From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Wed, 21 May 2003 17:56:19 +0000 Subject: [Linux-ia64] Re: web page on O(1) scheduler Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Wed, 21 May 2003 11:26:31 +0200, Mike Galbraith 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