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Re: Dual-CPU slower then Single under HP?

From: The Hermit Hacker <scrappy(at)hub(dot)org>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Dual-CPU slower then Single under HP?
Date: 2001-06-06 18:46:30
Message-ID: Pine.BSF.4.33.0106061546030.38494-100000@mobile.hub.org (view raw or flat)
Thread:
Lists: pgsql-hackers
On Wed, 6 Jun 2001, Tom Lane wrote:

> The Hermit Hacker <scrappy(at)hub(dot)org> writes:
> > 	The 4m:30s is running one process for 100K inserts ... with two
> > CPUs/processes, it increases the time to process by almost 40% ... ?
>
> Do you mean two processes inserting into the same table?

Yup ...

> I committed some changes recently that reduce the amount of contention
> involved in that scenario, but it's not released yet.

So, this is one of those "known problem, improved in v7.2" sort of issues?



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Subject: Re: Dual-CPU slower then Single under HP?
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