhdr(int dummy __unused)
{
hdrcnt = 1;
}
/*
* When the terminal is resized, force an update of the maximum number of rows
* printed between each header repetition. Then force a new header to be
* prepended to the next output.
*/
void
needresize(int signo __unused)
{
wresized = 1;
hdrcnt = 1;
}
/*
* Update the global `winlines' count of terminal rows.
*/
void
doresize(void)
{
struct winsize w;
int status;
for (;;) {
status = ioctl(fileno(stdout), TIOCGWINSZ, &w);
if (status == -1 && errno == EINTR)
continue;
else if (status == -1)
xo_err(1, "ioctl");
if (w.ws_row > 3)
winlines = w.ws_row - 3;
else
winlines = VMSTAT_DEFAULT_LINES;
break;
}
/*
* Inhibit doresize() calls until we are rescheduled by SIGWINCH.
*/
wresized = 0;
}
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 lnchstats;
size_t size;
long nchtotal;
fill_vmmeter(&sum);
xo_open_container("summary-statistics");
xo_emit("{:context-switches/%9u} {N:cpu context switches}\n",
sum.v_swtch);
xo_emit("{:interrupts/%9u} {N:device interrupts}\n",
sum.v_intr);
xo_emit("{:software-interrupts/%9u} {N:software interrupts}\n",
sum.v_soft);
xo_emit("{:traps/%9u} {N:traps}\n", sum.v_trap);
xo_emit("{:system-calls/%9u} {N:system calls}\n",
sum.v_syscall);
xo_emit("{:kernel-threads/%9u} {N:kernel threads created}\n",
sum.v_kthreads);
xo_emit("{:forks/%9u} {N: fork() calls}\n", sum.v_forks);
xo_emit("{:vforks/%9u} {N:vfork() calls}\n",
sum.v_vforks);
xo_emit("{:rforks/%9u} {N:rfork() calls}\n",
sum.v_rforks);
xo_emit("{:swap-ins/%9u} {N:swap pager pageins}\n",
sum.v_swapin);
xo_emit("{:swap-in-pages/%9u} {N:swap pager pages paged in}\n",
sum.v_swappgsin);
xo_emit("{:swap-outs/%9u} {N:swap pager pageouts}\n",
sum.v_swapout);
xo_emit("{:swap-out-pages/%9u} {N:swap pager pages paged out}\n",
sum.v_swappgsout);
xo_emit("{:vnode-page-ins/%9u} {N:vnode pager pageins}\n",
sum.v_vnodein);
xo_emit("{:vnode-page-in-pages/%9u} {N:vnode pager pages paged in}\n",
sum.v_vnodepgsin);
xo_emit("{:vnode-page-outs/%9u} {N:vnode pager pageouts}\n",
sum.v_vnodeout);
xo_emit("{:vnode-page-out-pages/%9u} {N:vnode pager pages paged out}\n",
sum.v_vnodepgsout);
xo_emit("{:page-daemon-wakeups/%9u} {N:page daemon wakeups}\n",
sum.v_pdwakeups);
xo_emit("{:page-daemon-pages/%9u} {N:pages examined by the page "
"daemon}\n", sum.v_pdpages);
xo_emit("{:page-reclamation-shortfalls/%9u} {N:clean page reclamation "
"shortfalls}\n", sum.v_pdshortfalls);
xo_emit("{:reactivated/%9u} {N:pages reactivated by the page daemon}\n",
sum.v_reactivated);
xo_emit("{:copy-on-write-faults/%9u} {N:copy-on-write faults}\n",
sum.v_cow_faults);
xo_emit("{:copy-on-write-optimized-faults/%9u} {N:copy-on-write "
"optimized faults}\n", sum.v_cow_optim);
xo_emit("{:zero-fill-pages/%9u} {N:zero fill pages zeroed}\n",
