oprofile is a profiling tool in Red Hat-based Linux distributions that helps analyze the performance of applications and system behavior. It focuses on collecting statistical data about the execution of programs, including information about CPU usage, cache misses, and more. Table with information and examples related to the oprofile command:
| Command | Description | Example |
|---|---|---|
opcontrol --start | Start profiling data collection | opcontrol --start |
opcontrol --stop | Stop profiling data collection | opcontrol --stop |
opreport | Display profiling report | opreport |
ophelp | List available events and options | ophelp |
opcontrol --status | Check the status of oprofile | opcontrol --status |
opannotate <binary> | Annotate a binary with profiling data | opannotate /path/to/executable |
opcontrol --reset | Reset profiling data | opcontrol --reset |
opcontrol --deinit | Deinitialize oprofile | opcontrol --deinit |
opcontrol --setup | Configure oprofile settings | opcontrol --setup |
Examples:
- Start profiling data collection:
opcontrol --start- Stop profiling data collection:
opcontrol --stop- Display a profiling report:
opreport- List available events and options:
Bash
ophelp- Check the status of oprofile:
Bash
opcontrol --status- Annotate a binary with profiling data:
Bash
opannotate /path/to/executable- Reset profiling data:
Bash
opcontrol --reset- Deinitialize oprofile:
Bash
opcontrol --deinit- Configure oprofile settings:
Bash
opcontrol --setupRemember that oprofile provides deep insights into how your programs utilize system resources, but understanding and interpreting the results might require familiarity with performance analysis concepts. Additionally, oprofile may have limited support on newer systems, as it’s gradually being replaced by more advanced profiling tools and techniques.
