linux-kernel - Re: [RFC PATCH 3/3] thermal: trace: Trace when temperature is above a trip point

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Date:	Wed, 11 Jun 2014 10:20:06 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Punit Agrawal <punit.agrawal@....com>
Cc:	"linux-pm\@vger.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
	Javi Merino <Javi.Merino@....com>,
	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [RFC PATCH 3/3] thermal: trace: Trace when temperature is above
 a trip point

On Wed, 11 Jun 2014 15:11:02 +0100
Punit Agrawal <punit.agrawal@....com> wrote:
 
> I do indeed see the value of trip_type and it matches what's being
> traced.
> 
> ~# trace-cmd report | grep thermal_zone_trip | tail -n 5
>      kworker/2:2-1014  [002]   125.623213: thermal_zone_trip:    thermal_zone=soc_thermal id=0 trip=0 trip_type=
>      kworker/2:2-1014  [002]   125.743174: thermal_zone_trip:    thermal_zone=soc_thermal id=0 trip=0 trip_type=
>      kworker/2:2-1014  [002]   125.863196: thermal_zone_trip:    thermal_zone=soc_thermal id=0 trip=0 trip_type=
>      kworker/2:2-1014  [002]   125.983175: thermal_zone_trip:    thermal_zone=soc_thermal id=0 trip=0 trip_type=
>      kworker/2:2-1014  [002]   126.103173: thermal_zone_trip:    thermal_zone=soc_thermal id=0 trip=0 trip_type=
> ~# trace-cmd report -R | grep thermal_zone_trip | tail -n 5
>      kworker/2:2-1014  [002]   125.623213: thermal_zone_trip:     thermal_zone=soc_thermal id=0 trip=0 trip_type=1
>      kworker/2:2-1014  [002]   125.743174: thermal_zone_trip:     thermal_zone=soc_thermal id=0 trip=0 trip_type=1
>      kworker/2:2-1014  [002]   125.863196: thermal_zone_trip:     thermal_zone=soc_thermal id=0 trip=0 trip_type=1
>      kworker/2:2-1014  [002]   125.983175: thermal_zone_trip:     thermal_zone=soc_thermal id=0 trip=0 trip_type=1
>      kworker/2:2-1014  [002]   126.103173: thermal_zone_trip:     thermal_zone=soc_thermal id=0 trip=0 trip_type=1
> 
> Is there something I should be doing to enable the translation to the
> string representation when reporting using trace-cmd?

Out of curiosity, what does the format file for it look like?

/sys/kernel/debug/thermal/thermal_zone_trip/format

-- Steve
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