From: Peter Zijlstra <peterz@infradead.org>
To: Rob <roblinux@gmail.com>
Cc: linux-kernel@vger.kernel.org, "Brown, Len" <lenb@kernel.org>,
tglx <tglx@linutronix.de>
Subject: Re: TSC as clocksource
Date: Mon, 10 Jan 2011 14:44:52 +0100 [thread overview]
Message-ID: <1294667092.11896.0.camel@laptop> (raw)
In-Reply-To: <AANLkTikBu6vggpTUQy_MeTG_PJ9WWoHVyDL0OLPa6v=_@mail.gmail.com>
On Mon, 2011-01-10 at 09:54 +1100, Rob wrote:
> Want to use TSC as clocksource
> have a Intel Core2 Duo with constant_tsc flag
> TSC should be stable at C1 + C2, it is debatable whether C3 is stable
>
> Using processor.max_cstate=2 to use only C1 + C2 changes nothing, still get
> Monitor-Mwait will be used to enter C-3 state
> there should be checks before this is forced
>
> Please CC answers, comments to my email.
Len, Thomas?
next prev parent reply other threads:[~2011-01-10 13:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-09 22:54 TSC as clocksource Rob
2011-01-10 13:44 ` Peter Zijlstra [this message]
2011-01-10 13:54 ` Thomas Gleixner
2011-01-10 17:43 ` Len Brown
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