The Role of Stationarity in Reliable Service Delivery

I think that it's really important to start with a core definition of what it is we're talking about when we say that a service is reliable. So the definition that we've begun to use is a combination of effectively stationarity, right? Customers expect that they continue to get the service that they got yesterday. If they send you an RPC and it took roughly 300 milliseconds yesterday, it will probably take about 300 milliseconds today. And I think that this approach gives a different way of looking through systems or looking at the behavior of systems.