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#!/usr/bin/sh
#
# dvmstat - vmstat by PID/name/command.
# Written using DTrace (Solaris 10 3/05).
#
# This program provides vmstat like data for one particular PID, a
# process name, or when running a command. It prints statistics
# every second.
#
# $Id: dvmstat 3 2007-08-01 10:50:08Z brendan $
#
# USAGE: dvmstat { -p PID | -n name | command }
# eg,
# dvmstat -p 1871 # examine PID 1871
# dvmstat -n tar # examine processes called "tar"
# dvmstat df -h # run and examine "df -h"
#
# FIELDS:
# re page reclaims Kbytes
# maj major faults Kbytes
# mf minor faults Kbytes
# fr page frees Kbytes
# epi executable page ins Kbytes
# epo executable page out Kbytes
# api anonymous page ins Kbytes
# apo anonymous page outs Kbytes
# fpi filesystem page ins Kbytes
# fpo filesystem page outs Kbytes
# sy system calls number
#
# SEE ALSO: vmstat(1M)
#
# NOTES:
#
# When using dvmstat to run a command - if the command takes some time
# to execute, dvmstat will print output every second. If the command runs
# in less than a second, then the only one line of output will be printed.
#
# COPYRIGHT: Copyright (c) 2005 Brendan Gregg.
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License, Version 1.0 only
# (the "License"). You may not use this file except in compliance
# with the License.
#
# You can obtain a copy of the license at Docs/cddl1.txt
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# CDDL HEADER END
#
# Author: Brendan Gregg [Sydney, Australia]
#
# 12-Jun-2005 Brendan Gregg Created this.
# 08-Jan-2006 " " Last update.
#
##############################
# --- Process Arguments ---
#
### Default variables
opt_pid=0; opt_name=0; pid=0; pname="."; opt_command=0; command=""
### Process options
while getopts hn:p: name
do
case $name in
p) opt_pid=1; pid=$OPTARG ;;
n) opt_name=1; pname=$OPTARG ;;
h|?) cat <<-END >&2
USAGE: dvmstat [-h] { -p PID | -n name | command }
-p PID # examine this PID
-n name # examine this process name
eg,
dvmstat -p 1871 # examine PID 1871
dvmstat -n tar # examine processes called "tar"
dvmstat df -h # run and examine "df -h"
END
exit 1
esac
done
shift `expr $OPTIND - 1`
### Option logic
if [ $opt_pid -eq 0 -a $opt_name -eq 0 ]; then
opt_command=1
if [ "$*" = "" ]; then
$0 -h
exit
fi
command="$*"
fi
#################################
# --- Main Program, DTrace ---
#
dtrace='
#pragma D option quiet
/*
* Command line arguments
*/
inline int OPT_pid = '$opt_pid';
inline int OPT_name = '$opt_name';
inline int OPT_command = '$opt_command';
inline int PID = '$pid';
inline string NAME = "'$pname'";
inline string COMMAND = "'$command'";
inline int SCREEN = 21;
/*
* Initialise variables
*/
dtrace:::BEGIN
{
epi = 0; epo = 0; api = 0; apo = 0; fpi = 0; fpo = 0;
re = 0; mf = 0; maj = 0; fr = 0; sy = 0;
lines = SCREEN + 1;
header = 0;
}
/*
* Print header
*/
dtrace:::BEGIN,
dtrace:::END,
profile:::tick-1sec
/(OPT_command && probename == "END") ||
(!(OPT_command && probename == "BEGIN") && lines++ > SCREEN)/
{
printf("%6s %5s %5s %4s %4s %4s %4s %4s %4s %4s %6s\n",
"re", "maj", "mf", "fr", "epi", "epo", "api", "apo",
"fpi", "fpo", "sy");
lines = 0;
}
/*
* Probe events
*
* this intentionally does not use an associative array for storing data,
* for reasons of performance.
*/
vminfo:::execpgin
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ epi += arg0; }
vminfo:::execpgout
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ epo += arg0; }
vminfo:::anonpgin
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ api += arg0; }
vminfo:::anonpgout
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ apo += arg0; }
vminfo:::fspgin
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ fpi += arg0; }
vminfo:::fspgout
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ fpo += arg0; }
vminfo:::pgrec
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ re += arg0; }
vminfo:::as_fault
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ mf += arg0; }
vminfo:::maj_fault
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ maj += arg0; }
vminfo:::dfree
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ fr += arg0; }
syscall:::entry
/(OPT_pid && pid == PID) ||
(OPT_name && execname == NAME) ||
(OPT_command && pid == $target)/
{ sy++; }
/*
* Print output line
*/
profile:::tick-1sec,
dtrace:::END
{
/* convert to Kbytes */
re *= `_pagesize / 1024;
maj *= `_pagesize / 1024;
mf *= `_pagesize / 1024;
fr *= `_pagesize / 1024;
epi *= `_pagesize / 1024;
epo *= `_pagesize / 1024;
api *= `_pagesize / 1024;
apo *= `_pagesize / 1024;
fpi *= `_pagesize / 1024;
fpo *= `_pagesize / 1024;
/* print line */
printf("%6d %5d %5d %4d %4d %4d %4d %4d %4d %4d %6d\n",
re, maj, mf, fr, epi, epo, api, apo, fpi, fpo, sy);
/* clear counters */
epi = 0; epo = 0; api = 0; apo = 0; fpi = 0; fpo = 0;
re = 0; mf = 0; maj = 0; fr = 0; sy = 0;
}
'
### Run DTrace
if [ $opt_command -eq 1 ]; then
/usr/sbin/dtrace -n "$dtrace" -x evaltime=exec -c "$command" >&2
else
/usr/sbin/dtrace -n "$dtrace" >&2
fi
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