"Shridhar Daithankar" <[EMAIL PROTECTED]> writes:
>> - Would a RAID setup make the disk faster?  Because top rarely shows the
>> CPUs above 50%, I suspect maybe the disk is the bottleneck.

> Yes it is. You need to move WAL to a different disk.

For an update-intensive setup, putting WAL on its own disk is definitely
your biggest win.  You might then find it rewarding to fool with the
wal_sync_method and perhaps to bump up wal_buffers a little.  A small
number of people have had luck with putting a nonzero commit_delay but
I have little faith in that.

                        regards, tom lane

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