917 lines
24 KiB
C
917 lines
24 KiB
C
/* $NetBSD: vmstat.c,v 1.33 1996/11/29 19:40:56 thorpej Exp $ */
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/*
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* Copyright (c) 1980, 1986, 1991, 1993
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* The Regents of the University of California. 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1980, 1986, 1991, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
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#else
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static char rcsid[] = "$NetBSD: vmstat.c,v 1.33 1996/11/29 19:40:56 thorpej Exp $";
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/dkstat.h>
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#include <sys/buf.h>
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#include <sys/namei.h>
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#include <sys/malloc.h>
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#include <sys/fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/sysctl.h>
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#include <sys/device.h>
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#include <vm/vm.h>
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#include <time.h>
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#include <nlist.h>
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#include <kvm.h>
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#include <errno.h>
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#include <unistd.h>
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#include <signal.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include <paths.h>
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#include <limits.h>
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#include "dkstats.h"
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#define NEWVM /* XXX till old has been updated or purged */
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struct nlist namelist[] = {
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#define X_CPTIME 0
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{ "_cp_time" },
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#define X_SUM 1
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{ "_cnt" },
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#define X_BOOTTIME 2
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{ "_boottime" },
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#define X_HZ 3
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{ "_hz" },
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#define X_STATHZ 4
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{ "_stathz" },
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#define X_NCHSTATS 5
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{ "_nchstats" },
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#define X_INTRNAMES 6
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{ "_intrnames" },
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#define X_EINTRNAMES 7
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{ "_eintrnames" },
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#define X_INTRCNT 8
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{ "_intrcnt" },
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#define X_EINTRCNT 9
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{ "_eintrcnt" },
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#define X_KMEMSTAT 10
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{ "_kmemstats" },
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#define X_KMEMBUCKETS 11
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{ "_bucket" },
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#define X_ALLEVENTS 12
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{ "_allevents" },
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#ifdef notdef
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#define X_DEFICIT 13
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{ "_deficit" },
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#define X_FORKSTAT 14
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{ "_forkstat" },
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#define X_REC 15
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{ "_rectime" },
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#define X_PGIN 16
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{ "_pgintime" },
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#define X_XSTATS 17
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{ "_xstats" },
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#define X_END 18
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#else
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#define X_END 13
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#endif
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#ifdef tahoe
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#define X_VBDINIT (X_END)
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{ "_vbdinit" },
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#define X_CKEYSTATS (X_END+1)
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{ "_ckeystats" },
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#define X_DKEYSTATS (X_END+2)
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{ "_dkeystats" },
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#endif
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#if defined(pc532)
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#define X_IVT (X_END)
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{ "_ivt" },
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#endif
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{ "" },
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};
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/* Objects defined in dkstats.c */
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extern struct _disk cur;
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extern char **dr_name;
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extern int *dk_select, dk_ndrive;
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struct vmmeter sum, osum;
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int ndrives;
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int winlines = 20;
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kvm_t *kd;
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#define FORKSTAT 0x01
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#define INTRSTAT 0x02
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#define MEMSTAT 0x04
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#define SUMSTAT 0x08
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#define TIMESTAT 0x10
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#define VMSTAT 0x20
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void cpustats __P((void));
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void dkstats __P((void));
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void dointr __P((void));
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void domem __P((void));
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void dosum __P((void));
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void dovmstat __P((u_int, int));
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void kread __P((int, void *, size_t));
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void usage __P((void));
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#ifdef notdef
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void dotimes __P((void));
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void doforkst __P((void));
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#endif
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char **choosedrives __P((char **));
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/* Namelist and memory file names. */
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char *nlistf, *memf;
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main(argc, argv)
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register int argc;
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register char **argv;
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{
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extern int optind;
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extern char *optarg;
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register int c, todo;
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u_int interval;
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int reps;
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char errbuf[_POSIX2_LINE_MAX];
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memf = nlistf = NULL;
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interval = reps = todo = 0;
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while ((c = getopt(argc, argv, "c:fiM:mN:stw:")) != EOF) {
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switch (c) {
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case 'c':
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reps = atoi(optarg);
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break;
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#ifndef notdef
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case 'f':
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todo |= FORKSTAT;
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break;
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#endif
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case 'i':
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todo |= INTRSTAT;
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break;
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case 'M':
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memf = optarg;
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break;
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case 'm':
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todo |= MEMSTAT;
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break;
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case 'N':
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nlistf = optarg;
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break;
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case 's':
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todo |= SUMSTAT;
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break;
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#ifndef notdef
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case 't':
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todo |= TIMESTAT;
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break;
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#endif
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case 'w':
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interval = atoi(optarg);
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break;
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case '?':
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (todo == 0)
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todo = VMSTAT;
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/*
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* Discard setgid privileges if not the running kernel so that bad
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* guys can't print interesting stuff from kernel memory.
