1The **rtla timerlat** tool is an interface for the *timerlat* tracer. The 2*timerlat* tracer dispatches a kernel thread per-cpu. These threads 3set a periodic timer to wake themselves up and go back to sleep. After 4the wakeup, they collect and generate useful information for the 5debugging of operating system timer latency. 6 7The *timerlat* tracer outputs information in two ways. It periodically 8prints the timer latency at the timer *IRQ* handler and the *Thread* 9handler. It also enable the trace of the most relevant information via 10**osnoise:** tracepoints. 11