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.
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:
ftracekernel subsystem, and kernelshark, a graphical interface to trace-cmd.