Software Tuning, Performance Optimization & Platform Monitoring
Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.
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Want to count L2 data cache misses without prefetching

Wei_W_3
Beginner
‎06-02-2016 01:19 PM
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I was using PAPI to measure L2 data cache misses but the measurement seems to be affected by data prefetching. I am not sure whether my CPU provides a way to do measure cache misses without prefetching. If so, how can I do it?

CPU model: Intel(R) Xeon(R) CPU E5-4620 0 @ 2.20GHz (45)

 

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TimP
Honored Contributor III
‎06-02-2016 02:13 PM
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Did you read https://software.intel.com/en-us/articles/disclosure-of-hw-prefetcher-control-on-some-intel-processors and the like?

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