From nobody Tue Jun 01 10:25:08 2021 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id B14A8DFAC3E for ; Tue, 1 Jun 2021 10:25:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FvSw44ZWHz4f5B for ; Tue, 1 Jun 2021 10:25:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 84EC5219F4 for ; Tue, 1 Jun 2021 10:25:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 151AP8Ti039815 for ; Tue, 1 Jun 2021 10:25:08 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 151AP8nj039814 for bugs@FreeBSD.org; Tue, 1 Jun 2021 10:25:08 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 254763] grep very slow with 13.0-RC4 Date: Tue, 01 Jun 2021 10:25:08 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 13.0-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: parv.0zero9+freebsd@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254763 --- Comment #9 from parv --- 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=3D223553 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), https://github.com/ggreer/the_silver_searcher; - 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. --=20 You are receiving this mail because: You are the assignee for the bug.=