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Re: basic pgbench runs with various performance-related patches

From: Tatsuo Ishii <ishii(at)postgresql(dot)org>
To: robertmhaas(at)gmail(dot)com
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: basic pgbench runs with various performance-related patches
Date: 2012-01-24 06:26:15
Message-ID: 20120124.152615.179743663452846570.t-ishii@sraoss.co.jp (view raw or flat)
Thread:
Lists: pgsql-hackers
> ** pgbench, permanent tables, scale factor 100, 300 s **
> 1 group-commit-2012-01-21 614.425851 -10.4%
> 8 group-commit-2012-01-21 4705.129896 +6.3%
> 16 group-commit-2012-01-21 7962.131701 +2.0%
> 24 group-commit-2012-01-21 13074.939290 -1.5%
> 32 group-commit-2012-01-21 12458.962510 +4.5%
> 80 group-commit-2012-01-21 12907.062908 +2.8%

Interesting. Comparing with this:
http://archives.postgresql.org/pgsql-hackers/2012-01/msg00804.php
you achieved very small enhancement. Do you think of any reason which
makes the difference?
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp

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Subject: Re: basic pgbench runs with various performance-related patches
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