Re: migration cache, updated

[Marcelo Tosatti <marcelo.tosatti@cyclades.com>]

On Wed, Oct 27, 2004 at 04:25:24PM +0900, IWAMOTO Toshihiro wrote:
> At Tue, 26 Oct 2004 10:24:19 -0200,
> Marcelo Tosatti wrote:
> 
> > Pages with reference count zero will be not be moved to the page
> > list, and truncated pages seem to be handled nicely later on the
> > migration codepath.
> > 
> > A quick search on Iwamoto's test utils shows no sign of truncate(). 
> 
> IIRC, the easiest test method is file overwrite, such as
> 
> 	while true; do
> 		tar zxvf ../some.tar.gz
> 	done
> 
> 
> > It would be nice to add more testcases (such as truncate() 
> > intensive application) to his testsuite.
> 
> And it would be great to have an automated regression test suite.
> I wonder if OSDL's test harness(http://stp.sf.net/) could be used, but
> I had no chance to investigate any further.

I dont think it is usable as it is because the benchmarks are fixed
and you can't have scripts (your own commands) running as far as I 
remember - so its not possible to remove memory regions.

Other than that it should be fine - make a script to add/remove
memory zones and let the benchmarks run.

Cliff, Judith, is that right?

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