On Thu, 4 Aug 2016 11:30:33 -0400
Steven Rostedt [off-list ref] wrote:

Note, I'm currently working on adding code to detect NMIs to this as
well. And perhaps even tracing SMI counters. Just to show what caused
the latency, as latency isn't measured by the counters (that I know of).

I like the trace report, but for one small thing; I think it's worth either adding units to the reported latency values (us suffix) or putting in a header line that hwlatdetect values are reported in microseconds.

   <...>-2644  [001] d...   202.735708: [99] inner:13 outer:16 ts:1470352534.886878855
   <...>-2644  [001] d...   206.767274: [100] inner:14 outer:18747 ts:1470352538.917966818 smi-total:2
   <...>-2644  [002] d...   207.775164: [101] inner:0 outer:19162 ts:1470352539.920988709 smi-total:6
   <...>-2644  [003] d...   208.783067: [102] inner:19376 outer:19276 ts:1470352540.923010578 smi-total:6
   <...>-2644  [000] d...   209.827416: [103] inner:19650 outer:20665 ts:1470352541.926032469 smi-total:6
   <...>-2644  [001] d...   210.831062: [104] inner:20526 outer:20680 ts:1470352542.973055312 smi-total:6

Clark

-- 
The United States Coast Guard:
Ruining natural selection since 1790