From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/50995 Path: main.gmane.org!not-for-mail From: David Abrahams Newsgroups: gmane.emacs.gnus.general Subject: Re: nnimap slowness Date: Sat, 22 Mar 2003 22:20:02 -0500 Sender: owner-ding@hpc.uh.edu Message-ID: References: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1048389697 4734 80.91.224.249 (23 Mar 2003 03:21:37 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Sun, 23 Mar 2003 03:21:37 +0000 (UTC) Cc: jas@extundo.com Original-X-From: owner-ding@hpc.uh.edu Sun Mar 23 04:21:36 2003 Return-path: Original-Received: from malifon.math.uh.edu ([129.7.128.13]) by main.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 18ww3E-0001E6-00 for ; Sun, 23 Mar 2003 04:21:36 +0100 Original-Received: from sina.hpc.uh.edu ([129.7.128.10] ident=lists) by malifon.math.uh.edu with esmtp (Exim 3.20 #1) id 18ww2S-0000of-00; Sat, 22 Mar 2003 21:20:48 -0600 Original-Received: by sina.hpc.uh.edu (TLB v0.09a (1.20 tibbs 1996/10/09 22:03:07)); Sat, 22 Mar 2003 21:21:50 -0600 (CST) Original-Received: from stlport.com (stlport.com [64.39.31.56]) by sina.hpc.uh.edu (8.9.3/8.9.3) with ESMTP id VAA21283 for ; Sat, 22 Mar 2003 21:21:40 -0600 (CST) Original-Received: from [146.115.123.42] (account dave HELO PENGUIN.boost-consulting.com) by stlport.com (CommuniGate Pro SMTP 3.5.9) with ESMTP id 213624; Sat, 22 Mar 2003 19:20:33 -0800 Original-To: ding@hpc.uh.edu In-Reply-To: (Simon Josefsson's message of "Sat, 22 Mar 2003 18:52:36 +0100") User-Agent: Gnus/5.090016 (Oort Gnus v0.16) Emacs/21.3.50 (i386-msvc-nt5.1.2600) Precedence: list X-Majordomo: 1.94.jlt7 Xref: main.gmane.org gmane.emacs.gnus.general:50995 X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:50995 Simon Josefsson writes: > To find out what causes slowness for small data, you must tcpdump or > ethereal the stream to see which side is delaying the transfer, or if > it is the network that has high latency. ELP data isn't that useful > in this case. I got myself a copy of Ethereal and captured packets from a `M-G', but I have no clue yet as to how to get any useful information from what I'm seeing... ...I hate to keep harping on this, but it really has the look/feel of some inefficiency in what GNUs is doing. Looking at the packets one more time it sure looks very much as though GNUs is receiving the same sequence of packets (about 27K worth) twice from the IMAP server, though it's pretty hard for me to tell anything, especially peering through SSL encoding. -- Dave Abrahams Boost Consulting www.boost-consulting.com