[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] how to move the memory of a domain from one NUMAnode to another?

On gio, 2013-08-08 at 13:56 +0800, butine@xxxxxxxxxx wrote:
> linux provides the function move_pages ,which can move individual
> pages of a process to another node,as follows:
> long move_pages(int pid, unsigned long count, void **pages,
>     const int *nodes, int *status, int flags);
> Therefore,if xen can provide the similar approach,then we recognize
> the hot memory pages,and preferentially migrate the hot memory
> pages.Then the efficiecy of VM's migration will be very high.
Yes, but unfortunately Xen can't provide something like that. It may be
possible for HVM (or, in general, autotranslated) guests, but not for PV
guests. :-(

> And how to improve about the new version of memory migration?  
For now, I'm concentrating on making it work. After that, we'll see how
to make if better, faster, more efficient, etc.


<<This happens because I choose it to happen!>> (Raistlin Majere)
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

Attachment: signature.asc
Description: This is a digitally signed message part

Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.