From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 75131 invoked by alias); 2 Jan 2020 19:16:40 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 75123 invoked by uid 89); 2 Jan 2020 19:16:39 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-2.5 required=5.0 tests=AWL,BAYES_00,CYGWIN_OWNER_BODY,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,GIT_PATCH_2,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.1 spammy=sometime, cygwinownercygwincom, U*cygwin-owner, download X-HELO: mail-pj1-f48.google.com Received: from mail-pj1-f48.google.com (HELO mail-pj1-f48.google.com) (209.85.216.48) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 02 Jan 2020 19:16:37 +0000 Received: by mail-pj1-f48.google.com with SMTP id r67so3639233pjb.0 for ; Thu, 02 Jan 2020 11:16:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:references:in-reply-to:subject:date:message-id:mime-version :content-transfer-encoding:thread-index:content-language; bh=i+siLdXvL3vTEjQvte494orcxkNwPCPpy1AM5Wmm+bI=; b=brE3lx9vS+XNq6tex64SAMGijVZ2bKmh9SJ1IOp45FjcPZIC4whDC2YOgolia5FaJX hDHpwN3NTei56GFBMM/Jn7PeAlsVcMm+4OzWdYIJxQyhe7o97IIbqthu6AUOIc/PqLNB H6S55jxEgg2LTs2qabbQZvSvjWmyb72jO5bOou8gvtmHPps8HyTn9p8zpi1Zs+hWM6PA QDsCvdQtFBvMjATb0nqDsP8l8MSD4Rmqiwyi8DDJYd9fAGEZBwW6nvVrEmBoRRi+NSxu /H703Ch737p/ttZ545HHOTTf0VQNAyTcG5uBvXyK1pB0VFeFmDjQQLBv8xxYiqFZc3nS Uhug== Return-Path: Received: from MININTNETB43R ([4.78.245.198]) by smtp.gmail.com with ESMTPSA id m22sm63823097pgn.8.2020.01.02.11.16.33 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 02 Jan 2020 11:16:34 -0800 (PST) From: To: References: In-Reply-To: Subject: RE: X11 forwarding extremely slow (unusable) after Cygwin upgrade on Dec 23rd Date: Thu, 02 Jan 2020 19:16:00 -0000 Message-ID: <011b01d5c1a1$25a03750$70e0a5f0$@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2020-01/txt/msg00016.txt.bz2 Hi. I don't know if this will help at all since there is a big time gap and it looks like a lot of changes between these, but I tried the cygwin1 dlls from the snapshots at https://www.cygwin.com/snapshots and found that the 2019-08-19 snapshot works fine, the next one dated 2019-11-03 introduces the issue. Someone told me offline that there were about half a dozen released versions between 3.0.7-1 and 3.1.0-1, but those are not available to pull from any of the mirrors that I tried. Anyone know if any of those intermediate versions of cygwin1.dll may be available somewhere from which I can grab them to try to narrow this down further? Ian > -----Original Message----- > From: ianpul01@gmail.com > Sent: Wednesday, January 1, 2020 12:41 AM > > The problem is with cygwin 3.1.0-1, released on Dec 16th, or thereabouts. > > I decided to track it down by re-installing the earlier working release from > the Cygwin time machine at crouchingtigerhiddenfruitbat.org, and then > incrementally upgrading it until the problem showed up. It turns out that it > was introduced in the Dec 16th release, which made just one change - > upgraded cygwin from 3.0.7-1 to 3.1.0-1. With the Dec 15th release all works > fine - nice fast response in the X11 windows, with the Dec 16th release the > same programs in X11 windows are really, really slow. > > I can roll cygwin back to 3.0.7-1 from the latter release and X.11 then works > fine again. > > To quantify the problem, I timed these using the BeyondCompare and kdiff3 > file diff programs (which really show up the issue being very CPU intensive) > comparing two versions of a source code directory containing 6 largish files, > all differing: > > Time to open the window and display the directory: > > BeyondCompare with cygwin 3.0.7-1: 2 seconds, with cygwin 3.1.0-1: > 18 seconds. > Kdiff3 with cygwin 3.0.7.1: 4 seconds with cygwin 3.1.0-1: > 15 seconds. > > Time to open a tab and display the diffs for one of the files: > > BeyondCompare with cygwin 3.0.7-1: 1 seconds, with cygwin 3.1.0-1: > 8 seconds. > Kdiff3 with cygwin 3.0.7.1: 5 seconds with cygwin 3.1.0-1: > 13 seconds. > > Firefox is not so bad, but still slower. The time to open the window and > display the default home page is about 2 seconds with cygwin 3.0.7-1, 5 > seconds with 3.1.0-1. And the problem that I reported below relating to slow > response trying to type into Firefox's address bar is not showing up with this > build. Either that was introduced later, or maybe it was some side effect of > the upgrade path that I took then? > > Ian > > > -----Original Message----- > > From: cygwin-owner@cygwin.com On > Behalf Of > > Ian Puleston > > Sent: Friday, December 27, 2019 4:39 PM > > > > Hi, > > > > I have a Cygwin installation on a Windows 10 PC, on which I use > > X-Windows to access a Linux development/build server. All has been > > working great for a long time, until I rand a Cygwin upgrade on > > December 23rd, and after that > > X11 has become pretty much unusable. I normally launch the terminator > > terminal emulator locally under X, in that I "ssh -Y" to the Linux > > machine, and then on there I use a number of GUI apps, mainly > > SlickEdit and BeyondCompare, which run remotely via X11 forwarding to > > display in windows on my local Windows PC. But since this Cygwin > > upgrade all of those remote X11 apps are now extremely slow to respond > > to anything - about 10 to 20 seconds to action any key press or mouse > click. > > > > The two machines are on the same Gig-Ethernet LAN segment so there are > > no latency issues there (ping response time <1mS). > > > > To take any possible problems with those components out of the > > picture, I tried instead launching xterm under X11 locally, and from > > it launching Firefox after ssh to the Linux machine, and again I see > > the same symptoms with that > > - trying to type into Firefox's address bar takes about 10 seconds per letter. > > > > I had previously updated my Cygwin installation on March 3rd 2019, so > > this problem has come in sometime between then and now. I've just > > spent a very long day and a half rolling back the changes as much as I > > could (by hacking the setup.ini and re-installing previous versions > > from the local download > > cache) and eventually managed to get a working hybrid with enough > > packages rolled back to make the difference, and now X11 is working > > fine again. > > > > I also tried a new clean install of the latest Cygwin, after deleting > > my .XWinrc and removing all but the bare minimum from .startxwinrc, > > and do see the problem with that too. > > > > Is this any known problem? I couldn't find anything obvious in the > > email archives. > > > > Ian > > > > -- > > Problem reports: http://cygwin.com/problems.html > > FAQ: http://cygwin.com/faq/ > > Documentation: http://cygwin.com/docs.html > > Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple