From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.bugs Subject: bug#46881: 28.0.50; pdumper dumping causes way too many syscalls Date: Fri, 05 Mar 2021 10:35:26 +0100 Message-ID: <87y2f254f5.fsf@igel.home> References: <83r1kw6b06.fsf@gnu.org> <90e99fc5-280d-63bb-9bc4-3efe89b9f9e2@dancol.org> <83a6riysnv.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28904"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1.91 (gnu/linux) Cc: 46881@debbugs.gnu.org, eggert@cs.ucla.edu To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Mar 05 10:36:26 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 1lI6sj-0007OR-Kl for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Mar 2021 10:36:25 +0100 Original-Received: from localhost ([::1]:53554 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lI6si-0002vp-KJ for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Mar 2021 04:36:24 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36922) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lI6sL-0002si-Uk for bug-gnu-emacs@gnu.org; Fri, 05 Mar 2021 04:36:01 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:49558) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lI6sL-0002c6-Lx for bug-gnu-emacs@gnu.org; Fri, 05 Mar 2021 04:36:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lI6sL-00014o-Jm for bug-gnu-emacs@gnu.org; Fri, 05 Mar 2021 04:36:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Andreas Schwab Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 05 Mar 2021 09:36:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 46881 X-GNU-PR-Package: emacs Original-Received: via spool by 46881-submit@debbugs.gnu.org id=B46881.16149369334100 (code B ref 46881); Fri, 05 Mar 2021 09:36:01 +0000 Original-Received: (at 46881) by debbugs.gnu.org; 5 Mar 2021 09:35:33 +0000 Original-Received: from localhost ([127.0.0.1]:32871 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lI6rs-000144-ML for submit@debbugs.gnu.org; Fri, 05 Mar 2021 04:35:32 -0500 Original-Received: from mail-out.m-online.net ([212.18.0.9]:52540) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lI6rq-00013u-7X for 46881@debbugs.gnu.org; Fri, 05 Mar 2021 04:35:31 -0500 Original-Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4DsMzN49hKz1qtdy; Fri, 5 Mar 2021 10:35:27 +0100 (CET) Original-Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4DsMzM5MPvz1qqkq; Fri, 5 Mar 2021 10:35:27 +0100 (CET) X-Virus-Scanned: amavisd-new at mnet-online.de Original-Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id IM447b6YijDw; Fri, 5 Mar 2021 10:35:27 +0100 (CET) X-Auth-Info: fhSJwioBJAvJNsQ/GmLU0kYqA/+5GVM3Jh8ffWYZkuSrPplrSvCCijjRsl11t7pP Original-Received: from igel.home (ppp-46-244-183-40.dynamic.mnet-online.de [46.244.183.40]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Fri, 5 Mar 2021 10:35:27 +0100 (CET) Original-Received: by igel.home (Postfix, from userid 1000) id 76A0F2C362B; Fri, 5 Mar 2021 10:35:26 +0100 (CET) X-Yow: Someone is DROOLING on my collar!! In-Reply-To: (Pip Cet's message of "Fri, 5 Mar 2021 07:38:27 +0000") 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:201511 Archived-At: On Mär 05 2021, Pip Cet wrote: > We're talking about a file which Emacs is going to have to keep in > memory anyway, when reading the dump. While reading the dump, you only have the data once, and you don't have to realloc the whole data. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."