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iotop監視linux磁盤IO情況

iotop能檢視目前使用磁盤的程序以及IO

預設iotop指令是不安裝的,但是在RHEL安裝CD光牒中有。另外需要root權限執行

可以在挂載好本地yum後

yum install iotop

常用使用方法:

# iotop -oP

-o: 隻顯示目前有IO的程序或thread

-P:隻顯示程序

--version             show program's version number and exit
  -h, --help            show this help message and exit
  -o, --only            only show processes or threads actually doing I/O
  -b, --batch           non-interactive mode
  -n NUM, --iter=NUM    number of iterations before ending [infinite]
  -d SEC, --delay=SEC   delay between iterations [1 second]
  -p PID, --pid=PID     processes/threads to monitor [all]
  -u USER, --user=USER  users to monitor [all]
  -P, --processes       only show processes, not all threads
  -a, --accumulated     show accumulated I/O instead of bandwidth
  -k, --kilobytes       use kilobytes instead of a human friendly unit
  -t, --time            add a timestamp on each line (implies --batch)
  -q, --quiet           suppress some lines of header (implies --batch)
           
iotop監視linux磁盤IO情況

IO速率還是以易讀的形式顯示的,可以說非常貼心了

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