GNU bug report logs - #21763
poor performance since grep 2.19 when comparing files with grep

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Package: grep;

Reported by: "Bennett, Steve" <S.Bennett <at> lancaster.ac.uk>

Date: Mon, 26 Oct 2015 14:19:03 UTC

Severity: normal

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Norihiro Tanaka <noritnk <at> kcn.ne.jp>
Cc: 21763-done <at> debbugs.gnu.org, 22357-done <at> debbugs.gnu.org, sur-behoffski <sur_behoffski <at> grouse.com.au>, "L.A. Walsh" <law <at> tlinx.org>, JQK <jquan <at> redhat.com>, 22239 <at> debbugs.gnu.org, Trevor Cordes <gnu <at> tecnopolis.ca>, Bruno Haible <bruno <at> clisp.org>, Ond?ej Cifka <ondra <at> cifka.com>
Subject: bug#21763: bug#22239: bug#22357: grep -f not only huge memory usage, but also huge time cost
Date: Tue, 27 Dec 2016 22:37:25 -0800

Norihiro Tanaka wrote:
> So I wrote the patch to use fgrep matcher for both.

Thanks, I installed that after tweaking the commit message and omitting 
unnecessary parens.
This bug report was last modified 8 years and 148 days ago.

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