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xen-users
Re: [Xen-users] Scheduling questions
Tim Freeman wrote:
> On Tue, 10 Jan 2006 12:31:12 -0600
> Tim Freeman <tfreeman@xxxxxxxxxxx> wrote:
>
>
>>On Tue, 10 Jan 2006 18:48:40 +0100
>>Michael Heyse <mhk@xxxxxxxxxxxxxxxxx> wrote:
>>
>>
>>>Hi,
>>>
>>>where can I find some information about how xen-3's schedulers work and
>>>their parameters? The default setup completely locks up all domU domains
>>>on my machine (VIA Nehemiah EPIA board) whenever the dom0 domain is
>>>doing CPU/IO-intensive stuff, and the only solution I found so far is to
>>>adjust the weight of each domain (eg xm sched-sedf <domID> 0 0 0 0 1 for
>>>each domain) but this seems to be a waste of CPU capacity.
>>
>>The second to last parameter is an extra_time flag that allows a domain to use
>>extra CPU time if it is available. Change that to '1' to allow domains to use
>>any idle CPU during the scheduling period (you must do so from dom0 as well).
Allright, thanks for the tipp, now it's working perfectly!
> Sorry, a typo, I meant "for dom0" not "from dom0" (although the change indeed
> must be done from dom0).
Thanks,
Michael
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