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*/
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if (nlistf != NULL || memf != NULL)
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setgid(getgid());
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kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
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if (kd == 0) {
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(void)fprintf(stderr,
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"vmstat: kvm_openfiles: %s\n", errbuf);
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exit(1);
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}
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if ((c = kvm_nlist(kd, namelist)) != 0) {
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if (c > 0) {
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(void)fprintf(stderr,
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"vmstat: undefined symbols:");
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for (c = 0;
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c < sizeof(namelist)/sizeof(namelist[0]); c++)
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if (namelist[c].n_type == 0)
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fprintf(stderr, " %s",
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namelist[c].n_name);
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(void)fputc('\n', stderr);
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} else
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(void)fprintf(stderr, "vmstat: kvm_nlist: %s\n",
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kvm_geterr(kd));
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exit(1);
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}
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if (todo & VMSTAT) {
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struct winsize winsize;
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dkinit(0); /* Initialize disk stats, no disks selected. */
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argv = choosedrives(argv); /* Select disks. */
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winsize.ws_row = 0;
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(void) ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&winsize);
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if (winsize.ws_row > 0)
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winlines = winsize.ws_row;
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}
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#define BACKWARD_COMPATIBILITY
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#ifdef BACKWARD_COMPATIBILITY
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if (*argv) {
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interval = atoi(*argv);
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if (*++argv)
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reps = atoi(*argv);
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}
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#endif
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if (interval) {
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if (!reps)
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reps = -1;
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} else if (reps)
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interval = 1;
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#ifdef notdef
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if (todo & FORKSTAT)
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doforkst();
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#endif
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if (todo & MEMSTAT)
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domem();
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if (todo & SUMSTAT)
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dosum();
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#ifdef notdef
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if (todo & TIMESTAT)
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dotimes();
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#endif
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if (todo & INTRSTAT)
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dointr();
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if (todo & VMSTAT)
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dovmstat(interval, reps);
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exit(0);
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}
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char **
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choosedrives(argv)
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char **argv;
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{
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register int i;
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register char **cp;
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char buf[30];
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/*
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* Choose drives to be displayed. Priority goes to (in order) drives
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* supplied as arguments, default drives. If everything isn't filled
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* in and there are drives not taken care of, display the first few
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* that fit.
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*/
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#define BACKWARD_COMPATIBILITY
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for (ndrives = 0; *argv; ++argv) {
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#ifdef BACKWARD_COMPATIBILITY
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if (isdigit(**argv))
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break;
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#endif
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for (i = 0; i < dk_ndrive; i++) {
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if (strcmp(dr_name[i], *argv))
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continue;
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dk_select[i] = 1;
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++ndrives;
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break;
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}
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}
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for (i = 0; i < dk_ndrive && ndrives < 4; i++) {
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if (dk_select[i])
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continue;
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dk_select[i] = 1;
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++ndrives;
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}
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return(argv);
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}
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long
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getuptime()
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{
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static time_t now;
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static struct timeval boottime;
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time_t uptime;
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if (boottime.tv_sec == 0)
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kread(X_BOOTTIME, &boottime, sizeof(boottime));
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(void)time(&now);
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uptime = now - boottime.tv_sec;
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if (uptime <= 0 || uptime > 60*60*24*365*10) {
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(void)fprintf(stderr,
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"vmstat: time makes no sense; namelist must be wrong.\n");
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exit(1);
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}
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return(uptime);
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}
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int hz, hdrcnt;
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void
