From: Thomas Gleixner <tglx@linutronix.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
lkml <linux-kernel@vger.kernel.org>,
john stultz <johnstul@us.ibm.com>
Subject: Re: [PATCH] x86: fix cpufreq tsc scaling
Date: Wed, 27 May 2009 00:52:32 +0200 (CEST) [thread overview]
Message-ID: <alpine.LFD.2.00.0905270050460.1762@localhost.localdomain> (raw)
In-Reply-To: <1243378105.6600.28.camel@laptop>
On Wed, 27 May 2009, Peter Zijlstra wrote:
> Subject: x86: fix cpufreq tsc scaling
> From: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Date: Wed May 27 00:32:23 CEST 2009
>
> For freqency dependent TSCs we only scale the cycles, we do not account
> for the discrepancy in absolute value. Add a constant factor so that:
>
> c1 + f1*cyc == c2 + f2*cyc
>
> LKML-Reference: <new-submission>
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Chucked-on-by: Thomas Gleixner <tglx@linutronix.de>
Hey, you misspelled this. I said "Chuckled-on-by"
tglx
next prev parent reply other threads:[~2009-05-26 22:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-26 22:48 Peter Zijlstra
2009-05-26 22:52 ` Thomas Gleixner [this message]
2009-05-27 7:00 ` Peter Zijlstra
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