linux的io看哪些,Linux查看系统IO
Linux查看IO的工具主要有两个，iostat(集成于sysstat包中)和iotop。前者经常用于查看分区的IO情况，后者常用来查看每个进程的IO占用。
(1)、 iostat
# yum install sysstat
# iostat -x 5 #每隔五秒显示一次
(2)、iotop
# yum install iotop
# iotop -o #仅显示占用IO的进程
iotop选项:
–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)
-p 指定进程ID，显示该进程的IO情况
-u 指定用户名，显示该用户所有的进程IO情况
参考：http://www.linuxde.net/2013/08/15130.html
Linux查看IO的工具主要有两个，iostat(集成于sysstat包中)和iotop。前者经常用于查看分区的IO情况，后者常用来查看每个进程的IO占用。 (1)、 iostat # yum install sysstat # iostat -x 5 #每隔五秒显示一次 (2)、iotop # yum install iotop # iotop -o #仅显示占用IO的进程 iotop选项: –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) -p 指定进程ID，显示该进程的IO情况 -u 指定用户名，显示该用户所有的进程IO情况 参考：http://www.linuxde.net/2013/08/15130.html