Matthew Walker wrote:
On Tue, June 10, 2008 2:38 pm, Dave Smith wrote:
No difference. I've tried nice and ionice (sorry, should have mentioned
that earlier).
What scheduler is your kernel using?
Great question. I've tried it with cfq and deadline by echo'ing into
/sys/block/hda/queue/scheduler. No improvement there.
I just noticed that vim also suffers like MySQL. If I open a new file in
vim, add a line of text and run :w, it can take 1 minute to save while
'cat /dev/zero > /tmp/foo.bin' is running. I think it's probably related
to this ext3 fsync bug (thanks Byron for pointing that out to me):
http://shaver.off.net/diary/2008/05/25/fsyncers-and-curveballs/
I am now thinking I need to put my MySQL data on a separate partition of
its own (so it doesn't have to share a file system with evil doers like
cat).
--Dave
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