如何定时查询某线程的CPU执行时间

发布时间：2020-12-13 23:43:02 所属栏目：Linux 来源：网络整理

导读：? ? 1 #!/bin/ bash 2 3 pid=$( ps -T -p $(pgrep xxx) | grep xxx | gawk -F " " ‘ {print $2} ‘ ) 4 if [ -z $pid ]; then 5 echo " can not find xxx " 6 exit 1 7 fi 8 echo " pid: " $pid 9 prev_runtime= 0 10 while true ; do 11 current_runtime=`

 1 #!/bin/bash
 2 
 3 pid=$(ps -T -p $(pgrep xxx) | grep xxx | gawk -F" " ‘{print $2}‘)
 4 if [ -z $pid ]; then
 5   echo "can not find xxx"
 6   exit 1
 7 fi
 8 echo "pid: "$pid
 9 prev_runtime=0
10 while true; do 
11   current_runtime=`cat /proc/$pid/sched | grep exec_run | gawk -F: ‘{print $2}‘ | gawk -F"." ‘{print $1}‘`;  
12   #echo $current_runtime
13   delta=$(expr $current_runtime - $prev_runtime)
14   echo "rtime:$delta ms/s"
15   prev_runtime=$current_runtime
16   sleep 1; 
17 done

（编辑：李大同）

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