[Bug 254763] grep very slow with 13.0-RC4

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 27 Jun 2022 04:59:42 UTC

Tatsuki Makino <tatsuki_makino@hotmail.com> changed:

           What    |Removed                     |Added
                 CC|                            |tatsuki_makino@hotmail.com

--- Comment #17 from Tatsuki Makino <tatsuki_makino@hotmail.com> ---
(In reply to Matteo Riondato from comment #15)

If this still occurs with /usr/bin/bsdgrep in 12.x, I think this is a

However, I continue to feel that in 12.3-STABLE the performance of concurrent
storage usage by multiple processes has been poor...

> /usr/bin/time -l cat access_log.txt | grep -F -v -f exclude_ips.txt > output.log
                        |                                                \__
                         \__ reading

Thus, this is reading and writing at the same time.
Doesn't it matter?

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