[Dovecot] Dovecot write activity (mostly 1.1.x)
Timo Sirainen
tss at iki.fi
Sun Nov 4 14:51:38 EET 2007
On Sun, 2007-11-04 at 13:02 +0100, mikkel at euro123.dk wrote:
> Write activity is about half that of read activity when measuring throughput.
> But when measuring operations it’s about 5-7 times as high (measured with
> zpool iostat on ZFS).
Have you tried with fsync_disable=yes? ZFS's fsyncing performance
apparently isn't all that great. I'm guessing this is also the reason
for the I/O stalls in your other mail.
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