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From: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
To: Martin Wilck <Martin.Wilck@fujitsu-siemens.com>,
	Ingo Molnar <mingo@elte.hu>,
	oliend@us.ibm.com
Cc: Linux Kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: Severe IRQ problems on Foster (P4 Xeon) system
Date: Thu, 14 Mar 2002 10:22:34 -0800	[thread overview]
Message-ID: <41140000.1016130154@flay> (raw)
In-Reply-To: <546494477.1016087693@[10.10.2.3]>
In-Reply-To: <Pine.LNX.4.33.0203141426200.1477-100000@biker.pdb.fsc.net> <546494477.1016087693@[10.10.2.3]>

>> Btw is it correct that one could also use the APIC Task Priority Registers
>> to implement "fair" IRQ routing? (If linux adjusted them, which it
>> currently doesn't).
> 
> Yes, and Dave Olien has already done this. It's a good idea for P3,
> and seems to me to be essential for P4. 
> 
> Dave, can you republish your patch?

Apparently he's out for a few days. I poked around, and here's the latest
version of his stuff I can find:

http://sourceforge.net/project/showfiles.php?group_id=8875

Look under "APIC routing". Read the notes carefully - you have to
activate it from the command line.


M.


  reply	other threads:[~2002-03-14 18:23 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-13 19:11 Severe IRQ problems on Foster (P4 Xeon) system Martin Wilck
2002-03-13 19:10 ` Ingo Molnar
2002-03-13 22:22   ` Bill Davidsen
2002-03-13 22:51     ` Alan Cox
2002-03-14  5:29       ` rddunlap
2002-03-14 14:26         ` Alan Cox
2002-03-15  7:55     ` Ingo Molnar
2002-03-14 13:29   ` Martin Wilck
2002-03-14 14:34     ` Martin J. Bligh
2002-03-14 18:22       ` Martin J. Bligh [this message]
2002-03-15  7:50         ` Ingo Molnar
2002-03-15  7:43     ` Ingo Molnar
2002-03-15 18:08       ` Martin J. Bligh
2002-03-19 13:38         ` Maciej W. Rozycki
2002-03-19 13:11   ` Maciej W. Rozycki
2002-03-27 17:35   ` Steffen Persvold
2002-03-19 14:32 ` Maciej W. Rozycki
2002-03-19 16:39   ` Martin Wilck
2002-03-19 23:28     ` Pavel Machek
2002-03-20  7:52       ` Martin Wilck
2002-03-20 13:27         ` Maciej W. Rozycki
2002-03-20 13:47           ` Martin Wilck
2002-03-20 14:13             ` Maciej W. Rozycki
2002-03-20 14:29           ` Alan Cox
2002-03-21 18:53           ` Martin Wilck
2002-03-20 13:52     ` Maciej W. Rozycki
2002-03-20 16:19       ` Martin Wilck
2002-03-21 13:03         ` Maciej W. Rozycki
2002-03-20 20:24   ` William Lee Irwin III
2002-03-21  6:54     ` Zwane Mwaikambo
2002-03-21 23:35       ` William Lee Irwin III
2002-03-22  0:18         ` Maciej W. Rozycki

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