In Windows for ASP, you can get it perfmon, but...
How to get "requests per second" for Apache in Linux?
Here is a short bash script I made up to sample the request rate (based on dicroce's suggestion of using wc -l
on the log file).
#!/bin/sh
##############################################################################
# This script will monitor the number of lines in a log file to determine the
# number of requests per second.
#
# Example usage:
# reqs-per-sec -f 15 -i /var/www/http/access.log
#
# Author: Adam Franco
# Date: 2009-12-11
# License: http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
##############################################################################
usage="Usage: `basename $0` -f <frequency in seconds, min 1, default 60> -l <log file>"
# Set up options
while getopts ":l:f:" options; do
case $options in
l ) logFile=$OPTARG;;
f ) frequency=$OPTARG;;
\? ) echo -e $usage
exit 1;;
* ) echo -e $usage
exit 1;;
esac
done
# Test for logFile
if [ ! -n "$logFile" ]
then
echo -e $usage
exit 1
fi
# Test for frequency
if [ ! -n "$frequency" ]
then
frequency=60
fi
# Test that frequency is an integer
if [ $frequency -eq $frequency 2> /dev/null ]
then
:
else
echo -e $usage
exit 3
fi
# Test that frequency is an integer
if [ $frequency -lt 1 ]
then
echo -e $usage
exit 3
fi
if [ ! -e "$logFile" ]
then
echo "$logFile does not exist."
echo
echo -e $usage
exit 2
fi
lastCount=`wc -l $logFile | sed 's/\([0-9]*\).*/\1/'`
while true
do
newCount=`wc -l $logFile | sed 's/\([0-9]*\).*/\1/'`
diff=$(( newCount - lastCount ))
rate=$(echo "$diff / $frequency" |bc -l)
echo $rate
lastCount=$newCount
sleep $frequency
done