iotop 查看进程IO情况

[root@166087 ~]# yum install iotop
[root@166087 ~]# iotop

Total DISK READ: 0.00 B/s | Total DISK WRITE: 0.00 B/s
TID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO>    COMMAND
18688 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
1 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % init
2 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [kthreadd/54057]
3 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [khelper/54057]
516 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % rsyslogd -i /var/run/syslogd.pid -c 5
517 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % rsyslogd -i /var/run/syslogd.pid -c 5
518 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % rsyslogd -i /var/run/syslogd.pid -c 5
519 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % rsyslogd -i /var/run/syslogd.pid -c 5
18690 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
18728 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
18731 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
18691 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
28139 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % -bash
18692 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
19994 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
18735 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
9885 be/4 apache      0.00 B/s    0.00 B/s  0.00 %  0.00 % httpd
18693 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
27952 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sshd: root@pts/0
162 be/3 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % udevd -d
13092 be/4 apache      0.00 B/s    0.00 B/s  0.00 %  0.00 % httpd
18725 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
18726 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
13095 be/4 apache      0.00 B/s    0.00 B/s  0.00 %  0.00 % httpd
552 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % xinetd -stayalive -pidfile /var/run/xinetd.pid
18729 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
18730 be/4 mysql       0.00 B/s    0.00 B/s  0.00 %  0.00 % mysqld --defaults-file=/data/sys/conf/my.cnf~ysql/data/166087.sys.ipv4.io.pid --port=3306
17735 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sh /usr/local/mysql/bin/mysqld_safe --defaul~file=/data/mysql/data/166087.sys.ipv4.io.pid