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[Xen-cim] RE: Removing pcpus from the scheduling pool
| To: | "Keir Fraser" <keir@xxxxxxxxxxxxx>, "Emmanuel Ackaouy" <ackaouy@xxxxxxxxx> |
|---|---|
| Subject: | [Xen-cim] RE: Removing pcpus from the scheduling pool |
| From: | "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx> |
| Date: | Tue, 19 Dec 2006 10:24:51 -0500 |
| Cc: | xen-cim@xxxxxxxxxxxxxxxxxxx, Jim Fehlig <jfehlig@xxxxxxxxxx> |
| Delivery-date: | Tue, 19 Dec 2006 07:25:26 -0800 |
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| In-reply-to: | <C1ADB254.654D%keir@xxxxxxxxxxxxx> |
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| Thread-index: | AccjXn4R5ruqZzR9Qr6ddPxBJlz8mgAHnBMgAADcdQ8AAFHO8A== |
| Thread-topic: | Removing pcpus from the scheduling pool |
Keir, > >> * Support for ResourcePoolConfigurationService on some pool types, > >> e.g. ProcessorPool.This functionality will support for example > >> removing PCPUs from the pool and dedicate to management > domain, thus > >> restricting set of PCPUs available for consumption by VMs. > Does xen > > support > >> this? Can we mask PCPUs such that they are not available to VMs? > > End quote. > > > > What needs to be done to add this functionality to the current > > scheduler? > > The scheduler supports this already: it will simply be > necessary to remove the PCPUs removed from the pool from > every domain's affinity map. All this requires is for the > tool stack on the box to remember which PCPUS are in the pool > and apply that as a mask to the affinity map of every guest. Thanks. That should solve it. Raj _______________________________________________ Xen-cim mailing list Xen-cim@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-cim |
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