Re: Test request for Stats collector performance improvement

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Qingqing Zhou <zhouqq(at)cs(dot)toronto(dot)edu>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Test request for Stats collector performance improvement
Date: 2006-06-15 15:57:36
Message-ID: 200606151557.k5FFva918328@candle.pha.pa.us
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Tom Lane wrote:
> "Qingqing Zhou" <zhouqq(at)cs(dot)toronto(dot)edu> writes:
> > Obviously it matches your expectation.
>
> Hm? I don't see any improvement there:
>
> > --Before patch --
> > real 0m1.149s
> > real 0m1.121s
> > real 0m1.128s
>
> > -- After patch --
> > real 0m1.275s
> > real 0m4.063s
> > real 0m1.259s

The report is incomplete. I need three outputs:

stats off
stats on
stats on, patched

He only reported two sets of results.

--
Bruce Momjian http://candle.pha.pa.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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