Re: Subtle MM bug

From: Rik van Riel (riel@conectiva.com.br)
Date: Mon Jan 08 2001 - 12:16:48 EST


On Sun, 7 Jan 2001, Wayne Whitney wrote:

> Well, here is a workload that performs worse on 2.4.0 than on 2.2.19pre,

> The typical machine is a dual Intel box with 512MB RAM and 512MB swap.

How does 2.4 perform when you add an extra GB of swap ?

2.4 keeps dirty pages in the swap cache, so you will need
more swap to run the same programs...

Linus: is this something we want to keep or should we give
the user the option to run in a mode where swap space is
freed when we swap in something non-shared ?

regards,

Rik

--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

http://www.surriel.com/ http://www.conectiva.com/ http://distro.conectiva.com.br/

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