>
>> The huge increase probably comes from the facts that
>> x11amp is switching CPU too often and the more
>> primitive L2 cache mapping on Neptune boards.
> 
>Well CPU switching doesn't explain my observations as I have lots of
>instances of seeing it on UP machines.
> 
>Dunno about the cache issues - to be honest I don't know why different
>page layouts in physical RAM makes such a big difference...
>                                                                                
Maybe TLB misses?

Emil

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