• [$] Hash table memory usage and a BPF interpreter bug

    From LWN.net@86:200/23 to All on Thu May 8 06:40:08 2025


    Anton Protopopov led a short discussion at the 2025 Linux Storage, Filesystem, Memory-Management, and BPF Summit about amount of memory used
    by hash tables in BPF programs. He thinks that the current memory layout is inefficient, and wants to split the structure that holds table entries into two variants for different kinds of maps. When that proposal proved uncontroversial, he also took the chance to talk about a bug in BPF's call instruction.

    https://lwn.net/Articles/1019667/
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