On Fri, Dec 02, 2016 at 01:44:55PM +0530, Srinivas Ramana wrote: > Extend the trace_clock to support the arch timer cycle > counter so that we can get the monotonic cycle count > in the traces. This will help in correlating the traces with the > timestamps/events in other subsystems in the soc which share > this common counter for driving their timers. I'm not sure I follow this reasoning. What's wrong with nanoseconds? In particular, the "perf" trace_clock hangs off sched_clock, which should be backed by the architected counter anyway. What does the cycle counter in isolation tell you, given that the frequency isn't architected? I think I'm missing something here. Will -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
