[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [Xen-users] Questions about sedf scheduler


  • To: <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "John Cianfarani" <jcianfarani@xxxxxxxxxx>
  • Date: Fri, 7 Apr 2006 10:45:04 -0400
  • Cc: Tim Freeman <tfreeman@xxxxxxxxxxx>, amitayudas@xxxxxxxxx
  • Delivery-date: Fri, 07 Apr 2006 07:45:45 -0700
  • Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=rogers.com; h=Received:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Date:Content-class:Message-ID:X-MS-Has-Attach:X-MimeOLE:X-MS-TNEF-Correlator:Thread-Topic:Thread-Index:From:To:Cc; b=ejTEBTGVYQFXZH8giW4R6Fkrg9pjkIV4XqPADK0nNzlzUGmaZL8tAq9+EjQC7t2crd6s6SOTCIA6fcGGYJNvKL/lrvois/VkI5EoowqrCQVyh8uo1FPWUMVt0m1dvrpoJzZuzgIo/cHsXnC8MTN1fvUZD6CU9qFeTMVL/rG6ubk= ;
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AcZZwI/J7R0vlxTDSMS7DGFuzuIKRQBWle4w
  • Thread-topic: [Xen-users] Questions about sedf scheduler

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
> 
> 



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


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.