new vacuum is slower for small tables

From: "Pavel Stehule" <pavel(dot)stehule(at)gmail(dot)com>
To: "postgres hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject: new vacuum is slower for small tables
Date: 2008-12-08 12:31:38
Message-ID: 162867790812080431m509bdac1lb8782a54c3dfe215@mail.gmail.com
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Hello,

I did small tests and I found so for small tables (less 1000 rows)
VACUUM based on visibility maps are slower than old implementation

it is about 5ms X 20ms

Regards
Pavel Stehule

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