Andrew Theurer schrieb:
>On Friday 08 July 2005 09:53, Dan Magenheimer wrote:
>
>
>>> Shouldn't IDLE domain not be scheduled for most time? Because
>>>idle task will call into PAL for power save on XEN/IA64, the
>>>performance is really, really bad to boot Dom0. The net effect is
>>>about ten times slower. After adding "sched=bvt", everything back
>>>to normal.
>>> 
>>>
>>If the sedf scheduler is scheduling the idle domain when
>>domain0 is runnable, surely this is affecting performance
>>on x86 also and is a bug that should be fixed?
>>
>>Has anyone done any performance testing (on x86) since
>>sedf was checked in as the default?
>> 
>>
>
>Just tried launching some cpu bound tasks in dom0, and I get only 75% 
>cpu util for dom0. I'll try the other domain scheduler and see if it 
>clears it up.
>
>-Andrew
>
>
> cpu0: [075.3] d0-0[075.3]
> cpu1: [075.3] d0-1[075.3]
> cpu2: [075.3] d0-2[075.3]
> cpu3: [074.8] d0-3[074.8]
>
>
This is the current default behaviour of domain 0, it gets 75% of the
CPU time and no slack time. This is easily changeable, and I guess it is
usefull to do so!
Stephan
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel