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#simulans — Public Fediverse posts

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  1. Profiled my JIT Rust aarch64 emulator:

    - Around 7-8% of time is spent executing translated guest code
    - #cranelift codegen takes 45.7% of time
    - its register allocator, regalloc, takes an additional 19%
    - Basic runtime logic such as MMU virtual address translation takes only 2% (with TLB caching)

    This results in taking almost 40 seconds to boot to Linux prompt. QEMU takes a few seconds.

    Replacing the JIT is tempting...

    #Rust #arm #arm64 #aarch64 #emulation #emulator #simulans