Intel® VTune™ Amplifier XE and Intel® VTune™ Amplifier for Systems Help

Android Device - Profile System Target Type

Use this configuration to specify your Android system as an analysis target. Intel® 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.

To access the configuration, open the Analysis Target window, choose the Android (ADB) target system on the left, select the Profile System target type from the drop-down menu on the right and in the via ADB on device drop-down menu select your Android device.

Basic Options

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Automatically resume collection after (sec)

Specify the time that should elapse before the data collection is resumed. When this options is used, the collection starts in the paused mode automatically.

Automatically stop collection after (sec)

Set the duration of data collection in seconds starting from the target run. This is useful if you want to exclude some post-processing activities from the analysis results.

Advanced Options

Use the Advanced section to provide more details on your target configuration.

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Analyze unplugged device check box

Enable collection on an unplugged device to exclude ADB connection and power supply impact on the results. When this option is used, you configure and launch an analysis from the host but data collection starts after disconnecting the device from the USB cable or a network. Collection results are automatically transferred to the host as soon as you plug in the device back.

Duration time estimate menu

Estimate the application duration time. This value affects the size of collected data. For long running targets, sampling interval is increased to reduce the result size. For hardware event-based sampling analysis types, the VTune Amplifier uses this estimate to apply a multiplier to the configured sample after value.

Limit collected data by section

If the amount of raw collected data is very large and takes long to process, use any of the following options to limit the collected data size:

  • Result size from collection start, MB: Set the maximum possible result size (in MB) to collect. VTune Amplifier will start collecting data from the beginning of the target execution and suspend data collection when the specified limit for the result size is reached. For unlimited data size, specify 0.

  • Time from collection end, sec: Set the timer enabling the analysis only for the last seconds before the target run or collection is terminated. For example, if you specified 2 seconds as a time limit, the VTune Amplifier starts the data collection from the very beginning but saves the collected data only for the last 2 seconds before you terminate the collection.

Note

The size of data stored in the result directory may not exactly match the specified result size due to the following reasons:

  • The collected data may slightly exceed the limit since the VTune Amplifier only checks the data size periodically.

  • During finalization, the VTune Amplifier loads the raw data into a database with additional information about source and binary files.

CPU mask

Specify CPU(s) to collect data on (for example: 2-8,10,12-14). This option is applicable to hardware event-based analysis types only.

Custom collector

Provide a command line for launching an external collection tool, if any. You can later import the custom collection data (time intervals and counters) in a CSV format to a VTune Amplifier result. Click the Modify button to add a path to your external collector.

Result location options

Select where you want to store your result file. By default, the result is stored in the project directory.

What's Next?

Click the Choose Analysis button on the right to switch to the Analysis Type tab for selecting, configuring, and launching an analysis. The Analysis Type tab displays analysis types applicable to the specified target type.

Note

You can launch an analysis only for an accessible target. For an arbitrary target, you can only generate a command line configuration, save it to the buffer and later launch it on the intended host.

See Also