From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Does Emacs return memory to the system on Mac OS X or *BSD? Date: Tue, 09 May 2017 23:07:52 -0400 Message-ID: References: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1494385724 27849 195.159.176.226 (10 May 2017 03:08:44 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 10 May 2017 03:08:44 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed May 10 05:08:41 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d8HzU-00078i-Bj for ged-emacs-devel@m.gmane.org; Wed, 10 May 2017 05:08:40 +0200 Original-Received: from localhost ([::1]:40197 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8HzY-0005xb-5x for ged-emacs-devel@m.gmane.org; Tue, 09 May 2017 23:08:44 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34523) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8Hyt-0005xT-PC for emacs-devel@gnu.org; Tue, 09 May 2017 23:08:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d8Hyq-0000L1-LK for emacs-devel@gnu.org; Tue, 09 May 2017 23:08:03 -0400 Original-Received: from [195.159.176.226] (port=39239 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1d8Hyq-0000Ks-FB for emacs-devel@gnu.org; Tue, 09 May 2017 23:08:00 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1d8Hyi-0006KX-2E for emacs-devel@gnu.org; Wed, 10 May 2017 05:07:52 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 12 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:+Uqni+x0zYspD4WtMlscniUFdyM= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:214739 Archived-At: > I'm curious as to whether Emacs returns memory to the operating system > when running on Mac OS X or *BSD systems. This question is largely ill-posed: would you really care if Emacs once in a blue moon returns 4KB out of a 2GB heap? The answer depends on a lot of details about the system, the compile-time options used, and the specific usage pattern. And in my experience, in the end it never really matters anyway. Stefan