The end of the AArch64 desktop experiment

(juszkiewicz.com.pl)

30 points | by signa11 3 hours ago

6 comments

  • HerbManic 1 hour ago
    I'm not surprised at the outcome. These Ampere system single core/thread performance is pretty low and that is where you feel it. The OS/software simply cannot allocate the threads across enough cores effectively to make up for this difference.

    This is why things like the Apple M Series feels so fast, because while they don't win the multi core performance especially when going up against a 80 core beast like this, they have single thread performance exactly were it is needed.

    Maybe we will need 80 cores in future, that is cool but for daily home use it is still just way too much for what we need.

  • cmrdporcupine 5 minutes ago
    I use a DGX Spark every day as my daily driver and it's great. I barely use the "AI" facilities of it, but as an Aarch64 desktop Linux, I have no complaints.
  • rvz 25 minutes ago
    The AArch64 desktop experiment started in 2020 with the Macbook M1 and it ended in 2026 with great success with Apple phasing out support for Intel.

    It is called Apple Silicon.

    • preisschild 23 minutes ago
      Which is somewhat useless because it doesn't properly support ACPI/UEFI so that you can boot other operating systems
      • laurencerowe 5 minutes ago
        Wasn’t booting other operating systems supported from early on (two months after release of M1)? It was reverse engineering the graphics hardware that took time and effort.
      • boxed 6 minutes ago
        Linux on apple silicon is a thing though: https://asahilinux.org/
  • anthonj 42 minutes ago
    I see the problem, but I don't see a clear analysis on the actual source of the problem. I assumed the issue was mainly single core performance, but he is also suggesting context switches could be the cause?

    So could you fix that with a new scheduler? Or you just need another SoC with better single core performance? I could imagine that the latter already exists, just not in soc with >16 cores. My naive view is that such high core count system comes with tradoff on core size and interconnect/memeory bus complexity.

    And I mean.. my phone is a middle lower end device and for sure I can play youtube videos (maybe in a popup as well) and run the browser without noticing that much difference from my laptop.

    • KaiserPro 2 minutes ago
      I think the single core performance would be bearable if it wasn't combined with maintaining a custom built kernel.
  • __patchbit__ 3 hours ago
    Can the ThinkPad T14 ARM Snapdragon variant function without pain as a daily Linux/BSD driver?
    • sedatk 1 hour ago
      Snapdragon has excellent single-thread performance (unlike Ampere) if that’s what you’re asking.
    • izacus 45 minutes ago
      No. It can run Windows well though.
    • shevy-java 1 hour ago
      Without pain? I mean, there is pain when using Linux. It just works better than, say, Windows.
  • shevy-java 1 hour ago
    The Desktop Linux will take over from here guys. Next year it will be ready, together with GNU Hurd for everyone and their Grandma.
    • mort96 14 minutes ago
      Has anyone ever pretended that (non-Apple) ARM hardware running Linux makes for a remotely suitable desktop experience for the general public or are you shadow boxing here?