linux-kernel - Re: [PATCH 09/15] x86, amd: add accessor for number of cores per compute unit

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Message-ID: <20150830155322.GA26370@nazgul.tnic>
Date:	Sun, 30 Aug 2015 17:53:22 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Huang Rui <ray.huang@....com>, Borislav Petkov <bp@...e.de>,
	Jean Delvare <jdelvare@...e.de>,
	Guenter Roeck <linux@...ck-us.net>,
	Andy Lutomirski <luto@...capital.net>,
	Andreas Herrmann <herrmann.der.user@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>,
	John Stultz <john.stultz@...aro.org>,
	Frédéric Weisbecker <fweisbec@...il.com>,
	lm-sensors@...sensors.org, linux-kernel@...r.kernel.org,
	x86@...nel.org,
	Andreas Herrmann <herrmann.der.user@...glemail.com>,
	Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Aaron Lu <aaron.lu@...el.com>, Tony Li <tony.li@....com>
Subject: Re: [PATCH 09/15] x86, amd: add accessor for number of cores per
 compute unit

On Sat, Aug 29, 2015 at 11:19:14AM +0200, Ingo Molnar wrote:
> So let me withdraw my ack: the much more important question that I
> missed first time around, why is this reporting feature living in
> hwmon, not in perf? We have energy reporting facilities in perf that
> this should be synced to.

Because there's already fam15h_power driver which is exactly for that.
Making it part of perf is then a question of cat-ting the same sysfs
file twice, at the beginning and at the end of the trace, which is
trivial.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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