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Re: [PATCH v4 0/3] *** Latency histograms - IRQSOFF,PREEMPTOFF ***

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Hi Binoy,

On 08/30/2016 12:28 PM, Binoy Jayan wrote:
> Examples of triggers:
> echo 'hist:key=latency.log2:val=hitcount:sort=latency' > /sys/kernel/debug/tracing/events/latency/latency_preempt/trigger
> echo 'hist:key=cpu,latency:val=hitcount:sort=latency if cpu==1' > /sys/kernel/debug/tracing/events/latency/latency_preempt/trigger
> echo 'hist:key=ltype,cpu:val=latency:sort=ltype,cpu if ltype==0' > /sys/kernel/debug/tracing/events/latency/latency_preempt/trigger
>
> Histogram output:
> cat /sys/kernel/debug/tracing/events/latency/latency_preempt/hist

Could you also add couple of test cases to 
tools/testing/selftests/ftrace/test.d/trigger?

Especially the sorting thing you mentioned in the other mail? Obviously 
first we need to figure out what is the expected behavior of it :)

cheers,
daniel

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[PATCH v4 0/3] *** Latency histograms - IRQSOFF,PREEMPTOFF *** Binoy Jayan <binoy.jayan@linaro.org> - 2016-08-30 12:30 +0200
  [PATCH v4 1/3] tracing: Deference pointers without RCU checks Binoy Jayan <binoy.jayan@linaro.org> - 2016-08-30 12:30 +0200
  [PATCH v4 3/3] tracing: Histogram for missed timer offsets Binoy Jayan <binoy.jayan@linaro.org> - 2016-08-30 12:30 +0200
    Re: [PATCH v4 3/3] tracing: Histogram for missed timer offsets Masami Hiramatsu <masami.hiramatsu@linaro.org> - 2016-08-30 13:00 +0200
      Re: [PATCH v4 3/3] tracing: Histogram for missed timer offsets Binoy Jayan <binoy.jayan@linaro.org> - 2016-09-02 14:50 +0200
        Re: [PATCH v4 3/3] tracing: Histogram for missed timer offsets Masami Hiramatsu <masami.hiramatsu@linaro.org> - 2016-09-02 18:00 +0200
    Re: [PATCH v4 3/3] tracing: Histogram for missed timer offsets Steven Rostedt <rostedt@goodmis.org> - 2016-08-30 16:20 +0200
      Re: [PATCH v4 3/3] tracing: Histogram for missed timer offsets Binoy Jayan <binoy.jayan@linaro.org> - 2016-08-31 13:40 +0200
        Re: [PATCH v4 3/3] tracing: Histogram for missed timer offsets Steven Rostedt <rostedt@goodmis.org> - 2016-08-31 14:50 +0200
  Re: [PATCH v4 0/3] *** Latency histograms - IRQSOFF,PREEMPTOFF *** Daniel Wagner <daniel.wagner@bmw-carit.de> - 2016-08-30 13:50 +0200
    Re: [PATCH v4 0/3] *** Latency histograms - IRQSOFF,PREEMPTOFF *** Masami Hiramatsu <masami.hiramatsu@linaro.org> - 2016-08-30 14:10 +0200

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