Java uses epoll for NiO Processing

Java uses epoll for NiO Processing

NIO of JDK 6.0 and JDK 5.0 Update 9 supports epoll (Linux only), which greatly improves the performance of concurrent idle connections, which is required by many network server applications.

The method for enabling is as follows:

-Djava. NiO. channels. SPI. selectorprovider = sun. NiO. Ch. epollselectorprovider

For example, if Tomcat running in Linux uses NiO connector, enabling epoll will help improve performance.

Tomcat needs to enable this option by adding the following line at the beginning of Catalina. Sh.

Catalina_opts = '-djava. NiO. channels. SPI. selectorprovider = sun. NiO. Ch. epollselectorprovider'