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.devel Subject: Re: Debouncing slow mode line constructs (was: Emacs design and architecture. How about copy-on-write?) Date: Thu, 21 Sep 2023 16:48:03 +0300 Message-ID: <83ttrn8woc.fsf@gnu.org> References: <83fs3ackrq.fsf@gnu.org> <99e84ae7-b3aa-a009-5cb8-a75826343196@gutov.dev> <838r92cgxp.fsf@gnu.org> <837comcam8.fsf@gnu.org> <6946e6f0-c6ef-186c-35d4-c09935c05a07@gutov.dev> <83y1h1axtq.fsf@gnu.org> <87sf79rq5o.fsf@yahoo.com> <83fs38c2yv.fsf@gnu.org> <83o7hw9ee1.fsf@gnu.org> <87il84q845.fsf@yahoo.com> <83il849bx6.fsf@gnu.org> <87a5tfri8c.fsf@yahoo.com> <878r8z27cs.fsf@localhost> <44e98df7-f683-ac07-e644-40757f1d26f9@gutov.dev> <87msxfzts6.fsf@localhost> <7b0c07f5-88c8-4f2c-6ac6-a6112c884f32@gutov.dev> <87il83zsg1.fsf@localhost> <87fs37zrjx.fsf@localhost> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="27313"; mail-complaints-to="usenet@ciao.gmane.io" Cc: dmitry@gutov.dev, luangruo@yahoo.com, acm@muc.de, incal@dataswamp.org, emacs-devel@gnu.org To: Ihor Radchenko Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Sep 21 15:48:50 2023 Return-path: Envelope-to: ged-emacs-devel@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 1qjK2z-0006ot-9O for ged-emacs-devel@m.gmane-mx.org; Thu, 21 Sep 2023 15:48:49 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qjK2Q-0003WR-Pg; Thu, 21 Sep 2023 09:48:15 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qjK2A-0003Nr-Pt for emacs-devel@gnu.org; Thu, 21 Sep 2023 09:48:00 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qjK29-0003fV-2N; Thu, 21 Sep 2023 09:47:57 -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=ffpnXIHoTc/Z2XxXTovz4WworoqOuqJ1ypv0Fv06Z1o=; b=biE8MQFiJjHW 87IJbbxjLFTfW79vBF+HJLOL75cuPQx+63+wBwSdh6+7Yqe3D0d1WMlMml/B7km3qxXN0T5K+5aPn 1dPjDmG4ICNYP1UtreAUV7hBijq9tCFyALHhp8TShzHmgMVCuqcJpsGFtwuMlja0cXm4qsFAQLyy4 E9/nGucou0KoYijkGnMH1LEhNdOcqa+l6GDUJPEb+Ndp0nVYrv/cB3YgNCMEGl/82yXZRcJq344AP QvbWNZai7JVjj1pwsJ4yMB77kpD07XFMloSqxRj1uM4rnHGtUjSSe4IjZwcgijml6ZuotrXu1J3jx 7i9JYXxCZ6U8JG7UGE15KA==; In-Reply-To: <87fs37zrjx.fsf@localhost> (message from Ihor Radchenko on Thu, 21 Sep 2023 11:36:34 +0000) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:310912 Archived-At: > From: Ihor Radchenko > Cc: Po Lu , Eli Zaretskii , acm@muc.de, > incal@dataswamp.org, emacs-devel@gnu.org > Date: Thu, 21 Sep 2023 11:36:34 +0000 > > What about automatically debouncing slow :eval constructs in the mode > line? If we make sure that :eval constructs running longer than a > threshold do not run too frequently, it can certainly improve user > experience. How do you propose to evaluate just portions of the mode line? What will the :eval whose processing is bypassed yield, and how will that affect processing of the rest of mode-line-format, given its highly-recursive processing structure and the fact that the text produced by this processing is laid out as it is produced?