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Date: Wed, 31 Aug 2016 08:42:46 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Binoy Jayan <binoy.jayan@linaro.org>
Cc: Ingo Molnar <mingo@redhat.com>,
        Daniel Wagner <daniel.wagner@bmw-carit.de>,
        Arnd Bergmann <arnd@arndb.de>,
        Linux kernel mailing list <linux-kernel@vger.kernel.org>,
        Masami <masami.hiramatsu@linaro.org>
Subject: Re: [PATCH v4 3/3] tracing: Histogram for missed timer offsets
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On Wed, 31 Aug 2016 17:04:54 +0530
Binoy Jayan <binoy.jayan@linaro.org> wrote:

> On 30 August 2016 at 19:45, Steven Rostedt <rostedt@goodmis.org> wrote:
> > On Tue, 30 Aug 2016 15:58:44 +0530
> > Binoy Jayan <binoy.jayan@linaro.org> wrote:
> >  
> >> +
> >> +     TP_STRUCT__entry(
> >> +             __field(long long,      toffset)
> >> +             __array(char,           ccomm,  TASK_COMM_LEN)  
> >
> > Can curr be different than current? If not, lets not record it.
> >
> > -- Steve
> >  
> 
> Hi Steve,
> 
> If my understanding is right, I think both are not the same. The
> predefined field relates to the current
> process which was interrupted by the hrtimer. This I guess does not
> have a meaning in this context.
> Mostly it is the idle process which is interrupted by the hrtimer. But
> the ccomm field refers to the task
> woken up by the process. The latencies are measured for this task. So
> I it is needed.
> 

Then what is tcomm?

-- Steve