I am removing the duplication of this bug due to the fact that this requires a separate fix from bug 2015827, and the fix is still applied and queued for release.
** This bug is no longer a duplicate of bug 2015827 NFS performance issue while clearing the file access cache upon login -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-gke in Ubuntu. https://bugs.launchpad.net/bugs/2022098 Title: Severe NFS performance degradation after LP #2003053 Status in linux package in Ubuntu: Confirmed Status in linux-gke package in Ubuntu: Confirmed Status in linux source package in Focal: Fix Committed Status in linux-gke source package in Focal: Fix Released Status in linux source package in Jammy: Fix Committed Status in linux-gke source package in Jammy: Fix Released Bug description: The fix to LP #2003053 has caused massively increased NFS server access in some use-cases, which caused severe performance degradation to the point of being unusable in some cases. The solution to this issue, at least temporarily and at least for linux-gke, is to make the new behaviour optional using the "nfs_fasc=1" module parameter. Without this parameter specified, (or specified as =0) will keep the old behaviour. Regresion potential: - Regression potential is considered low considering the scope of the change and is limited to NFS only. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2022098/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
