This presentation from the summit might be of interest to you: http://www.openstack.org/summit/portland-2013/session-videos/presentation/scaling-the-boot-barrier-identifying-and-eliminating-contention-in-openstack I couldn't find just the slide deck anywhere so far. Your issue is different being that you're seeing 30 minute launch time, that's extreme, but this info might help you get a high level picture of the flow. Melanie On 4/30/13 11:42 AM, Steve Heistand wrote: > if I launch one vm at a time its doesnt very long to start up the instance. maybe a minute. > if I launch 4 instances (of the same snapshot as before) it takes 30 minutes. > > they are all launching to different compute nodes, the controllers are all multicore, > I dont see any processes on the compute nodes taking much cpu power, the controller has > a keystone process mostly sucking up 1 core, loads and loads of beam.smp from rabbitmq but > none are really taking any cpu time. > > the glance image storage is on the controller node, the snapshots are 2-3G in size. > > where should I start looking to find out why things are so slow? > > thanks > > s > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack at lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp >