Re: Bug: Buffer cache is not scan resistant

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Jim Nasby <decibel(at)decibel(dot)org>
Cc: Josh Berkus <josh(at)agliodbs(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Bug: Buffer cache is not scan resistant
Date: 2007-03-06 07:17:46
Message-ID: 28102.1173165466@sss.pgh.pa.us
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Jim Nasby <decibel(at)decibel(dot)org> writes:
> An idea I've been thinking about would be to have the bgwriter or
> some other background process actually try and keep the free list
> populated,

The bgwriter already tries to keep pages "just in front" of the clock
sweep pointer clean.

regards, tom lane

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