Re: [patch 00/41] cpu alloc / cpu ops v3: Optimize per cpu access

[Christoph Lameter]

On Fri, 30 May 2008, Matthew Wilcox wrote:

> On Fri, May 30, 2008 at 10:50:04AM -0700, Christoph Lameter wrote:
> > cpu alloc v2 had an extendable per cpu space. You have the patches. We 
> > could put this on top of this patchset if necessary. But then it not so 
> > nice and simple anymore. Maybe we can rstrict the use of cpu alloc 
> > instead to users with objects < cache_line_size() or so?
> 
> Restricting the use of cpu_alloc based on size of object is no good when
> you're trying to allocate 45,000 objects.  Extending the per CPU space
> is the only option.

Ok guess we need to bring the virtually mapped per cpu patches forward.

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