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https://github.com/trungams/http-server
A simple HTTP/1.1 server implementation in C++
https://github.com/trungams/http-server
Last synced: about 1 month ago
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A simple HTTP/1.1 server implementation in C++
- Host: GitHub
- URL: https://github.com/trungams/http-server
- Owner: trungams
- License: mit
- Created: 2020-08-20T05:46:20.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2023-03-06T03:24:23.000Z (almost 2 years ago)
- Last Synced: 2023-03-08T18:42:51.726Z (almost 2 years ago)
- Language: C++
- Homepage:
- Size: 20.5 KB
- Stars: 46
- Watchers: 5
- Forks: 15
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Simple HTTP/1.1 server
Implementation of a simple HTTP server in C++
## Features
- Can handle multiple concurrent connections, tested up to 10k.
- Support basic HTTP request and response. Provide an extensible framework to implement other HTTP features.
- HTTP/1.1: Persistent connection is enabled by default.
## Quick start
```bash
mkdir build && cd build
cmake ..
make
./test_SimpleHttpServer # Run unit tests
./SimpleHttpServer # Start the HTTP server on port 8080
```
- There are two endpoints available at `/` and `/hello.html` which are created for demo purpose.
- In order to have multiple concurrent connections, make sure to raise the resource limit (with `ulimit`) before running the server. A non-root user by default can have about 1000 file descriptors opened, which corresponds to 1000 active clients.
## Design
The server program consists of:
- 1 main thread for user interaction.
- 1 listener thread to accept incoming clients.
- 5 worker threads to process HTTP requests and sends response back to client.
- Utility functions to parse and manipulate HTTP requests and repsonses conveniently.
## Benchmark
I used a tool called [wrk](https://github.com/wg/wrk) to benchmark this HTTP server. The tests were performed on my laptop with the following specs:
```bash
Model: Thinkpad T480
OS: Ubuntu 18.04 TLS x84_64
Kernel: 4.18.0-24-generic
CPU: Intel i7-8550 (8) @ 4.000 GHz
GPU: Intel UHD Graphics 620
Memory: 6010 MiB / 15803 MiB
```
Here are the results for two test runs. Each test ran for 1 minute, with 10 client threads. The first test had only 500 concurrent connections, while the second test had 10000.
```bash
$ ./wrk -t10 -c500 -d60s http://0.0.0.0:8080/
Running 1m test @ http://0.0.0.0:8080/
10 threads and 500 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 5.01ms 1.31ms 57.86ms 86.35%
Req/Sec 9.94k 0.99k 36.28k 76.69%
5933266 requests in 1.00m, 441.36MB read
Requests/sec: 98760.82
Transfer/sec: 7.35MB
```
```bash
$ ./wrk -t10 -c10000 -d60s http://0.0.0.0:8080/
Running 1m test @ http://0.0.0.0:8080/
10 threads and 10000 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 111.78ms 21.38ms 403.80ms 76.79%
Req/Sec 8.73k 1.42k 18.77k 75.62%
5174508 requests in 1.00m, 384.91MB read
Requests/sec: 86123.84
Transfer/sec: 6.41MB
```