Exploring Yocto's tracing and profiling tools
Tracing and profiling tools are used to increase the performance, efficiency, and quality of both, applications and systems. User space tracing and profiling tools make use of performance counters and static and dynamic tracing functionality that the Linux kernel offers, as we have seen in the previous recipes.
Getting ready
Tracing enables us to log an application's activity so that its behavior can be analyzed, optimized, and corrected.
Yocto offers several tracing tools including:
- trace-cmd: This is a command line interface to the
ftracekernel subsystem, and kernelshark, a graphical interface to trace-cmd. - perf: This is a tool that originated in the Linux kernel as a command line interface to its performance ...
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