Seems like redhat had the same exact issue patched (stated as solved): http://article.gmane.org/gmane.linux.nfs/60081 (upstream) https://bugzilla.redhat.com/show_bug.cgi?id=1001934 (redhat)
** Bug watch added: Red Hat Bugzilla #1001934 https://bugzilla.redhat.com/show_bug.cgi?id=1001934 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1270445 Title: slow NFS4 without "NEED_GSSD=yes" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1270445/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs