Hi, I tested Swift backup driver in Cinder-backup and that performance isn't high. In our test environment, The average time for backup 50G volume is 20min. I found a patch for this that add multi thread for swift backup driver( https://review.openstack.org/#/c/111314) but It's also too slow. It looks like that patch doesn't implement thread properly. Is there any improvement way about this? I'd appreciate other's thoughts on these issues. Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150401/5a82f5a2/attachment.html>