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 11 months ago by stefenauris@pawb.social to c/tech@pawb.social
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Oops all cores

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[โ€“] yote_zip@pawb.social 0 points 11 months ago (1 children)

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

[โ€“] infeeeee@lemm.ee 1 points 11 months 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.