Comment 78 for bug 2009325

I would like to begin by expressing my sincere appreciation for your invaluable assistance in identifying the performance issue and presenting us with a clear reproducer for testing.
Your contributions have been extremely helpful.

We have carefully considered the possibility of reverting the NFS-related patches and have consulted with both our kernel team and specialists.
While we acknowledge that the patch does address a functional error as outlined in LP#2003053, we also recognize that the bug responsible for the misbehavior of the new mechanism has been fixed. However, we understand that the current impact on performance resulting from the additional traffic is a significant concern.

Despite the fact that the new mechanism adheres to the principles of POSIX design, we are faced with the challenge of devising an appropriate approach to address this issue.
We understand that the new mechanism in NFS is having an impact on your production environment and we are fully committed to working with upstream to resolve the issue.
As soon as we and upstream reach a consensus, we will open a new bug to address the performance issue.

We sincerely apologize for any inconvenience caused by this issue,
and we appreciate your patience and understanding as we work towards a solution that is both effective and aligned with POSIX design principles.