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.bugs Subject: bug#46350: 28.0.50; touchpad-scrolling-eats-lots-of-cpu-samples Date: Mon, 08 Feb 2021 17:19:41 +0200 Message-ID: <83ft26lh82.fsf@gnu.org> References: <838s81nhoz.fsf@gnu.org> <8335y9neut.fsf@gnu.org> <83h7mnn4y6.fsf@gnu.org> <83czxbn2dy.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5063"; mail-complaints-to="usenet@ciao.gmane.io" Cc: andreyorst@gmail.com, 46350@debbugs.gnu.org, alan@idiocy.org To: Andrey Orst Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Feb 08 20:58:09 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 1l9Cfg-0001Cu-QF for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 08 Feb 2021 20:58:08 +0100 Original-Received: from localhost ([::1]:46034 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l9Cff-0003vG-Qt for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 08 Feb 2021 14:58:07 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39756) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l98KY-0006ps-6H for bug-gnu-emacs@gnu.org; Mon, 08 Feb 2021 10:20:06 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:40141) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1l98KX-0000rZ-PR for bug-gnu-emacs@gnu.org; Mon, 08 Feb 2021 10:20:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1l98KX-0001vq-Ld for bug-gnu-emacs@gnu.org; Mon, 08 Feb 2021 10:20:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 08 Feb 2021 15:20:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 46350 X-GNU-PR-Package: emacs Original-Received: via spool by 46350-submit@debbugs.gnu.org id=B46350.16127975747387 (code B ref 46350); Mon, 08 Feb 2021 15:20:01 +0000 Original-Received: (at 46350) by debbugs.gnu.org; 8 Feb 2021 15:19:34 +0000 Original-Received: from localhost ([127.0.0.1]:51687 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1l98K6-0001v5-7b for submit@debbugs.gnu.org; Mon, 08 Feb 2021 10:19:34 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:50094) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1l98K5-0001ut-18 for 46350@debbugs.gnu.org; Mon, 08 Feb 2021 10:19:33 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:51826) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l98Jz-0000gs-8p; Mon, 08 Feb 2021 10:19:27 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1287 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1l98Jy-0003h6-CR; Mon, 08 Feb 2021 10:19:27 -0500 In-Reply-To: (message from Andrey Orst on Mon, 8 Feb 2021 13:12:09 +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:199609 Archived-At: > From: Andrey Orst > Date: Mon, 8 Feb 2021 13:12:09 +0300 > > Also, for some reason scrolling to the buffer's end has much less lag compared to scrolling to the beginning > of the buffer. It's still laggy, but more manageable Scrolling back to the beginning of buffer is more CPU-intensive, because the functions used for scrolling can only move forward in the buffer. So what you see is quite expected.