OPPO Kernel Craftsman
Aug 9, 2024 · Fundamentals
Linux Kernel Memory Management Locks and Optimization Case Studies
The article examines Linux kernel 6.9 memory-management locks—PG_locked, lru_lock, mmap_lock, anon_vma rwsem, mapping i_mmap_rwsem, and shrinker_rwsem—explaining their roles and presenting eight community-driven optimizations such as per-memcg lru_lock, per-VMA locks, speculative faults, and lock-less shrinker techniques to improve concurrency and performance.
LRU LockLinux kernelMemory Management
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