c51633823d
The use of libkvm for post-mortem analysis is still supported (though it could use more testing). We can now remove vmstat's setgid bit. While I'm here, hack the interrupt listing code to not display interrupts that haven't occurred unless the -a option was given on the command line, and document this change.
962 lines
26 KiB
C
962 lines
26 KiB
C
/*
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef lint
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static const 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
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#ifndef lint
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static const char sccsid[] = "@(#)vmstat.c 8.1 (Berkeley) 6/6/93";
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#endif
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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/uio.h>
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#include <sys/namei.h>
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#include <sys/malloc.h>
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#include <sys/signal.h>
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#include <sys/fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/resource.h>
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#include <sys/sysctl.h>
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#include <sys/vmmeter.h>
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#include <vm/vm_param.h>
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#include <ctype.h>
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#include <devstat.h>
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#include <err.h>
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#include <errno.h>
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#include <kvm.h>
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#include <limits.h>
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#include <nlist.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <time.h>
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#include <unistd.h>
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static char da[] = "da";
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static 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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#ifdef notyet
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#define X_DEFICIT 10
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{ "_deficit" },
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#define X_REC 11
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{ "_rectime" },
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#define X_PGIN 12
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{ "_pgintime" },
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#define X_XSTATS 13
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{ "_xstats" },
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#define X_END 14
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#else
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#define X_END 10
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#endif
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{ "" },
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};
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static struct statinfo cur, last;
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static int num_devices, maxshowdevs;
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static long generation;
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static struct device_selection *dev_select;
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static int num_selected;
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static struct devstat_match *matches;
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static int num_matches = 0;
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static int num_devices_specified, num_selections;
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static long select_generation;
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static char **specified_devices;
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static devstat_select_mode select_mode;
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static struct vmmeter sum, osum;
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static int winlines = 20;
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static int aflag;
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static int nflag;
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static 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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#define ZMEMSTAT 0x40
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static void cpustats(void);
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static void devstats(void);
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static void doforkst(void);
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static void domem(void);
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static void dointr(void);
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static void dosum(void);
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static void dosysctl(char *);
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static void dovmstat(u_int, int);
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static void dozmem(void);
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static void kread(int, void *, size_t);
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static void needhdr(int);
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static void printhdr(void);
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static void usage(void);
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static long pct(long, long);
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static long getuptime(void);
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static char **getdrivedata(char **);
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int
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main(int argc, char *argv[])
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{
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int c, todo;
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u_int interval;
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int reps;
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char *memf, *nlistf;
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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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maxshowdevs = 2;
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while ((c = getopt(argc, argv, "ac:fiM:mN:n:p:stw:z")) != -1) {
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switch (c) {
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case 'a':
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aflag++;
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break;
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case 'c':
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reps = atoi(optarg);
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break;
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case 'f':
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todo |= FORKSTAT;
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break;
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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 'n':
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nflag = 1;
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maxshowdevs = atoi(optarg);
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if (maxshowdevs < 0)
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errx(1, "number of devices %d is < 0",
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maxshowdevs);
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break;
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case 'p':
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if (devstat_buildmatch(optarg, &matches, &num_matches) != 0)
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errx(1, "%s", devstat_errbuf);
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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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case 't':
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#ifdef notyet
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todo |= TIMESTAT;
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#else
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errx(EX_USAGE, "sorry, -t is not (re)implemented yet");
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#endif
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break;
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case 'w':
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interval = atoi(optarg);
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break;
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case 'z':
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todo |= ZMEMSTAT;
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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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if (memf != NULL) {
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kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
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if (kd == NULL)
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errx(1, "kvm_openfiles: %s", errbuf);
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}
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if (kd != NULL && (c = kvm_nlist(kd, namelist)) != 0) {
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if (c > 0) {
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warnx("undefined symbols:");
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for (c = 0;
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c < (int)(sizeof(namelist)/sizeof(namelist[0]));
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c++)
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if (namelist[c].n_type == 0)
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(void)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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warnx("kvm_nlist: %s", 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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/*
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* Make sure that the userland devstat version matches the
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* kernel devstat version. If not, exit and print a
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* message informing the user of his mistake.
