From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: [ELPA] New package: emacs-gc-stats Date: Fri, 09 Jun 2023 12:19:44 -0400 Message-ID: References: <87ttxil7k3.fsf@localhost> <87bkhpuheb.fsf@localhost> <83r0ql0wji.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="33249"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Ihor Radchenko , Philip Kaludercic , emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Jun 09 18:20:31 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 1q7eqk-0008PL-E7 for ged-emacs-devel@m.gmane-mx.org; Fri, 09 Jun 2023 18:20:30 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q7eq7-0003Hp-CD; Fri, 09 Jun 2023 12:19:51 -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 1q7eq5-0003HS-VM for emacs-devel@gnu.org; Fri, 09 Jun 2023 12:19:49 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q7eq4-0001g0-9Z; Fri, 09 Jun 2023 12:19:49 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 0DBB51000C3; Fri, 9 Jun 2023 12:19:46 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id E96E5100006; Fri, 9 Jun 2023 12:19:44 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1686327584; bh=yk59MqeRpJOVYEUC/LBw7SwMrNadHu3SAKPwmm4BSD4=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=o9MEXBEKbz/JjHye898fa4L4vKFwX/WQSxUjsIa4Fs644wj4vPVgeMkvg/OLwPNRz TPefCkHOO2wgKOvTDNFR0w7z5jBb8FChAXahyo8xgflHBDB8ccRvL8S1RMS2bXmyyu tGJtIdqZCJMdPr0j1Okx7CZTGP8uBB6vWkE73tyKtrSLgHyzaBxRriar4EkdSiy+mo 0QvCS+fegQNMiOrGWvaWj9ll/H89iCLMsrikE/6kyAGE8b+8ysdbM8hkaMLzCC5kYM iMv70T2/Ewas6UsJwmhPoSfOEXfmw34kgtmg3aESX+9Zdq5VVILCiZu4oU0EzWyIlH E6IHZ5IvuaZWg== Original-Received: from alfajor (unknown [45.44.229.252]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id C903712013E; Fri, 9 Jun 2023 12:19:44 -0400 (EDT) In-Reply-To: <83r0ql0wji.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 09 Jun 2023 13:17:37 +0300") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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:306713 Archived-At: > I'd like to submit a helper package to collect GC statistics during > Emacs session. See the discussion in > https://yhetil.org/emacs-devel/831qluuj7e.fsf@gnu.org/ Let me know if you need help adding the package (I couldn't find a URL for the code, so I have no opinion about it (yet :-)) I haven't read the above discussion but I'll just point out that I regard discussions that focus on `gc-cons-threshold` to reflect a misunderstanding. What needs to be discussed/tweaked/investigated is usually `gc-cons-percentage` instead. More specifically the default value of `gc-cons-threshold` is rarely used, since in most relevant circumstances `gc-cons-percentage` takes precedence). Stefan PS: In recent Emacsen, `gc-cons-percentage` is set to 1.0 when running in batch. In non-batch I currently use 0.5 together with a timer that tries to opportunistically run the GC during idle time.