From: Ingo Molnar <mingo@elte.hu>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
cpufreq@vger.kernel.org, davej <davej@codemonkey.org.uk>,
Alok Kataria <akataria@vmware.com>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [BUG] cpufreq: constant cpu_khz
Date: Mon, 25 Aug 2008 14:39:26 +0200 [thread overview]
Message-ID: <20080825123926.GC8663@elte.hu> (raw)
In-Reply-To: <1219664106.8515.50.camel@twins>
* Peter Zijlstra <peterz@infradead.org> wrote:
> > I noticed that my sched_clock() was slow on a number of machine, so
> > I started looking at cpufreq.
>
> The below seems to fix the problem for me, but I don't have enough
> clue to know if its the correct fix, please advise.
> - set_cyc2ns_scale(tsc_khz_ref, freq->cpu);
> + set_cyc2ns_scale(tsc_khz, freq->cpu);
hm, that too is due to the tsc.c unification - Alok Cc:-ed. Applied your
fix to x86/urgent.
Ingo
next prev parent reply other threads:[~2008-08-25 12:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-25 6:33 [BUG] cpufreq: constant cpu_khz Peter Zijlstra
2008-08-25 11:35 ` Peter Zijlstra
2008-08-25 12:39 ` Ingo Molnar [this message]
2008-08-25 17:34 ` Alok Kataria
2008-08-25 17:55 ` Dave Jones
2008-08-25 17:57 ` Ingo Molnar
2008-08-25 18:22 ` Arjan van de Ven
2008-08-25 19:27 ` Peter Zijlstra
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