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Choosing System-wide Profiling

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Intel® VTune™ Amplifier lets you broaden your focus from a particular application/process analysis to system analysis.

Note

You cannot profile the system if you chose to run an analysis type based on the user-mode sampling and tracing collection.

To specify the system as the analysis target:

  1. Click the Project Properties button on the VTune Analyzer toolbar.

    The Project Properties dialog box opens with the Target tab enabled.

  2. From the left pane, select the Profile System target type.

    The Profile System configuration pane opens on the right.

  3. Configure the target properties, if required, and click OK.
Outcome: You selected the system as a performance target. VTune Amplifier will collect data on all processes running on the system. When it displays the results, you will be able to filter the data based on the processes of modules of interest.

Note

For driverless event-based sampling data collection, VTune Amplifier for Systems supports local and remote Launch Application, Attach to Process and Profile System target types. However, specifying a call stack collection and MRTE/JIT specific profiling is not supported. Support for these target types fully depends on the Linux Perf profiling credentials specified in the /proc/sys/kernel/perf_event_paranoid file and managed by the administrator of your system using root credentials. For more information see the perf_event related configuration files topic at http://man7.org/linux/man-pages/man2/perf_event_open.2.html. By default, only user processes profiling at the both user and kernel spaces is permitted, so you need granting wider profiling credentials via the perf_event_paranoid file to employ the Profile System target type.

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