freebsd-dev/usr.bin/procstat/procstat_rusage.c

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/*-
* Copyright (c) 2012 Hudson River Trading LLC
* Written by: John H. Baldwin <jhb@FreeBSD.org>
* Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <libprocstat.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <libutil.h>
#include "procstat.h"
static struct {
const char *ri_name;
bool ri_humanize;
int ri_scale;
} rusage_info[] = {
{ "maximum RSS", true, 1 },
{ "integral shared memory", true, 1 },
{ "integral unshared data", true, 1 },
{ "integral unshared stack", true, 1 },
{ "page reclaims", false, 0 },
{ "page faults", false, 0 },
{ "swaps", false, 0 },
{ "block reads", false, 0 },
{ "block writes", false, 0 },
{ "messages sent", false, 0 },
{ "messages received", false, 0 },
{ "signals received", false, 0 },
{ "voluntary context switches", false, 0 },
{ "involuntary context switches", false, 0 }
};
/* xxx days hh:mm:ss.uuuuuu */
static const char *
format_time(struct timeval *tv)
{
static char buffer[32];
int days, hours, minutes, seconds, used;
minutes = tv->tv_sec / 60;
seconds = tv->tv_sec % 60;
hours = minutes / 60;
minutes %= 60;
days = hours / 24;
hours %= 24;
used = 0;
if (days == 1)
used += snprintf(buffer, sizeof(buffer), "1 day ");
else if (days > 0)
used += snprintf(buffer, sizeof(buffer), "%u days ", days);
snprintf(buffer + used, sizeof(buffer) - used, "%02u:%02u:%02u.%06u",
hours, minutes, seconds, (unsigned int)tv->tv_usec);
return (buffer);
}
static const char *
format_value(long value, bool humanize, int scale)
{
static char buffer[14];
if (scale != 0)
value <<= scale * 10;
if (humanize)
humanize_number(buffer, sizeof(buffer), value, "B",
scale, HN_DECIMAL);
else
snprintf(buffer, sizeof(buffer), "%ld ", value);
return (buffer);
}
static void
print_prefix(struct kinfo_proc *kipp)
{
xo_emit("{d:process_id/%5d/%d} ", kipp->ki_pid);
if ((procstat_opts & PS_OPT_PERTHREAD) != 0)
xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid);
xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm);
}
static void
print_rusage(struct kinfo_proc *kipp)
{
long *lp;
unsigned int i;
char *field, *threadid;
print_prefix(kipp);
xo_emit("{d:resource/%-14s} {d:usage/%29s}{P: }\n", "user time",
format_time(&kipp->ki_rusage.ru_utime));
print_prefix(kipp);
xo_emit("{d:resource/%-14s} {d:usage/%29s}{P: }\n", "system time",
format_time(&kipp->ki_rusage.ru_stime));
if ((procstat_opts & PS_OPT_PERTHREAD) != 0) {
asprintf(&threadid, "%d", kipp->ki_tid);
if (threadid == NULL)
xo_errc(1, ENOMEM,
"Failed to allocate memory in print_rusage()");
xo_open_container(threadid);
xo_emit("{e:thread_id/%d}", kipp->ki_tid);
} else {
xo_emit("{e:process_id/%d}", kipp->ki_pid);
xo_emit("{e:command/%s}", kipp->ki_comm);
}
xo_emit("{e:user time/%s}", format_time(&kipp->ki_rusage.ru_utime));
xo_emit("{e:system time/%s}", format_time(&kipp->ki_rusage.ru_stime));
lp = &kipp->ki_rusage.ru_maxrss;
for (i = 0; i < nitems(rusage_info); i++) {
print_prefix(kipp);
asprintf(&field, "{e:%s/%%D}", rusage_info[i].ri_name);
if (field == NULL)
xo_errc(1, ENOMEM,
"Failed to allocate memory in print_rusage()");
xo_emit(field, *lp);
free(field);
xo_emit("{d:resource/%-32s} {d:usage/%14s}\n",
rusage_info[i].ri_name,
format_value(*lp, rusage_info[i].ri_humanize,
rusage_info[i].ri_scale));
lp++;
}
if ((procstat_opts & PS_OPT_PERTHREAD) != 0) {
xo_close_container(threadid);
free(threadid);
}
}
void
procstat_rusage(struct procstat *procstat, struct kinfo_proc *kipp)
{
struct kinfo_proc *kip;
unsigned int count, i;
if ((procstat_opts & PS_OPT_NOHEADER) == 0) {
xo_emit("{d:ta/%5s} ", "PID");
if ((procstat_opts & PS_OPT_PERTHREAD) != 0)
xo_emit("{d:tb/%6s} ", "TID");
xo_emit("{d:tc/%-16s %-32s %14s}\n", "COMM", "RESOURCE",
"VALUE ");
}
if ((procstat_opts & PS_OPT_PERTHREAD) == 0) {
print_rusage(kipp);
return;
}
xo_emit("{e:process_id/%d}", kipp->ki_pid);
xo_emit("{e:command/%s}", kipp->ki_comm);
xo_open_container("threads");
kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
kipp->ki_pid, &count);
if (kip == NULL)
return;
kinfo_proc_sort(kip, count);
for (i = 0; i < count; i++) {
print_rusage(&kip[i]);
}
xo_close_container("threads");
procstat_freeprocs(procstat, kip);
}