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From: Jan Kiszka <jan.kiszka@siemens.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	RT <linux-rt-users@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: 2.6.24.2-rt2
Date: Tue, 26 Feb 2008 18:15:56 +0100	[thread overview]
Message-ID: <47C4494C.1090600@siemens.com> (raw)
In-Reply-To: <Pine.LNX.4.58.0802261155330.10116@gandalf.stny.rr.com>

Steven Rostedt wrote:
> 
> On Tue, 26 Feb 2008, Jan Kiszka wrote:
>>> What's the NUMA topology?
>> 4 nodes. I'm not sure if it is really NUMA related, but the same kernel
>> runs that test as expected on a non-NUMA 2x2 box.
>>
>>> What tasks are running, and at what priorities?
>> 40 pthreads, created with default parameters from a main thread which
>> runs with default parameters as well. The threads simply run endless loops.
>>
>>> Those three idle CPUS, should they have tasks running on them?
>> For sure, given the overload situation of the system (40x full load vs.
>> 16 cores). Neither did we fiddle with any parameter of the system
>> (knowingly, its a standard openSUSE 10.3 underneath) nor did we set
>> thread affinities.
>>
> 
> Do you get different behaviour with 2.6.24.2?

Last time I checked mainline (I think 2.6.24), it was fine. It was
definitely fine for 2.6.23. But I'm going to revalidate this once the
machine is free again (tomorrow).

Jan

-- 
Siemens AG, Corporate Technology, CT SE 2
Corporate Competence Center Embedded Linux

      reply	other threads:[~2008-02-26 17:16 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-22  0:24 2.6.24.2-rt2 Steven Rostedt
2008-02-26 10:29 ` 2.6.24.2-rt2 Jan Kiszka
2008-02-26 12:01   ` 2.6.24.2-rt2 Jan Kiszka
2008-02-26 15:15     ` 2.6.24.2-rt2 Steven Rostedt
2008-02-26 15:38       ` 2.6.24.2-rt2 Jan Kiszka
2008-02-26 16:55         ` 2.6.24.2-rt2 Steven Rostedt
2008-02-26 17:15           ` Jan Kiszka [this message]

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