• [$] Improvements for the contiguous memory allocator

    From LWN.net@1337:1/100 to All on Wed Apr 16 16:15:06 2025
    [$] Improvements for the contiguous memory allocator

    Date:
    Wed, 16 Apr 2025 15:11:35 +0000

    Description:
    As a system runs, its memory becomes fragmented; it does not take long
    before the allocation of large, physically contiguous memory ranges becomes difficult or impossible. The contiguous memory
    allocator (CMA) is a kernel subsystem that attempts to address this
    problem, but it has never worked as well as some would like. Two sessions
    in the memory-management track at the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit looked at how CMA can be improved; the
    first looked at providing guaranteed allocations, while the second
    addressed some inefficiencies in CMA.

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    Link to news story:
    https://lwn.net/Articles/1016844/


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