Python/C Profiler Functions

If a performance bottleneck occurs when you run a Python or Python and C/C++ hybrid program, you can use this tool to analyze hotspot functions and locate code problems.

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

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

An RPM package is used as an example.

Example

View the information about Python/C performance analysis functions:

1	devkit py-perf -h

Command output:

 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.

**Table 1** Function description
Function	Description
help	Displays help information.
hotspot	Python/C performance hotspot analysis.

Parent topic: Python/C Profiler