Re: [RFC, PATCH] Avoid manual shift-and-test logic in AllocSetFreeIndex

From: Jeremy Kerr <jk(at)ozlabs(dot)org>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Atsushi Ogawa <a_ogawa(at)hi-ho(dot)ne(dot)jp>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Florian Weimer <fweimer(at)bfk(dot)de>
Subject: Re: [RFC, PATCH] Avoid manual shift-and-test logic in AllocSetFreeIndex
Date: 2009-06-05 04:04:00
Message-ID: 200906051404.01571.jk@ozlabs.org
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Hi Atsushi,

> In my benchmark program, it is a little different performance
> in fls implementation and inline asm implementation.
> However, the result of a pgbench is almost the same improvement.
>
> Here is the result of my benchmark.

Excellent, thank you for getting this extra set of numbers.

Cheers,

Jeremy

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