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Subject: Re: [RFC][PATCH 12/22] sched: add runtime reporting for -deadline
 tasks
From: Peter Zijlstra <peterz@infradead.org>
To: Raistlin <raistlin@linux.it>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
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Date: Fri, 12 Nov 2010 17:27:31 +0100
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On Fri, 2010-11-12 at 17:15 +0100, Raistlin wrote:
> > but reading this patch makes me
> > wonder why tsk->se.sum_exec_runtime isn't good enough?
> >
> Might be, but what you usually want is something reporting you total
> runtime from when you became a -deadline task, which may not be the case
> of sum_exec_runtime, is it? 

Correct, it wouldn't be. However since I expect a user to be mostly
interested in deltas between two readings, in which case it really
doesn't matter, does it?