Envoy vs linkerd: What are the differences?
What is Envoy? C++ front/service proxy. Originally built at Lyft, Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures.
What is linkerd? Twitter-Style Operability for Microservices. linkerd is an out-of-process network stack for microservices. It functions as a transparent RPC proxy, handling everything needed to make inter-service RPC safe and sane--including load-balancing, service discovery, instrumentation, and routing.
Envoy can be classified as a tool in the "Load Balancer / Reverse Proxy" category, while linkerd is grouped under "Microservices Tools".
Envoy and linkerd are both open source tools. Envoy with 10.2K GitHub stars and 1.58K forks on GitHub appears to be more popular than linkerd with 5.02K GitHub stars and 501 GitHub forks.