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dovmstat(interval, reps)
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u_int interval;
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int reps;
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{
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struct vmtotal total;
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time_t uptime, halfuptime;
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void needhdr();
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int mib[2];
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size_t size;
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uptime = getuptime();
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halfuptime = uptime / 2;
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(void)signal(SIGCONT, needhdr);
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if (namelist[X_STATHZ].n_type != 0 && namelist[X_STATHZ].n_value != 0)
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kread(X_STATHZ, &hz, sizeof(hz));
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if (!hz)
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kread(X_HZ, &hz, sizeof(hz));
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for (hdrcnt = 1;;) {
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if (!--hdrcnt)
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printhdr();
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/* Read new disk statistics */
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dkreadstats();
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kread(X_SUM, &sum, sizeof(sum));
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size = sizeof(total);
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mib[0] = CTL_VM;
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mib[1] = VM_METER;
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if (sysctl(mib, 2, &total, &size, NULL, 0) < 0) {
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printf("Can't get kerninfo: %s\n", strerror(errno));
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bzero(&total, sizeof(total));
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}
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(void)printf("%2d%2d%2d",
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total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
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#define pgtok(a) ((a) * (sum.v_page_size >> 10))
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#define rate(x) (((x) + halfuptime) / uptime) /* round */
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(void)printf("%6ld%6ld ",
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pgtok(total.t_avm), pgtok(total.t_free));
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#ifdef NEWVM
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(void)printf("%4lu ", rate(sum.v_faults - osum.v_faults));
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(void)printf("%3lu ",
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rate(sum.v_reactivated - osum.v_reactivated));
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(void)printf("%3lu ", rate(sum.v_pageins - osum.v_pageins));
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(void)printf("%3lu %3lu ",
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rate(sum.v_pageouts - osum.v_pageouts), 0);
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#else
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(void)printf("%3lu %2lu ",
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rate(sum.v_pgrec - (sum.v_xsfrec+sum.v_xifrec) -
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(osum.v_pgrec - (osum.v_xsfrec+osum.v_xifrec))),
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rate(sum.v_xsfrec + sum.v_xifrec -
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osum.v_xsfrec - osum.v_xifrec));
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(void)printf("%3lu ",
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rate(pgtok(sum.v_pgpgin - osum.v_pgpgin)));
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(void)printf("%3lu %3lu ",
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rate(pgtok(sum.v_pgpgout - osum.v_pgpgout)),
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rate(pgtok(sum.v_dfree - osum.v_dfree)));
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(void)printf("%3d ", pgtok(deficit));
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#endif
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(void)printf("%3lu ", rate(sum.v_scan - osum.v_scan));
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dkstats();
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(void)printf("%4lu %4lu %3lu ",
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rate(sum.v_intr - osum.v_intr),
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rate(sum.v_syscall - osum.v_syscall),
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rate(sum.v_swtch - osum.v_swtch));
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cpustats();
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(void)printf("\n");
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(void)fflush(stdout);
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if (reps >= 0 && --reps <= 0)
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break;
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osum = sum;
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uptime = interval;
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/*
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* We round upward to avoid losing low-frequency events
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* (i.e., >= 1 per interval but < 1 per second).
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*/
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halfuptime = uptime == 1 ? 0 : (uptime + 1) / 2;
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(void)sleep(interval);
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}
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}
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printhdr()
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{
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register int i;
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(void)printf(" procs memory page%*s", 20, "");
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if (ndrives > 0)
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#ifdef NEWVM
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(void)printf("%s %*sfaults cpu\n",
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((ndrives > 1) ? "disks" : "disk"),
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#else
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(void)printf("disks %*sfaults cpu\n",
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#endif
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((ndrives > 1) ? ndrives * 3 - 4 : 0), "");
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else
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#ifdef NEWVM
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(void)printf("%*s faults cpu\n",
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#else
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(void)printf("%*s faults cpu\n",
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#endif
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ndrives * 3, "");
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#ifdef NEWVM
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(void)printf(" r b w avm fre flt re pi po fr sr ");
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#else
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(void)printf(" r b w avm fre re at pi po fr de sr ");
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#endif
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for (i = 0; i < dk_ndrive; i++)
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if (dk_select[i])
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(void)printf("%c%c ", dr_name[i][0],
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dr_name[i][strlen(dr_name[i]) - 1]);
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(void)printf(" in sy cs us sy id\n");
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hdrcnt = winlines - 2;
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}
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/*
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* Force a header to be prepended to the next output.
