On 12/06/10 01:16, Josh Berkus wrote:
Well, we're already not waiting for fsync, which is the slowest part.
If there's a performance problem, it may be because FADVISE_DONTNEED
disables kernel buffering so that we're forced to actually read the data
back from disk before sending it on down the wire.
Well, that's fairly direct to solve, no? Just disable FADVISE_DONTNEED
if walsenders> 0.
We already do that.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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