On Sun, 4 May 2008, Tom Lane wrote:
However, I am completely unable to measure any performance improvement from it. Given the possible risk of out-of-memory failures, I think the patch should not be applied without some direct proof of performance benefits, and I don't see any.
Fair enough. There were some pgbench results attached to the original patch submission that gave me a good idea how to replicate the situation where there's some improvement. I expect I can take a shot at quantifying that independantly near the end of this month if nobody else gets to it before then (I'm stuck sorting out a number of OS level issue right now before my testing system is online again). Was planning to take a longer look at Greg Stark's prefetching work at that point as well.
-- * Greg Smith [EMAIL PROTECTED] http://www.gregsmith.com Baltimore, MD -- Sent via pgsql-patches mailing list (pgsql-patches@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-patches
