On Sat, Apr 10, 2010 at 8:23 AM, Erik Rijkers <er@xs4all.nl> wrote:
> I understand that in the scale=1000 case, there is a huge
> cache effect, but why doesn't that apply to the pgbench runs
> against the standby? (and for the scale=10_000 case the
> differences are still rather large)
I guess that this performance degradation happened because a number of
buffer replacements caused UpdateMinRecoveryPoint() often. So I think
increasing shared_buffers would improve the performance significantly.
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center
