Messages in this thread | | | Date | Fri, 19 Aug 2016 16:09:28 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v2 0/4] tracing: Add Hardware Latency detector tracer |
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On Wed, Aug 10, 2016 at 09:53:56AM -0400, Steven Rostedt wrote: > Changes since v1: > > . Added checks for CONFIG_GENERIC_SCHED_CLOCK, and if that is set, > only nmi_counts will be recorded when an NMI is triggered, but not > the time in NMI, because the generic sched_clock is not NMI safe. > (suggested by Sebastian Andrzej Siewior)
So any of the platforms using GENERIC_SCHED_CLOCK _have_ NMIs ?
In any case, for those you could probably use ktime_get_mono_fast_ns().
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