Xen devel - Jul 2006 - [Xen-tools] What''s the main difference between BVT and EDF?,

Hi folks

BVT and EDF are both xen scheduler.
It is expected that administrator will choose the scheduler most appropriate
to their application and configure the
machine to boot with that scheduler.
I just wonder  What''s the main difference between BVT and EDF?
What kind of scenario to use them?
Thanks


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On 4 Jul 2006, at 09:04, rickey berkeley wrote:
> Hi folks
>  
> BVT and EDF are both xen scheduler.
> It is expected that administrator will choose the scheduler most 
> appropriate to their application and configure the
> machine to boot with that scheduler.
> I just wonder  What''s the main difference between BVT and EDF?
> What kind of scenario to use them?
With the new credit scheduler checked into the xen-unstable tree, I 
wouldn''t recommend to use either BVT or SEDF. They''re both
buggy. The
new scheduler is supported by us, automatically load balances on SMP 
systems, and has a simpler administrator interface. Once credit 
scheduler has demonstrated its stability we''ll most likely remove the 
other two schedulers.

  -- Keir


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Can you give me more information about the advantage and working  mechanism

of this credit scheduler ?or some link ,Thanks in advance !

On 7/4/06, Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
wrote:
>
>
> On 4 Jul 2006, at 09:04, rickey berkeley wrote:
>
> > Hi folks
> >
> > BVT and EDF are both xen scheduler.
> > It is expected that administrator will choose the scheduler most
> > appropriate to their application and configure the
> > machine to boot with that scheduler.
> > I just wonderWhat''s the main difference between BVT and EDF?
> > What kind of scenario to use them?
>
> With the new credit scheduler checked into the xen-unstable tree, I
> wouldn''t recommend to use either BVT or SEDF. They''re
both buggy. The
> new scheduler is supported by us, automatically load balances on SMP
> systems, and has a simpler administrator interface. Once credit
> scheduler has demonstrated its stability we''ll most likely remove
the
> other two schedulers.
>
> -- Keir
>
>

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