> - metrics -- L1 cacheline size is the important one: you align array
> elements to this size when you want a per-cpu array, so that multiple
> CPUs do not share a cacheline for accessing their "own" structure.
> Proper alignment avoids "cacheline ping-pong", as it's called,
> whenever two CPUs need to access "their" element of the same array at
> the same time.
Anyone can give me some pointers on how this is done runtime ? (name of
the .c file is fine).
I'm still looking at the basic stuff, but haven't bumped into this one
yet...
Igmar
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