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Profiling.md

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Performance Profiling

Kernel

TBA

Perf

The default Debian kernel does not have the perf tool enabled. We need to compile it in order to use the perf tool like in a stock OS.

  1. Clone the custom kernel repo into the VM:
git clone /path/to/custom/kernel/repo kernel
cd kernel
  1. Install dependencies:
sudo apt install libelf-dev libdw-dev libunwind-dev
  1. Compile
cd tools/perf && make -j16

After the compilation succeeds, you will see the perf executable in the directory. And you can use the sudo ./perf ... command.

References

[1] https://eastrivervillage.com/Custom-perf-with-custom-kernel