Re: [openstack-dev] Performance Regression in Neutron/Havana compared to Quantum/Grizzly

2013-12-10 Thread Peter Feiner
On Tue, Dec 10, 2013 at 7:48 AM, Nathani, Sreedhar (APS) sreedhar.nath...@hp.com wrote: My setup has 17 L2 agents (16 compute nodes, one Network node). Setting the minimize_polling helped to reduce the CPU utilization by the L2 agents but it did not help in instances getting the IP during

[openstack-dev] Keystone Concurrency Races in SQL Assignment Backend

2013-10-30 Thread Peter Feiner
Hi Brant, In addition to the race you've fixed in https://review.openstack.org/#/c/50767/, it looks like there are quite a few more races in the SQL backend of keystone.assignment. I filed a bug to this effect: https://bugs.launchpad.net/keystone/+bug/1246489. The general problem is that

Re: [openstack-dev] Keystone Concurrency Races in SQL Assignment Backend

2013-10-31 Thread Peter Feiner
consistently. - Brant On Wed, Oct 30, 2013 at 5:08 PM, Peter Feiner pe...@gridcentric.ca wrote: Hi Brant, In addition to the race you've fixed in https://review.openstack.org/#/c/50767/, it looks like there are quite a few more races in the SQL backend of keystone.assignment. I filed a bug

Re: [openstack-dev] [nova] Do we have some guidelines for mock, stub, mox when writing unit test?

2013-11-19 Thread Peter Feiner
A substantive reason for switching from mox to mock is the derelict state of mox releases. There hasn't been a release of mox in three years: the latest, mox-0.5.3, was released in 2010 [1, 2]. Moreover, in the past 3 years, substantial bugs have been fixed in upstream mox. For example, with the

Re: [openstack-dev] [nova] Do we have some guidelines for mock, stub, mox when writing unit test?

2013-11-19 Thread Peter Feiner
On Tue, Nov 19, 2013 at 11:19 AM, Chuck Short chuck.sh...@canonical.com wrote: Hi On Tue, Nov 19, 2013 at 10:43 AM, Peter Feiner pe...@gridcentric.ca wrote: A substantive reason for switching from mox to mock is the derelict state of mox releases. There hasn't been a release of mox in three

Re: [openstack-dev] [nova] Do we have some guidelines for mock, stub, mox when writing unit test?

2013-12-04 Thread Peter Feiner
On Wed, Dec 4, 2013 at 11:16 AM, Nikola Đipanov ndipa...@redhat.com wrote: 1) Figure out what is the deal with mox3 and decide if owning it will really be less trouble than porting nova. To be hones - I was unable to even find the code repo for it, only [3]. If anyone has more info - please

Re: [openstack-dev] Performance Regression in Neutron/Havana compared to Quantum/Grizzly

2013-12-05 Thread Peter Feiner
On Thu, Dec 5, 2013 at 8:23 AM, Nathani, Sreedhar (APS) sreedhar.nath...@hp.com wrote: Hello Marun, Please find the details about my setup and tests which i have done so far Setup - One Physical Box with 16c, 256G memory. 2 VMs created on this Box - One for Controller and One for

Re: [openstack-dev] Moving task flow to conductor - concern about scale

2013-07-19 Thread Peter Feiner
On Fri, Jul 19, 2013 at 11:06 AM, Dan Smith d...@danplanet.com wrote: FWIW, I don't think anyone is suggesting a single conductor, and especially not a single database proxy. This is a critical detail that I missed. Re-reading Phil's original email, I see you're debating the ratio of

Re: [openstack-dev] Moving task flow to conductor - concern about scale

2013-07-19 Thread Peter Feiner
On Fri, Jul 19, 2013 at 10:15 AM, Dan Smith d...@danplanet.com wrote: So rather than asking what doesn't work / might not work in the future I think the question should be aside from them both being things that could be described as a conductor - what's the architectural reason for

[openstack-dev] Article on Improving Openstack's Parallel Performance

2013-07-22 Thread Peter Feiner
Hello, I've written an article about my ongoing work on improving OpenStack's parallel performance: http://blog.gridcentric.com/bid/318277/Boosting-OpenStack-s-Parallel-Performance The article discusses host configuration changes and patches (upstream and in progress) that give a 74% speedup in

Re: [openstack-dev] Article on Improving Openstack's Parallel Performance

2013-07-30 Thread Peter Feiner
On Mon, Jul 29, 2013 at 7:06 PM, Aaron Rosen aro...@nicira.com wrote: Hi Peter, Great article. Any interest in pushing your N-work quantum-server patch upstream? Thanks Aaron! I'm certainly interested in pushing the patch upstream :-) When I submit a review, we'll see if the community