On Sat, 6 Apr 2024 at 23:17, Jelte Fennema-Nio <postgres@jeltef.nl> wrote:
> Weird that on your machines you don't see a difference. Are you sure
> you didn't make a silly mistake, like not restarting postgres or
> something?
I'm sure. I spent quite a long time between the AMD and an Apple m2 trying.
I did see the same regression as you on the smaller numbers. I
experimented with the attached which macro'ifies internal_flush() and
pg_noinlines internal_flush_buffer.
Can you try that to see if it gets rid of the regression on the first two tests?
David
