Vtune gets confusing results when collecting openmp benchmarks

Vtune gets confusing results when collecting openmp benchmarks

I used type <uarch-exploration> to collect performance data of my openmp offload benchmarks.

In the bottom-up tab, I found the most hottest function is a kernel function with unknown name(from vmlinux). And when I expand it to see the caller, vtune shows no call stack information. See attached image.

I wonder how this happened and what does this mean. Could anyone give me some help?

 

 

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you should check the call stack dialog when configure.

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