Re: Fix bank selection logic in SLRU - Mailing list pgsql-hackers

> On 19 Dec 2024, at 15:01, Yura Sokolov <y.sokolov@postgrespro.ru> wrote:
>
> - `&` takes 0.69ns
> - `mult-rec` takes 2.94ns
> - `%` takes 3.24ns.

Thanks, Yura, for benchmarks and off-list conversation.
I’ve reproduced similar numbers on my Apple M2.
I agree that additional 3-4ns are negligible in case of SLRU access.



+    bits16        nbanks;

Perhaps, it’s not bits anymore. Also, is 64K banks ought enough for everybody?


Best regards, Andrey Borodin.