cpu負荷を記録するscript

cpu負荷を記録するscript

• dir作成

  mkdir /etc/cron.other
  mkdir /var/log/cpulog

• script作成

  vi /etc/cron.other/cpulog.sh

• script内容

  #!/bin/sh
  LOGNAME=/var/log/cpulog/cpulog.`date +%Y-%m-%d`.txt
  
  if [ ! -s ${LOGNAME} ]; then
    > ${LOGNAME}
    echo " time     procs                      memory    swap          io     system         cpu" >> ${LOGNAME}
    echo "hh:mm   r  b  w   swpd   free   buff  cache  si  so    bi    bo   in    cs  us  sy  id" >> ${LOGNAME}
  fi
  
  TEMPFILE=`mktemp temp.XXXXXX`
  vmstat 60 2 | tail -1 > ${TEMPFILE}
  
  echo "`date +%H:%M`  `cat ${TEMPFILE}`" >> ${LOGNAME}
  
  rm -f ${TEMPFILE}

• cronにて実行

  */1 * * * * root /etc/cron.other/cpulog.sh 2> /var/log/cpulog/error.txt