Comment 0 for bug 1917918

Revision history for this message
Tim Gardner (timg-tpi) wrote : Add FUA support for XFS

[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.