On 28/12/2012 15:46, Ewald wrote:
Hmmm, that's weird. The results of the Xeon are what I was expecting.
Quite frankly I don't know how to fix it. Maybe getting the maximum
amount of threads sharing the caches might prove helpfull, but then
again it is guesswork. Anyway, can you give this code a try?
Than if I take the highest value from this and the previous program it
*might* provide a sensible result. (?)
Xeon:#max threads sharing caches: 16
Atom:#max threads sharing caches: 2
On Xeon cpuid 00000004 returns 0x1c004121 in rax , on Atom 0x4121 in
eax. So both report 2 threads per cache. The cores per package (bits
31..26) is not coherent. Don't know how to solve that.
Ludo
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