Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

The end of my AArch64 desktop experiment

marcin.juszkiewicz.com.pl

Post reply on HN
Print view View original

1–10 of 89 posts

Re: The end of my AArch64 desktop experiment

#5

Post by HerbManic »

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.

Re: The end of my AArch64 desktop experiment

#7

Post by izacus »

__patchbit__ wrote: post #2

Can the ThinkPad T14 ARM Snapdragon variant function without pain as a daily Linux/BSD driver?

No. The driver support is very poor and won't run at all well.

Even. Setting it up is a pain: https://github.com/Jeremiah-Hawley/Linux-on-Snapdragon

It can run Windows well though.

Re: The end of my AArch64 desktop experiment

#8

Post by anthonj »

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.

Re: The end of my AArch64 desktop experiment

#10

Post by preisschild »

rvz wrote: post #9

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.

Which is somewhat useless because it doesn't properly support ACPI/UEFI so that you can boot other operating systems
Post reply on HN