線程數: thread_num = $(pstree -p $PID | wc -l)
打開文件數: open_files = $(lsof -p $PID | wc -l)
cpu佔用率: cpu = 'top -bn 1 -p $PID | awk 'NR==8{PRINT $9}''
虛存使用量: vmem = 'ps aux | grep $PID | grep -v grep | awk '{print $5}'' #單位m
vmem = 'top -bn 1 -p $PID | awk 'NR==8{print $5}'' #單位k
內存使用量: vmem = 'ps aux | grep $PID | grep -v grep | awk '{print $6}'' #單位m
vmem = 'top -bn 1 -p $PID | awk 'NR==8{print $6}'' #單位k
shell 腳本如圖:
#! /bin/bash
# 間隔時間
SLEEP_TIME=30
if [ "$#" -lt 1 ] # $# 傳遞給腳本或函數的參數個數
then
echo "Usage: $0 program" # $0 腳本名稱
exit -1;
fi
# 第一個參數爲被監控的進程ID
PID="$1"
FILTER="grep\|monitor\|ps\|top\|lsof\|pstree\|sz\|rz\|gdb"
PROCESS_NAME=$(ps -ef | grep ${PID} | grep -v ${FILTER} | awk '{print $8}' | awk -F '[/]' '{print $NF}')
# 自動抓取進程名,拼接日誌文件名 [進程名]_[PID]_stress_monitoring_record.log
LOG="${PROCESS_NAME}_${PID}_stress_monitoring_record.log"
thread_num=0
open_files=0
vmem=0
mem=0
cpu_info=""
while true
do
# 判斷被監控的進程是否啓動
PRO_NOW=`ps aux | grep $PID | grep -v ${FILTER} | wc -l`
if [ $PRO_NOW -eq 0 ]
then
echo "`date +"%Y-%m-%d %H:%M:%S"`, $PID is not running!!!!!!!!!!!!!" >> ./$LOG
else
#線程數
thread_num=$(pstree -p $PID | wc -l)
#打開文件數
open_files=$(lsof -p $PID | wc -l)
#cpu佔用率
cpu_info=`top -bn 1 -p $PID | awk 'NR==8 {print $9}'`
#虛擬內存使用量
vmem=`ps aux | grep $PID | grep -v ${FILTER} | awk '{print $5}'`
#內存使用量
mem=`ps aux | grep $PID | grep -v ${FILTER} | awk '{print $6}'`
#輸出到日誌文件
echo -e "`date +"%Y-%m-%d\t%H:%M:%S"`\t${vmem}\t${mem}\t${cpu_info}\t${open_files}\t${thread_num}" >> ./${LOG}
fi
sleep $SLEEP_TIME
done