Re: multibyte performance

From: Hannu Krosing <hannu(at)tm(dot)ee>
To: Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: multibyte performance
Date: 2001-09-27 08:00:41
Message-ID: 3BB2DCA9.B0FAF681@tm.ee
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Tatsuo Ishii wrote:
>
> I did some benchmarking with/without multibyte support using current.

...

> (2) pgbench
>
> With multibyte support(first column is the concurrent user, second is
> the TPS):
...
> 32 95.947363
> 64 92.718780
> 128 61.725883
>
> Witout multibyte support:
...
> 32 92.283645
> 64 86.936559
> 128 87.584099

Do you have any theory why multibyte passes non-mb at 128 ?

Some subtle timing thing perhaps (or just bad luck for non-mb at 128)?

-----------
Hannu

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