For those unaware, istio is a service mesh. In short, it "manages" your micro-services. Eg. How they connect together and much much more. Look at what it does

For those unaware, istio is a service mesh. In short, it "manages" your micro-services. Eg. How they connect together and much much more. Look at what it does and you will see the overhead of what people don't mention in the first talk :p In a way, I think Istio is the opposite of a microservice ( didn't look at the code, but I see 840 issues in the github repository)