3 ms·
> I believe ag (the silver searcher) has also seen considerable performance improvements since 2016. Do you know what they are? I haven't noticed them, althoug
by burntsushi 8y ago
> I believe ag (the silver searcher) has also seen considerable performance improvements since 2016.
Do you know what they are? I haven't noticed them, although it has been a while since I've rigorously benchmarked it. From looking at the source code, I don't think much has changed. e.g., it appears to still be using memory maps on Linux when searching large directories.
- BeeOnRope 8y agoOut of curiosity, is there a better approach than memory maps?
- shaklee3 8y agoThe author goes over that here: https://blog.burntsushi.net/ripgrep/ https://blog.burntsushi.net/ripgrep/
- hungnmsu 8y agoUsing mmap is generally slower than reading chunk of data and mmap does not work well if you have to handle huge files with several GBs of text data. You can find performance benchmark results and a detail analysis from @burntsushi blog and Lemire's blog post (https://lemire.me/blog/2012/06/26/which-is-fastest-read-fread-ifstream-or-mmap/ https://lemire.me/blog/2012/06/26/which-is-fastest-read-frea...).