Thanks for the help guys, that worked.
John
-----Original Message-----
From: Tim Freeman [mailto:tfreeman@xxxxxxxxxxx]
Sent: Thursday, April 06, 2006 5:24 PM
To: John Cianfarani
Cc: xen-users@xxxxxxxxxxxxxxxxxxx; amitayudas@xxxxxxxxx
Subject: Re: [Xen-users] Questions about sedf scheduler
On Thu, 6 Apr 2006 16:01:38 -0400
"John Cianfarani" <jcianfarani@xxxxxxxxxx> wrote:
How does one go about building sedf.c. I tried several gcc options but
I
keep gettings errors.
Try:
cc -lxenctrl -o sedf_dump sedf_dump.c
But I think it is not working correctly now, I get slice/weight = 0 for
all
domains which is not right.
Tim
Thanks
John
________________________________
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Amitayu
Das
Sent: Tuesday, March 28, 2006 2:54 PM
To: xen-users
Subject: [Xen-users] Questions about sedf scheduler
Hi,
Diwaker had provided a program sedf.c on Jan30 to obtain the
parameters
for sedf scheduler
(please check
http://lists.xensource.com/archives/html/xen-users/2006-01/msg01228.html
).
In my setup, I'd two DomUs and Dom0 was running. I got the following
output while running the program:
# ./sedf
Domina#0: slice = 15000000, period = 20000000, extratime = 1, latency
=
0, weight = 0
Domina#18: slice = 0, period = 100000000, extratime = 1, latency = 0,
weight = 0
Domina#19: slice = 0, period = 100000000, extratime = 1, latency = 0,
weight = 0
I did not understand few things and would appreciate very much if
someone can clarify the following doubts:
1. Why the period-length is different for Dom0 and DomU's?
2. Does period-length mean the total time within which *all* domains
are
supposed to be scheduled *at least once*?
What does it mean exactly? What does slice-length mean exactly?
3. Can a domU have a slice-length as 0? If so, how can it be
scheduled?
I presume that value of extratime flag will make it scheduled, if set.
Please clarify.
4. If extratime flag was not set, do we need to set non-zero
slice-length explicitly to schedule a DomU?
Thanks in advance
,
Amitayu
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