freebsd-dev/usr.bin/procstat/procstat_cs.c
Scott Long cee9136cc6 Implement basic cpuset reporting in procstat via the -S flag.
Obtained from:	Netflix, Inc.
MFC after:	3 days
2015-03-10 09:41:48 +00:00

109 lines
3.3 KiB
C

/*-
* Copyright (c) 2007 Robert N. M. Watson
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/cpuset.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <err.h>
#include <errno.h>
#include <libprocstat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "procstat.h"
void
procstat_cs(struct procstat *procstat, struct kinfo_proc *kipp)
{
cpusetid_t cs;
cpuset_t mask;
struct kinfo_proc *kip;
unsigned int count, i;
int once, twice, lastcpu, cpu;
if (!hflag)
printf("%5s %6s %-16s %-16s %2s %4s %-7s\n", "PID",
"TID", "COMM", "TDNAME", "CPU", "CSID", "CPU MASK");
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++) {
kipp = &kip[i];
printf("%5d ", kipp->ki_pid);
printf("%6d ", kipp->ki_tid);
printf("%-16s ", strlen(kipp->ki_comm) ?
kipp->ki_comm : "-");
printf("%-16s ", (strlen(kipp->ki_tdname) &&
(strcmp(kipp->ki_comm, kipp->ki_tdname) != 0)) ?
kipp->ki_tdname : "-");
if (kipp->ki_oncpu != 255)
printf("%3d ", kipp->ki_oncpu);
else if (kipp->ki_lastcpu != 255)
printf("%3d ", kipp->ki_lastcpu);
else
printf("%3s ", "-");
if (cpuset_getid(CPU_LEVEL_CPUSET, CPU_WHICH_TID,
kipp->ki_tid, &cs) != 0) {
cs = CPUSET_INVALID;
}
printf("%4d ", cs);
if ((cs != CPUSET_INVALID) &&
(cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID,
kipp->ki_tid, sizeof(mask), &mask) == 0)) {
lastcpu = -1;
once = 0;
twice = 0;
for (cpu = 0; cpu < CPU_SETSIZE; cpu++) {
if (CPU_ISSET(cpu, &mask)) {
if (once == 0) {
printf("%d", cpu);
once = 1;
} else if (cpu == lastcpu + 1) {
twice = 1;
} else if (twice == 1) {
printf("-%d,%d", lastcpu, cpu);
twice = 0;
} else
printf(",%d", cpu);
lastcpu = cpu;
}
}
if (once && twice)
printf("-%d", lastcpu);
}
printf("\n");
}
procstat_freeprocs(procstat, kip);
}