Re: [PATCH 2/9] ksm: let shared pages be swappable

[Chris Wright]

* Andrea Arcangeli (aarcange@xxxxxxxxxx) wrote:
> On Fri, Dec 04, 2009 at 09:16:40AM -0800, Chris Wright wrote:
> > That's why I mentioned the page of zeroes as the prime example of
> > something with a high mapcount that shouldn't really ever be evicted.
> 
> Just a nitpick, "never" is too much, it should remain evictable if
> somebody halts all VM from monitor and starts a workloads that fills
> RAM and runs for a very prolonged time pushing all VM into swap. This
> is especially true if we stick to the below approach and it isn't
> just 1 page in high-sharing.

Yup, I completely agree, that's what I was trying to convey by
"shouldn't really ever" ;-)

thanks,
-chris
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