Re: [Openstack] Nova guest NUMA placement questions

2014-09-29 Thread Daniel P. Berrange
On Fri, Sep 26, 2014 at 01:03:06PM -0400, Sean Toner wrote: > On Friday, September 26, 2014 03:09:05 PM Daniel P. Berrange wrote: > > > > 1. What happens on an overcommit for the number of guest CPUs? > > > > > >- For example, if I have a system with 2 sockets 4 cores each, > > >what > >

Re: [Openstack] Nova guest NUMA placement questions

2014-09-26 Thread Sean Toner
On Friday, September 26, 2014 03:09:05 PM Daniel P. Berrange wrote: > > 1. What happens on an overcommit for the number of guest CPUs? > > > >- For example, if I have a system with 2 sockets 4 cores each, > >what > > > > would happen if I have 2 guests, each one wanting 6 cores (assuming

Re: [Openstack] Nova guest NUMA placement questions

2014-09-26 Thread Daniel P. Berrange
On Fri, Sep 26, 2014 at 08:54:38AM -0400, Sean Toner wrote: > Hello, > > I'm new to OpenStack development and would like to test the upcoming > NUMA features in Nova, particularly with regards to this blueprint: > > https://blueprints.launchpad.net/nova/+spec/virt-driver-numa-placement > > Howe

Re: [Openstack] Nova guest NUMA placement questions

2014-09-26 Thread Daniel P. Berrange
On Fri, Sep 26, 2014 at 01:43:26PM +, Robert van Leeuwen wrote: > > I'm new to OpenStack development and would like to test the upcoming > > NUMA features in Nova, particularly with regards to this blueprint: > > > > > > > >4. How to test whether a guest topology is actually using the memo

Re: [Openstack] Nova guest NUMA placement questions

2014-09-26 Thread Robert van Leeuwen
> I'm new to OpenStack development and would like to test the upcoming > NUMA features in Nova, particularly with regards to this blueprint: > > > >4. How to test whether a guest topology is actually using the memory > from the NUMA node it is specified to run on? >- Can this be verified a

[Openstack] Nova guest NUMA placement questions

2014-09-26 Thread Sean Toner
Hello, I'm new to OpenStack development and would like to test the upcoming NUMA features in Nova, particularly with regards to this blueprint: https://blueprints.launchpad.net/nova/+spec/virt-driver-numa-placement However, I'm a bit hazy with regards to several things. For example: 1. What h