What you are looking for is Numa capabilities for Xen, which
unfortunately I don’t believe exists just yet, at least in the capacity
that you are asking.
From what I can tell by reading discussion
threads, Xen (should) export Numa
information to guests about cpu to memory page distances,
so a numa aware guest (linux
2.5/2.6, windows 2003 server and newer.. etc) will be able to take advantage of
that information for scheduling processes, but I don’t believe Xen in itself can assign memory based on the distance to
the vcpu’s used for that guest. At least, not yet.
From:
xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of dinesh chandrasekaran
Sent: June 3, 2008 3:39 PM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: ***DHSPAM*** [Xen-users]
Xen DomU memory allocation [regd]
Hi All,
I use a dual core processor on which xen runs (since one of them becomes the
master, xen and Dom0 gets loaded from the memory behind that processor).
How and where would I have to change the configuration under xen to force it to
use the memory behind other processor for allocating guest memory (DomUs), if
created one.
Thanks,
Dinesh C
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