X2Go Bug report logs - #586
X2Go session sometimes slows to a crawl

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Message #5 received at submit@bugs.x2go.org (full text, mbox, reply):

From: Stefan Radermacher <stefan@zaister.de>

To: submit@bugs.x2go.org

Subject: X2Go session sometimes slows to a crawl

Date: Thu, 28 Aug 2014 14:23:39 +0200

Package: x2goserver
Version: 4.0.1.15

The client machine's OS: Gentoo Linux 64-bit
The client machine's version of X2GoClient: 4.0.2.1
Any relevant session settings in X2GoClient: KDE session
The server's OS: Gentoo Linux 64-bit
The server's version of the x2goserver package: 4.0.1.15
The server's version of the x2goserver-xsession package (included in
server package)
The server's version of the nx-libs package: 3.5.0.27

After a while of running, the session can slow down so that the
environment reacts very slowly, window changes come only after seconds,
and mouse clicks or keyboard presses only register after several
seconds, too. This happens even if there is no significant load on the
server machine.

On occasion, the session can actually recover from this state.

When the session is disconnected during such a slowdown, it terminates, too.

Message #10 received at 586@bugs.x2go.org (full text, mbox, reply):

From: Milan Knížek <knizek.confy@gmail.com>

To: Stefan Radermacher <stefan@zaister.de>, 586@bugs.x2go.org

Cc: submit@bugs.x2go.org

Subject: Re: [X2Go-Dev] Bug#586: X2Go session sometimes slows to a crawl

Date: Thu, 28 Aug 2014 16:15:30 +0200

Stefan Radermacher píše v Čt 28. 08. 2014 v 14:23 +0200:

> After a while of running, the session can slow down so that the
> environment reacts very slowly, window changes come only after seconds,
> and mouse clicks or keyboard presses only register after several
> seconds, too. This happens even if there is no significant load on the
> server machine.
> 
> On occasion, the session can actually recover from this state.

I experience the same behaviour for about 9 months now. Server is Arch
Linux x86_64 with recent x2go server. Client is on Windows XP. I do not
use clients on other OS's, hence cannot tell otherwise. Different
versions of neither client nor server seem to have any influence on the
behaviour.

Someone on the mailing list mentioned the reason could be antivirus
scanning the temporary files (i.e. locking them) on client. Since I use
a company PC, the antivirus cannot be prevented to ignore the x2go temp
files and I cannot tell if this really is the culprit.

However, since this affects also a Linux client in your case, I am more
inclined to an idea of too recent X libs - dependencies of apps - being
incompatible with the old x2go agent. (Both Arch and Gentoo are probably
ahead with upgraded packages compared to Debian).

Milan

Message #15 received at 586@bugs.x2go.org (full text, mbox, reply):

From: Milan Knížek <knizek.confy@gmail.com>

To: 586@bugs.x2go.org

Subject: Re: [X2Go-Dev] Bug#586: Bug#586: X2Go session sometimes slows to a crawl

Date: Wed, 22 Oct 2014 11:11:31 +0200

> 
> 
> > After a while of running, the session can slow down so that the
> > environment reacts very slowly, window changes come only after seconds,
> > and mouse clicks or keyboard presses only register after several
> > seconds, too. This happens even if there is no significant load on the
> > server machine.
> > 
> > On occasion, the session can actually recover from this state.

In PyHoca-GUI + Win 7 (I have used it for about one month now), it seems
to be more stable and the "slow-down" problem appears less often.

The following might be related: when I open any keepass window, the
window (db unlock, item display, whatever) is not drawn properly
initially - some parts are not drawn and instead the contents of another
window in the background is shown.
At the same moment all x2go windows freeze for about 30 seconds and then
all the apps (including keepass) continue to work normally. The
originally scattered contents of keepass window is eventually drawn
properly too.
Keepass is a Mono app.

Milan

Message #20 received at 586@bugs.x2go.org (full text, mbox, reply):

From: Milan Knížek <knizek.confy@gmail.com>

To: 586@bugs.x2go.org

Subject: [X2Go-Dev] Bug#586: X2Go session sometimes slows to a crawl

Date: Wed, 22 Oct 2014 15:30:49 +0200

Milan Knížek píše v St 22. 10. 2014 v 11:11 +0200:
> > 
> The following might be related: when I open any keepass window, the
> window (db unlock, item display, whatever) is not drawn properly
> initially - some parts are not drawn and instead the contents of another
> window in the background is shown.
> At the same moment all x2go windows freeze for about 30 seconds and then
> all the apps (including keepass) continue to work normally. The
> originally scattered contents of keepass window is eventually drawn
> properly too.
> Keepass is a Mono app.
> 
Interestingly, the "freeze" period gets shorter down to cca 5 seconds,
when I used Xming+Putty X server (version 6.9.0.31).

Milan

Message #25 received at 586@bugs.x2go.org (full text, mbox, reply):

From: Brian Lim <brian.lim.ca@gmail.com>

To: 586@bugs.x2go.org

Subject: bug 586 seems similar to bug 465

Date: Mon, 8 Dec 2014 04:44:14 -0500

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Bug 465 also describes slowness. Bug 465 also documents that the problem is
intermittent and illustrates that point in the attached document that
contains a plot that shows that the problem gets progressively worse but
can suddenly be absent. However, even though the problem can become absent,
it very shortly returns.

