Messages in this thread | | | Date | Wed, 31 Aug 2016 08:42:46 -0400 | From | Steven Rostedt <> | 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
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