Linux mm series reworks folio refcounts for read scalability
Optimistic increments replace CAS loops under contended IO; Linus has acked the core change while free-path races stay open.
By kexec#scalability
RFC shards procfs inode lists to cut lock storms on big boxes
Huang Shijie reports a 50% Hadoop speedup on a 384-CPU Hygon system after the global procfs inode lock fell from a 90% hotspot to about 1%.
By kexec