Re: Seq scans roadmap

From: Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
To: Luke Lonergan <LLonergan(at)greenplum(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Simon Riggs <simon(at)enterprisedb(dot)com>, Zeugswetter Andreas ADI SD <ZeugswetterA(at)spardat(dot)at>, "CK(dot)Tan" <cktan(at)greenplum(dot)com>, Jeff Davis <pgsql(at)j-davis(dot)com>
Subject: Re: Seq scans roadmap
Date: 2007-05-15 09:42:28
Message-ID: 46498084.5000909@enterprisedb.com
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Luke Lonergan wrote:
> 32 buffers = 1MB with 32KB blocksize, which spoils the CPU L2 cache
> effect.
>
> How about using 256/blocksize?

Sounds reasonable. We need to check the effect on the synchronized
scans, though.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

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