Java & Python Porting Test

This repository aims to test the following ways for communicating a Python process from a Java process:

• Sub-process standard input/output
• TCP Connections

Project Structures

• python
  • fork-estimate.py: the Python script for the sub-process test
  • tcp-server.py: the Python script for the TCP connection test
• java: a Eclipse project that contains the code for benchmarking and all the connectors

How to Run?

Sub-process Test

To run the sub-process test, launch the Java process with the following configuration:

• Main Class: slmt.porttest.MainClass
• Program Arguments: 1 [Sending Times] [Python Path] [Script Dir]
  • [Sending Times]: how many times the process sends a message to the Python process
  • [Python Path]: where the Python runtime is
  • [Script Dir]: where the script to test is (which is usually ../python)

TCP Connection Test

To run the TCP connection test, you must first launch the Python server by running python tcp-server.py.

Then, launch the Java process with the following configuration:

• Main Class: slmt.porttest.MainClass
• Program Arguments: 2 [Sending Times] "" ""
  • [Sending Times]: how many times the process sends a message to the Python process

Reference Result

Here is the result of a test running on the following environment:

• Hardware: Intel(R) Core(TM) i7-6900K CPU @ 3.20GHz
• OS: CentOS 7 (3.10.0-1160.41.1.el7.x86_64)
• Java: 1.8.0_302
• Python: 3.7.11

After running each method in a test with 1,000,000 message exchanges, we got the following result:

Methods	Sub-process	TCP Connection
Avg. Latency	14 μs	24 μs

License

Copyright 2022 Yu-Shan Lin

Licensed under MIT License