From: Tony Lindgren <tony@atomide.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: hugang@soulinfo.com, Tony Lindgren <tony@atomide.com>,
linux-kernel@vger.kernel.org, "Pallipadi,
Venkatesh" <venkatesh.pallipadi@intel.com>,
Jonathan Corbet <corbet@lwn.net>, Pavel Machek <pavel@ucw.cz>,
Bernard Blackham <b-lkml@blackham.com.au>,
Christian Hesse <mail@earthworm.de>,
Zwane Mwaikambo <zwane@arm.linux.org.uk>
Subject: Re: [PATCH] Dynamic tick for x86 version 050610-1
Date: Mon, 20 Jun 2005 18:28:25 -0700 [thread overview]
Message-ID: <20050621012825.GA30990@muru.com> (raw)
In-Reply-To: <1119076233.18247.27.camel@gaston>
On Sat, Jun 18, 2005 at 04:30:32PM +1000, Benjamin Herrenschmidt wrote:
>
> > I'm try to port it powerpc, Here is a patch.
> >
> > Port Dynamic Tick Timer to new platform is easy. :)
> > 1) Find the reprogram timer interface.
> > 2) do a hook in the idle function.
> >
> > That worked on my PowerBookG4 12'.
Cool :)
> Did you get a measurable gain on power consumption ?
>
> Last time I toyed with this, I didn't.
Just dyntick alone probably does not do much for power savings. The
trick is to figure out what all can be turned off for the longer idle
periods. And try to make the idle periods longer by cutting down on
polling.
Tony
next prev parent reply other threads:[~2005-06-21 1:33 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-02 1:36 [PATCH] Dynamic tick for x86 version 050602-1 Tony Lindgren
2005-06-02 1:54 ` Zwane Mwaikambo
2005-06-02 2:09 ` Tony Lindgren
2005-06-02 8:30 ` Christian Hesse
2005-06-02 17:42 ` [PATCH] Dynamic tick for x86 version 050602-2 Tony Lindgren
2005-06-02 20:03 ` Christian Hesse
2005-06-02 20:32 ` Tony Lindgren
2005-06-03 6:08 ` Christian Hesse
2005-06-03 17:39 ` Tony Lindgren
2005-06-04 12:51 ` Christian Hesse
2005-06-10 4:03 ` Tony Lindgren
2005-06-05 4:06 ` Bernard Blackham
2005-06-10 4:05 ` Tony Lindgren
2005-06-03 22:37 ` Pavel Machek
2005-06-03 22:47 ` Pavel Machek
2005-06-10 4:17 ` Tony Lindgren
2005-06-10 9:15 ` Pavel Machek
2005-06-10 15:17 ` Tony Lindgren
2005-06-10 22:15 ` [PATCH] Dynamic tick for x86 version 050610-1 Tony Lindgren
2005-06-18 3:34 ` hugang
2005-06-18 6:30 ` Benjamin Herrenschmidt
2005-06-21 1:28 ` Tony Lindgren [this message]
2005-06-21 1:49 ` Benjamin Herrenschmidt
2005-06-21 2:21 ` Tony Lindgren
2005-07-19 6:51 ` hugang
2005-07-19 13:51 ` Benjamin Herrenschmidt
2005-07-25 10:11 ` Tony Lindgren
2005-06-11 17:59 ` [PATCH] Dynamic tick for x86 version 050602-2 Kyle Moffett
2005-06-07 20:36 ` [PATCH] Dynamic tick for x86 version 050602-1 Jonathan Corbet
2005-06-10 4:18 ` Tony Lindgren
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