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xen-devel
RE: [Xen-devel] Power aware credit scheduler
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To: |
"Ian Pratt" <Ian.Pratt@xxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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Subject: |
RE: [Xen-devel] Power aware credit scheduler |
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From: |
"Tian, Kevin" <kevin.tian@xxxxxxxxx> |
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Date: |
Thu, 19 Jun 2008 21:42:05 +0800 |
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Cc: |
ackaouy@xxxxxxxxx, "Wei, Gang" <gang.wei@xxxxxxxxx>, "Yu, Ke" <ke.yu@xxxxxxxxx> |
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Thu, 19 Jun 2008 06:42:34 -0700 |
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Thread-topic: |
[Xen-devel] Power aware credit scheduler |
>From: Ian Pratt [mailto:Ian.Pratt@xxxxxxxxxxxxx]
>Sent: 2008年6月19日 21:31
>
>> Well, when such scale can be or should be applied to other facets,
>> original proposal on freq side doesn't apply as I replied to
>myself in
>> another mail, since credit scheduler can't anticipate the freq
>> distribution
>> in next accounting phase, unless freq change is controlled by
>> scheduler fully. But we'll experiment adding scheduler input
>into freq
>> governor as discussed with Keir. :-)
>
>That's OK -- it's fine to account in arrears, and doing so
>will have the
>right influence on how we schedule things in the future. That's why
>it's important to move from tick accounting to absolute.
>
OK, then that'll be some mutual inputs between scheduler and
freq governor...
Thanks
Kevin
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