An ARM based server almost sounds like an oxymoron.
Amusingly #2, #3, and #4 aren't x86-64 either. Number 5 is, but mainly because the xeons are handling I/O for the real heavy lifting on the matrix-2000 accelerators. The first pure x86-64 cluster is #8.
So the performance story is changing quickly, and arm is just getting started.
https://top500.org/news/japan-captures-top500-crown-arm-powe... (June 2020)
> The new top system, Fugaku, turned in a High Performance Linpack (HPL) result of 415.5 petaflops, besting the now second-place Summit system by a factor of 2.8x.
> Fugaku is powered by Fujitsu’s 48-core A64FX SoC, becoming the first number one system on the list to be powered by ARM processors. In single or further reduced precision, which are often used in machine learning and AI applications, Fugaku’s peak performance is over 1,000 petaflops (1 exaflops).
> The new system is installed at RIKEN Center for Computational Science (R-CCS) in Kobe, Japan.
When next generation Mac Mini with Apple Silicon comes out, data centers using that would be running Apple Server packages on that.
In fact I've been running my production applications on ARM servers for ~a year and it has resulted in greater capital efficiency.
I've been using Pi 2 with USB storage as a publicly hosted git server for over 5 years used by multiple users.
https://smile.amazon.com/gp/product/B07VWM4J4L/ref=ppx_yo_dt...
Should solve the problem. :)