查看linux 占用io过高的进程

抓哪个进程干坏事前要先停掉syslog

/etc/init.d/syslog stop

echo 1 > /proc/sys/vm/block_dump

dmesg | egrep "READ|WRITE|dirtied" | egrep -o '([a-zA-Z]*)' | sort | uniq -c | sort -rn | head

1423 kjournald

1075 pdflush

209 indexer

3 cronolog

1 rnald

1 mysqld

不要忘记在抓完之后关掉block_dump和启动syslog

echo 0 > /proc/sys/vm/block_dump

/etc/init.d/syslog start