On Tue, Jul 9, 2013 at 2:40 PM, Snider, Tim <Tim.Snider at netapp.com> wrote: > I have 2 openstack clusters running the Folsom release with multiple Swift > nodes. I also have a small setup that is running only Swift with a single > node. I’m noticing very large Swift I/O latencies (seconds long) on the > openstack clusters – ssbench output snippet is below. Performance is > approximately identical on the openstack clusters. The Swift only cluster > performs much better. **** > Keystone performance can be pretty awful unless you are using something else than the default WSGI container configuration (single process eventlet I think). I would suggest you try to run it under apache with multiple process. See the dicussion at last summit about Keystone performance here : https://etherpad.openstack.org/havana-keystone-performance Chmouel. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20130709/186ae2a4/attachment.html>