linux-kernel - Re: [PATCH v6 4/5] devfreq_cooling: add trace information

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Message-ID: <20150918100428.0d2f71f5@gandalf.local.home>
Date:	Fri, 18 Sep 2015 10:04:28 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Javi Merino <javi.merino@....com>
Cc:	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"cw00.choi@...sung.com" <cw00.choi@...sung.com>,
	"edubezval@...il.com" <edubezval@...il.com>,
	Zhang Rui <rui.zhang@...el.com>, Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v6 4/5] devfreq_cooling: add trace information

On Fri, 18 Sep 2015 14:55:51 +0100
Javi Merino <javi.merino@....com> wrote:


> > A tracepoint does some whacky things, and gcc may not optimize this.
> 
> I've compared the generated assembly on arm, arm64 and x86_64 and both
> options generate exactly the same code.

Thanks for checking. I was just curious, and I'm wary about trusting
gcc to optimize correctly ;-)


-- Steve
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