Why native epoll support is introduced in Netty?

Question

I believe Java\'s NIO library will use epoll on Linux machines. What are all the advantages of using Epoll instead of NIO on Linux machines.

Answer 1

There are some information about this in netty's docs:

Netty provides the following platform specific JNI transports:

Linux (since 4.0.16)
MacOS/BSD (since 4.1.11)

These JNI transports add features specific to a particular platform, generate less garbage, and generally improve performance when compared to the NIO based transport.