linux-linaro pull request

[Loïc Minier]

On Sat, Sep 18, 2010, Nicolas Pitre wrote:
> Yet, highmem carries some small overhead of its own.  So if you know 
> that all the applications you need have a workset that always fits in a 
> reduced address space then it is more advantageous to use a 2G:2G 
> user:kernel split and keep highmem off.

 Question: does highmem impact performance as soon as it's turned on, or
 only when actually using a lot of memory because the sliding window
 needs to move back and forth?

 I'm asking because I would prefer if we were to have highmem turned on
 in all our kernels, even if not strictly required, as to have less
 divergence across SoCs, but I don't know whether there's a performance
 cost to it

-- 
Loïc Minier