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DateWed, 26 Mar 2008 23:09:20 -0700
FromJeremy Fitzhardinge <>
SubjectRe: Trying to make use of hotplug memory for xen balloon driver
KAMEZAWA Hiroyuki wrote:
> At first, I believe usual DIMM size is bigger than SECTION_SIZE_BITS. This is
> designed for hardware-based hotplug.
>
> If you want to use memory-hotplug for virtualized enviroment, it's good to make
> this to be smaller chunk. Powerpc/IBM lpar uses 16MB chunk.
>
> It's a trade-off between section mainainance cost v.s. size of plugged memory.
> please find the best.
> 

Yes, that's what I thought.  I'd been thinking of something around the 
64-256MB mark.  I'll experiment, but I've got some Xen-specific problems 
to solve first.

Thanks,
    J
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