# io_uring-echo-server

**Repository Path**: anolis/io_uring-echo-server

## Basic Information

- **Project Name**: io_uring-echo-server
- **Description**: echo server 是一个经典的用于评估网络性能的测试套件，多个客户端并发地向服务端发送固定长度消息，服务端收到消息后直接将消息原样返回给客户端。echo server 本身也是一种经典的网络编程模型，redis，nginx 等基本都是采用此编程模型。
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: https://openanolis.cn/sig/high-perf-storage/doc/218455838343036973
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2021-11-18
- **Last Updated**: 2023-10-10

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# io_uring bare minimum echo server
* uses an event loop created with io_uring
* uses liburing HEAD https://github.com/axboe/liburing
* __Linux 5.7 or higher with IORING_FEAT_FAST_POLL and IORING_OP_PROVIDE_BUFFERS required__


## Install and run
`make liburing`

`make io_uring_echo_server`

`./io_uring_echo_server [port_number]`

## compare with epoll echo server
https://github.com/frevib/epoll-echo-server


## Benchmarks
https://github.com/frevib/io_uring-echo-server/blob/io-uring-feat-fast-poll/benchmarks/benchmarks.md



## Versions

### v1.6
* Use IORING_OP_PROVIDE_BUFFERS

### v1.5
* Use IORING_FEAT_FAST_POLL, which increases performance a lot
* Remove all polling, this is now handled by IORING_FEAT_FAST_POLL

### v1.4
Fix bug that massively overstated the performance.

### v1.3
Use pre-allocated `sqe->user_data` instead of dynamically allocating memory.

### v1.1
Fix memory leak.

### v1.0
Working release.