Category : perf

I am trying to use the perf tool of Linux on my WSL2 using Windows10 machine. I have done every step of the accepted answer here: WSL gprof reporting zero times When I ran "make" comment, I got a warning: Warning: Kernel ABI header at ‘tools/include/uapi/linux/stat.h’ differs from latest version at ‘include/uapi/linux/stat.h’ But the perf ..

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I am trying to measure a (complicated) C++ program using perf. I am using a remote server with Intel Xeon Platinum 8167M CPUs. By trying perf list, I found some events related to the floating point: floating point: fp_arith_inst_retired.128b_packed_double [Number of SSE/AVX computational 128-bit packed double precision floating-point instructions retired; some instructions will count twice ..

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I’m having an odd error with OpenMP using GCC 7.5.0 on on ARM/aarch64. When using OpenMP normally (e.g. with #pragma omp parallel for) there are no issues. When adding the num_threads directive (e.g. #pragma omp parallel for num_threads(2) the program runs fine, but when I try to profile the application with perf it crashes with ..

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