Performance Impacts of an Istio Service Mesh

Paul Klinker
7 min readJun 25, 2020
A pocket watch

For a while now, I’ve been curious about what impacts running a service mesh will have on the performance of my software. I’ve spoken with vendors who have estimated around a 10% performance hit, but I wanted to see for myself the actual impacts. Actually, it’s not just to satisfy my own curiosity, I’ve also had customers ask what the runtime penalty is, and would I recommend they run a service mesh. Some of our…

Paul Klinker

Paul is a Principal Engineer at ManTech specializing in DevOps and enterprise software development.