Re: [PATCH 1/5] cpuset memory spread basic implementation

[Christoph Lameter]

On Mon, 6 Feb 2006, Andi Kleen wrote:
> On the other hand global interleaving actually worked for the page cache 
> in production in SLES9, so it can't be that bad.

I would see it as an emergency measure given the bad control over locality 
in SLES9 and the lack of an efficient zone reclaim.

> The question is just if it's a common situation. My guess is that just
> giving local memory priority but not throwing away all IO caches
> when the local node fills up would be a generally useful default policy.

We do not throw away "all IO caches". We take a portion of the inactive 
list and scan for freeable pages.

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