Identify program units that took the most CPU time (hotspots) by using the Intel® VTune™ Amplifier's Hotspots viewpoint. This viewpoint is available for all analysis results.
You can use the collection control APIs in your code to control the way the Intel® VTune™ Amplifier collects data for applications.
Use This Primitive
Intel® VTune™ Amplifier provides a command line interface, the amplxe-cl tool that is especially useful for remote analysis, scripted commands and conducting regular performance regression checks to monitor software performance over time.
This analysis type uses the hardware event-based sampling collection and system-wide Ftrace* collection to provide a consistent view of the storage sub-system combined with hardware events and an easy-to-use method to match user-level source code with I/O packets executed by the hardware.
All option descriptions in the Intel® VTune™ AmplifierCommand Line Interface Reference follow the general rules and templates described below.
Specify the duration for collection (in seconds).
Enable collection from an unplugged Android* device to exclude ADB connection and power impact on the results .
Start data collection in the paused mode.