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*/
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if (devstat_checkversion(NULL) < 0)
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errx(1, "%s", devstat_errbuf);
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argv = getdrivedata(argv);
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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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if (todo & FORKSTAT)
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doforkst();
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if (todo & MEMSTAT)
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domem();
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if (todo & ZMEMSTAT)
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dozmem();
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if (todo & SUMSTAT)
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dosum();
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#ifdef notyet
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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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static int
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mysysctl(const char *name, void *oldp, size_t *oldlenp,
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void *newp, size_t newlen)
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{
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int error;
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error = sysctlbyname(name, oldp, oldlenp, newp, newlen);
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if (error != 0 && errno != ENOMEM)
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err(1, "sysctl(%s)", name);
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return (error);
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}
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static char **
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getdrivedata(char **argv)
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{
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if ((num_devices = devstat_getnumdevs(NULL)) < 0)
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errx(1, "%s", devstat_errbuf);
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cur.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
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last.dinfo = (struct devinfo *)malloc(sizeof(struct devinfo));
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bzero(cur.dinfo, sizeof(struct devinfo));
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bzero(last.dinfo, sizeof(struct devinfo));
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if (devstat_getdevs(NULL, &cur) == -1)
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errx(1, "%s", devstat_errbuf);
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num_devices = cur.dinfo->numdevs;
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generation = cur.dinfo->generation;
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specified_devices = (char **)malloc(sizeof(char *));
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for (num_devices_specified = 0; *argv; ++argv) {
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if (isdigit(**argv))
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break;
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num_devices_specified++;
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specified_devices = (char **)realloc(specified_devices,
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sizeof(char *) *
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num_devices_specified);
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specified_devices[num_devices_specified - 1] = *argv;
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}
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dev_select = NULL;
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if (nflag == 0 && maxshowdevs < num_devices_specified)
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maxshowdevs = num_devices_specified;
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/*
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* People are generally only interested in disk statistics when
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* they're running vmstat. So, that's what we're going to give
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* them if they don't specify anything by default. We'll also give
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* them any other random devices in the system so that we get to
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* maxshowdevs devices, if that many devices exist. If the user
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* specifies devices on the command line, either through a pattern
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* match or by naming them explicitly, we will give the user only
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* those devices.
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*/
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if ((num_devices_specified == 0) && (num_matches == 0)) {
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if (devstat_buildmatch(da, &matches, &num_matches) != 0)
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errx(1, "%s", devstat_errbuf);
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select_mode = DS_SELECT_ADD;
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} else
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select_mode = DS_SELECT_ONLY;
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/*
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* At this point, selectdevs will almost surely indicate that the
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* device list has changed, so we don't look for return values of 0
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* or 1. If we get back -1, though, there is an error.