sum.v_zfod);
xo_emit("{:zero-fill-prezeroed/%9u} {N:zero fill pages prezeroed}\n",
sum.v_ozfod);
xo_emit("{:intransit-blocking/%9u} {N:intransit blocking page faults}\n",
sum.v_intrans);
xo_emit("{:total-faults/%9u} {N:total VM faults taken}\n",
sum.v_vm_faults);
xo_emit("{:faults-requiring-io/%9u} {N:page faults requiring I\\/O}\n",
sum.v_io_faults);
xo_emit("{:faults-from-thread-creation/%9u} {N:pages affected by "
"kernel thread creation}\n", sum.v_kthreadpages);
xo_emit("{:faults-from-fork/%9u} {N:pages affected by fork}()\n",
sum.v_forkpages);
xo_emit("{:faults-from-vfork/%9u} {N:pages affected by vfork}()\n",
sum.v_vforkpages);
xo_emit("{:pages-rfork/%9u} {N:pages affected by rfork}()\n",
sum.v_rforkpages);
xo_emit("{:pages-freed/%9u} {N:pages freed}\n",
sum.v_tfree);
xo_emit("{:pages-freed-by-daemon/%9u} {N:pages freed by daemon}\n",
sum.v_dfree);
xo_emit("{:pages-freed-on-exit/%9u} {N:pages freed by exiting processes}\n",
sum.v_pfree);
xo_emit("{:active-pages/%9u} {N:pages active}\n",
sum.v_active_count);
xo_emit("{:inactive-pages/%9u} {N:pages inactive}\n",
sum.v_inactive_count);
xo_emit("{:laundry-pages/%9u} {N:pages in the laundry queue}\n",
sum.v_laundry_count);
xo_emit("{:wired-pages/%9u} {N:pages wired down}\n",
sum.v_wire_count);
xo_emit("{:virtual-user-wired-pages/%9lu} {N:virtual user pages wired "
"down}\n", sum.v_user_wire_count);
xo_emit("{:free-pages/%9u} {N:pages free}\n",
sum.v_free_count);
xo_emit("{:bytes-per-page/%9u} {N:bytes per page}\n", sum.v_page_size);
if (kd != NULL) {
kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats));
} else {
size = sizeof(lnchstats);
mysysctl("vfs.cache.nchstats", &lnchstats, &size);
if (size != sizeof(lnchstats))
xo_errx(1, "vfs.cache.nchstats size mismatch");
}
nchtotal = lnchstats.ncs_goodhits + lnchstats.ncs_neghits +
lnchstats.ncs_badhits + lnchstats.ncs_falsehits +
lnchstats.ncs_miss + lnchstats.ncs_long;
xo_emit("{:total-name-lookups/%9ld} {N:total name lookups}\n",
nchtotal);
xo_emit("{P:/%9s} {N:cache hits} "
"({:positive-cache-hits/%ld}% pos + "
"{:negative-cache-hits/%ld}% {N:neg}) "
"system {:cache-hit-percent/%ld}% per-directory\n",
"", PCT(lnchstats.ncs_goodhits, nchtotal),
PCT(lnchstats.ncs_neghits, nchtotal),
PCT(lnchstats.ncs_pass2, nchtotal));
xo_emit("{P:/%9s} {L:deletions} {:deletions/%ld}%, "
"{L:falsehits} {:false-hits/%ld}%, "
"{L:toolong} {:too-long/%ld}%\n", "",
PCT(lnchstats.ncs_badhits, nchtotal),
PCT(lnchstats.ncs_falsehits, nchtotal),
PCT(lnchstats.ncs_long, nchtotal));
xo_close_container("summary-statistics");
}
static void
doforkst(void)
{
fill_vmmeter(&sum);
xo_open_container("fork-statistics");
xo_emit("{:fork/%u} {N:forks}, {:fork-pages/%u} {N:pages}, "
"{L:average} {:fork-average/%.2f}\n",
