Thought I'd post this here, too - I emailed it to the redhat list, and that's pretty moribund, while I've seen redhatters here....
---------------------------- Original Message ---------------------------- Subject: Bug 800181: NFSv4 on RHEL 6.2 over six times slower than 5.7 From: m.roth@5-cent.us Date: Tue, July 10, 2012 09:54 To: "General Red Hat Linux discussion list" redhat-list@redhat.com --------------------------------------------------------------------------
m.roth@5-cent.us wrote:
For any redhatters on the list, I'm going to be reopening this bug today.
I am also VERY unhappy with Redhat. I filed the bug months ago, and it was *never* assigned - no one apparently even looked at it. It's a show-stopper for us, since it hits us on our home directory servers.
A week or so ago, I updated our test system to 6.3, and *nothing* has changed. Unpack a large file locally, and it's seconds. Unpack from an NFS-mounted directory to a local disk takes about 1.5min. NFS mount either an ext3 or ext4 fs, cd to that directory, and I run a job to unpack a large file to the NFS-mounted directory, and it's between 6.5 and 7.5 *MINUTES*. We cannot move our home directory servers to 6.x with this unacknowledged ->BUG<-.
Large file is defined as a 28M .gz file, unpacked to 92M.
This is 100% repeatable.
I tried sending an email to our support weeks ago, and got no response. Maybe it takes shaming in a public forum to get anyone to acknowledge this exists....
mark