• [$] Improving the merging of anonymous VMAs

    From LWN.net@1337:1/100 to All on Mon Mar 31 23:30:08 2025
    [$] Improving the merging of anonymous VMAs

    Date:
    Mon, 31 Mar 2025 22:26:56 +0000

    Description:
    The virtual memory area (VMA), represented by struct
    vm_area_struct , is one of the core abstractions of the kernel's memory-management subsystem; a VMA represents a portion of a process's
    address space with the same characteristics. A memory-mapped file will be represented by (at least) one VMA, as will the process's stack or a region
    of anonymous memory. Efficiently managing VMAs and the logic around them
    is crucial for good performance overall. Lorenzo Stoakes focused on one specific problem area: the merging of anonymous VMAs, during the memory-management track at the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit.

    ======================================================================
    Link to news story:
    https://lwn.net/Articles/1015762/


    --- Mystic BBS v1.12 A47 (Linux/64)
    * Origin: tqwNet UK HUB @ hub.uk.erb.pw (1337:1/100)