Re: VM tuning through fault trace gathering [with actual code]

Rik van Riel (riel@conectiva.com.br)
Mon, 25 Jun 2001 14:57:39 -0300 (BRST)


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/

Send all your spam to aardvark@nl.linux.org (spam digging piggy)

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/