Re: Fix bank selection logic in SLRU

[Andrey Borodin]

> On 19 Dec 2024, at 15:01, Yura Sokolov <y.soko...@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.