sum.v_forks, sum.v_forkpages,
sum.v_forks == 0 ? 0.0 :
(double)sum.v_forkpages / sum.v_forks);
xo_emit("{:vfork/%u} {N:vforks}, {:vfork-pages/%u} {N:pages}, "
"{L:average} {:vfork-average/%.2f}\n",
sum.v_vforks, sum.v_vforkpages,
sum.v_vforks == 0 ? 0.0 :
(double)sum.v_vforkpages / sum.v_vforks);
xo_emit("{:rfork/%u} {N:rforks}, {:rfork-pages/%u} {N:pages}, "
"{L:average} {:rfork-average/%.2f}\n",
sum.v_rforks, sum.v_rforkpages,
sum.v_rforks == 0 ? 0.0 :
(double)sum.v_rforkpages / sum.v_rforks);
xo_close_container("fork-statistics");
}
static void
devstats(void)
{
long double busy_seconds, transfers_per_second;
long tmp;
int di, dn, state;
for (state = 0; state < CPUSTATES; ++state) {
tmp = cur.cp_time[state];
cur.cp_time[state] -= last.cp_time[state];
last.cp_time[state] = tmp;
}
busy_seconds = cur.snap_time - last.snap_time;
xo_open_list("device");
for (dn = 0; dn < num_devices; dn++) {
if (dev_select[dn].selected == 0 ||
dev_select[dn].selected > maxshowdevs)
continue;
di = dev_select[dn].position;
if (devstat_compute_statistics(&cur.dinfo->devices[di],
&last.dinfo->devices[di], busy_seconds,
DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
DSM_NONE) != 0)
xo_errx(1, "%s", devstat_errbuf);
xo_open_instance("device");
xo_emit("{ekq:name/%s%d}",
dev_select[dn].device_name,
dev_select[dn].unit_number);
xo_emit("{[:5}{h,hn-decimal,hn-1000:transfers/%ju}{]:}",
(uintmax_t)transfers_per_second);
xo_close_instance("device");
}
xo_close_list("device");
}
static void
percent(const char *name, long pctv, int *over)
{
char fmt[64];
snprintf(fmt, sizeof(fmt), " {:%s/%%%ulld/%%lld}", name,
(*over && pctv <= 9) ? 1 : 2);
xo_emit(fmt, pctv);
if (*over && pctv <= 9)
(*over)--;
else if (pctv >= 100)
(*over)++;
}
static void
cpustats(void)
{
long total;
int state, over;
total = 0;
for (state = 0; state < CPUSTATES; ++state)
total += cur.cp_time[state];
if (total == 0)
total = 1;
over = 0;
xo_open_container("cpu-statistics");
percent("user", 100LL * (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) /
total, &over);
percent("system", 100LL * (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) /
total, &over);
percent("idle", 100LL * cur.cp_time[CP_IDLE] / total, &over);
xo_close_container("cpu-statistics");
}
static void
pcpustats(u_long cpumask, int maxid)
{
long tmp, total;
int i, state, over;
/* devstats does this for cp_time */
for (i = 0; i <= maxid; i++) {
if ((cpumask & (1ul << i)) == 0)
continue;
for (state = 0; state < CPUSTATES; ++state) {
tmp = cur_cp_times[i * CPUSTATES + state];
cur_cp_times[i * CPUSTATES + state] -= last_cp_times[i *
CPUSTATES + state];
last_cp_times[i * CPUSTATES + state] = tmp;
}
}
over = 0;
xo_open_list("cpu");
for (i = 0; i <= maxid; i++) {
if ((cpumask & (1ul << i)) == 0)
continue;
