Difference between revisions of "Linux Tools Project/PERF/User Guide"
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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. | 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. | ||
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| + | == Launching a Customized Profile == | ||
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| + | 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. | ||
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| + | 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. | ||
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| + | After configuring a profile, click the Profile button to launch the profile. | ||
= Profiling Configuration = | = Profiling Configuration = | ||
Revision as of 13:01, 12 April 2012
Contents
Overview
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.
One-click launch
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.
Profiling Configuration
Information about how to configure a profile session.
Perf View
Information about the Perf View.