The main thing is that rr recording needs access to the PMU. So generally AWS Nitro instances which occupy a whole CPU socket (or more than one) work. In partic

The main thing is that rr recording needs access to the PMU. So generally AWS Nitro instances which occupy a whole CPU socket (or more than one) work. In particular AWS c5(d).9xlarge and larger are known to work. Other instance types (including metal instances) should work too.