挑战使用现代C++从零构建高性能grep工具，并与ripgrep进行基准测试对比。
1. 摒弃std::regex，引入SIMD加速的vectorscan库
2. 深入Linux内核机制，实测mmap、splice与io_uring性能差异
3. 经历多线程架构重构与内存分配器调优全过程
最终在4GB数据上实现1.2秒搜索，仅落后ripgrep 80ms，硬核解析底层优化陷阱。
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原视频标题：Why Its So Hard To Write A Fast grep
原视频作者：Nathan Baggs
原视频链接：https://www.youtube.com/watch?v=UJ_W0O3sFnY
原视频发布时间：2026-08-19 03:00:38
原视频简介：Writing a fast grep
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Tools:
- Hyperfine - https://github.com/sharkdp/hyperfine
- ripgrep - https://github.com/burntsushi/ripgrep
- vectorscan - https://github.com/Vectorcamp/vectorscan
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