On Wed, 11 Mar 2009 13:28:31 -0400 (EDT)
Steven Rostedt <rostedt@goodmis.org> wrote:

> 
> On Wed, 11 Mar 2009, Pierre Ossman wrote:
> 
> > 
> > Is this per actual CPU though? Or per CONFIG_NR_CPUS? 3 MB times 64
> > equals roughly the lost memory. But then again, you said it was 10 MB
> > per CPU for 2.6.27...
> 
> It uses the possible_cpu mask. How many possible CPUs are on your box? 
> I've thought about making this handle hot plug CPUs, but that will
> require a little more overhead for everyone, whether or not you hot plug a 
> cpu.
> 

CONFIG_NR_CPUS is 64 for these compiles.

Rgds
-- 
     -- Pierre Ossman

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