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#46881: 28.0.50; pdumper dumping causes way too many syscalls Date: Fri, 05 Mar 2021 15:23:55 +0200 Message-ID: <83pn0dybro.fsf@gnu.org> References: <83r1kw6b06.fsf@gnu.org> <90e99fc5-280d-63bb-9bc4-3efe89b9f9e2@dancol.org> <83a6riysnv.fsf@gnu.org> <83zgzixcfy.fsf@gnu.org> <83v9a5yfc0.fsf@gnu.org> <877dmlsr2x.fsf@gnus.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10156"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 46881@debbugs.gnu.org, eggert@cs.ucla.edu, pipcet@gmail.com To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Mar 05 14:25:10 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 1lIAS6-0002Wn-Jq for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Mar 2021 14:25:10 +0100 Original-Received: from localhost ([::1]:40796 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIAS5-00029d-B5 for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Mar 2021 08:25:09 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54180) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lIARy-00029R-4T for bug-gnu-emacs@gnu.org; Fri, 05 Mar 2021 08:25:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:49909) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lIARx-000188-Rl for bug-gnu-emacs@gnu.org; Fri, 05 Mar 2021 08:25:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lIARx-0004pi-K0 for bug-gnu-emacs@gnu.org; Fri, 05 Mar 2021 08:25:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 05 Mar 2021 13:25:01 +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=B46881.161495066018517 (code B ref 46881); Fri, 05 Mar 2021 13:25:01 +0000 Original-Received: (at 46881) by debbugs.gnu.org; 5 Mar 2021 13:24:20 +0000 Original-Received: from localhost ([127.0.0.1]:33222 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIARH-0004ob-Vo for submit@debbugs.gnu.org; Fri, 05 Mar 2021 08:24:20 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:36162) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIARF-0004oJ-MB for 46881@debbugs.gnu.org; Fri, 05 Mar 2021 08:24:18 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40742) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIAR9-0000qE-TM; Fri, 05 Mar 2021 08:24:11 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:2333 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lIAR9-0004Ny-5j; Fri, 05 Mar 2021 08:24:11 -0500 In-Reply-To: <877dmlsr2x.fsf@gnus.org> (message from Lars Ingebrigtsen on Fri, 05 Mar 2021 13:49:42 +0100) 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:201535 Archived-At: > From: Lars Ingebrigtsen > Cc: Pip Cet , 46881@debbugs.gnu.org, eggert@cs.ucla.edu > Date: Fri, 05 Mar 2021 13:49:42 +0100 > > Eli Zaretskii writes: > > > 30% slowdown and 1.5 sec absolute time difference doesn't sound bad > > enough to me to justify a homemade solution. I say let's go with > > stdio. > > Seems significant to me -- we're building Emacs a lot, and this bit > can't be parallelised. And the savings in electricity alone should make > us go for the most efficient solution. > > There doesn't seem to be any significant drawbacks to doing it the > efficient way, either. Fine, let's do it that way, then.