Xen users - Oct 2008 - cpu affinity lost after save/restore

i have found some discussions on the devel archives about cpu affinity not 
being remembered across save/restore and how migration uses the same 
process as save/restore.  the implication is that cpu affinity is 
purposely being ignored.  is that the case?  if so, is there an automated 
way to set cpu affinity after a restore?  i realize that i may being using 
affinity without really needing to, but until i have more experience with 
xen, i like the idea of isolating guests to specific cpus.

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Hi Joe,

I might be misunderstanding but I think the VM config file sample below
will pin 2 VCPUs on cores 6 & 7 including on startup and restore:

vcpus = 2
cpus = ["5", "6"]

Rob

-----Original Message-----
From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Joe Pruett
Sent: 03 October 2008 18:04
To: xen-users@lists.xensource.com
Subject: [Xen-users] cpu affinity lost after save/restore

i have found some discussions on the devel archives about cpu affinity
not 
being remembered across save/restore and how migration uses the same 
process as save/restore.  the implication is that cpu affinity is 
purposely being ignored.  is that the case?  if so, is there an
automated 
way to set cpu affinity after a restore?  i realize that i may being
using 
affinity without really needing to, but until i have more experience
with 
xen, i like the idea of isolating guests to specific cpus.

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Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

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i have been pointed to a patch against 3.1 that may be in current code 
now, but isn''t in the version under centos 5.2.  i haven''t had
time to
test it yet.

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