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From: Len Brown <lenb@kernel.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>,
	linux-pm@lists.linux-foundation.org, stable@kernel.org,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Arjan van de Ven <arjan@infradead.org>
Subject: Re: [PATCH] x86 intel power: Initialize MSR_IA32_ENERGY_PERF_BIAS
Date: Wed, 13 Jul 2011 16:51:01 -0400 (EDT)	[thread overview]
Message-ID: <alpine.LFD.2.02.1107131647140.9546__38904.9012250782$1310590465$gmane$org@x980> (raw)
In-Reply-To: <20110420131442.GA29418@atrey.karlin.mff.cuni.cz>

> Ok. So... what "serious bug" does this fix? You really need to use cc:
> stable less. Tweaking performance/power ratio is _not_ serious bug.

While the performance difference may not be significant,
the energy difference may be.

Some people think it is serious when Linux has worse out-of-box
energy efficiency than Windows on the same hardware.

Some people think that it is serious when their Linux distribution
has worse energy efficiency than competing Linux distributions.

Greg has given me a hard time for not cc'ing stable _enough_.
I guess the folks that answer the stable mail get to decide...

cheers,
-Len

  reply	other threads:[~2011-07-13 20:51 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-30 22:21 [PATCH] x86 intel power: Initialize MSR_IA32_ENERGY_PERF_BIAS Len Brown
2011-04-14  9:08 ` Ingo Molnar
2011-04-15  6:25   ` Len Brown
2011-04-15 10:17     ` Ingo Molnar
2011-07-13 20:44       ` Len Brown
2011-07-13 20:44         ` Len Brown
2011-07-13 20:49         ` Linus Torvalds
2011-07-13 20:49           ` Linus Torvalds
2011-07-13 21:38           ` H. Peter Anvin
2011-07-13 21:38           ` H. Peter Anvin
2011-07-14  4:53             ` [PATCH v2] " Len Brown
2011-07-14 19:35               ` Rafael J. Wysocki
2011-07-14 19:35               ` Rafael J. Wysocki
2011-07-14 21:12               ` [tip:x86/cpu] x86, intel, " tip-bot for Len Brown
2011-07-15  0:18                 ` [tip:x86/cpu] x86, msr: Fix typo in ENERGY_PERF_BIAS_POWERSAVE tip-bot for H. Peter Anvin
2011-07-15 21:37               ` [PATCH v3] x86 intel power: Initialize MSR_IA32_ENERGY_PERF_BIAS Len Brown
2011-07-15 21:37               ` Len Brown
2011-07-16 18:52                 ` [tip:x86/cpu] x86, intel, power: Correct the MSR_IA32_ENERGY_PERF_BIAS message tip-bot for Len Brown
2011-08-18 17:23                   ` Christoph Fritz
2011-07-14  4:53             ` [PATCH v2] x86 intel power: Initialize MSR_IA32_ENERGY_PERF_BIAS Len Brown
2011-04-15 10:17     ` [PATCH] " Ingo Molnar
2011-04-20 13:14     ` Pavel Machek
2011-07-13 20:51       ` Len Brown [this message]
2011-07-13 20:51       ` Len Brown
2011-04-20 13:14     ` Pavel Machek
2011-04-15  6:25   ` Len Brown
2011-04-14  9:08 ` Ingo Molnar
  -- strict thread matches above, loose matches on Subject: below --
2011-03-30 22:21 Len Brown

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