實用指令碼:檢查高 CPU / 記憶體消耗程序
阿新 • • 發佈:2020-09-21
1 檢查高 CPU 消耗程序在 Linux 上運行了多長時間的 Bash 指令碼
該指令碼將幫助你確定高 CPU 消耗程序在 Linux 上運行了多長時間。
# 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 "--------------------------------------------------"
給 long-running-cpu-proc.sh 設定可執行的 Linux 檔案許可權。
# chmod +x /opt/scripts/long-running-cpu-proc.sh
執行此指令碼時,你將獲得類似以下的輸出:
# 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.檢查高記憶體消耗程序在 Linux 上運行了多長時間的 Bash 指令碼
該指令碼將幫助你確定最大的記憶體消耗程序在 Linux 上運行了多長時間。
# 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 "--------------------------------------------------"
給 long-running-memory-proc.sh 設定可執行的 Linux 檔案許可權。
# chmod +x /opt/scripts/long-running-memory-proc.sh
執行此指令碼時,你將獲得類似以下的輸出:
# 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
----------------------------------------------------