** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Released
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https://bugs.launchpad.net/bugs/1917918
Title:
SRU: Add FUA support for XFS
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
In Progress
Bug description:
SRU justification:
[Impact]
This 4 patch set adds backported support for Forced Unit Access (FUA)
on XFS file systems to the 18.04 (Bionic) GA (4.15) kernel. FUA on XFS
was added upstream in 4.18.
FUA on XFS is important for SQL server work loads.
[Test Plan]
SQLIOSIM (a package from Microsoft) was used to test performance
improvements. Tests were run with an XFS file system mounted on a persistent
memory block device (PMEM) partition. Performance metrics were found to exhibit
satisfactory improvement gains from the GA kernel.
[Where problems could occur]
Well, these are patches to file system code. They _could_ cause
widespread corruption. However, multiple test passes with sqliosim
exhibited no issues.
[Other Info]
See attached sqliosim.cfg.ini configuration file for test run
parameters.
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