From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#57079: 29.0.50; Performance of seq-uniq is not very good Date: Tue, 09 Aug 2022 20:18:20 +0300 Message-ID: <83k07htjxf.fsf@gnu.org> References: <83tu6ltlcq.fsf@gnu.org> <87y1vxwe0y.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="38599"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 57079@debbugs.gnu.org, stefan@marxist.se To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Aug 09 19:22:36 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oLSw8-0009sh-6j for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 09 Aug 2022 19:22:36 +0200 Original-Received: from localhost ([::1]:60638 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oLSw7-0001Bl-7U for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 09 Aug 2022 13:22:35 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49984) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oLSsg-0006yq-6i for bug-gnu-emacs@gnu.org; Tue, 09 Aug 2022 13:19:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55029) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oLSsf-0004Eb-Tw for bug-gnu-emacs@gnu.org; Tue, 09 Aug 2022 13:19:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oLSsf-0002xh-Qn for bug-gnu-emacs@gnu.org; Tue, 09 Aug 2022 13:19:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 09 Aug 2022 17:19:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 57079 X-GNU-PR-Package: emacs Original-Received: via spool by 57079-submit@debbugs.gnu.org id=B57079.166006551911356 (code B ref 57079); Tue, 09 Aug 2022 17:19:01 +0000 Original-Received: (at 57079) by debbugs.gnu.org; 9 Aug 2022 17:18:39 +0000 Original-Received: from localhost ([127.0.0.1]:44778 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oLSsJ-0002x6-49 for submit@debbugs.gnu.org; Tue, 09 Aug 2022 13:18:39 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:37020) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oLSsH-0002wt-Bx for 57079@debbugs.gnu.org; Tue, 09 Aug 2022 13:18:37 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:43776) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oLSsB-0004Bk-RQ; Tue, 09 Aug 2022 13:18:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=DWOJx7272S53PV6/s3ssHbAeDgytxbOsJy+rS5c7tqE=; b=pXB0tIFHDUdd wdCOSy09HShvDFnNAAdKdpxj69EiK0hbMuMU4ef3si/WehxNodOe+GE3WfQ7siAyxNVxTTimNtxIn vmt/qt1hjBO2A5xmOuSwTZAAb64MEQ7+fkNpBGt5Ukm1CXERD7vnkgSgsD+IAOeh5YzlHjMTnKjyl 7qQHOTX5UKXEC3kY7IJEeSCWic0+krWNwNeAM6Dyqq3TsZ7IvQ+0zsx5CIME9k8iUp+lBzgIKmUEQ cxyU+HDmZZzsNjXF/tQjaQhfhfaiy/KwDEGipFWdRsJC/zSAOorveRce1SxxLf0aZw+7c6/KJUs5G 1JUjUY5KzyAt8SHAT3d9HA==; Original-Received: from [87.69.77.57] (port=4098 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oLSsB-00029V-BG; Tue, 09 Aug 2022 13:18:31 -0400 In-Reply-To: <87y1vxwe0y.fsf@gnus.org> (message from Lars Ingebrigtsen on Tue, 09 Aug 2022 18:57:33 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:239175 Archived-At: > From: Lars Ingebrigtsen > Cc: Stefan Kangas , 57079@debbugs.gnu.org > Date: Tue, 09 Aug 2022 18:57:33 +0200 > > Eli Zaretskii writes: > > > What's wrong with using delete-dups for your cases above? > > delete-dups is destructive. You can copy the list first, of course, but > seq-uniq should be much faster than it is. How much faster? Using copy-sequence and delete-dups is 7 times faster here than seq-uniq and twice faster than gnus-delete-duplicates.