Re: Thinking about breaking up the BufMgrLock

From: "Jim C(dot) Nasby" <decibel(at)decibel(dot)org>
To: Greg Stark <gsstark(at)mit(dot)edu>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Thinking about breaking up the BufMgrLock
Date: 2005-02-07 05:26:52
Message-ID: 20050207052652.GG47995@decibel.org
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On Sun, Feb 06, 2005 at 10:53:38PM -0500, Greg Stark wrote:
> This is a well understood problem. I remember it from my Systems class in
> school. And searching on google finds lecture notes that match my memory that
> there are other systems generally preferred to LRU precisely because they
> don't require extensive list management in the critical path.
>
> For example these slides:
>
> http://www.cs.utexas.edu/users/lorenzo/corsi/cs372/03F/notes/11-20.pdf

It might be worth taking a gander at the appropriate sections of either
The Design and Implementation of the 4.4 BSD Operating System
(http://lnk.nu/amazon.com/1ds) or the 4.3 version
(http://lnk.nu/amazon.com/1dt) I've read the 4.3 one, and there's a lot
of discussion of the buffer management algorithms chosen, and why they
were chosen.
--
Jim C. Nasby, Database Consultant decibel(at)decibel(dot)org
Give your computer some brain candy! www.distributed.net Team #1828

Windows: "Where do you want to go today?"
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FreeBSD: "Are you guys coming, or what?"

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