Josh Berkus wrote:
That doesn't make much sense unless there's some special advantage to a
4K blocksize with the hardware itself.

Given that pgbench is always doing tiny updates to blocks, I wouldn't be surprised if switching to smaller blocks helps it in a lot of situations if one went looking for them. Also, as you point out, pgbench runtime varies around wildly enough that 10% would need more investigation to really prove that means something. But I think Yeb has done plenty of investigation into the most interesting part here, the durability claims.
--
Greg Smith  2ndQuadrant US  Baltimore, MD
PostgreSQL Training, Services and Support
g...@2ndquadrant.com   www.2ndQuadrant.us


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