Re: Plan time Improvement - 64bit bitmapset

From: Gregory Stark <stark(at)enterprisedb(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Plan time Improvement - 64bit bitmapset
Date: 2009-06-10 11:38:34
Message-ID: 87ws7kb9ol.fsf@oxford.xeocode.com
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Andres Freund <andres(at)anarazel(dot)de> writes:

> Plan time (averaged) without change:
> cnt: 40 (4 times per session)
> avg: 4572ms
>
> Plan time (averaged) with change:
> cnt: 40 (4 times per session)
> avg: 4236ms
>
> ~7% difference. Same with higher number of repetitions and with most other
> planner settings I tried

What are you comparing here?

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