Intel® VTune™ Amplifier

Data Collection Limit

When running an analysis, the Intel® VTune™ Amplifier collects a predefined amount of data and suspends data collection. This prevents from collecting large amount of data that may slow down the data processing. For example, it may happen when running Concurrency and Locks and Waits analyses on frequently contended applications or when analyzing long profiles.

Typically, the default maximum amount of raw data used by the VTune Amplifier for the result file is enough to identify a problem.

When the data size limit is reached and the data collection is suspended, click the button the command toolbar on the right. VTune Analyzer proceeds with the analysis of the collected data. If you want to extend the data collection for your target application for future analysis runs, you may modify the default size limit for collected data as follows:

  1. Click the Configure Project button on the VTune Amplifier toolbar.

    The Analysis Target tab opens.

  2. Select a required target system from the left pane and a target type from the drop-down menu in the right pane.
  3. From the Advanced section, use the spin box to configure the Collection data limit option.

    Limiting data collection to the beginning of the target execution reduces the size of the raw data gathered by the VTune Amplifier and enables you to quickly start analyzing collection results. If you want to keep the default data size limit but continue collecting data on the next portion of the target execution, run the analysis after a delay using the Start Paused option.

Parent topic: Configuring Target Options

See Also

Configuring Target Options
Analysis Target Setup Before running a VTune Amplifier analysis, you have to specify what you want to profile - your analysis target, which could be an executable file, a process, or a whole system.