lars hofhansl <lhofhansl@yahoo.com> wrote:
> Yep, I am not seeing the SELECTs slow down (measurably) during
> checkpoints (i.e. when dirty pages are flushed to disk), but only
> during writing of the WAL files.
How about if you do a whole slew of the UPDATEs and then stop those
and run a bunch of SELECTs? (I don't think I've seen anything
mentioned so far which rules out hint bit rewrites as an issue.)
I see you have tweaked things to balance the writes -- you might
want to try further adjustments to reduce backend writes and see
what happens.
-Kevin