A bundle of benchmarks measuring the performance of various fiber (lightweight thread, actor, coroutine, etc.) implementations for the JVM.

Benchmarks

• Ring: N spawned threads are connected in a ring structure.
  Through this ring a message (an integer) is circulated M times. (Adopted
  from the Performance Measurements of Threads in Java and Processes in
  Erlang
  article.)

Implementations

1. Standard Java Threads
2. Akka Actors
3. Quasar Fibers and Actors
4. Kilim Actors, Continuations, and Fibers
5. Project Loom Continuations and Fibers

Usage

You first need to build the necessary JMH fat JARs and then let the benchmark script do its job:

$ ./mvnw package
$ ./benchmark/benchmark.py

If you don't have a local JDK 11 installation, you can also use the shipped docker.sh to compile and run the benchmark in a Docker container:

$ ./docker.sh mvn-package
$ ./docker.sh benchmark

Results

For Oracle Java 1.8.0_121-b13 running on Intel(R) Core(TM) i3-2105 CPU @ 3.10GHz on Linux 4.4.0-137-generic x86_64 kernel:

Benchmark                                     Mode  Cnt     Score      Error  Units
AkkaActorRingBenchmark.ringBenchmark          avgt    4   614.755   151.874  ms/op
JavaThreadRingBenchmark.ringBenchmark         avgt    4  6126.367   304.880  ms/op
KilimActorRingBenchmark.ringBenchmark         avgt    4   611.655   128.317  ms/op
KilimContinuationRingBenchmark.ringBenchmark  avgt    4    45.544    11.303  ms/op
KilimFiberRingBenchmark.ringBenchmark         avgt    4   441.433    61.134  ms/op
QuasarActorRingBenchmark.ringBenchmark        avgt    4  2627.271  2114.870  ms/op
QuasarChannelRingBenchmark.ringBenchmark      avgt    4  1589.085   819.561  ms/op
QuasarDataflowRingBenchmark.ringBenchmark     avgt    4  1866.151   302.077  ms/op
QuasarFiberRingBenchmark.ringBenchmark        avgt    4   666.120   148.967  ms/op

Contributors

• Arek Burdach
• Jordan Sheinfeld
• nqzero

License

Copyright © 2014-2018 Volkan Yazc

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.