this post was submitted on 30 Nov 2023
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Yes, you can have too many CPU cores - Ampere's 192-core chips break ARM64 Linux kernel in two-socket systems, company requests higher core count support | Tom's Hardware (www.tomshardware.com)
submitted 2 years ago by stefenauris@pawb.social to c/tech@pawb.social
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Oops all cores

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[–] yote_zip@pawb.social 21 points 2 years ago (1 children)

I bet someone at some point said "256 is futureproof". We're well into Amdahl's Law at this point.

[–] infeeeee@lemm.ee 8 points 2 years ago

From the article:

Back in 2021, a patch was sent out proposing the ARM64 CPU core limit be increased to 512, but Linux maintainers denied it because no CPU hardware was available at the time with more than 256 cores.

[–] colourlesspony@pawb.social 20 points 2 years ago

These high power arm chips are really interesting. I feel like this is a good problem to have.