Re: 2Q implementaion for PostgreSQL buffer replacement.

Looks good to me --- we will include it in 7.4.

Your patch has been added to the PostgreSQL unapplied patches list at:

http://momjian.postgresql.org/cgi-bin/pgpatches

I will try to apply it within the next 48 hours.

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Yutaka tanida wrote:
> Hi.
>
> I implement 2Q algorithm to PostgreSQL for buffer management , instead
> of LRU.
> It's known as low overhead and high performance than LRU. If you have
> some interests , see following URL.
>
> http://www.vldb.org/conf/1994/P439.PDF
>
> In my test (pgbench -S) , it improves 4% cache hit rate and 2% up
> performance comparing from LRU.
>
> Do you have any interest about this patch?
>
> --
> Yutaka tanida <yutaka(at)nonsensecorner(dot)com>
> http://www.nonsensecorner.com/

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