From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Deniz Dogan Newsgroups: gmane.emacs.devel Subject: Re: Low redisplay performance (23 regression) Date: Tue, 21 Apr 2009 00:31:57 +0200 Message-ID: <7b501d5c0904201531u2c7648d6s24aa1f4de01e29df@mail.gmail.com> References: <4870CC42-A08E-4BE9-B566-0F4DA7AB0B74@gmail.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1240266783 23023 80.91.229.12 (20 Apr 2009 22:33:03 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 20 Apr 2009 22:33:03 +0000 (UTC) Cc: Emacs-Devel devel To: David Reitter Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Apr 21 00:34:22 2009 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1Lw24D-0006Ji-Uv for ged-emacs-devel@m.gmane.org; Tue, 21 Apr 2009 00:34:22 +0200 Original-Received: from localhost ([127.0.0.1]:51872 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Lw22o-0000yO-Qs for ged-emacs-devel@m.gmane.org; Mon, 20 Apr 2009 18:32:54 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Lw21y-00005h-Fr for emacs-devel@gnu.org; Mon, 20 Apr 2009 18:32:02 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Lw21x-00004u-NU for emacs-devel@gnu.org; Mon, 20 Apr 2009 18:32:01 -0400 Original-Received: from [199.232.76.173] (port=49100 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Lw21x-0008WR-Aq for emacs-devel@gnu.org; Mon, 20 Apr 2009 18:32:01 -0400 Original-Received: from fg-out-1718.google.com ([72.14.220.155]:13374) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Lw21w-0008NA-UP for emacs-devel@gnu.org; Mon, 20 Apr 2009 18:32:01 -0400 Original-Received: by fg-out-1718.google.com with SMTP id l27so520134fgb.7 for ; Mon, 20 Apr 2009 15:31:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=qva/OLOs/km4NUuyXTkjYe3G9F3Gs1iGQiHrBPGx6PM=; b=d5M5G24R1RR5NVSkCkJ05mkxgEkWF+G/NSjCbgDgAJNou1RI5tZrLxGhX3oVwFJ6mU VY9KB1RR3go98/cDSS+lEMDkVR7vwhsrxoelH9NOe3cuUkBVEHOCIQVtzc2Y5579KWQ9 HbZRNbD6SgkUK5gNXUAJc2Lma78YMmETCYuN0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=V9Zi0aXfcaC69Z17ji0KbnzQxVYISytpuAi9Wb450qr61PpiHoj3RsbeVFpwfVgKY6 WcR9shhJ3TETO4gyf8X+kgsqVny/dbbuGxatUqd4bbh2s6FHUinZU/jO7i5NstJ/GZLu 9j0Z3ql/oe6HOUfSSg4a3b7YJl1IghuFaYowo= Original-Received: by 10.86.36.17 with SMTP id j17mr4233982fgj.31.1240266717099; Mon, 20 Apr 2009 15:31:57 -0700 (PDT) In-Reply-To: <4870CC42-A08E-4BE9-B566-0F4DA7AB0B74@gmail.com> X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 2) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:110379 Archived-At: 2009/4/20 David Reitter : > I've been noticing a substantial slowdown in redisplay performance. > =A0Scrolling down emacs.c in fundamental-mode takes about 2 seconds in Em= acs > 22 (Carbon port), and 3 seconds in Emacs 23 (NS port). > > With font-lock-mode (in c-mode) enabled, the difference is even larger: > > About 2.5 seconds in Emacs 22, and more than 7 seconds in 23/NS. > > The effect interacts with the display of overlays etc. in the header line= . > =A0When turning that off, I get about 2.5 seconds in Emacs 22, and still = more > than 4 seconds in 23/NS. =A0(All values estimated manually from several > tries.) > > I'm wondering if others get the same on other platforms comparing 22 and = 23, > or if this is a problem specifically in the NS port (for example, with > setting drawing color or the like). I haven't really done any real testing, but I recall the difference being quite noticable when I switched from 22 to 23. -- Deniz Dogan