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From: Ethan Weinstein <lists@stinkfoot.org>
To: Ed Tomlinson <edt@aei.ca>
Cc: linux-kernel@vger.kernel.org, piggin@cyberone.com.au
Subject: Re: 2.6.1 and irq balancing
Date: Sun, 11 Jan 2004 00:19:12 -0500	[thread overview]
Message-ID: <4000DCD0.6080904@stinkfoot.org> (raw)
In-Reply-To: <200401102139.09883.edt@aei.ca>

Ed Tomlinson wrote:
> Hi,
> 
> What is the load on the box when this is happening?  If its low think
> this is optimal (for cache reasons).
> 

Admittedly, the machine's load was not high when I took this sample. 
However, creating a great deal of load does not change these statistics 
at all.  Being that there are patches available for 2.4.x kernels to fix 
this, I don't think this at all by design, but what do I know? =)

2.6.0 running on a non-HT SMP machine I have (old Compaq proliant 
2xPentium2) does interrupt on all CPU's with "noirqbalance" bootparam.

Regarding the keyboard, I noticed something interesting

2.6.1-rc1 shows the i8042 in /proc/interrupts:

   1:       1871          0          0          0    IO-APIC-edge  i8042

(keyboard still does not work, though..)

2.6.1 final does not show this at all, and [kseriod] eats a constant 5% 
  CPU.  Something's awry =)


-Ethan

  parent reply	other threads:[~2004-01-11  5:19 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-10 23:14 2.6.1 and irq balancing Ethan Weinstein
2004-01-11  2:39 ` Ed Tomlinson
2004-01-11  3:38   ` Nick Piggin
2004-01-11  9:52     ` Arjan van de Ven
2004-01-11  5:19   ` Ethan Weinstein [this message]
2004-01-11  9:51 ` Arjan van de Ven
2004-01-11 16:50   ` Joe Korty
2004-01-11 18:19     ` Arjan van de Ven
2004-01-15 11:43     ` Pavel Machek
2004-01-11 13:14 ` Martin Schlemmer
2004-01-11 23:59 Nakajima, Jun
2004-01-12  4:42 ` Bill Davidsen
2004-01-12 14:06   ` Zwane Mwaikambo
2004-01-12 16:10   ` Martin J. Bligh
2004-01-13  6:50 ` Ethan Weinstein
2004-01-13  7:05   ` Nick Piggin
2004-01-13  7:57 Nakajima, Jun
2004-01-13  8:09 Nakajima, Jun

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