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: Which is faster: narrow-to-region or delete-region? Date: Wed, 22 Sep 2021 10:41:33 +0300 Message-ID: <83ilytvyz6.fsf@gnu.org> References: <83wnn9w43b.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="11181"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Arthur Miller Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Sep 22 09:42:57 2021 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 1mSwu9-0002ho-C1 for ged-emacs-devel@m.gmane-mx.org; Wed, 22 Sep 2021 09:42:57 +0200 Original-Received: from localhost ([::1]:49166 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mSwu8-0005Nf-62 for ged-emacs-devel@m.gmane-mx.org; Wed, 22 Sep 2021 03:42:56 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41310) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mSwsq-0004Xh-VH for emacs-devel@gnu.org; Wed, 22 Sep 2021 03:41:36 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:55208) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mSwsq-0007ml-6v; Wed, 22 Sep 2021 03:41:36 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1409 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mSwsp-00047o-Qc; Wed, 22 Sep 2021 03:41:36 -0400 In-Reply-To: (message from Arthur Miller on Wed, 22 Sep 2021 09:00:54 +0200) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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" Xref: news.gmane.io gmane.emacs.devel:275299 Archived-At: > From: Arthur Miller > Cc: emacs-devel@gnu.org > Date: Wed, 22 Sep 2021 09:00:54 +0200 > > > bunch of variables and does little else. Moreover, it cannot trigger > > GC, whereas delete-region method very well can. > > That too, wasn't even thinking about that. I am not so familiar how GC works > with code in C. GC can be triggered in C code by any of the following: . calling Lisp . calling some primitives, like funcall, directly from C . modifying text of some buffer . calling a memory-allocation function such as xmalloc