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*/
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if (devstat_selectdevs(&dev_select, &num_selected, &num_selections,
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&select_generation, generation, cur.dinfo->devices,
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num_devices, matches, num_matches, specified_devices,
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num_devices_specified, select_mode,
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maxshowdevs, 0) == -1)
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errx(1, "%s", devstat_errbuf);
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return(argv);
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}
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static long
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getuptime(void)
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{
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static struct timeval boottime;
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static time_t now;
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time_t uptime;
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if (boottime.tv_sec == 0) {
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if (kd != NULL) {
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kread(X_BOOTTIME, &boottime, sizeof(boottime));
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} else {
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size_t size;
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size = sizeof(boottime);
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mysysctl("kern.boottime", &boottime, &size, NULL, 0);
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if (size != sizeof(boottime))
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errx(1, "kern.boottime size mismatch");
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}
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}
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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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errx(1, "time makes no sense; namelist must be wrong");
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return(uptime);
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}
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|
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static void
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fill_vmmeter(struct vmmeter *vmmp)
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{
|
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if (kd != NULL) {
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kread(X_SUM, vmmp, sizeof(*vmmp));
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} else {
|
|
size_t size = sizeof(unsigned int);
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#define GET_VM_STATS(cat, name) \
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mysysctl("vm.stats." #cat "." #name, &vmmp->name, &size, NULL, 0)
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/* sys */
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GET_VM_STATS(sys, v_swtch);
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GET_VM_STATS(sys, v_trap);
|
|
GET_VM_STATS(sys, v_syscall);
|
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GET_VM_STATS(sys, v_intr);
|
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GET_VM_STATS(sys, v_soft);
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|
|
/* vm */
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GET_VM_STATS(vm, v_vm_faults);
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GET_VM_STATS(vm, v_cow_faults);
|
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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_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_active_count);
|
|
GET_VM_STATS(vm, v_inactive_target);
|
|
GET_VM_STATS(vm, v_inactive_count);
|
|
GET_VM_STATS(vm, v_cache_count);
|
|
GET_VM_STATS(vm, v_cache_min);
|
|
GET_VM_STATS(vm, v_cache_max);
|
|
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)
|
|
{
|
|
if (kd != NULL) {
|
|
/* XXX fill vmtp */
|
|
errx(1, "not implemented");
|
|
} else {
|
|
size_t size = sizeof(*vmtp);
|
|
mysysctl("vm.vmtotal", vmtp, &size, NULL, 0);
|
|
if (size != sizeof(*vmtp))
|
|
errx(1, "vm.total size mismatch");
|
|
}
|
|
}
|
|
|
|
static int hz, hdrcnt;
|
|
|
|
static void
|
|
dovmstat(u_int interval, int reps)
|
|
{
|
|
struct vmtotal total;
|
|
time_t uptime, halfuptime;
|
|
struct devinfo *tmp_dinfo;
|
|
size_t size;
|
|
|
|
uptime = getuptime();
|
|
halfuptime = uptime / 2;
|
|
(void)signal(SIGCONT, needhdr);
|
|
|
|
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 {
|
|
struct clockinfo clockrate;
|
|
|
|
size = sizeof(clockrate);
|
|
mysysctl("kern.clockrate", &clockrate, &size, NULL, 0);
|
|
if (size != sizeof(clockrate))
|
|
errx(1, "clockrate size mismatch");
|
|
hz = clockrate.hz;
|
|
}
|
|
|
|
for (hdrcnt = 1;;) {
|
|
if (!--hdrcnt)
|
|
printhdr();
|
|
if (kd != NULL) {
|
|
kread(X_CPTIME, cur.cp_time, sizeof(cur.cp_time));
|
|
} else {
|
|
size = sizeof(cur.cp_time);
|
|
mysysctl("kern.cp_time", &cur.cp_time, &size, NULL, 0);
|
|
if (size != sizeof(cur.cp_time))
|
|
errx(1, "cp_time size 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:
|
|
errx(1, "%s", devstat_errbuf);
|
|
break;
|
|
case 1: {
|
|
int retval;
|
|
|
|
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:
|
|
errx(1, "%s", devstat_errbuf);
|
|
break;
|
|
case 1:
|
|
printhdr();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
fill_vmmeter(&sum);
|
|
fill_vmtotal(&total);
|
|
(void)printf("%2d %1d %1d",
|
|
total.t_rq - 1, total.t_dw + total.t_pw, total.t_sw);
|
|
#define vmstat_pgtok(a) ((a) * sum.v_page_size >> 10)
|
|
#define rate(x) (((x) + halfuptime) / uptime) /* round */
|
|
(void)printf(" %7ld %6ld ", (long)vmstat_pgtok(total.t_avm),
|
|
(long)vmstat_pgtok(total.t_free));
|
|
(void)printf("%4lu ",
|
|
(u_long)rate(sum.v_vm_faults - osum.v_vm_faults));
|
|
(void)printf("%3lu ",
|
|
(u_long)rate(sum.v_reactivated - osum.v_reactivated));
|
|
(void)printf("%3lu ",
|
|
(u_long)rate(sum.v_swapin + sum.v_vnodein -
|
|
(osum.v_swapin + osum.v_vnodein)));
|
|
(void)printf("%3lu ",
|
|
(u_long)rate(sum.v_swapout + sum.v_vnodeout -
|
|
(osum.v_swapout + osum.v_vnodeout)));
|
|
(void)printf("%3lu ",
|
|
(u_long)rate(sum.v_tfree - osum.v_tfree));
|
|
(void)printf("%3lu ",
|
|
(u_long)rate(sum.v_pdpages - osum.v_pdpages));
|
|
devstats();
|
|
(void)printf("%4lu %4lu %3lu ",
|
|
(u_long)rate(sum.v_intr - osum.v_intr),
|
|
(u_long)rate(sum.v_syscall - osum.v_syscall),
|
|
(u_long)rate(sum.v_swtch - osum.v_swtch));
