From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: Lexical binding doesn't seem to be faster? Date: Sun, 10 Mar 2019 14:07:59 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="230193"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: help-gnu-emacs@gnu.org To: Hi-Angel Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Mar 10 19:13:26 2019 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1h32wv-000xoM-GI for geh-help-gnu-emacs@m.gmane.org; Sun, 10 Mar 2019 19:13:25 +0100 Original-Received: from localhost ([127.0.0.1]:48077 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h32wu-0001mI-GH for geh-help-gnu-emacs@m.gmane.org; Sun, 10 Mar 2019 14:13:24 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:37862) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h32ri-0006nB-FF for help-gnu-emacs@gnu.org; Sun, 10 Mar 2019 14:08:03 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h32rh-0001fV-S5 for help-gnu-emacs@gnu.org; Sun, 10 Mar 2019 14:08:02 -0400 Original-Received: from chene.dit.umontreal.ca ([132.204.246.20]:50764) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h32rh-0001f1-MA for help-gnu-emacs@gnu.org; Sun, 10 Mar 2019 14:08:01 -0400 Original-Received: from pastel.home (lechon.iro.umontreal.ca [132.204.27.242]) by chene.dit.umontreal.ca (8.14.7/8.14.1) with ESMTP id x2AI7xc0023458; Sun, 10 Mar 2019 14:07:59 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id 3557B6A17C; Sun, 10 Mar 2019 14:07:59 -0400 (EDT) In-Reply-To: (Hi-Angel's message of "Sun, 10 Mar 2019 18:16:04 +0300") X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 2 Rules triggered EDT_SA_DN_PASS=0, RV6499=0 X-NAI-Spam-Version: 2.3.0.9418 : core <6499> : inlines <7030> : streams <1815321> : uri <2810331> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 132.204.246.20 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:119601 Archived-At: > Thanks, so, I did that, and without disabling GC results look quite odd. > > For "lexical-binding: t" it is: > > - ... 2 100% > - list 1 50% > - - 1 50% > - let 1 50% > - let 1 50% > - while 1 50% > - funcall 1 50% > - # 1 50% > - c-font-lock-fontify-region 1 50% > - c-before-context-fl-expand-region 1 50% > - mapc 1 50% > - # 1 50% > - c-context-expand-fl-region 1 50% > - c-fl-decl-end 1 50% > - c-literal-start 1 50% > - c-state-semi-pp-to-literal 1 50% > c-parse-ps-state-below 1 50% > Automatic GC 1 50% The code didn't run long enough to get any meaningful profile: profiler-start is sampling-based (and apparently in the above we only got 2 samples) so make sure the code runs for several seconds (the more the merrier). Stefan