Intel® ISA Extensions
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CPU Instruction counter register

nuclear_scientist
149 Views
Hi guys!

Our company is planning to buy Vtune and we played sufficient time with trial version.

The tool is great, but sometimes we don't need the all info statistic profiling gives.

There should be some CPU register, some MSR, i believe, to count executed instructions.
Does anybody knows how to access it or point to some document about the details?

Thanks, in advance
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TimP
Black Belt
149 Views
If you care to look hard enough, oprofile also samples instruction counts, in open source.
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