• [$] Faster page faults with RCU-protected VMA walks

    From LWN.net@1337:1/100 to All on Wed May 22 14:00:06 2024
    [$] Faster page faults with RCU-protected VMA walks

    Date:
    Wed, 22 May 2024 13:55:33 +0000

    Description:
    Looking up a virtual memory area (VMA) in a process's address space, for
    the handling of page faults or any of a number of other tasks, in multi-threaded processes has long been bedeviled by lock contention in the kernel. As a result, developer gatherings have been subjected to many
    sessions on how to improve the situation. At the 2024 Linux Storage, Filesystem, Memory-Management and BPF Summit , developers in the memory-management track met, in a session led by Liam Howlett, to talk
    about a situation that has improved considerably in recent times, but which still offers opportunities for optimization.

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    Link to news story:
    https://lwn.net/Articles/974392/


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