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I think by control you mean observability? I get that they're different, but the whole point is optimization here. They're not gathering performance metrics ju
by dataflow 2y ago
I think by control you mean observability?
I get that they're different, but the whole point is optimization here. They're not gathering performance metrics just to hang them up on a wall and marvel at the number of decimal points, right? They presumably invested all the effort into this infrastructure because they think this much precision has significant ROI on the optimization side.
- jacques_chester 2y agoI'm using "control" in the statistical process control sense, where it means "we can tell if variation is ordinary or extraordinary". To me it seemed clear that the paper is about detecting regressions, which is control under my definition above. I still think of that as distinct from optimization.
- joshuamorton 2y agoRight, but what is the point of optimizing? It often isn't to make things go faster for an individual user (often times the driving factor of latency is not computation, but inter-system rpc latency, etc.). The value is to bin-pack processing more requests into the same bucket of CPU. That can have latency wins, but it may not in a lot of contexts.