From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/73442 Path: news.gmane.org!not-for-mail From: James Cloos Newsgroups: gmane.emacs.gnus.general Subject: Re: fast list Date: Thu, 21 Oct 2010 15:13:55 -0400 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1287688553 11310 80.91.229.12 (21 Oct 2010 19:15:53 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 21 Oct 2010 19:15:53 +0000 (UTC) To: ding@gnus.org Original-X-From: ding-owner+M21811@lists.math.uh.edu Thu Oct 21 21:15:51 2010 Return-path: Envelope-to: ding-account@gmane.org Original-Received: from util0.math.uh.edu ([129.7.128.18]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1P90cA-000546-6U for ding-account@gmane.org; Thu, 21 Oct 2010 21:15:50 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.math.uh.edu) by util0.math.uh.edu with smtp (Exim 4.63) (envelope-from ) id 1P90c7-0006Hb-0g; Thu, 21 Oct 2010 14:15:47 -0500 Original-Received: from mx1.math.uh.edu ([129.7.128.32]) by util0.math.uh.edu with esmtps (TLSv1:AES256-SHA:256) (Exim 4.63) (envelope-from ) id 1P90c5-0006HL-Eq for ding@lists.math.uh.edu; Thu, 21 Oct 2010 14:15:45 -0500 Original-Received: from quimby.gnus.org ([80.91.231.51]) by mx1.math.uh.edu with esmtp (Exim 4.72) (envelope-from ) id 1P90c0-0007e4-Ju for ding@lists.math.uh.edu; Thu, 21 Oct 2010 14:15:45 -0500 Original-Received: from eagle.jhcloos.com ([207.210.242.212]) by quimby.gnus.org with esmtp (Exim 3.36 #1 (Debian)) id 1P90bz-0003Pv-00 for ; Thu, 21 Oct 2010 21:15:39 +0200 Original-Received: by eagle.jhcloos.com (Postfix, from userid 10) id A22A840130; Thu, 21 Oct 2010 19:15:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jhcloos.com; s=eagle; t=1287688529; bh=bFLcWvQQXYCBMW4AvMG9yMZeH51KeuoXBehxptm/F9k=; h=From:To:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=euWvCfk+crmkQsG0BppsEyM/BaHLuWPRL8tMt1uK9GEemDgrVX9hFji97Vx76ntyl UbAtDZOdnb4ArODvEM5JrqCx0QuHSC4CQzOe6kvK2ahd9ASB61DHvsR3ON2vY4nUDu tVeGQ7xDleFeNg0g8kxbcj/iQYVNVUYqWaDD23DE= Original-Received: from carbon (localhost [127.0.0.1]) by carbon.jhcloos.org (Postfix) with ESMTP id 06CEC1E7E26 for ; Thu, 21 Oct 2010 19:13:55 +0000 (UTC) In-Reply-To: (Lars Magne Ingebrigtsen's message of "Thu, 21 Oct 2010 17:59:22 +0200") User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/24.0.50 (gnu/linux) Face: iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABHNCSVQICAgIfAhkiAAAAI1J REFUOE+lU9ESgCAIg64P1y+ngUdxhl5H8wFbbM0OmUiEhKkCYaZThXCo6KE5sCbA1DDX3genvO4d eBQgEMaM5qy6uWk4SfBYfdu9jvBN9nSVDOKRtwb+I3epboOsOX5pZbJNsBJFvmQQ05YMfieIBnYX FK2N6dOawd97r/e8RjkTLzmMsiVgrAoEugtviCM3v2WzjgAAAABJRU5ErkJggg== Copyright: Copyright 2009 James Cloos OpenPGP: ED7DAEA6; url=http://jhcloos.com/public_key/0xED7DAEA6.asc OpenPGP-Fingerprint: E9E9 F828 61A4 6EA9 0F2B 63E7 997A 9F17 ED7D AEA6 Original-Lines: 25 X-Hashcash: 1:30:101021:ding@gnus.org::im4TuM7wp1aZlc/B:000C6M7/ X-Spam-Score: -2.0 (--) List-ID: Precedence: bulk Xref: news.gmane.org gmane.emacs.gnus.general:73442 Archived-At: >>>>> "LMI" == Lars Magne Ingebrigtsen writes: LMI> James Cloos writes: >> The amount of data is the same, it just takes longer to grab it one >> group at a time than all at once. Part of the extra delay is the extra >> round trips. LMI> There are no extra round trips between Gnus and the IMAP server. The LMI> data is streamed. But there is between the imapd and the sql server when using something like dbmail, archivopterix or similar. >> Part of it is that scanning the tables and indices for >> one group takes nearly as long as scanning them for all of the groups. LMI> Yeah, that would explain the slow-down. But I don't think that's LMI> something that's true for most IMAP servers. Even those which do not have the imapd as a middleware can benefit from streaming the disk accesses. -JimC -- James Cloos OpenPGP: 1024D/ED7DAEA6