Hi, On 2021-11-16 15:19:19 -0500, Robert Haas wrote: > > Hm. I think this might included a bunch of convoluting factors that make it > > hard to judge the actual size of the performance difference. > > Yes, I think so, too.
FWIW I ran that pgench thing I presented upthread, and I didn't see any meaningful and repeatable performance difference 354a1f8d220, ad26ee28250 and 0002 applied ontop of ad26ee28250. The run-to-run variance is way higher than the difference between the changes. Greetings, Andres Freund