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Performance Issues with Envoy #5536
Benchmarking Envoy and comparing performance against HAProxy
Could you please point out where am I going wrong? (As according to various online blogs, envoy seems to provide equivalent performance as HAProxy)
I just ran a quick test and got similar results. I ran a CPU profiler on Envoy during the test, and it highlighted part of the reason for the performance difference: wrk uses HTTP/1.1, and Envoy uses a relatively CPU-intensive HTTP/1 parser. HTTP/1 parser performance is a longstanding issue; #2880 has some context.