For me personally, it's the jump from c5d.4xlarge (16 core) to c5d.9xlarge (36 core) that's a bit hard to work around, but there are surely others.
For me personally, it's the jump from c5d.4xlarge (16 core) to c5d.9xlarge (36 core) that's a bit hard to work around, but there are surely others.