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

Re: [Xen-devel] Xen 3.4.1 NUMA support



I haven't had time to look at NUMA stuff at all. I probably will look at it eventually, if no one else does, but I'd be happy if someone else could pursue it.

-George

Dan Magenheimer wrote:
VMware has the notion of a "cell" where VMs can be
scheduled only within a cell, not across cells.
Cell boundaries are determined by VMware by
default, though certains settings can override them.

An interesting project might be to implement
"numa=cell" for Xen.... or maybe something similar
is already in George Dunlap's scheduler plans?

-----Original Message-----
From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
Sent: Wednesday, November 04, 2009 5:33 AM
To: Papagiannis Anastasios; xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Xen 3.4.1 NUMA support


Add Xen boot parameter 'numa=on' to enable NUMA detection. Then it's up to you to, for example, pin domains to specific nodes, using the 'cpus=...' option in the domain config file. See /etc/xen/xmexample1 for an example of
its usage.

 -- Keir

On 04/11/2009 12:02, "Papagiannis Anastasios" <apapag@xxxxxxxxxxxx> wrote:

Hello,

does the last version of Xen(3.4.1) support NUMA machines?
Is there a .pdf
or a link that can give me some more details about that? I work on a
project for xen performace in numa machines. And in xen 3.3.0 this
performance isn't good. Have something changed in last version?

Thanks in advance,
Papagiannis Anastasios


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

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