Are those ARM-based instances fast enough? Last I tried, Oracle Cloud's free tier "AMD" instances (with 1/8 vCPU) were so slow that I could not use them for any useful applications. Even their network speed was slow.
"The Altra’s strengths lie in compute-bound workloads where having 25% more cores is an advantage. The Neoverse-N1 cores clocked at 3.3GHz can more than match the per-core performance of Zen2 inside the EPYC CPUs.
There are still workloads in which the Altra doesn’t do as well – anything that puts higher cache pressure on the cores will heavily favours the EPYC as while 1MB per core L2 is nice to have, 32MB of L3 shared amongst 80 cores isn’t very much cache to go around."