|
|
cpustats();
|
|
(void)printf("\n");
|
|
(void)fflush(stdout);
|
|
if (reps >= 0 && --reps <= 0)
|
|
break;
|
|
osum = sum;
|
|
uptime = interval;
|
|
/*
|
|
* We round upward to avoid losing low-frequency events
|
|
* (i.e., >= 1 per interval but < 1 per second).
|
|
*/
|
|
if (interval != 1)
|
|
halfuptime = (uptime + 1) / 2;
|
|
else
|
|
halfuptime = 0;
|
|
(void)sleep(interval);
|
|
}
|
|
}
|
|
|
|
static void
|
|
printhdr(void)
|
|
{
|
|
int i, num_shown;
|
|
|
|
num_shown = (num_selected < maxshowdevs) ? num_selected : maxshowdevs;
|
|
(void)printf(" procs memory page%*s", 19, "");
|
|
if (num_shown > 1)
|
|
(void)printf(" disks %*s", num_shown * 4 - 7, "");
|
|
else if (num_shown == 1)
|
|
(void)printf("disk");
|
|
(void)printf(" faults cpu\n");
|
|
(void)printf(" r b w avm fre flt re pi po fr sr ");
|
|
for (i = 0; i < num_devices; i++)
|
|
if ((dev_select[i].selected)
|
|
&& (dev_select[i].selected <= maxshowdevs))
|
|
(void)printf("%c%c%d ", dev_select[i].device_name[0],
|
|
dev_select[i].device_name[1],
|
|
dev_select[i].unit_number);
|
|
(void)printf(" in sy cs us sy id\n");
|
|
hdrcnt = winlines - 2;
|
|
}
|
|
|
|
/*
|
|
* Force a header to be prepended to the next output.
|
|
*/
|
|
static void
|
|
needhdr(int dummy __unused)
|
|
{
|
|
|
|
hdrcnt = 1;
|
|
}
|
|
|
|
#ifdef notyet
|
|
static void
|
|
dotimes(void)
|
|
{
|
|
u_int pgintime, rectime;
|
|
|
|
kread(X_REC, &rectime, sizeof(rectime));
|
|
kread(X_PGIN, &pgintime, sizeof(pgintime));
|
|
kread(X_SUM, &sum, sizeof(sum));
|
|
(void)printf("%u reclaims, %u total time (usec)\n",
|
|
sum.v_pgrec, rectime);
|
|
(void)printf("average: %u usec / reclaim\n", rectime / sum.v_pgrec);
|
|
(void)printf("\n");
|
|
(void)printf("%u page ins, %u total time (msec)\n",
|
|
sum.v_pgin, pgintime / 10);
|
|
(void)printf("average: %8.1f msec / page in\n",
|
|
pgintime / (sum.v_pgin * 10.0));
|
|
}
|
|
#endif
|
|
|
|
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;
|
|
long nchtotal;
|
|
|
|
fill_vmmeter(&sum);
|
|
(void)printf("%9u cpu context switches\n", sum.v_swtch);
|
|
(void)printf("%9u device interrupts\n", sum.v_intr);
|
|
(void)printf("%9u software interrupts\n", sum.v_soft);
|
|
(void)printf("%9u traps\n", sum.v_trap);
|
|
(void)printf("%9u system calls\n", sum.v_syscall);
|
|
(void)printf("%9u kernel threads created\n", sum.v_kthreads);
|
|
(void)printf("%9u fork() calls\n", sum.v_forks);
|
|
(void)printf("%9u vfork() calls\n", sum.v_vforks);
|
|
(void)printf("%9u rfork() calls\n", sum.v_rforks);
|
|
(void)printf("%9u swap pager pageins\n", sum.v_swapin);
|
|
(void)printf("%9u swap pager pages paged in\n", sum.v_swappgsin);
|
|
(void)printf("%9u swap pager pageouts\n", sum.v_swapout);
|
|
(void)printf("%9u swap pager pages paged out\n", sum.v_swappgsout);
|
|
(void)printf("%9u vnode pager pageins\n", sum.v_vnodein);
|
|
(void)printf("%9u vnode pager pages paged in\n", sum.v_vnodepgsin);
|
|
(void)printf("%9u vnode pager pageouts\n", sum.v_vnodeout);
|
|
(void)printf("%9u vnode pager pages paged out\n", sum.v_vnodepgsout);
|
|
(void)printf("%9u page daemon wakeups\n", sum.v_pdwakeups);
|
|
(void)printf("%9u pages examined by the page daemon\n", sum.v_pdpages);
|
|
(void)printf("%9u pages reactivated\n", sum.v_reactivated);
|
|
(void)printf("%9u copy-on-write faults\n", sum.v_cow_faults);
|
|
(void)printf("%9u copy-on-write optimized faults\n", sum.v_cow_optim);
