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Re: IRQ affinities
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From:
Max Krasnyanskiy <maxk@...>
To: Arjan van de Ven <arjan@...>
Cc: Paul Jackson <pj@...>, Peter Zijlstra <a.p.zijlstra@...>, <menage@...>, <mingo@...>, <linux-kernel@...>
Subject:
Re: IRQ affinities
Date: Wednesday, May 21, 2008 - 12:18 pm
Arjan van de Ven wrote:
quoted text
> On Tue, 20 May 2008 18:14:58 -0700 > Max Krasnyanskiy <maxk@qualcomm.co > >> For the IRQs specifically all I need is to be able to tell the kernel >> to not route IRQs to certain CPUs. That's mostly works already via >> /proc/irq/N/smp_affinity, the problem is dynamically allocated irqs >> because /proc/irq/N directory does not exist until those IRQs are >> allocated/enabled. > \ > > why don't you tell irqbalance instead? it'll make sure the irq stays > out of the wind... >
That will be too late. By the time irqbalance sees that IRQ it may have already fired (possibly several times) on the "wrong" processor. Max --
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Messages in current thread:
boot cgroup questions
, Max Krasnyansky
, (Tue Mar 11, 9:23 pm)
Re: boot cgroup questions
, Paul Menage
, (Tue Mar 11, 9:27 pm)
Re: boot cgroup questions
, Max Krasnyansky
, (Tue Mar 11, 10:34 pm)
Re: boot cgroup questions
, Paul Menage
, (Tue Mar 11, 10:36 pm)
Re: boot cgroup questions
, Max Krasnyansky
, (Tue Mar 11, 10:53 pm)
Re: boot cgroup questions
, Paul Menage
, (Tue Mar 11, 11:09 pm)
Re: boot cgroup questions
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, (Wed Mar 12, 12:59 am)
Re: boot cgroup questions
, Paul Menage
, (Wed Mar 12, 3:16 pm)
Re: boot cgroup questions
, Paul Jackson
, (Wed Mar 12, 3:24 pm)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Wed Mar 12, 3:30 pm)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Wed Mar 12, 2:24 pm)
Re: boot cgroup questions
, Paul Jackson
, (Wed Mar 12, 2:57 pm)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Wed Mar 12, 3:11 pm)
Re: boot cgroup questions
, Paul Jackson
, (Wed Mar 12, 3:32 pm)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Wed Mar 12, 4:08 pm)
Re: boot cgroup questions
, Paul Jackson
, (Wed Mar 12, 4:37 pm)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Wed Mar 12, 6:29 pm)
Re: boot cgroup questions
, Paul Jackson
, (Wed Mar 12, 7:32 pm)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Wed Mar 12, 8:46 pm)
Re: boot cgroup questions
, Paul Jackson
, (Wed Mar 12, 7:30 pm)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Wed Mar 12, 8:57 pm)
Re: boot cgroup questions
, Paul Jackson
, (Thu Mar 13, 3:12 am)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Thu Apr 10, 1:24 pm)
Re: boot cgroup questions
, Paul Jackson
, (Thu Apr 10, 1:37 pm)
Re: boot cgroup questions
, Paul Jackson
, (Thu Mar 13, 3:03 am)
Re: boot cgroup questions
, Max Krasnyanskiy
, (Thu Apr 10, 2:03 pm)
Re: boot cgroup questions
, Paul Jackson
, (Mon Apr 14, 2:42 pm)
Re: boot cgroup questions
, Paul Jackson
, (Mon Apr 14, 2:39 pm)
Re: boot cgroup questions
, Peter Zijlstra
, (Fri May 9, 6:45 am)
IRQ affinities (was: boot cgroup questions)
, Paul Jackson
, (Fri May 9, 7:17 am)
Re: IRQ affinities
, Max Krasnyanskiy
, (Tue May 20, 9:14 pm)
Re: IRQ affinities
, Paul Jackson
, (Wed May 21, 2:34 am)
Re: IRQ affinities
, Max Krasnyanskiy
, (Wed May 21, 1:58 pm)
Re: IRQ affinities
, Arjan van de Ven
, (Wed May 21, 12:45 am)
Re: IRQ affinities
, Max Krasnyanskiy
, (Wed May 21, 12:18 pm)
Re: IRQ affinities (was: boot cgroup questions)
, Peter Zijlstra
, (Fri May 9, 7:48 am)
Re: IRQ affinities (was: boot cgroup questions)
, Paul Jackson
, (Fri May 9, 8:03 am)
Re: IRQ affinities (was: boot cgroup questions)
, Peter Zijlstra
, (Fri May 9, 8:14 am)
Re: IRQ affinities (was: boot cgroup questions)
, Paul Jackson
, (Fri May 9, 8:36 am)
Re: IRQ affinities
, Max Krasnyanskiy
, (Tue May 20, 9:21 pm)
Re: IRQ affinities (was: boot cgroup questions)
, Paul Jackson
, (Fri May 9, 1:43 pm)
Re: boot cgroup questions
, Max Krasnyansky
, (Tue Mar 11, 11:39 pm)
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