#!/bin/bash
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if[ $# -lt 1 ] ; then
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echo “Usage: “
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echo ” threads_per_process.sh PID | process name [count] “
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echo “”
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echo “Example”
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echo ” PID: 36434 or”
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echo ” process string: NumThreads (this script will do a ps -ef|grep NumThreads to get the PID)”
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echo ” The last number is the number of times the command will run”
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echo “”
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echo ” threads_per_process.sh 36434 20″
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echo ” threads_per_process.sh 36434 “
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echo ” threads_per_process.sh NumThreads”
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echo ” threads_per_process.sh NumThreads 20″
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echo “”
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exit 1
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fi
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echo “========================================================”
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echo “The number of threads is displayed under the column NLWP”
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echo “========================================================”
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PROCESS_ID=$1
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COLUMNS=140
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DELAY=3
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if[ $# -gt 1 ] ; then
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DELAY=$2
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shift
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fi
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DEFAULT_COUNT=1
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COUNT=1
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if[ $# -gt 1 ] ; then
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COUNT=$2
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DEFAULT_COUNT=0
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fi
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PATTERN=`echo $1 | sed ‘s/[0-9]//g’`
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if[!–z $PATTERN ];then
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# string
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PROCESS_ID=`ps -ef |egrep -v ‘grep|threads_per’ |grep $1|awk ‘{print $2}’`
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echo “The PID to lookup is: “$PROCESS_ID
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fi
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CMD=“COLUMNS=$COLUMNS ps -p $PROCESS_ID -o pid,%cpu,rss,etime,nlwp,args”
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CMD2=“COLUMNS=$COLUMNS ps -p $PROCESS_ID h -o pid,%cpu,rss,etime,nlwp,args”
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PATTERN=`echo $PROCESS_ID | sed ‘s/\ /@/g’ | sed ‘s/[0-9]//g’`
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n=0
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HEADER_COUNT=15
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if[–z $PATTERN ];then
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if[ $COUNT –ge 1];then
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while[ $n –lt $COUNT ];do
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PROCESS_ID=`ps -e |awk ‘{print $1}’ | grep $PROCESS_ID`
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if[–z $PROCESS_ID ];then
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echo “The monitored PID no longer exists. Exiting.”
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exit 0;
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fi
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if[ $HEADER_COUNT ==0];then
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HEADER_COUNT=15
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fi
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if[ $HEADER_COUNT ==15];then
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eval $CMD|awk ‘{now=strftime(“%Y-%m-%d %T “); print now $0}’
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else
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eval $CMD2|awk ‘{now=strftime(“%Y-%m-%d %T “); print now $0}’
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fi
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HEADER_COUNT=$(expr $HEADER_COUNT –1)
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if[ $DEFAULT_COUNT –eq 1];then
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n=0
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else
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n=$(expr $n +1)
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fi
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if[ $n –lt $COUNT ];then
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sleep $DELAY
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fi
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done
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fi
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else
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echo “The keyword \”$1\” return more than one PID. Please consider constraining the keyword”
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| fi |
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