|
|
(void)printf("%9u zero fill pages zeroed\n", sum.v_zfod);
|
|
(void)printf("%9u zero fill pages prezeroed\n", sum.v_ozfod);
|
|
(void)printf("%9u intransit blocking page faults\n", sum.v_intrans);
|
|
(void)printf("%9u total VM faults taken\n", sum.v_vm_faults);
|
|
(void)printf("%9u pages affected by kernel thread creation\n", sum.v_kthreadpages);
|
|
(void)printf("%9u pages affected by fork()\n", sum.v_forkpages);
|
|
(void)printf("%9u pages affected by vfork()\n", sum.v_vforkpages);
|
|
(void)printf("%9u pages affected by rfork()\n", sum.v_rforkpages);
|
|
(void)printf("%9u pages freed\n", sum.v_tfree);
|
|
(void)printf("%9u pages freed by daemon\n", sum.v_dfree);
|
|
(void)printf("%9u pages freed by exiting processes\n", sum.v_pfree);
|
|
(void)printf("%9u pages active\n", sum.v_active_count);
|
|
(void)printf("%9u pages inactive\n", sum.v_inactive_count);
|
|
(void)printf("%9u pages in VM cache\n", sum.v_cache_count);
|
|
(void)printf("%9u pages wired down\n", sum.v_wire_count);
|
|
(void)printf("%9u pages free\n", sum.v_free_count);
|
|
(void)printf("%9u bytes per page\n", sum.v_page_size);
|
|
if (kd != NULL) {
|
|
kread(X_NCHSTATS, &lnchstats, sizeof(lnchstats));
|
|
} else {
|
|
size_t size = sizeof(lnchstats);
|
|
mysysctl("vfs.cache.nchstats", &lnchstats, &size, NULL, 0);
|
|
if (size != sizeof(lnchstats))
|
|
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;
|
|
(void)printf("%9ld total name lookups\n", nchtotal);
|
|
(void)printf(
|
|
"%9s cache hits (%ld%% pos + %ld%% neg) system %ld%% per-directory\n",
|
|
"", PCT(lnchstats.ncs_goodhits, nchtotal),
|
|
PCT(lnchstats.ncs_neghits, nchtotal),
|
|
PCT(lnchstats.ncs_pass2, nchtotal));
|
|
(void)printf("%9s deletions %ld%%, falsehits %ld%%, toolong %ld%%\n", "",
|
|
PCT(lnchstats.ncs_badhits, nchtotal),
|
|
PCT(lnchstats.ncs_falsehits, nchtotal),
|
|
PCT(lnchstats.ncs_long, nchtotal));
|
|
}
|
|
|
|
static void
|
|
doforkst(void)
|
|
{
|
|
fill_vmmeter(&sum);
|
|
(void)printf("%d forks, %d pages, average %.2f\n",
|
|
sum.v_forks, sum.v_forkpages,
|
|
sum.v_forks == 0 ? 0.0 :
|
|
(double)sum.v_forkpages / sum.v_forks);
|
|
(void)printf("%d vforks, %d pages, average %.2f\n",
|
|
sum.v_vforks, sum.v_vforkpages,
|
|
sum.v_vforks == 0 ? 0.0 :
|
|
(double)sum.v_vforkpages / sum.v_vforks);
|
|
(void)printf("%d rforks, %d pages, average %.2f\n",
|
|
sum.v_rforks, sum.v_rforkpages,
|
|
sum.v_rforks == 0 ? 0.0 :
|
|
(double)sum.v_rforkpages / sum.v_rforks);
|
|
}
|
|
|
|
static void
|
|
devstats(void)
|
|
{
|
|
int dn, state;
|
|
long double transfers_per_second;
|
|
long double busy_seconds;
|
|
long tmp;
|
|
|
|
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;
|
|
|
|
for (dn = 0; dn < num_devices; dn++) {
|
|
int di;
|
|
|
|
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)
|
|
errx(1, "%s", devstat_errbuf);
|
|
|
|
(void)printf("%3.0Lf ", transfers_per_second);
|
|
}
|
|
}
|
|
|
|
static void
|
|
cpustats(void)
|
|
{
|
|
int state;
|
|
double lpct, total;
|
|
|
|
total = 0;
|
|
for (state = 0; state < CPUSTATES; ++state)
|
|
total += cur.cp_time[state];
|
|
if (total)
|
|
lpct = 100.0 / total;
|
|
else
|
|
lpct = 0.0;
|
|
(void)printf("%2.0f ", (cur.cp_time[CP_USER] +
|
|
cur.cp_time[CP_NICE]) * lpct);
|
|
(void)printf("%2.0f ", (cur.cp_time[CP_SYS] +
|
|
cur.cp_time[CP_INTR]) * lpct);
|
|
