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From: Frank Sorenson <frank@tuxrocks.com>
To: Tony Lindgren <tony@atomide.com>
Cc: linux-kernel@vger.kernel.org,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Pavel Machek <pavel@suse.cz>,
	Arjan van de Ven <arjan@infradead.org>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Andrea Arcangeli <andrea@suse.de>,
	George Anzinger <george@mvista.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	john stultz <johnstul@us.ibm.com>,
	Zwane Mwaikambo <zwane@arm.linux.org.uk>,
	Lee Revell <rlrevell@joe-job.com>,
	Thomas Renninger <trenn@suse.de>
Subject: Re: [PATCH] Dynamic Tick version 050406-1
Date: Thu, 07 Apr 2005 16:20:55 -0600	[thread overview]
Message-ID: <4255B247.4080906@tuxrocks.com> (raw)
In-Reply-To: <4255A7AF.8050802@tuxrocks.com>

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Frank Sorenson wrote:
> Tony Lindgren wrote:
> 
>>Thanks for trying it out. What kind of hardware do you have? Does it
>>have HPET? It looks like no suitable timer for dyn-tick is found...
>>Maybe the following patch helps?
>>
>>Tony
> 
> 
> Does 'different crash' qualify as "helping"?  :)

Update:
The patch does seem to fix the crash.  This "different crash" I
mentioned appears to be related to the netconsole I was using (serial
console produces stairstepping text, netconsole seems to duplicate
lines--go figure).  Without netconsole, dynamic tick appears to be
working, so I'm not sure whether this is a netconsole bug or a dynamic
tick bug.

While dynamic tick no longer panics, with dynamic tick, my system slows
to whatever is slower than a crawl.  It now takes 6 minutes 50 seconds
to boot all the way up, compared to 1 minute 35 seconds with my 2.6.12
kernel without the dynamic tick patch.  I'm not sure where this slowdown
is occurring yet.

Frank
- --
Frank Sorenson - KD7TZK
Systems Manager, Computer Science Department
Brigham Young University
frank@tuxrocks.com
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  reply	other threads:[~2005-04-07 22:22 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-06  8:30 [PATCH] Dynamic Tick version 050406-1 Tony Lindgren
2005-04-06 21:16 ` Frank Sorenson
2005-04-07  8:21   ` Tony Lindgren
2005-04-07  9:26     ` Alexander Nyberg
2005-04-08  6:22       ` Tony Lindgren
2005-04-07 21:35     ` Frank Sorenson
2005-04-07 22:20       ` Frank Sorenson [this message]
2005-04-08  6:25         ` Tony Lindgren
2005-04-08  7:50           ` [PATCH] Updated: Dynamic Tick version 050408-1 Tony Lindgren
2005-04-08  8:49             ` Frank Sorenson
2005-04-08  9:17               ` Tony Lindgren
2005-04-08 21:42                 ` Frank Sorenson
2005-04-09  8:09                   ` Tony Lindgren
2005-04-08 11:33               ` Thomas Renninger
2005-04-08 11:55                 ` Tony Lindgren
2005-04-08 12:58                   ` Thomas Renninger
2005-04-09  8:22                     ` Tony Lindgren
2005-04-19 14:56                   ` [PATCH] Updated: Dynamic Tick version 050408-1 - C-state measures Thomas Renninger
2005-04-19 15:27                     ` Dominik Brodowski
2005-04-19 21:03                       ` Thomas Renninger
2005-04-20 11:44                         ` Dominik Brodowski
2005-04-20 11:57                           ` Pavel Machek
2005-04-20 12:01                             ` Dominik Brodowski
2005-04-20 12:08                               ` Pavel Machek
2005-04-20 12:13                                 ` Dominik Brodowski
2005-04-20 12:24                           ` Thomas Renninger
2005-04-19 21:09                     ` Pavel Machek
2005-04-20 20:01                       ` Tony Lindgren
2005-04-21  7:54                         ` Thomas Renninger
2005-04-08 10:28             ` [PATCH] Updated: Dynamic Tick version 050408-1 Pavel Machek
2005-04-08 10:54               ` Tony Lindgren
2005-04-08 12:24                 ` Pavel Machek
2005-04-09  9:56                 ` Pavel Machek
2005-04-14 19:41                   ` Tony Lindgren

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