I still think you need to specify what latency are we talking about. Scheduling latency is about scheduling. Network interface latency is about putting data in the buffer and then on the wire. Network latency is about actually delivering the packet. Web page latency is about time-to-render. First few pages of google results about various types of latency always qualify it with some other word, so it&#x27;s not clear anymore what people mean if they just say &quot;latency&quot;.<p>These are all both durations in one context and latencies in another. For the app syscalls are &quot;how long did I have to wait for that call to give me a result&quot; so a latency and a duration as well. (just because it&#x27;s a period of time)