linux-kernel - Re: [Resend][PATCH] PM / tick: Add tracepoints for suspend-to-idle diagnostics

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Message-ID: <alpine.DEB.2.11.1505142342530.4225@nanos>
Date:	Thu, 14 May 2015 23:43:11 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
cc:	Peter Zijlstra <peterz@...radead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: [Resend][PATCH] PM / tick: Add tracepoints for suspend-to-idle
 diagnostics

On Fri, 15 May 2015, Rafael J. Wysocki wrote:

> On Sunday, May 10, 2015 01:23:35 AM Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> > 
> > Add suspend/resume tracepoints to tick_freeze() and tick_unfreeze()
> > to catch when timekeeping is suspended and resumed during suspend-to-idle
> > so as to be able to check whether or not we enter the "frozen" state
> > and to measure the time spent in it.
> > 
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Thomas, Peter, any objections here?

No.

Acked-by: Thomas Gleixner <tglx@...utronix.de>
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