xo_open_instance("cpu");
xo_emit("{ke:name/%d}", i);
total = 0;
for (state = 0; state < CPUSTATES; ++state)
total += cur_cp_times[i * CPUSTATES + state];
if (total == 0)
total = 1;
percent("user",
100LL * (cur_cp_times[i * CPUSTATES + CP_USER] +
cur_cp_times[i * CPUSTATES + CP_NICE]) / total, &over);
percent("system",
100LL * (cur_cp_times[i * CPUSTATES + CP_SYS] +
cur_cp_times[i * CPUSTATES + CP_INTR]) / total, &over);
percent("idle",
100LL * cur_cp_times[i * CPUSTATES + CP_IDLE] / total,
&over);
xo_close_instance("cpu");
}
xo_close_list("cpu");
}
static unsigned int
read_intrcnts(unsigned long **intrcnts)
{
size_t intrcntlen;
uintptr_t kaddr;
if (kd != NULL) {
kread(X_SINTRCNT, &intrcntlen, sizeof(intrcntlen));
if ((*intrcnts = malloc(intrcntlen)) == NULL)
err(1, "malloc()");
if (namelist[X_NINTRCNT].n_type == 0)
kread(X_INTRCNT, *intrcnts, intrcntlen);
else {
kread(X_INTRCNT, &kaddr, sizeof(kaddr));
kreadptr(kaddr, *intrcnts, intrcntlen);
}
} else {
for (*intrcnts = NULL, intrcntlen = 1024; ; intrcntlen *= 2) {
*intrcnts = reallocf(*intrcnts, intrcntlen);
if (*intrcnts == NULL)
err(1, "reallocf()");
if (mysysctl("hw.intrcnt", *intrcnts, &intrcntlen) == 0)
break;
}
}
return (intrcntlen / sizeof(unsigned long));
}
static void
print_intrcnts(unsigned long *intrcnts, unsigned long *old_intrcnts,
char *intrnames, unsigned int nintr, size_t istrnamlen, long long period_ms)
{
uint64_t inttotal, old_inttotal, total_count, total_rate;
unsigned long count, rate;
unsigned int i;
inttotal = 0;
old_inttotal = 0;
xo_open_list("interrupt");
for (i = 0; i < nintr; i++) {
if (intrnames[0] != '\0' && (*intrcnts != 0 || aflag)) {
count = *intrcnts - *old_intrcnts;
rate = ((uint64_t)count * 1000 + period_ms / 2) / period_ms;
xo_open_instance("interrupt");
xo_emit("{d:name/%-*s}{ket:name/%s} "
"{:total/%20lu} {:rate/%10lu}\n",
(int)istrnamlen, intrnames, intrnames, count, rate);
xo_close_instance("interrupt");
}
intrnames += strlen(intrnames) + 1;
inttotal += *intrcnts++;
old_inttotal += *old_intrcnts++;
}
total_count = inttotal - old_inttotal;
total_rate = (total_count * 1000 + period_ms / 2) / period_ms;
xo_close_list("interrupt");
xo_emit("{L:/%-*s} {:total-interrupts/%20ju} "
"{:total-rate/%10ju}\n", (int)istrnamlen,
"Total", (uintmax_t)total_count, (uintmax_t)total_rate);
}
static void
dointr(unsigned int interval, int reps)
{
unsigned long *intrcnts, *old_intrcnts;
char *intrname, *intrnames;
long long period_ms, old_uptime, uptime;
size_t clen, inamlen, istrnamlen;
uintptr_t kaddr;
unsigned int nintr;
old_intrcnts = NULL;
uptime = getuptime();
/* Get the names of each interrupt source */
if (kd != NULL) {
kread(X_SINTRNAMES, &inamlen, sizeof(inamlen));
if ((intrnames = malloc(inamlen)) == NULL)
xo_err(1, "malloc()");
