实用脚本：检查高 CPU / 内存消耗进程
1 检查高 CPU 消耗进程在 Linux 上运行了多长时间的 Bash 脚本
该脚本将帮助你确定高 CPU 消耗进程在 Linux 上运行了多长时间。
# vi /opt/scripts/long-running-cpu-proc.sh
#!/bin/bash
ps -eo pid,user,ppid,%mem,%cpu,cmd --sort=-%cpu | head | tail -n +2 | awk '{print $1}' > /tmp/long-running-processes.txt
echo "--------------------------------------------------"
echo "UName PID CMD Process_Running_Time"
echo "--------------------------------------------------"
for userid in `cat /tmp/long-running-processes.txt`
do
username=$(ps -u -p $userid | tail -1 | awk '{print $1}')
pruntime=$(ps -p $userid -o etime | tail -1)
ocmd=$(ps -p $userid | tail -1 | awk '{print $4}')
echo "$username $userid $ocmd $pruntime"
done | column -t
echo "--------------------------------------------------"
给 long-running-cpu-proc.sh 设置可执行的 Linux 文件权限。
# chmod +x /opt/scripts/long-running-cpu-proc.sh
运行此脚本时，你将获得类似以下的输出：
# sh /opt/scripts/long-running-cpu-proc.sh
----------------------------------------------------
UName PID CMD Process_Running_Time
----------------------------------------------------
daygeek 5214 Web 01:18:48
daygeek 5748 Web 01:08:20
daygeek 8043 inkscape 22:11
daygeek 5269 Web 01:18:31
daygeek 1712 Web 10:44:50
daygeek 5335 RDD 01:17:54
daygeek 1639 firefox 10:44:51
daygeek 7793 nautilus 24:14
daygeek 6301 Web 57:40
----------------------------------------------------
2.检查高内存消耗进程在 Linux 上运行了多长时间的 Bash 脚本
该脚本将帮助你确定最大的内存消耗进程在 Linux 上运行了多长时间。
# sh /opt/scripts/long-running-memory-proc.sh
#!/bin/bash
ps -eo pid,user,ppid,%mem,%cpu,cmd --sort=-%mem | head | tail -n +2 | awk '{print $1}' > /tmp/long-running-processes-1.txt
echo "--------------------------------------------------"
echo "UName PID CMD Process_Running_Time"
echo "--------------------------------------------------"
for userid in `cat /tmp/long-running-processes-1.txt`
do
username=$(ps -u -p $userid | tail -1 | awk '{print $1}')
pruntime=$(ps -p $userid -o etime | tail -1)
ocmd=$(ps -p $userid | tail -1 | awk '{print $4}')
echo "$username $userid $ocmd $pruntime"
done | column -t
echo "--------------------------------------------------"
给 long-running-memory-proc.sh 设置可执行的 Linux 文件权限。
# chmod +x /opt/scripts/long-running-memory-proc.sh
运行此脚本时，你将获得类似以下的输出：
# sh /opt/scripts/long-running-memory-proc.sh
----------------------------------------------------
UName PID CMD Process_Running_Time
----------------------------------------------------
daygeek 1639 firefox 10:44:56
daygeek 2997 Web 10:39:54
daygeek 5269 Web 01:18:37
daygeek 1712 Web 10:44:55
daygeek 8043 inkscape 22:17
daygeek 5214 Web 01:18:54
daygeek 1898 Web 10:44:48
daygeek 1129 Xorg 10:45:07
daygeek 6301 Web 57:45
----------------------------------------------------
