flag to procstat. - Add an -H flag to request information about threads rather than processes when dumping statistics. Currently it is only used for -r to display resource usage for individual threads instead of the entire process. Reviewed by: kib (older version without -H) MFC after: 1 month
161 lines
4.3 KiB
C
161 lines
4.3 KiB
C
/*-
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* Copyright (c) 2012 Advanced Computing Technologies LLC
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* Written by: John H. Baldwin <jhb@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/user.h>
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#include <libprocstat.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <libutil.h>
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#include "procstat.h"
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static struct {
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const char *ri_name;
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bool ri_humanize;
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int ri_scale;
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} rusage_info[] = {
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{ "maximum RSS", true, 1 },
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{ "integral shared memory", true, 1 },
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{ "integral unshared data", true, 1 },
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{ "integral unshared stack", true, 1 },
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{ "page reclaims", false, 0 },
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{ "page faults", false, 0 },
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{ "swaps", false, 0 },
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{ "block reads", false, 0 },
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{ "block writes", false, 0 },
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{ "messages sent", false, 0 },
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{ "messages received", false, 0 },
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{ "signals received", false, 0 },
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{ "voluntary context switches", false, 0 },
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{ "involuntary context switches", false, 0 }
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};
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/* xxx days hh:mm:ss.uuuuuu */
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static const char *
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format_time(struct timeval *tv)
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{
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static char buffer[32];
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int days, hours, minutes, seconds, used;
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minutes = tv->tv_sec / 60;
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seconds = tv->tv_sec % 60;
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hours = minutes / 60;
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minutes %= 60;
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days = hours / 24;
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hours %= 24;
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used = 0;
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if (days == 1)
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used += snprintf(buffer, sizeof(buffer), "1 day ");
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else if (days > 0)
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used += snprintf(buffer, sizeof(buffer), "%u days ", days);
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snprintf(buffer + used, sizeof(buffer) - used, "%02u:%02u:%02u.%06u ",
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hours, minutes, seconds, (unsigned int)tv->tv_usec);
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return (buffer);
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}
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static const char *
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format_value(long value, bool humanize, int scale)
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{
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static char buffer[14];
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if (scale != 0)
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value <<= scale * 10;
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if (humanize)
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humanize_number(buffer, sizeof(buffer), value, "B",
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scale, HN_DECIMAL);
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else
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snprintf(buffer, sizeof(buffer), "%ld ", value);
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return (buffer);
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}
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static void
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print_prefix(struct kinfo_proc *kipp)
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{
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printf("%5d ", kipp->ki_pid);
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if (Hflag)
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printf("%6d ", kipp->ki_tid);
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printf("%-16s ", kipp->ki_comm);
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}
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static void
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print_rusage(struct kinfo_proc *kipp)
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{
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long *lp;
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unsigned int i;
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print_prefix(kipp);
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printf("%-14s %32s\n", "user time",
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format_time(&kipp->ki_rusage.ru_utime));
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print_prefix(kipp);
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printf("%-14s %32s\n", "system time",
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format_time(&kipp->ki_rusage.ru_stime));
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lp = &kipp->ki_rusage.ru_maxrss;
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for (i = 0; i < nitems(rusage_info); i++) {
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print_prefix(kipp);
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printf("%-32s %14s\n", rusage_info[i].ri_name,
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format_value(*lp, rusage_info[i].ri_humanize,
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rusage_info[i].ri_scale));
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lp++;
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}
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}
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void
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procstat_rusage(struct procstat *procstat, struct kinfo_proc *kipp)
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{
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struct kinfo_proc *kip;
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unsigned int count, i;
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if (!hflag) {
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printf("%5s ", "PID");
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if (Hflag)
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printf("%6s ", "TID");
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printf("%-16s %-32s %14s\n", "COMM", "TYPE", "VALUE ");
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}
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if (!Hflag) {
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print_rusage(kipp);
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return;
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}
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kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
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kipp->ki_pid, &count);
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if (kip == NULL)
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return;
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kinfo_proc_sort(kip, count);
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for (i = 0; i < count; i++)
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print_rusage(&kip[i]);
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procstat_freeprocs(procstat, kip);
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}
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