On Sat, 2008-11-01 at 13:23 -0400, Robert Haas wrote:
> > Can you test whether using the buffer access strategy is a win or a
> > loss? Most of that gain is probably coming from the reduction in
> > pinning.
>
> --PATCHED--
> Time: 13869.724 ms (median)
> --PATCHED with BAS disabled--
> Time: 14460.432 ms (median with outlier removed)
That seems a conclusive argument in favour. Small additional performance
gain. plus generally beneficial behaviour for concurrent loads.
-- Simon Riggs www.2ndQuadrant.comPostgreSQL Training, Services and Support