Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem

From: Rik van Riel
Date: Thu Feb 22 2007 - 22:33:59 EST

yunfeng zhang wrote:
Performance improvement should occur when private pages of multiple processes are messed up,

Ummm, yes. Linux used to do this, but doing virtual scans
just does not scale when a system has a really large amount
of memory, a large number of processes and multiple zones.

We've seen it fall apart with as little as 8GB of RAM.

Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is. Each group
calls the other unpatriotic.
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