# ringbuffer2

**Repository Path**: liudegui/ringbuffer2

## Basic Information

- **Project Name**: ringbuffer2
- **Description**: 优化jnk0le/Ring-Buffer
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2024-12-24
- **Last Updated**: 2025-04-29

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

来自：https://github.com/jnk0le/Ring-Buffer
## 优化要点概述

+ 减少原子操作次数：将多次加载的原子变量存储在局部变量中，避免重复加载。
+ 优化内存屏障：使用 std::atomic_thread_fence 替代 std::atomic_signal_fence，确保正确的内存顺序。
+ 合并重复代码：使用内部辅助模板函数来合并重复的 insert 和 remove 操作。
+ 批量数据操作：在 writeBuff 和 readBuff 中使用 std::memcpy 进行批量数据传输，提升缓存利用率和数据传输效率。
+ 避免伪共享：通过填充结构体，确保 head 和 tail 位于不同的缓存行中。
+ 内存对齐：确保 data_buff 按缓存行对齐，提高缓存命中率。
+ 内联小函数：将小型函数内联，减少函数调用开销。
+ 使用更高效的数据类型：根据需求调整 index_t 的类型，确保其大小与性能需求匹配。

## 执行结果

```.sh
$ ./example.sh                                                                                                                           
Inserted: 0
Inserted: 1
Inserted: 2
Inserted: 3
Inserted: 4
Inserted: 5
Inserted: 6
Inserted: 7
Inserted: 8
Inserted: 9
Buffer is Not Empty
Buffer is Not Full
Removed: 0
Removed: 1
Removed: 2
Removed: 3
Removed: 4
Removed: 5
Removed: 6
Removed: 7
Removed: 8
Removed: 9
Inserted: 100
Peeked Value: 100
Element at index 0: 100
```



```.sh
$ ./test.sh                                                                          
Starting Functional Test...
Buffer correctly identified as full.
Buffer correctly identified as empty.
Functional Test Passed.
Starting Performance Test...
Inserted and Removed 1000000 elements in 0.00361691 seconds.
Throughput: 2.76479e+08 operations per second.
Starting High Frequency Test...
High Frequency Test: Inserted and Removed 10000000 elements in 0.0404424 seconds.
Throughput: 2.47265e+08 operations per second.
```