The user may run sampling data collection with BIG application, but only have interest of limited code area, so collecting data for whole run is unnecessary. VTune™ Performance Analyzer's user interface provides "Start with data collection paused" function, so the user can run data collection session with pause mode, then use "Pause/Resume Activity" button to resume data collection when running activity.
However there is other way to do this better - that is, ActivityController can provide more powerful functions, such as Stop/Cancel/Pause/Resume Activity. In this way, the user doesn't need to click buttons on VTune™Analyzer's graphic user interface!
Please note if the user has no activity running, ActivityController will report "You are not currently running any Activities!"
ActivityController supports any situation of data collection, only if the user has started activity running.
Here are two examples of running VTune™ Analyzer under graphic user interface and command line. Please see their outputs after using ActivityController.
1) VTune™ Analyzer starts with paused mode
2) VTL command works as long run sampling session
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