From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#57079: 29.0.50; Performance of seq-uniq is not very good Date: Tue, 09 Aug 2022 19:23:10 +0200 Message-ID: <87o7wtwcu9.fsf@gnus.org> References: <83tu6ltlcq.fsf@gnu.org> <87y1vxwe0y.fsf@gnus.org> <83k07htjxf.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6632"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 57079@debbugs.gnu.org, stefan@marxist.se To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Aug 09 19:24:13 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 1oLSxg-0001WG-SP for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 09 Aug 2022 19:24:12 +0200 Original-Received: from localhost ([::1]:34488 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oLSxf-0002jC-V1 for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 09 Aug 2022 13:24:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51074) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oLSxX-0002gs-7d for bug-gnu-emacs@gnu.org; Tue, 09 Aug 2022 13:24:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55051) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oLSxW-00055T-8Q for bug-gnu-emacs@gnu.org; Tue, 09 Aug 2022 13:24:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oLSxW-00036w-4N for bug-gnu-emacs@gnu.org; Tue, 09 Aug 2022 13:24:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 09 Aug 2022 17:24:02 +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=B57079.166006580111911 (code B ref 57079); Tue, 09 Aug 2022 17:24:02 +0000 Original-Received: (at 57079) by debbugs.gnu.org; 9 Aug 2022 17:23:21 +0000 Original-Received: from localhost ([127.0.0.1]:44800 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oLSwr-000362-5e for submit@debbugs.gnu.org; Tue, 09 Aug 2022 13:23:21 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:51940) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oLSwp-00035q-OA for 57079@debbugs.gnu.org; Tue, 09 Aug 2022 13:23:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:Date:References: In-Reply-To:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=zWAX/69G2yF6WPQnD7IXC6qn9jHbL9Ca+SSNw855isM=; b=W8Ov40c5WrNTAbPTwV2i+P+qFe HTm8NZes6FsTZhCBj9ZyX7YeTJqzOwf/cafjo7fJildkt4rHNtpsomVSTnPCt5pqXfKYMgVaR1j2R YjPjfZTQG8sNvkjBWt7tLPYtdKJodL/XkEOj9uHzRFBYQUKFpNgjeCZowbTB/KsAFn18=; Original-Received: from [84.212.220.105] (helo=joga) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oLSwh-0005wa-Ps; Tue, 09 Aug 2022 19:23:13 +0200 In-Reply-To: <83k07htjxf.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 09 Aug 2022 20:18:20 +0300") Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAGFBMVEVKM0NrTmCaYG+n d4bKo6bq1NL9/Pn///+7/GaRAAAAAWJLR0QHFmGI6wAAAAd0SU1FB+YICRA4NRy7jdwAAAGpSURB VDjLrZNR1pwgDIXDrIDo6QKA9r1jaJ/bMaxgxBVU97+E3qDO/5/qvPUej0fycQPEQNTkuihZTVOp 0KTEpj5jsO5a1gUjgF6kvKK7AHqBv16B3NKu/xJKivC8noEte5qPHRg4z4dIS72KL6SXcXNcZ1qp vHPUd4763vHfQC5vAGe9NFGe9JIglZX3fBj8KJx9ORPipBY9A9ej8OeqLHAgV/lMlhmpnwa0akE3 HZr0x5OZuDNLXetBljH0d9+aszVKa4mlzvW3tSa61rORMQ9Z5ymXSbxrcSgFTg9hzvXJ/d3mbn3u 0hAh776Od77pSIdclMC93jk+PH1Z/7wAcwpORyYXiH6WX0S36JEt4saEbmD27vadviXHUjSERHaR bK/2nmzfZVKR6ElkA3V724xRYuTm2K+dlnYLxyEGHEW2GzXXp+6CIbB/rVHHIyxD4N3RUqEmikdE WiaA3HKNg6BiYgod2zlSW0VHlNKiQ+w8W72Yu+ZBAEFs1BbeKsIBpDyCgZhexH5LwiISO9TYCn1Y DMWoGO/giDd2u3cNWBz6QK59Oj7k6C/EWzVZFfI3TwAAACV0RVh0ZGF0ZTpjcmVhdGUAMjAyMi0w OC0wOVQxNjo1Njo1MyswMDowMM69Sn4AAAAldEVYdGRhdGU6bW9kaWZ5ADIwMjItMDgtMDlUMTY6 NTY6NTMrMDA6MDC/4PLCAAAAAElFTkSuQmCC X-Now-Playing: Hood's _Cold House_: "Lines Low To Frozen Ground" 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:239176 Archived-At: Eli Zaretskii writes: >> 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. I didn't claim that seq-uniq will be faster than copy + delete-dups; I just said that it's unnecessarily slow.