High-Performance Java NIO Web Server

This is a lightweight and efficient web server built from scratch using Java NIO (Non-blocking I/O). The server is designed to handle multiple concurrent client connections using a selector-based event-driven architecture and a thread pool for request processing.

Benchmarking with wrk

To measure the server's performance, we used wrk, a high-performance HTTP benchmarking tool. Below are the results of a 30-second test with 12 threads and 400 connections:

Benchmarking Command:

wrk -t12 -c400 -d30s http://127.0.0.1:8080/index.html

Results:

Running 30s test @ http://127.0.0.1:8080/index.html
  12 threads and 400 connections
  Thread Stats   Avg      Stdev     Max  +/- Stdev
    Latency      74.34ms  161.29ms  1.94s  85.71%
    Req/Sec      17.06k   11.59k    60.31k   66.99%
  352,359 requests in 30.10s, 571.22MB read
  Requests/sec:  117,054.81
  Transfer/sec:  18.98MB
  Socket errors: connect 0, read 1, write 0, timeout 286

Key Metrics:

• Average Requests per Second: 117,054.81
• Peak Requests per Second: 60.31k per thread
• Latency: 74.34ms (avg)
• Total Requests Processed: 352,359 in 30s
• Data Transferred: 571.22MB

These results demonstrate the efficiency of this Java-based web server in handling high-concurrency workloads.

Benchmarking Screenshot:

How to Run

1. Clone the repository:

   git clone https://github.com/Sabbir0074/WebServerUsingJava.git
   cd WebServerUsingJava

2. Compile and run the server:

   javac WebServer.java
   java WebServer

3. The server will start listening on port 8080.

Future Enhancements

• Support for HTTPS (TLS)
• Improved request parsing and support for RESTful APIs
• Logging and monitoring tools integration

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🚀 Happy Coding!