** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2022098
Title:
Severe NFS performance degradation after LP #2003053
Status in linux package in Ubuntu:
Incomplete
Status in linux-gke package in Ubuntu:
New
Status in linux source package in Focal:
Incomplete
Status in linux-gke source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Incomplete
Status in linux-gke source package in Jammy:
Fix Committed
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.
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