Re: [RFC 00/15] x86_64: Optimize percpu accesses

[Mike Travis]

Eric W. Biederman wrote:
> "H. Peter Anvin" <hpa@xxxxxxxxx> writes:
> 
>> Almost half a megabyte in current allyesconfig, and that is not including
>> dynamic allocations at all.
> 
> Ouch!  This start to make me sad I removed the arbitrary cap on static
> percpu memory.
> 
> Eric

The biggest growth came from moving all the xxx[NR_CPUS] arrays into
the per cpu area.  So you free up a huge amount of unused memory when
the NR_CPUS count starts getting into the ozone layer.  4k now, 16k
real soon now, ??? future?

Mike
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