getcpuusage.sh

用shell写的一个记录进程cpu使用率的脚本

#!/bin/sh
#GetmemUsageModified2

USAGE="Usage: $0 processName"

if [ $# -ne 1 ]; then
   echo $USAGE
   exit 1
fi

# In case the monitored process has not yet started
# keep searching until its PID is found
PROCESS_PID=""
while :
do
   PROCESS_PID=`/sbin/pidof $1`

   if [ "$PROCESS_PID.X" != ".X" ]; then
      break
   fi
done

LOG_FILE="CPUUsage.csv"

#echo "ElapsedTime,VmSize,VmRSS" > $LOG_FILE

ELAPSED_TIME=`date`
pName=$1

while [ -d /proc/$PROCESS_PID ]
do
   echo -n $PROCESS_PID:$ELAPSED_TIME, >> $LOG_FILE
   cpuUsage=`top -n 1 -b | awk '/'${pName##*/}'/{a+=$9}END{print a}'`
   if [ "$cpuUsage" = "" ];then cpuUsage=0;fi  
   echo $cpuUsage >> $LOG_FILE
   ELAPSED_TIME=`date +%H:%M:%S:%N`
done
echo "$1 is no longer a running process"
exit 0