From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ihor Radchenko Newsgroups: gmane.emacs.devel Subject: Re: Indentation and gc Date: Sat, 11 Mar 2023 10:54:24 +0000 Message-ID: <87ttyrwobj.fsf@localhost> References: <20230310110747.4hytasakomvdyf7i.ref@Ergus> <20230310110747.4hytasakomvdyf7i@Ergus> <87a60k657y.fsf@web.de> <838rg4zmg9.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8247"; mail-complaints-to="usenet@ciao.gmane.io" Cc: "Dr. Arne Babenhauserheide" , spacibba@aol.com, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Mar 11 11:53:28 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 1pawqu-0001uM-S8 for ged-emacs-devel@m.gmane-mx.org; Sat, 11 Mar 2023 11:53:28 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pawqT-0001Ly-GS; Sat, 11 Mar 2023 05:53:01 -0500 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 1pawqQ-0001Le-Rv for emacs-devel@gnu.org; Sat, 11 Mar 2023 05:52:58 -0500 Original-Received: from mout01.posteo.de ([185.67.36.65]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pawqO-0001Xa-Ud for emacs-devel@gnu.org; Sat, 11 Mar 2023 05:52:58 -0500 Original-Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id EA4CF240256 for ; Sat, 11 Mar 2023 11:52:53 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1678531974; bh=f8N3SPQXRp9yGaDydR5A462FcQAtAmgVkANE7KhKQr4=; h=From:To:Cc:Subject:Date:From; b=JO1pWsaBeC/VDYwJIiQmtjzOiM7/1hLgxCb61TGg8rNGTT6uBPg7uYNcmxMR101w1 z98fcqgGg0i6lg/nzJQMheZHYFPpA3UByLXOR04wCWrHIjoZ4eMXE960FU4rHGSuZ9 g6c/oCMfHEhPvJ2z5g3zvI6fPBtoon4gOjtnCTSfrVn+hiRMaYgtI3TQJofpSATIRK 1cLGSz+u+I/mF7WMbec0JXX9ubV/OeEqMmAyByDplWxaYyAq6k9+QvisRIe4XeIgOT zwBEzsFoLdIfv3nO5VzUdfBzvEsV0vjuhMvScrj/OYOYCtInHcyYrhjjTaEChHjhQZ Q7stoTXJiAFmw== Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4PYfs12d4Hz9rxV; Sat, 11 Mar 2023 11:52:53 +0100 (CET) In-Reply-To: <838rg4zmg9.fsf@gnu.org> Received-SPF: pass client-ip=185.67.36.65; envelope-from=yantar92@posteo.net; helo=mout01.posteo.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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:304283 Archived-At: Eli Zaretskii writes: >> ;; Make gc pauses faster by decreasing the threshold again (from the increased initial). >> (setq gc-cons-threshold (* 20 1024 1024)) >> ;; original value: 800 000 >> >> ;; speed up reading from external processes >> (setq read-process-output-max (* 1024 1024)) ;; 1mb > > This can only be done around specific portions of code known in > advance to be long and GC-intensive. I don't think this kind of > technique can be used in the situation described by the OP. May it be done when loading init.el and early-init.el? Init files are commonly known to be resource-intensive. They also tend to trigger GC more because the heap size is not yet very large and thus `gc-cons-percentage' does not yet take precedence over `gc-cons-threshold'. As for "known in advance", may Emacs keep track of how many GCs are triggered by user commands and then adjust GC dynamically? -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at