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SubjectRe: VM tuning through fault trace gathering [with actual code]
On 25 Jun 2001, John Fremlin wrote:

> Last year I had the idea of tracing the memory accesses of the system
> to improve the VM - the traces could be used to test algorithms in
> userspace. The difficulty is of course making all memory accesses
> fault without destroying system performance.

Sounds like a cool idea. One thing you should keep in mind
though is to gather traces of the WHOLE SYSTEM and not of
individual applications.

There has to be a way to balance the eviction of pages from
applications against those of other applications.

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://distro.conectiva.com/

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