On Windows, VTune supports managed code sampling (Java, Python, ...); it basically decodes the internal state of the VM (such as PyEval_FrameEx). The basics wor

On Windows, VTune supports managed code sampling (Java, Python, ...); it basically decodes the internal state of the VM (such as PyEval_FrameEx). The basics work on Linux as well, but as usual setup is more painful due to kernel issues. The most basic analyses do not require kernel support. It's one of these "Developers, Developers, Developers, Developers, Developers, Developers, Developers" Tools... - PyCharm has a Concurrency Visualizer, which sounds nice, but it does only apply to Python locks, excluding the GIL. Oops...