(void)printf("%2.0f", cur.cp_time[CP_IDLE] * lpct);
|
|
}
|
|
|
|
static void
|
|
dointr(void)
|
|
{
|
|
u_long *intrcnt, uptime;
|
|
u_int64_t inttotal;
|
|
int nintr, inamlen;
|
|
int i, istrnamlen;
|
|
size_t clen;
|
|
char *intrname, *tintrname;
|
|
|
|
uptime = getuptime();
|
|
if (kd != NULL) {
|
|
nintr = namelist[X_EINTRCNT].n_value -
|
|
namelist[X_INTRCNT].n_value;
|
|
inamlen = namelist[X_EINTRNAMES].n_value -
|
|
namelist[X_INTRNAMES].n_value;
|
|
if ((intrcnt = malloc((size_t)nintr)) == NULL ||
|
|
(intrname = malloc((size_t)inamlen)) == NULL)
|
|
err(1, "malloc()");
|
|
kread(X_INTRCNT, intrcnt, (size_t)nintr);
|
|
kread(X_INTRNAMES, intrname, (size_t)inamlen);
|
|
} else {
|
|
for (intrcnt = NULL, nintr = 1024; ; nintr *= 2) {
|
|
if ((intrcnt = reallocf(intrcnt, nintr)) == NULL)
|
|
err(1, "reallocf()");
|
|
if (mysysctl("hw.intrcnt",
|
|
intrcnt, &nintr, NULL, 0) == 0)
|
|
break;
|
|
}
|
|
for (intrname = NULL, inamlen = 1024; ; inamlen *= 2) {
|
|
if ((intrname = reallocf(intrname, inamlen)) == NULL)
|
|
err(1, "reallocf()");
|
|
if (mysysctl("hw.intrnames",
|
|
intrname, &inamlen, NULL, 0) == 0)
|
|
break;
|
|
}
|
|
}
|
|
nintr /= sizeof(u_long);
|
|
tintrname = intrname;
|
|
istrnamlen = strlen("interrupt");
|
|
for (i = 0; i < nintr; i++) {
|
|
clen = strlen(tintrname);
|
|
if (clen > istrnamlen)
|
|
istrnamlen = clen;
|
|
tintrname += clen + 1;
|
|
}
|
|
(void)printf("%-*s %20s %10s\n", istrnamlen, "interrupt", "total",
|
|
"rate");
|
|
inttotal = 0;
|
|
while (--nintr >= 0) {
|
|
const char *p;
|
|
if (intrname[0] != '\0' &&
|
|
(aflag > 0 || *intrcnt != 0) &&
|
|
(aflag > 1 || ((p = strchr(intrname, ' ')) && p[1] != ' ')) &&
|
|
(aflag > 2 || strncmp(intrname, "stray ", 6) != 0))
|
|
(void)printf("%-*s %20lu %10lu\n", istrnamlen, intrname,
|
|
*intrcnt, *intrcnt / uptime);
|
|
intrname += strlen(intrname) + 1;
|
|
inttotal += *intrcnt++;
|
|
}
|
|
(void)printf("%-*s %20llu %10llu\n", istrnamlen, "Total", inttotal,
|
|
inttotal / (u_int64_t) uptime);
|
|
}
|
|
|
|
static void
|
|
domem(void)
|
|
{
|
|
if (kd != NULL)
|
|
errx(1, "not implemented");
|
|
dosysctl("kern.malloc");
|
|
}
|
|
|
|
static void
|
|
dozmem(void)
|
|
{
|
|
if (kd != NULL)
|
|
errx(1, "not implemented");
|
|
dosysctl("vm.zone");
|
|
}
|
|
|
|
static void
|
|
dosysctl(char *name)
|
|
{
|
|
char *buf;
|
|
size_t bufsize;
|
|
|
|
for (buf = NULL, bufsize = 1024; ; bufsize *= 2) {
|
|
if ((buf = realloc(buf, bufsize)) == NULL)
|
|
err(1, "realloc()");
|
|
if (mysysctl(name, buf, &bufsize, 0, NULL) == 0)
|
|
break;
|
|
bufsize *= 2;
|
|
}
|
|
buf[bufsize] = '\0'; /* play it safe */
|
|
(void)printf("%s\n\n", buf);
|
|
free(buf);
|
|
}
|
|
|
|
/*
|
|
* kread reads something from the kernel, given its nlist index.
|
|
*/
|
|
static void
|
|
kread(int nlx, void *addr, size_t size)
|
|
{
|
|
char *sym;
|
|
|
|
if (namelist[nlx].n_type == 0 || namelist[nlx].n_value == 0) {
|
|
sym = namelist[nlx].n_name;
|
|
if (*sym == '_')
|
|
++sym;
|
|
errx(1, "symbol %s not defined", sym);
|
|
}
|
|
if ((size_t)kvm_read(kd, namelist[nlx].n_value, addr, size) != size) {
|
|
sym = namelist[nlx].n_name;
|
|
if (*sym == '_')
|
|
++sym;
|
|
errx(1, "%s: %s", sym, kvm_geterr(kd));
|
|
}
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr, "%s%s",
|
|
"usage: vmstat [-aimsz] [-c count] [-M core] [-N system] [-w wait]\n",
|
|
" [-n devs] [disks]\n");
|
|
exit(1);
|
|
}
|