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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/