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*/
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void
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needhdr()
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{
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hdrcnt = 1;
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}
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#ifdef notdef
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void
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dotimes()
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{
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u_int pgintime, rectime;
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kread(X_REC, &rectime, sizeof(rectime));
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kread(X_PGIN, &pgintime, sizeof(pgintime));
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kread(X_SUM, &sum, sizeof(sum));
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(void)printf("%u reclaims, %u total time (usec)\n",
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sum.v_pgrec, rectime);
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(void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec);
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(void)printf("\n");
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(void)printf("%u page ins, %u total time (msec)\n",
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sum.v_pgin, pgintime / 10);
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(void)printf("average: %8.1f msec / page in\n",
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pgintime / (sum.v_pgin * 10.0));
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}
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#endif
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pct(top, bot)
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long top, bot;
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{
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long ans;
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if (bot == 0)
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return(0);
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ans = (quad_t)top * 100 / bot;
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return (ans);
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}
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#define PCT(top, bot) pct((long)(top), (long)(bot))
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#if defined(tahoe)
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#include <machine/cpu.h>
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#endif
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void
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dosum()
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{
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struct nchstats nchstats;
|
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#ifndef NEWVM
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struct xstats xstats;
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#endif
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long nchtotal;
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#if defined(tahoe)
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struct keystats keystats;
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#endif
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kread(X_SUM, &sum, sizeof(sum));
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(void)printf("%9u cpu context switches\n", sum.v_swtch);
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(void)printf("%9u device interrupts\n", sum.v_intr);
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(void)printf("%9u software interrupts\n", sum.v_soft);
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(void)printf("%9u traps\n", sum.v_trap);
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(void)printf("%9u system calls\n", sum.v_syscall);
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(void)printf("%9u total faults taken\n", sum.v_faults);
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(void)printf("%9u swap ins\n", sum.v_swpin);
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(void)printf("%9u swap outs\n", sum.v_swpout);
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(void)printf("%9u pages swapped in\n", sum.v_pswpin / CLSIZE);
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(void)printf("%9u pages swapped out\n", sum.v_pswpout / CLSIZE);
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(void)printf("%9u page ins\n", sum.v_pageins);
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(void)printf("%9u page outs\n", sum.v_pageouts);
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(void)printf("%9u pages paged in\n", sum.v_pgpgin);
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(void)printf("%9u pages paged out\n", sum.v_pgpgout);
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(void)printf("%9u pages reactivated\n", sum.v_reactivated);
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(void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
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(void)printf("%9u zero fill pages created\n", sum.v_nzfod / CLSIZE);
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(void)printf("%9u zero fill page faults\n", sum.v_zfod / CLSIZE);
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(void)printf("%9u pages examined by the clock daemon\n", sum.v_scan);
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(void)printf("%9u revolutions of the clock hand\n", sum.v_rev);
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#ifdef NEWVM
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(void)printf("%9u VM object cache lookups\n", sum.v_lookups);
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(void)printf("%9u VM object hits\n", sum.v_hits);
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(void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
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(void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
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(void)printf("%9u pages freed by daemon\n", sum.v_dfree);
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(void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
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(void)printf("%9u pages free\n", sum.v_free_count);
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(void)printf("%9u pages wired down\n", sum.v_wire_count);
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(void)printf("%9u pages active\n", sum.v_active_count);
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(void)printf("%9u pages inactive\n", sum.v_inactive_count);
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(void)printf("%9u bytes per page\n", sum.v_page_size);
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#else
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(void)printf("%9u sequential process pages freed\n", sum.v_seqfree);
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(void)printf("%9u total reclaims (%d%% fast)\n", sum.v_pgrec,
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PCT(sum.v_fastpgrec, sum.v_pgrec));
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(void)printf("%9u reclaims from free list\n", sum.v_pgfrec);
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(void)printf("%9u executable fill pages created\n",
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sum.v_nexfod / CLSIZE);
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(void)printf("%9u executable fill page faults\n",
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sum.v_exfod / CLSIZE);
