Linux Tools Project/PERF/User Guide
PERF is a performance counters subsystem in Linux. Performance counters are CPU hardware registers that count hardware events such as instructions executed and cache-misses suffered. These counters aid in profiling applications to detect hotspots in the application. PERF provides per task, per CPU and per-workload counters, sampling on top of these and source code event annotation.
The PERF plug-in for Eclipse allows the developer to execute profiles in their applications in a seamlessly way, using quick launch actions and visualizing the results in an user-friendly interface.
Launching a Profile
Perf plug-in provides useful profile information in a user-friendly interface, gathering the required information from the Perf command-line tool and hooking it into the Eclipse and CDT's facilities.
During a profile run, the Perf plug-in will start, stop and perform other Perf tasks in the background as needed, while the binary being profiled runs as normal.
The Perf plug-in for Eclipse includes a one-click launch feature which profiles the binary with default options. To use the one-click launch, right click on the project, the binary or in an open editor for a source file belonging to that project. Then, navigate to Profile As and click Profile With Perf to start the launch.
Launching a Customized Profile
The Perf plug-in allows you to configure a profile run using several options. These options are exposed via the launch configuration in a user-friendly manner, allowing for a more complex profile.
To customize a profile, right click on the project, the binary or in an open editor for a source file belonging to that project. Then, navigate to Profile As > Profile Configurations... to open the Profile Configurations menu. Refer to the Profiling Configuration section for more information about configuring a profile.
After configuring a profile, click the Profile button to launch the profile.
Information about how to configure a profile session.
Information about the Perf View.