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Message #30 received at 586@bugs.x2go.org (full text, mbox, reply):

From: Marc V <therebel22@gmail.com>

To: 586@bugs.x2go.org

Subject: Re: [X2Go-Dev] Bug#586: X2Go session sometimes slows to a crawl

Date: Wed, 19 Aug 2015 21:03:06 +0200

[Message part 1 (text/plain, inline)]

Hello,

same problem here. Afters hours (3-4H, random) , session becomes slow, clic
very long to respond. No network problem, no load or CPU high on server,
everything is normal on server.

I was unable to reproduce at any time. and i wad unable to guess what KDE4
app is problem. Application that are used :  Dolphin, Open Office Calc,
sometimes Firefox

Closing session et restart it is OK.

I can make some tests or look for logs if you want..
Thanks

Package: x2goserver
Version: 4.1.0.0-0~1303~ubuntu14.04.1

The client machine's OS: Window 7 or Linux Debian Jessie
The client machine's version of X2GoClient: 4.0.2.1
Any relevant session settings in X2GoClient: KDE 4.13 session
The server's OS: Ubuntu 14.04 64-bit
The server's version of the x2goserver package: 4.1.0.0-0~1303
The server's version of the x2goserver-xsession package (included in
server package) : 4.1.0.0-0~1303~ubuntu14.04.1
The server's version of the nx-libs package: 3.5.0.33-0~671~ubuntu14.04.1

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Message #35 received at 586@bugs.x2go.org (full text, mbox, reply):

From: Ulrich Sibiller <uli42@gmx.de>

To: Marc V <therebel22@gmail.com>, 586@bugs.x2go.org

Subject: Re: [X2Go-Dev] Bug#586: Bug#586: X2Go session sometimes slows to a crawl

Date: Thu, 20 Aug 2015 20:37:35 +0200

On Wed, Aug 19, 2015 at 9:03 PM, Marc V <therebel22@gmail.com> wrote:
> Hello,
>
> same problem here. Afters hours (3-4H, random) , session becomes slow, clic
> very long to respond. No network problem, no load or CPU high on server,
> everything is normal on server.
>
> I was unable to reproduce at any time. and i wad unable to guess what KDE4
> app is problem. Application that are used :  Dolphin, Open Office Calc,
> sometimes Firefox
>
> Closing session et restart it is OK.

Doe you mean suspending and reconnecting or a completely new session?

Uli

Message #40 received at 586@bugs.x2go.org (full text, mbox, reply):

From: Marc V <therebel22@gmail.com>

To: Ulrich Sibiller <uli42@gmx.de>

Cc: 586@bugs.x2go.org

Subject: Re: [X2Go-Dev] Bug#586: Bug#586: X2Go session sometimes slows to a crawl

Date: Thu, 20 Aug 2015 20:39:57 +0200

[Message part 1 (text/plain, inline)]

2015-08-20 20:37 GMT+02:00 Ulrich Sibiller <uli42@gmx.de>:

> On Wed, Aug 19, 2015 at 9:03 PM, Marc V <therebel22@gmail.com> wrote:
> > Hello,
> >
> > same problem here. Afters hours (3-4H, random) , session becomes slow,
> clic
> > very long to respond. No network problem, no load or CPU high on server,
> > everything is normal on server.
> >
> > I was unable to reproduce at any time. and i wad unable to guess what
> KDE4
> > app is problem. Application that are used :  Dolphin, Open Office Calc,
> > sometimes Firefox
> >
> > Closing session et restart it is OK.
>
> Doe you mean suspending and reconnecting or a completely new session?
>
> Uli
>

It is suspending and reconnecting.

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Message #45 received at 586@bugs.x2go.org (full text, mbox, reply):

From: "James Kohout" <jameskohout@active-semi.com>

To: <586@bugs.x2go.org>

Subject: X2Go session sometimes slows to a crawl

Date: Thu, 3 Sep 2015 08:56:52 -0500

[Message part 1 (text/plain, inline)]

Package: x2goserver

Version: 4.0.1.19-3.el6

 

Hello,

I see the same thing on the latest windows client.   After a while it slows
to a crawl for a few minutes, then gets better, then slows down again.  No
network issues,  no server congestion, etc.   I also have another session
(true No Machine client) to another local server, and it does not slow down
during this time, so I do not think it is a client issue.

 

 

Client OS: Windows 7

Client Version:  4.0.5.0 - (With ALL the font packages installed)

Connecting to GNOME Session

Server OS:  Linux 2.6.32-504.8.1.el6.x86_64  Oracle Linux Server release 6.6

nx-libs package version:  3.5.0.31-1.el6

 

 

 

 


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Message #48 received at control@bugs.x2go.org (full text, mbox, reply):

From: Juri Grabowski <x2go-dev@jugra.de>

To: control@bugs.x2go.org

Cc: x2go-dev@jugra.de

Subject: closing 586

Date: Mon, 15 Jan 2024 21:45:23 +0100

close 586 
thanks

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