X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:references:in-reply-to:subject:date
	:message-id:mime-version:content-type:content-transfer-encoding;
	q=dns; s=default; b=PLkGImgPLQdTTHZ3/jMj9eFgHIKDjOqThLpdDkApGnn
	DrHsCpuEdtQmxJHG/9n3nAMLUQU4J9qiJhNTA6xF+5YMEKeH0fQdhf6p6cp0VFDV
	9cw35fREhL+oL0HlDhqLQwtF1adyk1E6jO/QwY3xF0nCNUaSfMwl1DEKpbqlQDPw
	=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:references:in-reply-to:subject:date
	:message-id:mime-version:content-type:content-transfer-encoding;
	s=default; bh=qU5om3Csbf6LzklJdG3qiwsDNDc=; b=UNRg0zV3H553ib3lZ
	Bw7Y4Rs1IjH+n1z0ydkbFCMpBgoyjMCXPw2Ylzey+oGTAXXooVenHV4OpX9aGS44
	1q8Wi5lsY2bVBlSfcMWiylfwcM71JRSAyClyoNOAHzAKNbxJm8Ebsv+OQyB2dHLG
	G/Shmfrlbjfu8Q52j16CZONkQE=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
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
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==
From:	<ianpul01 AT gmail DOT com>
To:	<cygwin AT cygwin DOT com>
References:	<BY5PR18MB33611C2867F9EAD91EB51A8EB8250 AT BY5PR18MB3361 DOT namprd18 DOT prod DOT outlook DOT com>
In-Reply-To:
Subject:	RE: X11 forwarding extremely slow (unusable) after Cygwin upgrade on Dec 23rd
Date:	Thu, 2 Jan 2020 11:16:33 -0800
Message-ID:	<011b01d5c1a1$25a03750$70e0a5f0$@gmail.com>
MIME-Version:	1.0
X-IsSubscribed:	yes

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 AT gmail DOT com <ianpul01 AT gmail DOT 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 AT cygwin DOT com <cygwin-owner AT cygwin DOT 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

- Raw text -