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(void)printf("%9u swap text pages found in free list\n",
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sum.v_xsfrec);
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(void)printf("%9u inode text pages found in free list\n",
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sum.v_xifrec);
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(void)printf("%9u file fill pages created\n", sum.v_nvrfod / CLSIZE);
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(void)printf("%9u file fill page faults\n", sum.v_vrfod / CLSIZE);
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(void)printf("%9u pages freed by the clock daemon\n",
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sum.v_dfree / CLSIZE);
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#endif
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kread(X_NCHSTATS, &nchstats, sizeof(nchstats));
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nchtotal = nchstats.ncs_goodhits + nchstats.ncs_neghits +
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nchstats.ncs_badhits + nchstats.ncs_falsehits +
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nchstats.ncs_miss + nchstats.ncs_long;
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(void)printf("%9ld total name lookups\n", nchtotal);
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(void)printf(
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"%9s cache hits (%d%% pos + %d%% neg) system %d%% per-process\n",
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"", PCT(nchstats.ncs_goodhits, nchtotal),
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PCT(nchstats.ncs_neghits, nchtotal),
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PCT(nchstats.ncs_pass2, nchtotal));
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(void)printf("%9s deletions %d%%, falsehits %d%%, toolong %d%%\n", "",
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PCT(nchstats.ncs_badhits, nchtotal),
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PCT(nchstats.ncs_falsehits, nchtotal),
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PCT(nchstats.ncs_long, nchtotal));
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#ifndef NEWVM
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kread(X_XSTATS, &xstats, sizeof(xstats));
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(void)printf("%9lu total calls to xalloc (cache hits %d%%)\n",
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xstats.alloc, PCT(xstats.alloc_cachehit, xstats.alloc));
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(void)printf("%9s sticky %lu flushed %lu unused %lu\n", "",
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xstats.alloc_inuse, xstats.alloc_cacheflush, xstats.alloc_unused);
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(void)printf("%9lu total calls to xfree", xstats.free);
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(void)printf(" (sticky %lu cached %lu swapped %lu)\n",
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xstats.free_inuse, xstats.free_cache, xstats.free_cacheswap);
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#endif
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#if defined(tahoe)
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kread(X_CKEYSTATS, &keystats, sizeof(keystats));
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(void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n",
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keystats.ks_allocs, "code cache keys allocated",
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PCT(keystats.ks_allocfree, keystats.ks_allocs),
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PCT(keystats.ks_norefs, keystats.ks_allocs),
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PCT(keystats.ks_taken, keystats.ks_allocs),
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PCT(keystats.ks_shared, keystats.ks_allocs));
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kread(X_DKEYSTATS, &keystats, sizeof(keystats));
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(void)printf("%9d %s (free %d%% norefs %d%% taken %d%% shared %d%%)\n",
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keystats.ks_allocs, "data cache keys allocated",
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PCT(keystats.ks_allocfree, keystats.ks_allocs),
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PCT(keystats.ks_norefs, keystats.ks_allocs),
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PCT(keystats.ks_taken, keystats.ks_allocs),
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PCT(keystats.ks_shared, keystats.ks_allocs));
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#endif
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}
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#ifdef notdef
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void
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doforkst()
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{
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struct forkstat fks;
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kread(X_FORKSTAT, &fks, sizeof(struct forkstat));
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(void)printf("%d forks, %d pages, average %.2f\n",
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fks.cntfork, fks.sizfork, (double)fks.sizfork / fks.cntfork);
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(void)printf("%d vforks, %d pages, average %.2f\n",
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fks.cntvfork, fks.sizvfork, (double)fks.sizvfork / fks.cntvfork);
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}
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#endif
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void
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dkstats()
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{
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register int dn, state;
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double etime;
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long tmp;
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/* Calculate disk stat deltas. */
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dkswap();
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etime = 0;
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for (state = 0; state < CPUSTATES; ++state) {
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etime += cur.cp_time[state];
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}
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if (etime == 0)
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etime = 1;
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etime /= hz;
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for (dn = 0; dn < dk_ndrive; ++dn) {
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if (!dk_select[dn])
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continue;
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(void)printf("%2.0f ", cur.dk_xfer[dn] / etime);
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}
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}
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void
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cpustats()
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{
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register int state;
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double pct, total;
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total = 0;
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for (state = 0; state < CPUSTATES; ++state)
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total += cur.cp_time[state];
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if (total)
