From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Dmitry Antipov Newsgroups: gmane.emacs.bugs Subject: bug#15555: Re: bug#15555: 24.3; Bidirectional display very slow with long lines Date: Tue, 18 Feb 2014 18:31:22 +0400 Message-ID: <53036EBA.4060104@yandex.ru> References: <83wqlo461e.fsf@gnu.org> <8338obskk4.fsf@gnu.org> <83iox6qt1t.fsf@gnu.org> <53035588.3080705@dev.rtsoft.ru> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1392733938 18689 80.91.229.3 (18 Feb 2014 14:32:18 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 18 Feb 2014 14:32:18 +0000 (UTC) Cc: 15555@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Feb 18 15:32:25 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1WFlii-0005Qi-5W for geb-bug-gnu-emacs@m.gmane.org; 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Tue, 18 Feb 2014 18:31:22 +0400 (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client certificate not present) X-Yandex-Uniq: 2f3394d4-2e2a-4c59-85d4-6b35ec338125 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1392733882; bh=UjK8I2hkRc1CDuCcgySH6oSg8ci8vYmArxWYFpMqzPg=; h=Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject: References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=taaefuEfDlFK33nvoXliVSq4LlfvaF6+BD1NpIg7NS1TnX5aY4dQ8Mj7erxb1E61H g2ef5flVYNjOVnILjOARh5NHJX30uEd95+dlGH6ZntDm90GkZ+vUC5dCL1HQCQeGj5 NZhpWziO5Qsq95rIp3ewYRtMBH6pAgW4vulMZrNc= Authentication-Results: smtp12.mail.yandex.net; dkim=pass header.i=@yandex.ru User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 In-Reply-To: X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:85816 Archived-At: On 02/18/2014 06:04 PM, Stefan Monnier wrote: > Eli's argument is not that bidi adds its own bottlenecks, but that there > are sufficiently other bottlenecks that there's not much point trying to > address bidi's bottlenecks until we start tackling the other ones. Now I'm seeing the use case where each trivial cursor movement causes ~100 calls to bidi_shelve_cache, and each call copies ~1.5M of data. If there is a redisplay problem which makes this unavoidable without rewriting 1/2 of xdisp.c, then "broken by design" is the only thing I can say about all of that mess. Dmitry