It depends on the workload. CPU bound? For sure. Fake CPU bound (as this one is, spending tons of time in go's concurrency machinery), clearly not. I/O bound

It depends on the workload. CPU bound? For sure. Fake CPU bound (as this one is, spending tons of time in go's concurrency machinery), clearly not. I/O bound? I would have said no before Spectre and Meltdown ruined all our intuitions about performance. It's just a mess right now.