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Re: [Xen-devel] SEDF Scheduler slice time fix
| To: | Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] SEDF Scheduler slice time fix |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Fri, 19 May 2006 17:47:00 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 19 May 2006 09:47:22 -0700 |
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On 19 May 2006, at 03:46, Atsushi SAKAI wrote: Without this patch, CPU slice time is over allocated. (Because CPU slice time is absolute time at this moment(large value), but waitq time is relative time(small value), and MIN() selects smaller value(waitq).) A question then: you change the parameter to MIN() to no longer have 'now' added to it. Because both values are supposed to be relative not absolute. If that's the case, should we be subtracting 'now' from the result of MIN()? We currently do, and your patch does not change that. So it seems a bit odd to me. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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