L4T Multimedia API Reference

32.2 Release

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Application Resource Profiler API

Detailed Description

Helper class for profiling the overall application resource usage.

NvApplicationProfiler spawns a background thread which periodically measures resource usage. This sampling interval can be configured. Smaller sampling intervals may lead to more accurate results but the background thread itself will have a higher CPU usage.

Only one instance of NvApplicationProfiler object gets created for the application. It can be accessed using getProfilerInstance().

NvApplicationProfiler currently samples CPU usage and provides peak and average CPU usage during the profiling duration. It requires that the CPU frequency be constant over the entire duration. To force this, NvApplicationProfiler will start only when the CPU governor is set to performance.

Data Structures

class  NvApplicationProfiler