Hi, AWS are touting ~20% lower cost and (potentially) increased performance for their own ARM-based line (cg6<x> instance family) compared to current-gen instances (c5 family).
Turns out that compiling a Python wheel for PyArrow on Amazon Linux 2 + Graviton is pretty straightforward, here's a gist I've created: https://gist.github.com/eladroz/b9437249a76de2b394d54e646d53ec5e My own (very non-comprehensive) test showed essentially similar performance to current-gen Intel, but the price difference alone is interesting and in big data workloads can be significant. Hope that helps anyone down the line; I'll probably try to run more benchmarks. Elad Rosenheim
