Re: [PATCHSET x86/core/percpu] implement dynamic percpu allocator

From: Tejun Heo
Date: Wed Feb 18 2009 - 19:31:26 EST


Tejun Heo wrote:
> One trick we can do is to reserve the initial chunk in non-vmalloc
> area so that at least the static cpu ones and whatever gets
> allocated in the first chunk is served by regular large page
> mappings. Given that those are most frequent visited ones, this
> could be a nice compromise - no noticeable penalty for usual cases
> yet allowing scalability for unusual cases. If this is something
> which can be agreed on, I'll pursue this.

I've given more thought to this and it actually will solve most of
issues for non-NUMA but it can't be done for NUMA. Any better ideas?

Thanks.

--
tejun
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