From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stephen Berman Newsgroups: gmane.emacs.bugs Subject: bug#56682: Fix the long lines font locking related slowdowns Date: Wed, 10 Aug 2022 13:59:45 +0200 Message-ID: <877d3gwbpq.fsf@gmx.net> References: <83h72qzheq.fsf@gnu.org> <25717d84-3411-a93a-3620-e04fe0571aff@yandex.ru> <83edxuzemr.fsf@gnu.org> <83a68hzz0a.fsf@gnu.org> <6ae35c93062c589b2e02@heytings.org> <7b7fbad7-55ac-49b8-840f-7f89a7e8771a@yandex.ru> <6ae35c93064b3588974c@heytings.org> <6ae35c9306c515f420d8@heytings.org> <87k07gwkjq.fsf@gmx.net> <87fsi4wiel.fsf@gmx.net> <837d3gs4p0.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9892"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 56682@debbugs.gnu.org, Gregory Heytings , monnier@iro.umontreal.ca, dgutov@yandex.ru To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Aug 10 14:02:19 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 1oLkPj-0002QG-C1 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Wed, 10 Aug 2022 13:59:47 +0200 In-Reply-To: <837d3gs4p0.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 10 Aug 2022 14:44:59 +0300") X-Provags-ID: V03:K1:LUTqeokv2KJxPRVcdzxdkU9UdcKCrIco/KBO2QCKP2f4x+To1h7 vCkNuYeQ1x5OPMZ5vSORyT6FMFUT0BBEGr2G1E3rOvZrCS4ykJPVin/8ONX3HDmt94pFFDx cqART8P/X2mFdd++5EQAB02K3k+8ZERCIhwOwQvRc1TxEV6LwXUWkucKCkBS4LomVmZjfjU tcNEbVH2twQ9ch97nGMNg== X-UI-Out-Filterresults: notjunk:1;V03:K0:Xrfr9cFd3PI=:uaPDVfs/JoAT5saIs0pLqh 4SKGeQS8iKZvzTdHVbOkTfC098pMwK3eWAaBiyjo0Hy2m7kAWBfFg46bPZP+tQtBMuvq26Voi 3ag/lFOsQepizpGfiFDBMUstVmJkIawYQvXfHlbmkHszrCdyiFWLwbPptqaJhSn2PWGR02BRj CH79dfWk9ifsZARE0PT2xeEADLr41EgSHAJuydfEsTLZlOjCle89d4fXiJrcIuvO6Ebz6Wy+d ktwiRQXvOkrVS/2bCahsN62aH+OvGhAd60yvMGUDcEsMQuMzE1QPrGGT3Ocn+8P9lq+YFqvBB nMRIz6s0CPzoaq2GVJGi/xL4wt7w1Pb6pRf+K/ejX3dyCZ+CwPWDNEhWa5rhsD93kIIgWJTdp WOkw+qXWR06lV1sWqCjUuX7W5WdyMZ70GJ224HxMzGJLRlDIY3WW7vSXqUZxOO0sirQcrENXQ Lt62l2KFsmae1+MKi3z8cru9FwlEE9ce96hzXzzNzQZhqDosoGdEHPAE2wxrRWmhiujnrsMCt UntLP0riOf13gUCVO0lqu0zBRBq8XAfCKgw/O+9mQ+RbYw1M8HgdfCc698RtokxZfZxFcPfid StlioxrbQzCdFWaOf9UV5vKGUY8C8i8taBTe7b9wDrMj980qeuMMmmAB0v8OLPgD+VXbqMtVi 4bbGXgZtugaika+Lr5C4DQK02sINTQvSPmPRMiNWwGupU/F3S1HAvpOjveT1al/VAwqmGRbjU r6mZZ5h+0B0QRBdjj9QcbrjZpf32dBevn6GVE/PGms1xteKHx2KBqYWgvUBjERhT19GQZJXc 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:239272 Archived-At: On Wed, 10 Aug 2022 14:44:59 +0300 Eli Zaretskii wrote: >> Date: Wed, 10 Aug 2022 10:34:32 +0000 >> From: Gregory Heytings >> cc: 56682@debbugs.gnu.org, Eli Zaretskii , >> monnier@iro.umontreal.ca, Dmitry Gutov >> >> Another option might be to add some limits to the algorithm in >> buffers with long lines, without disabling it completely. > > It already has such limits and other optimizations. Inhibiting the > BPA is an option if it is known that the buffer doesn't include ant > R2L characters anywhere; otherwise some braces/parens could be > displayed incorrectly mirrored. > > If you remove the 3 closing braces/brackets at EOB and the > corresponding opening braces/brackets, does navigation become > significantly faster? After removing those brackets, holding down `C-n' or `C-p' does seem a bit faster with bidi-inhibit-bpa nil, but not anywhere near as fast as with bidi-inhibit-bpa non-nil. > These are the only brackets I could spot in the > file that enclose very large portions of text. If removing them > doesn't help much, the only possible reason is that there are a lot of > bracketed stuff in this file. I suppose so, though I guess this is a pretty typical one-line JSON file. Steve Berman