https://github.com/tx7do/test_std_atomic

https://github.com/tx7do/test_std_atomic

Last synced: about 1 month ago
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• Host: GitHub
• URL: https://github.com/tx7do/test_std_atomic
• Owner: tx7do
• License: mit
• Created: 2022-12-16T03:19:44.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-12-16T09:50:04.000Z (over 3 years ago)
• Last Synced: 2025-01-02T05:32:12.459Z (over 1 year ago)
• Language: C++
• Size: 4.88 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# 测试std::atomic

| 类型  | 结果       | 耗时         |

|-----|----------|------------|

| 不加锁 | 无        | 无          |

| 加锁  | 10000000 | 1157.28 ms |

| 原子  | 10000000 | 223.048 ms |

不加锁根本没有办法完成，Crash了。

使用原子操作明显比加锁操作要效率高。

## 参考资料

- [std::atomic 用法與範例](https://shengyu7697.github.io/std-atomic/)

- [C++11中的原子操作（atomic operation）](https://blog.csdn.net/yockie/article/details/8838686)