From: Tony Lindgren <tony@atomide.com>
To: Pavel Machek <pavel@suse.cz>
Cc: George Anzinger <george@mvista.com>,
john stultz <johnstul@us.ibm.com>,
Andrea Arcangeli <andrea@suse.de>,
Zwane Mwaikambo <zwane@arm.linux.org.uk>,
Con Kolivas <kernel@kolivas.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] dynamic tick patch
Date: Wed, 19 Jan 2005 09:13:23 -0800 [thread overview]
Message-ID: <20050119171323.GB14545@atomide.com> (raw)
In-Reply-To: <20050119094342.GB25623@elf.ucw.cz>
* Pavel Machek <pavel@suse.cz> [050119 01:44]:
>
> >
> > Please note that this patch alone does not help much with
> > power savings. More work is needed in that area to make the
> > system take advantage of the idle time inbetween the skipped
> > ticks.
>
> Well, having HZ=100 instead of HZ=1000 has measurable benefits on
> power consumption. This should be at least as good, no?
HZ=100 does not allow improving the idle loop much further
from what we have. We should be able to take advantage of the
longer idle/sleep periods inbetween the skipped ticks.
Tony
next prev parent reply other threads:[~2005-01-19 17:15 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-19 0:05 [PATCH] dynamic tick patch Tony Lindgren
2005-01-19 0:22 ` Lee Revell
2005-01-19 1:04 ` Tony Lindgren
2005-01-19 4:21 ` Benjamin Herrenschmidt
2005-01-19 5:07 ` Tony Lindgren
2005-01-19 5:21 ` Tony Lindgren
2005-01-19 5:44 ` Benjamin Herrenschmidt
2005-01-19 6:26 ` Tony Lindgren
2005-01-19 9:45 ` Pavel Machek
2005-01-19 5:28 ` Benjamin Herrenschmidt
2005-01-19 6:37 ` Tony Lindgren
2005-01-19 7:08 ` Benjamin Herrenschmidt
2005-01-19 7:31 ` Tony Lindgren
2005-01-19 14:11 ` Stephen Frost
2005-01-19 17:17 ` Tony Lindgren
[not found] ` <OFDC470564.D4624EB3-ON41256F8E.00512848-41256F8E.005428CC@de.ibm.com>
2005-01-19 17:37 ` Tony Lindgren
2005-01-19 9:43 ` Pavel Machek
2005-01-19 17:13 ` Tony Lindgren [this message]
2005-01-19 17:48 ` Andrea Arcangeli
2005-01-19 18:19 ` Tony Lindgren
2005-01-19 19:12 ` Andrea Arcangeli
2005-01-19 19:17 ` Tony Lindgren
2005-01-19 19:34 ` Tony Lindgren
2005-01-19 22:42 ` Andrea Arcangeli
2005-01-19 22:59 ` George Anzinger
2005-01-19 23:17 ` Tony Lindgren
2005-01-20 0:24 ` George Anzinger
2005-01-20 8:04 ` Tony Lindgren
2005-01-20 23:10 ` George Anzinger
2005-01-21 17:35 ` Tony Lindgren
2005-01-21 20:23 ` George Anzinger
2005-01-19 23:26 ` Thomas Gleixner
2005-01-19 23:45 ` john stultz
2005-01-20 5:56 ` Thomas Gleixner
2005-01-20 0:39 ` George Anzinger
2005-01-20 3:15 ` Valdis.Kletnieks
2005-01-19 11:36 ` Pavel Machek
2005-01-19 17:11 ` Tony Lindgren
2005-01-19 17:30 ` Arjan van de Ven
2005-01-19 17:41 ` Tony Lindgren
2005-01-19 22:06 ` Pavel Machek
2005-01-19 23:08 ` Tony Lindgren
2005-01-19 23:46 ` Pavel Machek
2005-01-19 23:53 ` Tony Lindgren
2005-01-19 23:59 ` Pavel Machek
2005-01-20 0:07 ` Tony Lindgren
2005-01-20 0:44 ` Pavel Machek
2005-01-20 0:54 ` Pavel Machek
2005-01-20 7:39 ` Tony Lindgren
2005-01-19 22:20 ` Pavel Machek
2005-01-20 4:02 ` Zwane Mwaikambo
2005-01-21 17:48 ` Tony Lindgren
2005-01-21 18:27 ` Zwane Mwaikambo
2005-01-21 18:38 ` Tony Lindgren
2005-01-21 18:54 ` Pavel Machek
2005-01-21 21:23 ` Zwane Mwaikambo
2005-01-21 21:29 ` Pavel Machek
2005-01-21 20:25 ` George Anzinger
2005-01-21 21:38 ` Zwane Mwaikambo
2005-01-22 7:24 ` George Anzinger
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