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#48734: 28.0.50; Performance regression in `string-width`? Date: Mon, 31 May 2021 07:41:03 +0200 Message-ID: <87h7ijlats.fsf@gnus.org> References: <87a6odmfp6.fsf@teknik.io> <83o8cs4t9m.fsf@gnu.org> <87y2bwk1nj.fsf@teknik.io> <83eedo4k3j.fsf@gnu.org> <87v970jwik.fsf@teknik.io> <835yz04ean.fsf@gnu.org> <87r1hoza6z.fsf@gnus.org> <834kek4aai.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="40726"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: contact@imrankhan.live, 48734@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon May 31 07:42:10 2021 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 1lnagk-000ANl-LY for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 31 May 2021 07:42:10 +0200 Original-Received: from localhost ([::1]:36878 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lnagj-00023i-OY for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from cm-84.212.220.105.getinternet.no ([84.212.220.105] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lnafg-0005we-DV; Mon, 31 May 2021 07:41:06 +0200 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAG1BMVEUWEhJEOztlW1qG eneMgHzQw7+ompgsJib///9RCNRGAAAAAWJLR0QIht6VegAAAAd0SU1FB+UFHwUdOJti/kEAAAGB SURBVDjLlZLNUoMwEMeDOubKojNcJTjj1YGOD9AyvEE5Oy3Ea9bLvr7ZTUhbpH78Lwn7y36jVGYW atvWPCml7gbrNe0v9O7BjRX5r4gP9ji9JjAJkOPQW8uhbgUMU4woh4AY6lKXoOskGTuugGkFjLGK YT2HpP9j8iUY/g2uhfJjb/s1oJRGMPVbsPiRjb7PXCVpAihMUTe8q8axxWlSJMICvIoKDIMMkubl Ajipatx+NiFEUgD247zkbtN3uzxsMOcm4+7suOl2Au73+zwzddtJM/3o17INyTkiXxT6eoBTv6gf pQmdIkdYPR4qIOR+KFFCKOpW1ts82zgSlP4B0Gz4Bxv6NESf2vlo3qt6aIQec8lBbPUHcWG1qWvT MsgqKLXYS/+EV9A0RjxKQgSKcvwAIY4doZQiifjCjwSUyCHkvQwfZwDhoBmVyUMsM4mppEEh0ceF I4yDUtTZpNUpuO9kOV4X/egbUYlcYyH27zrz16GB9BUb0os0p1ZPtx/0BRDzCCYXISHNAAAAJXRF WHRkYXRlOmNyZWF0ZQAyMDIxLTA1LTMxVDA1OjI5OjU2KzAwOjAwSqpf2wAAACV0RVh0ZGF0ZTpt b2RpZnkAMjAyMS0wNS0zMVQwNToyOTo1NiswMDowMDv352cAAAAASUVORK5CYII= X-Now-Playing: Scorn's _Cafe Mor_: "Mugwump Tea Room" In-Reply-To: <834kek4aai.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 30 May 2021 16:32:21 +0300") 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:207663 Archived-At: Eli Zaretskii writes: > FWIW, I did measure the speed after the change, and saw only something > like 10% slowdown for strings with composable characters. Maybe my > tests were skewed, or maybe there are other use cases I didn't think > about. Yes, Imran's test case here was very synthetic -- Imran, what does the actual strings in deft where you see these slowdowns look like? Do you have some examples you can share? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no