1*96b546c2SGopi Krishna MenonThe **rtla osnoise** tool is an interface for the *osnoise* tracer. The 2*96b546c2SGopi Krishna Menon*osnoise* tracer dispatches a kernel thread per-cpu. These threads read the 3*96b546c2SGopi Krishna Menontime in a loop while with preemption, softirq and IRQs enabled, thus 4*96b546c2SGopi Krishna Menonallowing all the sources of operating system noise during its execution. 5*96b546c2SGopi Krishna MenonThe *osnoise*'s tracer threads take note of the delta between each time 6*96b546c2SGopi Krishna Menonread, along with an interference counter of all sources of interference. 7*96b546c2SGopi Krishna MenonAt the end of each period, the *osnoise* tracer displays a summary of 8*96b546c2SGopi Krishna Menonthe results. 9