Efficient and Reliable Fine-Grained NUMA Migration in User-space

Felix Schuhknecht and Nick Rassau have posted a new arXiv paper (arXiv:2602.05540) on 5 Feb 2026 proposing a user-space page migration method named page_leap().

• Main announcement: The authors introduce page_leap(), a user-space, actively triggered page migration method that they claim can perform asynchronous high-performance migration, ensure eventual migration of all pages, handle concurrent writes, support pooled memory, adapt migration granularity to workload, and support small and huge pages. The paper was submitted to arXiv on 5 Feb 2026 (v1) and is available as PDF/HTML/TeX (arXiv:2602.05540).
• Background and details: page_leap() is presented as an alternative to the Linux kernel’s automatic NUMA balancing and the move_pages() system call; the paper includes implementation and evaluation details (PDF and TeX source available) and is released under a Creative Commons BY-NC-SA 4.0-style license (license link on arXiv).