> On 21 Jun 2022, at 12:35, Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> I wonder if the newly introduced "recovery_prefetch" [1] for PG-15 can
> help your case?
AFAICS recovery_prefetch tries to prefetch main fork, but does not try to prefetch WAL itself before reading it. Kirill
istrying to solve the problem of reading WAL segments that are our of OS page cache.
Best regards, Andrey Borodin.