lars hofhansl <lhofha...@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
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