Public bug reported:
[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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: Incomplete
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https://bugs.launchpad.net/bugs/1917918
Title:
Add FUA support for XFS
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