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pct = 100 / total;
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else
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pct = 0;
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(void)printf("%2.0f ", (cur.cp_time[CP_USER] + cur.cp_time[CP_NICE]) * pct);
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(void)printf("%2.0f ", (cur.cp_time[CP_SYS] + cur.cp_time[CP_INTR]) * pct);
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(void)printf("%2.0f", cur.cp_time[CP_IDLE] * pct);
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}
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#if defined(pc532)
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/* To get struct iv ...*/
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#define _KERNEL
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#include <machine/psl.h>
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#undef _KERNEL
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void
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dointr()
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{
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register long i, j, inttotal, uptime;
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static char iname[64];
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struct iv ivt[32], *ivp = ivt;
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iname[63] = '\0';
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uptime = getuptime();
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kread(X_IVT, ivp, sizeof(ivt));
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for (i = 0; i < 2; i++) {
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(void)printf("%sware interrupts:\n", i ? "\nsoft" : "hard");
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(void)printf("interrupt total rate\n");
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inttotal = 0;
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for (j = 0; j < 16; j++, ivp++) {
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if (ivp->iv_vec && ivp->iv_use && ivp->iv_cnt) {
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if (kvm_read(kd, (u_long)ivp->iv_use, iname, 63) != 63) {
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(void)fprintf(stderr, "vmstat: iv_use: %s\n",
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kvm_geterr(kd));
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exit(1);
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}
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(void)printf("%-12s %8ld %8ld\n", iname,
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ivp->iv_cnt, ivp->iv_cnt / uptime);
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inttotal += ivp->iv_cnt;
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}
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}
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(void)printf("Total %8ld %8ld\n",
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inttotal, inttotal / uptime);
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}
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}
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#else
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void
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dointr()
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{
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register long *intrcnt, inttotal, uptime;
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register int nintr, inamlen;
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register char *intrname;
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struct evcntlist allevents;
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struct evcnt evcnt, *evptr;
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struct device dev;
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uptime = getuptime();
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nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value;
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inamlen =
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namelist[X_EINTRNAMES].n_value - namelist[X_INTRNAMES].n_value;
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intrcnt = malloc((size_t)nintr);
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intrname = malloc((size_t)inamlen);
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if (intrcnt == NULL || intrname == NULL) {
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(void)fprintf(stderr, "vmstat: %s.\n", strerror(errno));
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exit(1);
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}
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kread(X_INTRCNT, intrcnt, (size_t)nintr);
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kread(X_INTRNAMES, intrname, (size_t)inamlen);
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(void)printf("interrupt total rate\n");
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inttotal = 0;
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nintr /= sizeof(long);
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while (--nintr >= 0) {
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if (*intrcnt)
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(void)printf("%-14s %8ld %8ld\n", intrname,
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*intrcnt, *intrcnt / uptime);
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intrname += strlen(intrname) + 1;
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inttotal += *intrcnt++;
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}
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kread(X_ALLEVENTS, &allevents, sizeof allevents);
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evptr = allevents.tqh_first;
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while (evptr) {
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if (kvm_read(kd, (long)evptr, (void *)&evcnt,
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sizeof evcnt) != sizeof evcnt) {
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(void)fprintf(stderr, "vmstat: event chain trashed\n",
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kvm_geterr(kd));
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exit(1);
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}
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if (kvm_read(kd, (long)evcnt.ev_dev, (void *)&dev,
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sizeof dev) != sizeof dev) {
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(void)fprintf(stderr, "vmstat: event chain trashed\n",
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kvm_geterr(kd));
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exit(1);
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}
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if (evcnt.ev_count)
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(void)printf("%-14s %8ld %8ld\n", dev.dv_xname,
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evcnt.ev_count, evcnt.ev_count / uptime);
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inttotal += evcnt.ev_count++;
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evptr = evcnt.ev_list.tqe_next;
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}
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(void)printf("Total %8ld %8ld\n", inttotal, inttotal / uptime);
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}
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#endif
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/*
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* These names are defined in <sys/malloc.h>.
