From: Dominik Brodowski <linux@dominikbrodowski.net>
To: john stultz <johnstul@us.ibm.com>
Cc: "Ananiev, Leonid I" <leonid.i.ananiev@intel.com>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [patch 1/] timers: tsc using for cpu scheduling
Date: Thu, 30 Jun 2005 22:50:17 +0200 [thread overview]
Message-ID: <20050630205017.GB5437@isilmar.linta.de> (raw)
In-Reply-To: <1120158468.24889.150.camel@cog.beaverton.ibm.com>
On Thu, Jun 30, 2005 at 12:07:48PM -0700, john stultz wrote:
> Well, not quite. First of all, I believe (Dominik would know better)
> that not all CPUs that support frequency scaling actually modify their
> TSC frequency. So in some cases the TSC is time and in others it is
> work.
Indeed. For example, P4s capable of Enhanced SpeedStep do not modify the TSC
tick rate.
Dominik
next prev parent reply other threads:[~2005-06-30 20:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-30 11:43 Ananiev, Leonid I
2005-06-30 19:07 ` john stultz
2005-06-30 20:50 ` Dominik Brodowski [this message]
2005-07-05 17:08 Ananiev, Leonid I
2005-07-06 1:42 ` john stultz
2005-07-24 4:51 Ananiev, Leonid I
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