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Re: difference between cache buffer lru chain and cache buffers chains

From: <xhoster_at_gmail.com>
Date: 23 Mar 2006 17:06:55 GMT
Message-ID: <20060323121458.620$wV@newsreader.com>


"Chintu" <agarwalp_at_eeism.com> wrote:
> What is the difference between cache buffer lru chain and cache buffers
> chains ?? Are these two different chains with different set of buffered
> blocks or two chains maintain buffer block information in two different
> ways?

The latter. They keep track of the same blocks, but in different ways. One lets you quickly find a block in memory by using it's address (i.e. where it would be on (virtual) disk if it were not already in memory) and the other lets you quickly find the oldest blocks.

Xho

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Received on Thu Mar 23 2006 - 11:06:55 CST

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