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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What's the performance counter of how many AVX instructions executed on Haswell processor

Wesley_H_
Beginner
‎10-27-2014 01:55 AM
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I read the latest SDM which published in this September, but I couldn't find the description of the performance counter about the AVX on Haswell. So I could not get the number from PMU too. Any knows this?  Thanks in advance :)

BR,

Wesley

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McCalpinJohn
Honored Contributor III
‎10-27-2014 06:47 AM
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It appears that there are no documented counters for AVX events in the Haswell products.

It is possible that event 0x11 (SIMD_FP_256) is still implemented in Haswell (I have not checked), but this event over-counts so badly that it is not very useful.  This is discussed in a number of other forum threads, e.g., https://software.intel.com/en-us/forums/topic/499193

 

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