Ted Ts’o sent out the EXT4 updates today for Linux 6.11. He explained in that pull request:
“Many cleanups and bug fixes in ext4, especially for the fast commit feature. Also some performance improvements; in particular, improving IOPS and throughput on fast devices running Async Direct I/O by up to 20% by optimizing jbd2_transaction_committed().”
I notice that this is from Huawei. If it was commercial software, this could not be used by anybody using US federal funding. Because this is Open Source, it will probably be put into use by the NSA, CIA, FBI, and NASA. Fascinating.