iowait 2006-01-11 - By Hoover Mark A AISC CONT
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I've got an annoying little problem that I'm trying to find the answer to.
I have something that about every 2-3 days I have something that runs I/O
wait up to anywhere between 4-10%. Normally ours is 0-1%. This isn't
bringing the server to its knees, but I'd really like to find out what
process is doing it.
If anybody can tell me how to match a given process to the iowait, I'd
really appreciate it. I've been looking at the output of iostat, vmstat,
lsof, ps, and top all morning and don't feel any closer than when I started.
avg-cpu: %user %nice %sys %iowait %idle
30.75 0.00 0.75 4.20 64.30
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 33.00 0.00 280.00 0 1400
sda1 0.00 0.00 0.00 0 0
sda2 33.00 0.00 280.00 0 1400
sda3 0.00 0.00 0.00 0 0
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