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*/
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char *kmemnames[] = INITKMEMNAMES;
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void
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domem()
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{
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register struct kmembuckets *kp;
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register struct kmemstats *ks;
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register int i, j;
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int len, size, first;
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long totuse = 0, totfree = 0, totreq = 0;
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char *name;
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struct kmemstats kmemstats[M_LAST];
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struct kmembuckets buckets[MINBUCKET + 16];
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kread(X_KMEMBUCKETS, buckets, sizeof(buckets));
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(void)printf("Memory statistics by bucket size\n");
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(void)printf(
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" Size In Use Free Requests HighWater Couldfree\n");
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for (i = MINBUCKET, kp = &buckets[i]; i < MINBUCKET + 16; i++, kp++) {
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if (kp->kb_calls == 0)
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continue;
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size = 1 << i;
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(void)printf("%8d %8ld %6ld %10ld %7ld %10ld\n", size,
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kp->kb_total - kp->kb_totalfree,
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kp->kb_totalfree, kp->kb_calls,
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kp->kb_highwat, kp->kb_couldfree);
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totfree += size * kp->kb_totalfree;
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}
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kread(X_KMEMSTAT, kmemstats, sizeof(kmemstats));
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(void)printf("\nMemory usage type by bucket size\n");
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(void)printf(" Size Type(s)\n");
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kp = &buckets[MINBUCKET];
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for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1, kp++) {
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if (kp->kb_calls == 0)
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continue;
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first = 1;
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len = 8;
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for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
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if (ks->ks_calls == 0)
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continue;
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if ((ks->ks_size & j) == 0)
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continue;
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name = kmemnames[i] ? kmemnames[i] : "undefined";
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len += 2 + strlen(name);
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if (first)
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printf("%8d %s", j, name);
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else
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printf(",");
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if (len >= 80) {
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printf("\n\t ");
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len = 10 + strlen(name);
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}
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if (!first)
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printf(" %s", name);
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first = 0;
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}
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printf("\n");
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}
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(void)printf(
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"\nMemory statistics by type Type Kern\n");
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(void)printf(
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" Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)\n");
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for (i = 0, ks = &kmemstats[0]; i < M_LAST; i++, ks++) {
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if (ks->ks_calls == 0)
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continue;
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(void)printf("%12s%6ld%6ldK%7ldK%6ldK%9ld%5u%6u",
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kmemnames[i] ? kmemnames[i] : "undefined",
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ks->ks_inuse, (ks->ks_memuse + 1023) / 1024,
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(ks->ks_maxused + 1023) / 1024,
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(ks->ks_limit + 1023) / 1024, ks->ks_calls,
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ks->ks_limblocks, ks->ks_mapblocks);
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first = 1;
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for (j = 1 << MINBUCKET; j < 1 << (MINBUCKET + 16); j <<= 1) {
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if ((ks->ks_size & j) == 0)
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continue;
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if (first)
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printf(" %d", j);
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else
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printf(",%d", j);
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first = 0;
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}
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printf("\n");
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totuse += ks->ks_memuse;
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totreq += ks->ks_calls;
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}
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(void)printf("\nMemory Totals: In Use Free Requests\n");
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(void)printf(" %7ldK %6ldK %8ld\n",
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(totuse + 1023) / 1024, (totfree + 1023) / 1024, totreq);
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}
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|
|
/*
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* kread reads something from the kernel, given its nlist index.
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*/
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void
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kread(nlx, addr, size)
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int nlx;
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void *addr;
|
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size_t size;
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{
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char *sym;
|
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if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
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sym = namelist[nlx].n_name;
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if (*sym == '_')
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++sym;
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(void)fprintf(stderr,
|
|
"vmstat: symbol %s not defined\n", sym);
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exit(1);
|
|
}
|
|
if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
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sym = namelist[nlx].n_name;
|
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if (*sym == '_')
|
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++sym;
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(void)fprintf(stderr, "vmstat: %s: %s\n", sym, kvm_geterr(kd));
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr,
|
|
#ifndef NEWVM
|
|
"usage: vmstat [-fimst] [-c count] [-M core] \
|
|
[-N system] [-w wait] [disks]\n");
|
|
#else
|
|
"usage: vmstat [-ims] [-c count] [-M core] \
|
|
[-N system] [-w wait] [disks]\n");
|
|
#endif
|
|
exit(1);
|
|
}
|
|
|