[Nottingham] CPU idle cycles

Martin martin at ml1.co.uk
Mon Jun 18 16:19:47 BST 2007

Hopefully a quick question...

Is there an easy way to count how many idle cycles a x86 CPU suffers for
real application code due to memory bandwidth limits?

That is, how to determine what percentage performance is lost due to the
CPU having to wait for memory accesses?



Martin Lomas
martin at ml1.co.uk

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