[Xen-devel] Fwd: SEDF default parameters.

To:	xen-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-devel] Fwd: SEDF default parameters.
From:	"Devdutt Patnaik" <xendevid@xxxxxxxxx>
Date:	Mon, 7 Jul 2008 17:40:19 -0400
Delivery-date:	Mon, 07 Jul 2008 14:41:10 -0700
Dkim-signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:in-reply-to:mime-version:content-type:references; bh=MYzhnXjuhKnPZcCyr0DZhAPHKCAv8/JihbOJJovicMM=; b=kUs/EN1L+Za7PKKlt1K1CGzCqyAlYVCTBb0NxCUc88156vsQJbeanwZFt3XDOVTNXC d5f4QQ7SBo6OO+D1Dgiwi++75X1WJfo4xr6TqBMq81wMT5S+5fUyPdxUjgMczG8t2Z7Y 8Yy7CJJSbcg1hvtK01OhJdYsGFTj3Sq/XiiQc=
Domainkey-signature:	a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version :content-type:references; b=vifR0O9PzqZzwfflT/YgMRgYQv1slTWwhzn0+SxzlBnvpKgSqikKgsycoXDkmE/B7y drKvrZDsNPCa4yp2RSnjlWERcuJs44pgJeoQo0Z2zjN/yPU4l5NP4bchIdUYBOnP5eou L/6wo+4flSjNDgFR8dAt9unl+SIclSlJ+/a+I=
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to:	<15184ca00807071436x72a2bc1ewd2e8c64d89c76643@xxxxxxxxxxxxxx>
List-help:	<mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id:	Xen developer discussion <xen-devel.lists.xensource.com>
List-post:	<mailto:xen-devel@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References:	<15184ca00807071436x72a2bc1ewd2e8c64d89c76643@xxxxxxxxxxxxxx>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx

Hi All,

I am forwarding this to the xen-devel list too as I thought I would get some answers here too..

I changed the scheduler in my xen installation to sedf, from the default credit based scheduler.
I am using xen 3.1.

When I do an xm sched-sedf I see :

Name                              ID Period(ms) Slice(ms) Lat(ms) Extra Weight
Domain-0                          -1      -0.0      -0.0    -0.0     -1     -1
vm01                              -1      -0.0      -0.0    -0.0     -1     -1
vm02                              -1      -0.0      -0.0    -0.0     -1     -1
vm03                              -1      -0.0      -0.0    -0.0     -1     -1
vm04                              -1      -0.0      -0.0    -0.0     -1     -1
vm05                              -1      -0.0      -0.0    -0.0     -1     -1
vm06                              -1      -0.0      -0.0    -0.0     -1     -1

Also a separate query for Dom0 returns :

#xm sched-sedf Domain-0
Name                              ID Period(ms) Slice(ms) Lat(ms) Extra Weight
Domain-0                          -1      -0.0      -0.0    -0.0     -1     -1

Arent there some default parameters that the sedf scheduler uses when it is first used ?
The credit based one had a default weight of 256 for all VMs. Whats the case with SEDF ?
What would happen if I were to use these settings as is ?

Thanks,
Devdutt.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

WARNING - OLD ARCHIVES

xen-devel

[Xen-devel] Fwd: SEDF default parameters.