From: Hannu Krosing <hannu@tm.ee>
To: Tatsuo Ishii <t-ishii@sra.co.jp>
Cc: pgsql-hackers@postgresql.org
Subject: Re: 7.1 vs. 7.2 on AIX 5L
Date: Wed, 09 Jan 2002 12:03:06 +0200
Message-ID: <3C3C155A.6948096F@tm.ee> (raw)
References: <20020109103536T.t-ishii@sra.co.jp>
Tatsuo Ishii wrote:
>
> Hi,
>
> I have made a new version of pgbench which allows not to update
> branches and tellers tables, which should significantly reduce the
> contentions. (See attached patches against current. Note that the
> paches also includes changes removing CHECKPOINT command while
> running in initialization mode (pgbench -i)). With the patches you
> could specify -N option not to update branches and tellers tables.
>
> With the new pgbench, I ran a test with current and 7.1 and saw
> not-so-small differences. Any idea to get better performance on 7.2
> and AIX 5L combo?
>
> 7.2 with lwlock.patch rev.2
> 7.1.3
> AIX 5L 4way with 4GB RAM
> testing script is same as my previous postings (except -N for pgbench,
> of course).
>
> ------------------------------------------------------------------------
> Name: pgbench.patch
> pgbench.patch Type: Plain Text (Text/Plain)
> Encoding: 7bit
>
> Name: result-Jan-09.png
> result-Jan-09.png Type: PNG Image (image/png)
> Encoding: base64
Could you add some labels to lines as Tom did ?
We can only guess which line is which.
--------------
Hannu
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To: pgsql-hackers@postgresql.org
Cc: hannu@tm.ee, t-ishii@sra.co.jp
Subject: Re: 7.1 vs. 7.2 on AIX 5L
In-Reply-To: <3C3C155A.6948096F@tm.ee>
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