Re: MultiXact\SLRU buffers configuration - Mailing list pgsql-hackers

From Andrey Borodin
Subject Re: MultiXact\SLRU buffers configuration
Date
Msg-id 15CA416B-3446-462D-902B-4883DD3ADEE6@yandex-team.ru
Whole thread Raw
In response to Re: MultiXact\SLRU buffers configuration  (Andrey Borodin <x4mmm@yandex-team.ru>)
Responses Re: MultiXact\SLRU buffers configuration
List pgsql-hackers

> 7 апр. 2021 г., в 14:44, Andrey Borodin <x4mmm@yandex-team.ru> написал(а):
>
> Maybe instead of fully associative cache with random replacement we could use 1-associative cache?
> i.e. each page can reside only in one spcific buffer slot. If there's something else - evict it.
> I think this would be as efficient as RR cache. And it's soooo fast.

I thought a bit more and understood that RR is protected from two competing pages in working set, while 1-associative
cacheis not. So, discard that idea. 

Best regards, Andrey Borodin.





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