if (namelist[X_NINTRCNT].n_type == 0)
kread(X_INTRNAMES, intrnames, inamlen);
else {
kread(X_INTRNAMES, &kaddr, sizeof(kaddr));
kreadptr(kaddr, intrnames, inamlen);
}
} else {
for (intrnames = NULL, inamlen = 1024; ; inamlen *= 2) {
if ((intrnames = reallocf(intrnames, inamlen)) == NULL)
xo_err(1, "reallocf()");
if (mysysctl("hw.intrnames", intrnames, &inamlen) == 0)
break;
}
}
/* Determine the length of the longest interrupt name */
intrname = intrnames;
istrnamlen = strlen("interrupt");
while (intrname < intrnames + inamlen) {
clen = strlen(intrname);
if (clen > istrnamlen)
istrnamlen = clen;
intrname += strlen(intrname) + 1;
}
xo_emit("{T:/%-*s} {T:/%20s} {T:/%10s}\n",
(int)istrnamlen, "interrupt", "total", "rate");
/*
* Loop reps times printing differential interrupt counts. If reps is
* zero, then run just once, printing total counts
*/
xo_open_container("interrupt-statistics");
period_ms = uptime / 1000000;
while(1) {
nintr = read_intrcnts(&intrcnts);
/*
* Initialize old_intrcnts to 0 for the first pass, so
* print_intrcnts will print total interrupts since boot
*/
if (old_intrcnts == NULL) {
old_intrcnts = calloc(nintr, sizeof(unsigned long));
if (old_intrcnts == NULL)
xo_err(1, "calloc()");
}
print_intrcnts(intrcnts, old_intrcnts, intrnames, nintr,
istrnamlen, period_ms);
xo_flush();
free(old_intrcnts);
old_intrcnts = intrcnts;
if (reps >= 0 && --reps <= 0)
break;
usleep(interval * 1000);
old_uptime = uptime;
uptime = getuptime();
period_ms = (uptime - old_uptime) / 1000000;
}
xo_close_container("interrupt-statistics");
}
static void
domemstat_malloc(void)
{
struct memory_type_list *mtlp;
struct memory_type *mtp;
size_t i, zones;
int error, first;
mtlp = memstat_mtl_alloc();
if (mtlp == NULL) {
xo_warn("memstat_mtl_alloc");
return;
}
if (kd == NULL) {
if (memstat_sysctl_malloc(mtlp, 0) < 0) {
xo_warnx("memstat_sysctl_malloc: %s",
memstat_strerror(memstat_mtl_geterror(mtlp)));
return;
}
} else {
if (memstat_kvm_malloc(mtlp, kd) < 0) {
error = memstat_mtl_geterror(mtlp);
if (error == MEMSTAT_ERROR_KVM)
xo_warnx("memstat_kvm_malloc: %s",
kvm_geterr(kd));
else
xo_warnx("memstat_kvm_malloc: %s",
memstat_strerror(error));
}
}
xo_open_container("malloc-statistics");
xo_emit("{T:/%16s} {T:/%4s} {T:/%5s} {T:/%3s} {T:Size(s)}\n",
"Type", "Use", "Memory", "Req");
xo_open_list("memory");
zones = memstat_malloc_zone_get_count();
for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
mtp = memstat_mtl_next(mtp)) {
if (memstat_get_numallocs(mtp) == 0 &&
memstat_get_count(mtp) == 0)
continue;
xo_open_instance("memory");
xo_emit("{k:type/%16s/%s} "
"{[:4}{h,hn-decimal,hn-1000:in-use/%ju}{]:} "
"{[:5}{h,hn-decimal:memory-use/%ju}{]:} "
"{[:4}{h,hn-decimal,hn-1000:requests/%ju}{]:} ",
