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From: Dieter =?iso-8859-15?q?N=FCtzel?= <Dieter.Nuetzel@hamburg.de>
Organization: DN
To: "J.A. Magallon" <jamagallon@able.es>
Subject: Re: 0(1)-patch, where did it go?
Date: Thu, 11 Apr 2002 05:27:35 +0200
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Cc: Linux Kernel List <linux-kernel@vger.kernel.org>,
        "Martin J. Bligh" <Martin.Bligh@us.ibm.com>,
        Ingo Molnar <mingo@redhat.com>, Robert Love <rml@tech9.net>,
        George Anzinger <george@mvista.com>, Andrew Morton <akpm@zip.com.au>
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> You can get an up-to-date version in the 2.4.19-pre6-jam1 patcset in
> 
> http://giga.cps.unizar.es/~magallon/linux/kernel/

Didn't you noticed any of the reports about very bad numbers for latency since 
Ingo's latest 2.4.17-K3 version?
Even Alan's tree show the same (latest I've checked was 2.4.19-pre2-ac2).

We do need some words from Ingo first.
He haven't answered my posts since February ;-(
But yaybe he didn't got them 'cause I send them to mingo@elte.hu ???

If you run without O(1) latency is like before.
You'll get better numbers with preemption+lock-break (ongoing merge of 
Andrew's lowlatency patches).

But I see some kernel hangs with preemption on UP.
It happens only during "make bzlilo" (the linking stage). Robert?
Apart from that it works well.

-Dieter

-- 
Dieter N?tzel
Graduate Student, Computer Science

University of Hamburg
Department of Computer Science
@home: Dieter.Nuetzel@hamburg.de

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