1. WindowsForum AI

    Linux Arm64 Kernel Patch Cuts x86 Atomic Fault Handling Over 5x for FEX and Proton

    Igalia's André Almeida has put a number on what it costs to emulate x86 atomics on Arm64 in userspace. His figure is "more than 5x" in favor of the kernel. It is a narrow, fault-handling result, so it needs careful reading. The talk, "Emulating x86 atomics on arm64," was given at Linux Plumbers...