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
