From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/88581 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: James Cloos Newsgroups: gmane.emacs.gnus.general Subject: Re: is nnmaildir very slow? Date: Fri, 17 May 2019 13:46:25 -0400 Message-ID: References: <87v9yb6k1z.fsf@ucl.ac.uk> <87bm02qdrm.fsf@igel.home> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="120515"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: Eric S Fraga , ding@gnus.org To: Andreas Schwab Original-X-From: ding-owner+M36784@lists.math.uh.edu Fri May 17 19:47:30 2019 Return-path: Envelope-to: ding-account@gmane.org Original-Received: from lists1.math.uh.edu ([129.7.128.208]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hRgx7-000VBl-Lr for ding-account@gmane.org; Fri, 17 May 2019 19:47:30 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.math.uh.edu) by lists1.math.uh.edu with smtp (Exim 4.92) (envelope-from ) id 1hRgwS-0004O0-6y; Fri, 17 May 2019 12:46:48 -0500 Original-Received: from mx1.math.uh.edu ([129.7.128.32]) by lists1.math.uh.edu with esmtps (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1hRgwL-0004LF-Tc for ding@lists.math.uh.edu; Fri, 17 May 2019 12:46:41 -0500 Original-Received: from quimby.gnus.org ([80.91.231.51]) by mx1.math.uh.edu with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1hRgwK-0007ao-Jc for ding@lists.math.uh.edu; Fri, 17 May 2019 12:46:41 -0500 Original-Received: from ore.jhcloos.com ([192.40.56.151]) by quimby.gnus.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hRgwG-0006Gu-Bo for ding@gnus.org; Fri, 17 May 2019 19:46:38 +0200 Original-Received: by ore.jhcloos.com (Postfix, from userid 10) id 6FB5A1DF93; Fri, 17 May 2019 17:46:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jhcloos.com; s=ore17; t=1558115192; bh=Wrap5g2Qy+o+V+4URu7PL/OdVwBk53Sve8Jbeijenjg=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=dDh/x/7BRz1MRQRxf9tf8iBjvzX7u2eQjlDxCYSvwqMzm7pQlTIYkY6UEwJg3jJUa dRb0AKFZjY+g+m1a1CTJ/nMvbDr8YhH7KfbUJ1q+GEjkEvjI9N7HK0QDO3VkU25si/ qFLwivQzn5ORtjbJWWdoqrc0Q4/8C68N7NmdjGWvAhNh3/5QnorkLOAREDh7rRFC1u BguSCaRZ8Lsq2PYCPCZxo0IOxUQlc9DOhQz9PtXQpeaaHm9+XunBZcm8caOix9qZoD eij2kpa19wjnKKJaeXCfUJURlMM9CDSIX6ZlDXYkeZr3Kq9j9wvzhqeb641OydCxUj ZYr+ZtWsFkZ7w== Original-Received: by carbon.jhcloos.org (Postfix, from userid 500) id DEDE1E424; Fri, 17 May 2019 17:46:25 +0000 (UTC) In-Reply-To: <87bm02qdrm.fsf@igel.home> (Andreas Schwab's message of "Thu, 16 May 2019 23:40:29 +0200") Face: iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAgMAAABinRfyAAAACVBMVEX///8ZGXBQKKnCrDQ3 AAAAJElEQVQImWNgQAAXzwQg4SKASgAlXIEEiwsSIYBEcLaAtMEAADJnB+kKcKioAAAAAElFTkSu QmCC Copyright: Copyright 2019 James Cloos OpenPGP: 0x997A9F17ED7DAEA6; url=https://jhcloos.com/public_key/0x997A9F17ED7DAEA6.asc OpenPGP-Fingerprint: E9E9 F828 61A4 6EA9 0F2B 63E7 997A 9F17 ED7D AEA6 Original-Lines: 23 List-ID: Precedence: bulk Xref: news.gmane.org gmane.emacs.gnus.general:88581 Archived-At: >>>>> "AS" == Andreas Schwab writes: AS> On Mai 16 2019, James Cloos wrote: >> On top of that bug, part of the issue is using the filesystem as a >> database. Anything using that style of storage suffers a superlinear >> delay as the size grows. AS> Not necessarily. Modern file systems have sublinear directory lookups. That is not the only issue. Cache presure is often a huge issue. nnmaildir triggered emacs' gc much more often. Of course with ssds and 32g ram my current workstation is vastly better. But gnus is still *slow* running gnus-group-get-new-news. -JimC -- James Cloos OpenPGP: 0x997A9F17ED7DAEA6