[Openmcl-devel] counting cpu cycles?

Florian Dietz Florian.Dietz2 at gmx.de
Sat Dec 21 04:25:53 PST 2013

The function ccl::rdtsc can be used for counting cpu cycles, but it 
returns results depending on the current cpu the program is running on, 
which can be a problem for multithreaded applications.

Is there a way to get consistent values from the same cpu, so that one 
can measure how many cpu cycles a given function took to execute?

Alternatively, if this is not possible, would it be possible (and 
sensible) to restrict a process to only a single cpu, to avoid this problem?
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