memstat_get_name(mtp), (uintmax_t)memstat_get_count(mtp),
(uintmax_t)memstat_get_bytes(mtp),
(uintmax_t)memstat_get_numallocs(mtp));
first = 1;
xo_open_list("size");
for (i = 0; i < zones; i++) {
if (memstat_malloc_zone_used(mtp, i)) {
if (!first)
xo_emit(",");
xo_emit("{lh:size/%d}", memstat_malloc_zone_get_size(i));
first = 0;
}
}
xo_close_list("size");
xo_close_instance("memory");
xo_emit("\n");
}
xo_close_list("memory");
xo_close_container("malloc-statistics");
memstat_mtl_free(mtlp);
}
static void
domemstat_zone(void)
{
struct memory_type_list *mtlp;
struct memory_type *mtp;
int error, len;
mtlp = memstat_mtl_alloc();
if (mtlp == NULL) {
xo_warn("memstat_mtl_alloc");
return;
}
if (kd == NULL) {
if (memstat_sysctl_uma(mtlp, 0) < 0) {
xo_warnx("memstat_sysctl_uma: %s",
memstat_strerror(memstat_mtl_geterror(mtlp)));
return;
}
} else {
if (memstat_kvm_uma(mtlp, kd) < 0) {
error = memstat_mtl_geterror(mtlp);
if (error == MEMSTAT_ERROR_KVM)
xo_warnx("memstat_kvm_uma: %s",
kvm_geterr(kd));
else
xo_warnx("memstat_kvm_uma: %s",
memstat_strerror(error));
}
}
xo_open_container("memory-zone-statistics");
xo_emit("{T:/%-19s} {T:/%7s} {T:/%7s} {T:/%8s} {T:/%8s} {T:/%8s} "
"{T:/%4s} {T:/%4s} {T:/%4s}\n", "ITEM", "SIZE",
"LIMIT", "USED", "FREE", "REQ", "FAIL", "SLEEP", "XDOM");
xo_open_list("zone");
for (mtp = memstat_mtl_first(mtlp); mtp != NULL;
mtp = memstat_mtl_next(mtp)) {
len = strlen(memstat_get_name(mtp));
xo_open_instance("zone");
xo_emit("{k:name/%s}:{d:size/%*ju}{e:size/%ju},"
"{:limit/%7ju},{:used/%8ju},"
"{:free/%8ju},{:requests/%8ju},"
"{:fail/%4ju},{:sleep/%4ju},{:xdomain/%4ju}\n",
memstat_get_name(mtp), MAX(1, 26 - len),
(uintmax_t)memstat_get_size(mtp),
(uintmax_t)memstat_get_size(mtp),
(uintmax_t)memstat_get_countlimit(mtp),
(uintmax_t)memstat_get_count(mtp),
(uintmax_t)memstat_get_free(mtp),
(uintmax_t)memstat_get_numallocs(mtp),
(uintmax_t)memstat_get_failures(mtp),
(uintmax_t)memstat_get_sleeps(mtp),
(uintmax_t)memstat_get_xdomain(mtp));
xo_close_instance("zone");
}
memstat_mtl_free(mtlp);
xo_close_list("zone");
xo_close_container("memory-zone-statistics");
}
static void
display_object(struct kinfo_vmobject *kvo)
{
const char *str;
xo_open_instance("object");
xo_emit("{:resident/%5ju} ", (uintmax_t)kvo->kvo_resident);
xo_emit("{:active/%5ju} ", (uintmax_t)kvo->kvo_active);
xo_emit("{:inactive/%5ju} ", (uintmax_t)kvo->kvo_inactive);
xo_emit("{:refcount/%3d} ", kvo->kvo_ref_count);
xo_emit("{:shadowcount/%3d} ", kvo->kvo_shadow_count);
#define MEMATTR_STR(type, val) \
if (kvo->kvo_memattr == (type)) { \
str = (val); \
} else
#ifdef VM_MEMATTR_UNCACHEABLE
MEMATTR_STR(VM_MEMATTR_UNCACHEABLE, "UC")
#endif
#ifdef VM_MEMATTR_WRITE_COMBINING
MEMATTR_STR(VM_MEMATTR_WRITE_COMBINING, "WC")
#endif
#ifdef VM_MEMATTR_WRITE_THROUGH
