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Re: Rewriting Free Space Map - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Rewriting Free Space Map
Date
Msg-id 23294.1206046761@sss.pgh.pa.us
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In response to Rewriting Free Space Map  ("Heikki Linnakangas" <heikki@enterprisedb.com>)
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"Heikki Linnakangas" <heikki@enterprisedb.com> writes:
> More precisely, on CVS HEAD it takes between 7.1-7.2%. After extending 
> BufferTag with one uint32, it takes 7.4-7.5%. So the effect is 
> measurable if you try hard enough, but not anything to get worried about.

And if we adopt the allegedly-faster hash_any that's in the patch
queue, the difference should get smaller yet.
        regards, tom lane

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