migration/4 migration 4 is using too much CPU
top - 13:02:52 up 603 days, 19:19, 2 users, load average: 5.01, 4.15, 3.44
Tasks: 604 total, 5 running, 599 sleeping, 0 stopped, 0 zombie
Cpu(s): 17.7%us, 36.1%sy, 0.0%ni, 42.0%id, 4.1%wa, 0.0%hi, 0.2%si, 0.0%st
Mem: 16278908k total, 4269684k used, 12009224k free, 119672k buffers
Swap: 8k total, 8k used, 0k free, 1802992k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
273765 root 20 0 102m 680 572 R 36.1 0.0 7:23.08 swapoff
410417 501 20 0 229m 53m 1784 S 26.1 0.3 0:13.60 imap
19 root RT 0 0 0 0 S 37.9 0.0 217:19.08 migration/4
migration/4 migration 4 is using too much CPU but not sure why. I think it was due to heavy IO or swapping at the time possibly.
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