MEMATTR_STR(VM_MEMATTR_WRITE_THROUGH, "WT")
#endif
#ifdef VM_MEMATTR_WRITE_PROTECTED
MEMATTR_STR(VM_MEMATTR_WRITE_PROTECTED, "WP")
#endif
#ifdef VM_MEMATTR_WRITE_BACK
MEMATTR_STR(VM_MEMATTR_WRITE_BACK, "WB")
#endif
#ifdef VM_MEMATTR_WEAK_UNCACHEABLE
MEMATTR_STR(VM_MEMATTR_WEAK_UNCACHEABLE, "UC-")
#endif
#ifdef VM_MEMATTR_WB_WA
MEMATTR_STR(VM_MEMATTR_WB_WA, "WB")
#endif
#ifdef VM_MEMATTR_NOCACHE
MEMATTR_STR(VM_MEMATTR_NOCACHE, "NC")
#endif
#ifdef VM_MEMATTR_DEVICE
MEMATTR_STR(VM_MEMATTR_DEVICE, "DEV")
#endif
#ifdef VM_MEMATTR_DEVICE_NP
MEMATTR_STR(VM_MEMATTR_DEVICE, "NP")
#endif
#ifdef VM_MEMATTR_CACHEABLE
MEMATTR_STR(VM_MEMATTR_CACHEABLE, "C")
#endif
#ifdef VM_MEMATTR_PREFETCHABLE
MEMATTR_STR(VM_MEMATTR_PREFETCHABLE, "PRE")
#endif
{
str = "??";
}
#undef MEMATTR_STR
xo_emit("{:attribute/%-3s} ", str);
switch (kvo->kvo_type) {
case KVME_TYPE_NONE:
str = "--";
break;
case KVME_TYPE_DEFAULT:
str = "df";
break;
case KVME_TYPE_VNODE:
str = "vn";
break;
case KVME_TYPE_SWAP:
str = "sw";
break;
case KVME_TYPE_DEVICE:
str = "dv";
break;
case KVME_TYPE_PHYS:
str = "ph";
break;
case KVME_TYPE_DEAD:
str = "dd";
break;
case KVME_TYPE_SG:
str = "sg";
break;
case KVME_TYPE_MGTDEVICE:
str = "md";
break;
case KVME_TYPE_UNKNOWN:
default:
str = "??";
break;
}
xo_emit("{:type/%-2s} ", str);
xo_emit("{:path/%-s}\n", kvo->kvo_path);
xo_close_instance("object");
}
static void
doobjstat(void)
{
struct kinfo_vmobject *kvo;
int cnt, i;
kvo = kinfo_getvmobject(&cnt);
if (kvo == NULL) {
xo_warn("Failed to fetch VM object list");
return;
}
xo_emit("{T:RES/%5s} {T:ACT/%5s} {T:INACT/%5s} {T:REF/%3s} {T:SHD/%3s} "
"{T:CM/%3s} {T:TP/%2s} {T:PATH/%s}\n");
xo_open_list("object");
for (i = 0; i < cnt; i++)
display_object(&kvo[i]);
free(kvo);
xo_close_list("object");
}
/*
* kread reads something from the kernel, given its nlist index.
*/
static void
kreado(int nlx, void *addr, size_t size, size_t offset)
{
const char *sym;
if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
sym = namelist[nlx].n_name;
if (*sym == '_')
++sym;
xo_errx(1, "symbol %s not defined", sym);
}
if ((size_t)kvm_read(kd, namelist[nlx].n_value + offset, addr,
size) != size) {
sym = namelist[nlx].n_name;
if (*sym == '_')
++sym;
xo_errx(1, "%s: %s", sym, kvm_geterr(kd));
}
}
static void
kread(int nlx, void *addr, size_t size)
{
kreado(nlx, addr, size, 0);
}
static void
kreadptr(uintptr_t addr, void *buf, size_t size)
{
if ((size_t)kvm_read(kd, addr, buf, size) != size)
xo_errx(1, "%s", kvm_geterr(kd));
}
static void __dead2
usage(void)
{
xo_error("%s%s",
"usage: vmstat [-afHhimoPsz] [-M core [-N system]] [-c count] [-n devs]\n",
" [-p type,if,pass] [-w wait] [disks] [wait [count]]\n");
xo_finish();
exit(1);
}
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