Problem: Wrong Data for Short Runs on the Intel® Xeon Phi™ Coprocessor

If you had collected data on an application taking less than a second to run on an Intel® architecture host processor and then tried the same workload on the attached Intel Xeon Phi™ coprocessor, the performance statistics could be distorted. For example, on the host using a recent Intel Xeon® architecture, the sample result for General Exploration analysis looks like this:

Port 0

Metric Description

This metric represents Core cycles fraction CPU dispatched uops on execution port 0 (SNB+: ALU; HSW+:ALU and 2nd branch)

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