nio-benchmark

Benchmark of Java NIO echo server using JMH

The benchmark runs the same client code against various servers.

Client

The client main is nio.JMHClientMain with the optional arguments:

• threads=<number> determines the number of clients initialized (defaults to 1)
• cycles=<number determines the number of JMH iterations (defaults to 25)
• print=<boolean> if true, console will print the echo of client/server (defaults to false)

Server

The server implementations available:

• nio.ReadInSelectorServer
• nio.ReadInTaskServer
• netty.NettyServer

Both nio servers accept the following optional args:

• poolType=<String> - determines which thread pool will be used. possible values:

  • fixed - fixed thread pool
  • work-stealing - fork/join pool
  • dynamic - Gigaspaces custom thread pool impl
  • default is fixed

• poolSize=<number> - determines the pool size (defaults to 4)

How to run

• run mvn install

• Start server:

  java -cp target/nio-benchmark-1.0-SNAPSHOT-jar-with-dependencies.jar nio.ReadInSelectorServer poolType=work-stealing poolSize=8

• Start client:

  java -cp target/nio-benchmark-1.0-SNAPSHOT-jar-with-dependencies.jar nio.JMHClientMain threads=2 cycles=10 print=true

Output

The client main will output a standard JMH output of average TP