If you are regularly interested in "x became y percent faster" news, check out the vfs file updates from @brauner merged for #Linux 6.13:
'"Introduce a new reference counting mechanism for files. […] improvement up to 3-5% on workloads with loads of threads.
Add a fastpath for find_next_zero_bit(). […] This improves pts/blogbench-1.1.0 read by 8% and write by 4% on Intel ICX 160.
[…] improves pts/blogbench-1.1.0 read up to 13%, and write up to 5% on Intel ICX 160. […]"