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1. Embed this notice
   Jeff Geerling (geerlingguy@mastodon.social)'s status on Wednesday, 13-Nov-2024 05:26:22 JST Jeff Geerling

   M4 efficiency is stunning. First machine I've tested getting over 5 Gflops/W with HPL, and in fact it goes beyond 6 Gflops/W... with fan only spinning up to a quiet 2500 rpm.

   Maybe this is why Qualcomm abandoned their marquee Dev Kit—it is thoroughly trounced by M4.

   • Embed this notice
     pinskia (pinskia@hachyderm.io)'s status on Wednesday, 13-Nov-2024 05:26:20 JST pinskia

     in reply to

     • h3artbl33d :openbsd: :ve:

     @h3artbl33d @geerlingguy It is only v9.2 because of SME2. They don't even implement non-streaming SVE ....

   • Embed this notice
     h3artbl33d :openbsd: :ve: (h3artbl33d@exquisite.social)'s status on Wednesday, 13-Nov-2024 05:26:21 JST h3artbl33d :openbsd: :ve:

     in reply to

     @geerlingguy

     The Apple M4 SoC uses the ARMv9.2-A instruction set. I am way curious whether Apple did adapt the hardware extensions in recent versions like memory tagging (ARMv9.0-A introduced this).

   • Embed this notice
     pinskia (pinskia@hachyderm.io)'s status on Wednesday, 13-Nov-2024 05:48:46 JST pinskia

     in reply to

     • h3artbl33d :openbsd: :ve:

     @h3artbl33d @geerlingguy This was based on the LLVM patch which added m4 support.

   • Embed this notice
     h3artbl33d :openbsd: :ve: (h3artbl33d@exquisite.social)'s status on Wednesday, 13-Nov-2024 05:48:47 JST h3artbl33d :openbsd: :ve:

     in reply to

     • pinskia

     @pinskia @geerlingguy

     Oh damn... Do you know where I can find more in-depth information on this? Seems like Apple isn't exactly open about this.