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: Indentation and gc Date: Tue, 14 Mar 2023 14:19:06 +0200 Message-ID: <83wn3jseyt.fsf@gnu.org> References: <20230310110747.4hytasakomvdyf7i.ref@Ergus> <87a60k657y.fsf@web.de> <838rg4zmg9.fsf@gnu.org> <87ttys4dge.fsf@web.de> <83sfebyepp.fsf@gnu.org> <87ttyru4zt.fsf@web.de> <83fsabyb41.fsf@gnu.org> <87mt4jtpqf.fsf@web.de> <83ilf7wi48.fsf@gnu.org> <878rg3wh2f.fsf@localhost> <83cz5fwggd.fsf@gnu.org> <871qlvwg1s.fsf@localhost> <83a60jwf9l.fsf@gnu.org> <871qluuk3y.fsf@localhost> <831qluuj7e.fsf@gnu.org> <87v8j6t3i9.fsf@localhost> <83v8j6t2ib.fsf@gnu.org> <87zg8gbsch.fsf@localhost> <838rg0u0fd.fsf@gnu.org> <87wn3ky7rz.fsf@localhost> <831qlstwoi.fsf@gnu.org> <87r0tsy1c4.fsf@localhost> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6657"; mail-complaints-to="usenet@ciao.gmane.io" Cc: arne_bab@web.de, spacibba@aol.com, emacs-devel@gnu.org To: Ihor Radchenko Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Mar 14 13:20:04 2023 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 1pc3dL-0001RR-Re for ged-emacs-devel@m.gmane-mx.org; Tue, 14 Mar 2023 13:20:03 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pc3cm-00061u-JR; Tue, 14 Mar 2023 08:19:28 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pc3cg-00061G-Hw for emacs-devel@gnu.org; Tue, 14 Mar 2023 08:19:23 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pc3cg-0002At-6o; Tue, 14 Mar 2023 08:19:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=pDkRrXfVuxRAh0WSJHWq4Ui52QegFgUXJ/e9TpHzlTo=; b=iXw2rWwXuawr H34A+FOIx2QCv/OXKZYOTpjGfXl8RnL/1ZDs/uIYLWFpfkrCLRq4XmE/VAYfpTk67KDZAf+rYnEd1 nHZvc1Z3w0KO/JBAJqsbK3NYTqX8mFxw5QV/HMvmSY+AOUYX7+KXH3jo5USHivwI4WLib/jEgoQAu gfhTlmt2f+22bKGwFcUehIcj93GHtib2TetxhOn/MMGB2vufWkIYTSLKtL2qaFz9YSAlW+PdCHpN/ p0KKTH0JXD4tPX1Y8XYfYSgkAqSqjgMFH6Qbl8GhhKFzU48ocKta7oLLsd5wakTOdxZgBdsx+b/GX EUcLJYmKtXv5cw+e78aCiQ==; Original-Received: from [87.69.77.57] (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 1pc3cX-0002uv-I4; Tue, 14 Mar 2023 08:19:21 -0400 In-Reply-To: <87r0tsy1c4.fsf@localhost> (message from Ihor Radchenko on Mon, 13 Mar 2023 18:04:43 +0000) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:304432 Archived-At: > From: Ihor Radchenko > Cc: arne_bab@web.de, spacibba@aol.com, emacs-devel@gnu.org > Date: Mon, 13 Mar 2023 18:04:43 +0000 > > > Ah, you mean RES. That's the "resident" part of the memory, i.e. what > > the OS decided to keep in physical memory at this point; the rest is > > swapped out. Basically, RES is not interesting, only the total > > virtual memory of the process (VIRT) is, because that's what is > > counted towards the total VM of the system. Although the complication > > is that VIRT also includes the so-called "reserved" memory, which is > > not necessarily in-use yet. > > This is a bit confusing then. It definitely is. > From my experience, RES is often closer to the memory-report > results. Not surprisingly, since Emacs touches Lisp objects very frequently (every GC), so they are likely to be in the resident set. > Moreover, VIRT can exceed Memory + Swap combined. Yes, because VIRT includes the "reserved" memory, which is memory not yet in-use, but which the application "reserved" for itself and generally intends to use at some point, and so it cannot be used by other processes. See https://stackoverflow.com/questions/2440434/whats-the-difference-between-reserved-and-committed-memory https://www.baeldung.com/linux/resident-set-vs-virtual-memory-size