From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: [Linux-ia64] Re: web page on O(1) scheduler
Date: Wed, 21 May 2003 17:56:19 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590723705972@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590723705966@msgid-missing>
>>>>> On Wed, 21 May 2003 11:26:31 +0200, Mike Galbraith <efault@gmx.de> said:
Mike> The page mentions persistent starvation. My own explorations
Mike> of this issue indicate that the primary source is always
Mike> selecting the highest priority queue.
My working assumption is that the problem is a bug with the dynamic
prioritization. The task receiving the signals calls sleep() after
handling a signal and hence it's dynamic priority should end up higher
than the priority of the task sending signals (since the sender never
relinquishes the CPU voluntarily).
However, I haven't actually had time to look at the relevant code, so
I may be missing something. If you understand the issue better,
please explain to me why this isn't a dynamic priority issue.
--david
next prev parent reply other threads:[~2003-05-21 17:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-21 9:01 [Linux-ia64] Re: web page on O(1) scheduler Arjan van de Ven
2003-05-21 9:26 ` Mike Galbraith
2003-05-21 9:30 ` Mike Galbraith
2003-05-21 10:40 ` Duraid Madina
2003-05-21 10:43 ` Christoph Hellwig
2003-05-21 15:18 ` David Mosberger
2003-05-21 17:56 ` David Mosberger [this message]
2003-05-21 20:46 ` Mike Galbraith
2003-05-22 0:38 ` Rik van Riel
2003-05-22 5:52 ` Mike Galbraith
2003-05-22 9:52 ` Mike Galbraith
2003-05-22 16:25 ` Mike Galbraith
2003-05-22 17:58 ` David Mosberger
2003-05-23 1:07 ` Hans Boehm
2003-05-23 8:30 ` Arjan van de Ven
2003-05-23 17:48 ` Boehm, Hans
2003-05-23 18:04 ` Davide Libenzi
2003-05-24 0:10 ` Boehm, Hans
2003-05-24 0:20 ` Davide Libenzi
2003-05-24 0:53 ` Boehm, Hans
2003-05-24 5:38 ` Davide Libenzi
2003-05-24 14:43 ` Davide Libenzi
2003-05-24 16:50 ` Hans Boehm
2003-05-24 21:41 ` Davide Libenzi
2003-05-25 9:17 ` Mike Galbraith
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