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From: Srivatsa Vaddagiri <vatsa@in.ibm.com>
To: George Anzinger <george@mvista.com>
Cc: Con Kolivas <kernel@kolivas.org>, Adrian Bunk <bunk@stusta.de>,
	linux-kernel@vger.kernel.org, ck@vds.kolivas.org,
	tony@atomide.com, tuukka.tikkanen@elektrobit.com,
	Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 5
Date: Wed, 10 Aug 2005 19:35:28 +0530	[thread overview]
Message-ID: <20050810140528.GA20893@in.ibm.com> (raw)
In-Reply-To: <42F905DA.4070308@mvista.com>

On Tue, Aug 09, 2005 at 12:36:58PM -0700, George Anzinger wrote:
> IMNOHO, this is the ONLY way to keep proper time.  As soon as you 
> reprogram the PIT you have lost track of the time.

George,
	Can't TSC (or equivalent) serve as a backup while PIT is disabled,
especially considering that we disable PIT only for short duration 
in practice (few seconds maybe) _and_ that we don't have HRT support yet?

-- 


Thanks and Regards,
Srivatsa Vaddagiri,
Linux Technology Center,
IBM Software Labs,
Bangalore, INDIA - 560017

  reply	other threads:[~2005-08-10 14:04 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-03  5:59 [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 3 Con Kolivas
2005-08-03 11:54 ` Jan De Luyck
2005-08-03 12:14   ` Con Kolivas
2005-08-03 14:23     ` Jan De Luyck
2005-08-04 15:03       ` Vojtech Pavlik
2005-08-05  5:12         ` Con Kolivas
2005-08-03 19:20 ` Jim MacBaine
2005-08-03 21:16   ` Con Kolivas
2005-08-03 22:22     ` Jim MacBaine
2005-08-03 22:52       ` Con Kolivas
2005-08-04  5:34         ` Jim MacBaine
2005-08-04  6:59           ` Jim MacBaine
2005-08-04  7:04             ` Con Kolivas
2005-08-04  7:12               ` Con Kolivas
2005-08-04  7:29                 ` Tony Lindgren
2005-08-10 20:04             ` Bill Davidsen
2005-08-14 19:47         ` Pavel Machek
2005-08-15  1:43           ` Zwane Mwaikambo
2005-08-15 12:52             ` Con Kolivas
2005-08-15 15:39               ` Zwane Mwaikambo
2005-08-03 19:54 ` Jeffrey Hundstad
2005-08-03 20:07   ` Valdis.Kletnieks
2005-08-03 21:13   ` Con Kolivas
2005-08-03 23:22 ` Christian Leber
2005-08-04 16:25   ` Marc Ballarin
2005-08-04  5:09 ` Jan De Luyck
2005-08-04  5:07   ` Con Kolivas
2005-08-04  5:34     ` Jan De Luyck
2005-08-04 21:15 ` [PATCH] Timer Top was: " Daniel Petrini
2005-08-05  4:05   ` [PATCH] Timer Top tweaks Con Kolivas
2005-08-05  6:46   ` [ck] [PATCH] Timer Top was: i386 No-Idle-Hz aka Dynamic-Ticks 3 Jens Axboe
2005-08-05 12:39     ` Daniel Petrini
2005-08-05 13:55       ` Daniel Petrini
2005-08-04 21:44 ` [PATCH] " Adrian Bunk
2005-08-04 22:12 ` Marc Ballarin
2005-08-05  0:31   ` Con Kolivas
2005-08-05  1:30 ` Paul
2005-08-05  3:25   ` Con Kolivas
2005-08-05 12:37 ` Srivatsa Vaddagiri
2005-08-05 13:08   ` Con Kolivas
2005-08-05 16:39     ` [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 4 Con Kolivas
2005-08-06 17:47       ` Adrian Bunk
2005-08-07  5:12         ` [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 5 Con Kolivas
2005-08-07 16:58           ` Srivatsa Vaddagiri
2005-08-07 23:51             ` Con Kolivas
2005-08-08  1:20               ` Kyle Moffett
2005-08-08  1:30                 ` Con Kolivas
2005-08-08  1:45                   ` [ck] " Gabriel Devenyi
2005-08-08  2:44                   ` Srivatsa Vaddagiri
2005-08-08  7:05                     ` Nigel Cunningham
2005-08-08  7:38             ` Tony Lindgren
2005-08-08 15:06               ` Srivatsa Vaddagiri
2005-08-09 19:36             ` George Anzinger
2005-08-10 14:05               ` Srivatsa Vaddagiri [this message]
2005-08-10 22:37                 ` George Anzinger
2005-08-11 21:33                   ` Bill Davidsen
2005-08-12 15:13                     ` George Anzinger
2005-08-08 15:08           ` Folkert van Heusden
2005-08-08 15:16             ` Daniel Petrini
2005-08-08  7:26   ` [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 3 Tony Lindgren
2005-08-08 14:54     ` Srivatsa Vaddagiri
2005-08-08 15:20       ` Tony Lindgren
2005-08-09 14:22         ` Zwane Mwaikambo
2005-08-10  7:46           ` Tony Lindgren
2005-08-09 20:05     ` George Anzinger
2005-08-09 20:22       ` Daniel Petrini
2005-08-10  8:02       ` Tony Lindgren
2005-08-10 22:40         ` George Anzinger

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