We see a similar problem. We have a RAID < DRBD < LVM < EXT4 < NFS configuration that worked fine with Ubuntu 10.04. After upgrading to 12.04 LTS the performance dropped significantly. The clients block often, editing files is a pain and so on. We consider going back to Ubuntu 10.04.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1006446 Title: nfs4 causes enormous load in ubuntu-server making it unusable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1006446/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs