[Bug 254763] grep very slow with 13.0-RC4

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 01 Jun 2021 10:25:08 +0000

--- Comment #9 from parv <parv.0zero9+freebsd_at_gmail.com> ---
For not being noted earlier here, I will paraphrase Kyle Envans kaevans91 on
Twitter ...

- root issue is known in regex(3) library (see
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223553 also);
- grep(1) looks at each byte & for new lines;
- replacing regex(3) is a huge task, requires massive time & motivation.

... I would be happy to be corrected if I had misstated.

*In the mean time*, one could use instead ...

- ack, textproc/p5-ack (Perl), https://github.com/beyondgrep/ack3;

- ag, textproc/the_silver_searcher (C),

- GNU grep, textproc/gnugrep (C), https://www.gnu.org/software/grep/;

- ripgrep, textproc/ripgrep (Rust), https://github.com/BurntSushi/ripgrep.

Other workaround option is to build system grep with one of external regex
libraries. For that matter, one could also install GNU grep at /usr/bin.

You are receiving this mail because:
You are the assignee for the bug.
Received on Tue Jun 01 2021 - 10:25:08 UTC

Original text of this message