On Fri, 8 Mar 2019 15:36:18 +0200 Tzvetomir Stoyanov <tstoyanov@xxxxxxxxxx> wrote: > + <idle>-0 0d.h1. 106467.859747: function: ktime_get <-- tick_check_idle > +-- > +The 0d.h1. denotes this information. The first character is never a pass:['.'] > +and represents what CPU the trace was recorded on (CPU 0). The pass:['d'] denotes > +that interrupts were disabled. The pass:['h'] means that this was called inside > +an interrupt handler. The pass:['1'] is the preemption disabled (preempt_count) > +was set to one. The two pass:['.']s are "need_resched" flag and kernel lock There is no kernel lock counter. Should delete that last '.' in the example. -- Steve > +counter. If the "need_resched" flag is set, then that character would be a pass:['N']. > +See 'LATENCY FORMAT' section.