Python/C Profiler Functions

Prerequisites

• The Python/C Profiler has been installed. See Installing the Tool.
• If you have installed the tool using a compressed package, decompress the package and switch to the tool directory. Then run the command in ./ mode, for example, ./devkit py-perf -h. If you have installed the tool using an RPM package, run devkit py-perf -h. This section uses an RPM package as an example.

Command Function

Uses ptrace to sample Python programs and Python & C/C++ hybrid programs, analyzes call stacks, obtains top 20 hotspot functions, and draws flame graphs.

Syntax

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devkit py-perf [-h | --help] TASK [ARGS]

Example

View the information about Python/C performance analysis functions:

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devkit py-perf -h

Command output:

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 Usage: devkit py-perf [-h | --help] TASK [ARGS]

 The most commonly used devkit py-perf sub tasks are:
   help      Get help information
   hotspot   Run the hotspot collection and analysis task

 See 'devkit py-perf TASK --help' for more information on a specific task.