From mboxrd@z Thu Jan 1 00:00:00 1970 From: Diwaker Gupta Subject: atropos scheduler params Date: Thu, 14 Oct 2004 15:46:59 -0700 Sender: xen-devel-admin@lists.sourceforge.net Message-ID: <1b0b4557041014154678dd30@mail.gmail.com> Reply-To: Diwaker Gupta Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Hi folks, I'm trying to use the atropos scheduler with Xen. Couple of questions: - the scheduling param *has* to be specified at boot time right, or does Xen allow changing the scheduling scheme at run time?? - xm help atropos gives a very vague message at best, perhaps we could make it more elaborate: xm atropos DOM SLICE PERIOD LATENCY XTRATIME o is DOM the vm ID or the vm NAME (as appearing in xm list) o SLICE, PERIOD are in nanoseconds I believe? o XTRATIME has to be 1/0 ? o some examples with typical values would be great Finally, I'm passing sched param to Xen at boot time as: kernel /boot/xen.gz dom0_mem=65536 sched=atropos But the machine failts to boot with a "CPU 0 is toasted" type of message! :-O If remove the sched param, things work just fine again. Any ideas? Thx -- Diwaker Gupta http://resolute.ucsd.edu/diwaker ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl