Re: [X2Go-User] Web browser performance over X2Go

[Walid MOGHRABI]

Also encountered that (and even stranger things related to video playing with 
Youtube for example but not limited to it ...). 
Did you try to disable hardware acceleration and smooth scrolling in the 
advanced preferences ? 


I did and it gaves me better results. 


Regards, 




Walid MOGHRABI 
Exploitation / Operation 
Id SKYPE : walid_smagic 



- Mail original -

De: "Jordan Sokolic" <jor...@twiggle.com> 
À: "Stefan Seidel" <ssei...@vub.de> 
Cc: x2go-user@lists.x2go.org 
Envoyé: Lundi 29 Août 2016 10:45:46 
Objet: Re: [X2Go-User] Web browser performance over X2Go 


Stefan, thank you. I did not think to restart the browser when I tried to 
toggle that setting. This is a great improvement! 
Too bad they are deprecating this feature. The video you shared in the link 
demonstrates exactly my experience. I hope the FF team decides to continue 
supporting this legacy mode. 
Thanks again for sharing this. 


Jordan 


On Mon, Aug 29, 2016 at 9:36 AM, Stefan Seidel < ssei...@vub.de > wrote: 




It's still there in the 51.0.a1 nightly build. 

There's a conversation on reddit about it (started by me) and also a bug 
report: 

https://www.reddit.com/r/firefox/comments/4nfmvp/ff_47_unbearable_slow_over_remote_x11/
 
https://bugzilla.mozilla.org/show_bug.cgi?id=1263222 

Stefan Seidel 

- 
On Sunday 28 August 2016 23:25:50 Stefan Seidel wrote: 
> The variables gone by 50.Â~ 
> 
> -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ 
> -_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and 


> Hosting. Knowledgeable human assistance, not telephone trees or script 
> readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 
> 246-6874. 
> On Mon, 29 Aug 2016, Stefan Seidel wrote: 
> > Date: Mon, 29 Aug 2016 08:11:53 +0200 
> > From: Stefan Seidel < ssei...@vub.de > 
> > To: Jordan Sokolic < jor...@twiggle.com > 
> > Cc: x2go-user@lists.x2go.org 
> > Subject: Re: [X2Go-User] Web browser performance over X2Go 
> > 
> > Hi Jordan, 
> > 
> > Firefox 47 disabled XRender support by default. Go to about:settings and 
> > search for xrender, set the property to true. That made it a lot better 
> > for 
> > me. 
> > 
> > Stefan 
> > 
> >> Date: Sat, 27 Aug 2016 12:34:32 +0300 
> >> From: Jordan Sokolic < jor...@twiggle.com > 
> >> To: x2go-user@lists.x2go.org 
> >> Subject: [X2Go-User] Web browser performance over X2Go 
> >> 
> >> Message-ID: 
> >> <CAFbFDtijPrfER_DEu+zM11N08FKb_Zn-WdUEkR99AQN1zZ9o= q...@mail.gmail.com > 
> >> 
> >> Content-Type: text/plain; charset="utf-8" 
> >> 
> >> Hello, 
> >> I use a web frontend for work that runs locally on my server over X2Go 
> >> for 
> >> about one year with success. 
> >> Some months ago I noticed a significant decrease in performance when 
> >> using 
> >> Firefox. My server is running Ubuntu 16.04 with MATE desktop, Windows 10 
> >> client. Up to Firefox version 39.0.3 performance of loading pages, 
> >> scrolling, browsing etc. was nearly flawless over a 5Mbit WAN link (with 
> >> the exception of embedded video elements). However it seems the release 
> >> of 
> >> Firefox version 40.0 introduced some changes in rendering (see 
> >> https://www.mozilla.org/en-US/firefox/40.0/releasenotes/ ) that do not 
> >> play 
> >> nice with X2Go. Further reduction in performance was noticed in versions 
> >> 46.0 and 48.0. The current release (48.0) even has trouble rendering a 
> >> plain text document without lag and choppiness. 
> >> I have tried toggling various flags relating to graphics, compositing, 
> >> rendering, etc. to no avail. 
> >> To work around this problem the only solution I have found is to forward 
> >> ports over a separate SSH tunnel and browse locally, but this is 
> >> cumbersome 
> >> to set up every time I need to connect. 
> >> I have preferred Firefox to Chrome over X2Go because the latter has 
> >> always 
> >> been unusably slow; now they are both similarly choppy and slow. 
> >> Has anyone else noticed this? 
> >> Any advice or help would be appreciated. 
> >> 
> >> Regards 
> >> 
> >> Jordan 



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Re: [X2Go-User] Web browser performance over X2Go

[Jordan Sokolic]

Stefan, thank you. I did not think to restart the browser when I tried to
toggle that setting. This is a great improvement!
Too bad they are deprecating this feature. The video you shared in the link
demonstrates exactly my experience. I hope the FF team decides to continue
supporting this legacy mode.
Thanks again for sharing this.

Jordan

On Mon, Aug 29, 2016 at 9:36 AM, Stefan Seidel <ssei...@vub.de> wrote:

> It's still there in the 51.0.a1 nightly build.
>
>
>
> There's a conversation on reddit about it (started by me) and also a bug
> report:
>
>
>
> https://www.reddit.com/r/firefox/comments/4nfmvp/ff_47_
> unbearable_slow_over_remote_x11/
>
> https://bugzilla.mozilla.org/show_bug.cgi?id=1263222
>
>
>
> Stefan Seidel
>
>
>
> -
>
> On Sunday 28 August 2016 23:25:50 Stefan Seidel wrote:
>
> > The variables gone by 50.Â~
>
> >
>
> > -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
> -_-_-_-_-_-_-_-_
>
> > -_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and
>
> > Hosting. Knowledgeable human assistance, not telephone trees or script
>
> > readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or
> (800)
>
> > 246-6874.
>
> > On Mon, 29 Aug 2016, Stefan Seidel wrote:
>
> > > Date: Mon, 29 Aug 2016 08:11:53 +0200
>
> > > From: Stefan Seidel <ssei...@vub.de>
>
> > > To: Jordan Sokolic <jor...@twiggle.com>
>
> > > Cc: x2go-user@lists.x2go.org
>
> > > Subject: Re: [X2Go-User] Web browser performance over X2Go
>
> > >
>
> > > Hi Jordan,
>
> > >
>
> > > Firefox 47 disabled XRender support by default. Go to about:settings
> and
>
> > > search for xrender, set the property to true. That made it a lot better
>
> > > for
>
> > > me.
>
> > >
>
> > > Stefan
>
> > >
>
> > >> Date: Sat, 27 Aug 2016 12:34:32 +0300
>
> > >> From: Jordan Sokolic <jor...@twiggle.com>
>
> > >> To: x2go-user@lists.x2go.org
>
> > >> Subject: [X2Go-User] Web browser performance over X2Go
>
> > >>
>
> > >> Message-ID:
>
> > >> <CAFbFDtijPrfER_DEu+zM11N08FKb_Zn-WdUEkR99AQN1zZ9o=q...@mail.gmail.com>
>
> > >>
>
> > >> Content-Type: text/plain; charset="utf-8"
>
> > >>
>
> > >> Hello,
>
> > >> I use a web frontend for work that runs locally on my server over X2Go
>
> > >> for
>
> > >> about one year with success.
>
> > >> Some months ago I noticed a significant decrease in performance when
>
> > >> using
>
> > >> Firefox. My server is running Ubuntu 16.04 with MATE desktop, Windows
> 10
>
> > >> client. Up to Firefox version 39.0.3 performance of loading pages,
>
> > >> scrolling, browsing etc. was nearly flawless over a 5Mbit WAN link
> (with
>
> > >> the exception of embedded video elements). However it seems the
> release
>
> > >> of
>
> > >> Firefox version 40.0 introduced some changes in rendering (see
>
> > >> https://www.mozilla.org/en-US/firefox/40.0/releasenotes/) that do not
>
> > >> play
>
> > >> nice with X2Go. Further reduction in performance was noticed in
> versions
>
> > >> 46.0 and 48.0. The current release (48.0) even has trouble rendering a
>
> > >> plain text document without lag and choppiness.
>
> > >> I have tried toggling various flags relating to graphics, compositing,
>
> > >> rendering, etc. to no avail.
>
> > >> To work around this problem the only solution I have found is to
> forward
>
> > >> ports over a separate SSH tunnel and browse locally, but this is
>
> > >> cumbersome
>
> > >> to set up every time I need to connect.
>
> > >> I have preferred Firefox to Chrome over X2Go because the latter has
>
> > >> always
>
> > >> been unusably slow; now they are both similarly choppy and slow.
>
> > >> Has anyone else noticed this?
>
> > >> Any advice or help would be appreciated.
>
> > >>
>
> > >> Regards
>
> > >>
>
> > >> Jordan
>
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Re: [X2Go-User] Web browser performance over X2Go

[Robert Dinse]

 The variables gone by 50.˜

-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
 Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
   Knowledgeable human assistance, not telephone trees or script readers.
 See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Mon, 29 Aug 2016, Stefan Seidel wrote:


Date: Mon, 29 Aug 2016 08:11:53 +0200
From: Stefan Seidel <ssei...@vub.de>
To: Jordan Sokolic <jor...@twiggle.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Web browser performance over X2Go

Hi Jordan,

Firefox 47 disabled XRender support by default. Go to about:settings and
search for xrender, set the property to true. That made it a lot better for
me.

Stefan


Date: Sat, 27 Aug 2016 12:34:32 +0300
From: Jordan Sokolic <jor...@twiggle.com>
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] Web browser performance over X2Go
Message-ID:
<CAFbFDtijPrfER_DEu+zM11N08FKb_Zn-WdUEkR99AQN1zZ9o=q...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello,
I use a web frontend for work that runs locally on my server over X2Go for
about one year with success.
Some months ago I noticed a significant decrease in performance when using
Firefox. My server is running Ubuntu 16.04 with MATE desktop, Windows 10
client. Up to Firefox version 39.0.3 performance of loading pages,
scrolling, browsing etc. was nearly flawless over a 5Mbit WAN link (with
the exception of embedded video elements). However it seems the release of
Firefox version 40.0 introduced some changes in rendering (see
https://www.mozilla.org/en-US/firefox/40.0/releasenotes/) that do not play
nice with X2Go. Further reduction in performance was noticed in versions
46.0 and 48.0. The current release (48.0) even has trouble rendering a
plain text document without lag and choppiness.
I have tried toggling various flags relating to graphics, compositing,
rendering, etc. to no avail.
To work around this problem the only solution I have found is to forward
ports over a separate SSH tunnel and browse locally, but this is cumbersome
to set up every time I need to connect.
I have preferred Firefox to Chrome over X2Go because the latter has always
been unusably slow; now they are both similarly choppy and slow.
Has anyone else noticed this?
Any advice or help would be appreciated.

Regards

Jordan
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Re: [X2Go-User] Web browser performance over X2Go

[Stefan Seidel]

Hi Jordan,

Firefox 47 disabled XRender support by default. Go to about:settings and 
search for xrender, set the property to true. That made it a lot better for 
me.

Stefan

> Date: Sat, 27 Aug 2016 12:34:32 +0300
> From: Jordan Sokolic 
> To: x2go-user@lists.x2go.org
> Subject: [X2Go-User] Web browser performance over X2Go
> Message-ID:
>   
> Content-Type: text/plain; charset="utf-8"
> 
> Hello,
> I use a web frontend for work that runs locally on my server over X2Go for
> about one year with success.
> Some months ago I noticed a significant decrease in performance when using
> Firefox. My server is running Ubuntu 16.04 with MATE desktop, Windows 10
> client. Up to Firefox version 39.0.3 performance of loading pages,
> scrolling, browsing etc. was nearly flawless over a 5Mbit WAN link (with
> the exception of embedded video elements). However it seems the release of
> Firefox version 40.0 introduced some changes in rendering (see
> https://www.mozilla.org/en-US/firefox/40.0/releasenotes/) that do not play
> nice with X2Go. Further reduction in performance was noticed in versions
> 46.0 and 48.0. The current release (48.0) even has trouble rendering a
> plain text document without lag and choppiness.
> I have tried toggling various flags relating to graphics, compositing,
> rendering, etc. to no avail.
> To work around this problem the only solution I have found is to forward
> ports over a separate SSH tunnel and browse locally, but this is cumbersome
> to set up every time I need to connect.
> I have preferred Firefox to Chrome over X2Go because the latter has always
> been unusably slow; now they are both similarly choppy and slow.
> Has anyone else noticed this?
> Any advice or help would be appreciated.
> 
> Regards
> 
> Jordan
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Re: [X2Go-User] Web browser performance over X2Go

[Jordan Sokolic]

Hi,

Unfortunately setting MOZ_DISABLE_IMAGE_OPTIMIZE=1 did not make a
difference. Thanks though.

On Sat, Aug 27, 2016 at 6:36 PM, Ulrich Sibiller  wrote:

> On Sat, Aug 27, 2016 at 5:31 PM, Jordan Sokolic 
> wrote:
> > I should have probably mentioned that this lag also occurs when running
> the
> > X2Go client directly on the server itself, so it doesn't seem to be an
> issue
> > with the WAN link, Windows 10, etc. For the sake of comparison I ran
> Firefox
> > 48.0 via X2Go on another machine on the same 100Mbit LAN as the server,
> then
> > ran it again in a forwarded X11 SSH session (compression enabled); the
> > latter demonstrated no noticeable lag while the X2Go session struggled to
> > keep up.
>
> Does setting MOZ_DISABLE_IMAGE_OPTIMIZE=1 (env var for firefox) help?
>
> Uli
>
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Re: [X2Go-User] Web browser performance over X2Go

[Jordan Sokolic]

I should have probably mentioned that this lag also occurs when running the
X2Go client directly on the server itself, so it doesn't seem to be an
issue with the WAN link, Windows 10, etc. For the sake of comparison I ran
Firefox 48.0 via X2Go on another machine on the same 100Mbit LAN as the
server, then ran it again in a forwarded X11 SSH session (compression
enabled); the latter demonstrated no noticeable lag while the X2Go session
struggled to keep up.

On Sat, Aug 27, 2016 at 1:34 PM, Robert Dinse  wrote:

>
>  I wonder if the issue isn't specific to Windows 10, I am using
> Firefox 50,
> the development version, on a Ubuntu 16.04 workstation (an old Mac Pro 1,1
> with Ubuntu 16.04 64 bit) and I do not see any issues with lag.
>
> -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
> -_-_-_-_-_-_-_-_-_-
>  Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
>Knowledgeable human assistance, not telephone trees or script readers.
>  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874
> .
>
> On Sat, 27 Aug 2016, Jordan Sokolic wrote:
>
> Date: Sat, 27 Aug 2016 12:34:32 +0300
>> From: Jordan Sokolic 
>> To: x2go-user@lists.x2go.org
>> Subject: [X2Go-User] Web browser performance over X2Go
>>
>>
>> Hello,
>> I use a web frontend for work that runs locally on my server over X2Go for
>> about one year with success.
>> Some months ago I noticed a significant decrease in performance when using
>> Firefox. My server is running Ubuntu 16.04 with MATE desktop, Windows 10
>> client. Up to Firefox version 39.0.3 performance of loading pages,
>> scrolling, browsing etc. was nearly flawless over a 5Mbit WAN link (with
>> the exception of embedded video elements). However it seems the release of
>> Firefox version 40.0 introduced some changes in rendering (see
>> https://www.mozilla.org/en-US/firefox/40.0/releasenotes/) that do not
>> play
>> nice with X2Go. Further reduction in performance was noticed in versions
>> 46.0 and 48.0. The current release (48.0) even has trouble rendering a
>> plain text document without lag and choppiness.
>> I have tried toggling various flags relating to graphics, compositing,
>> rendering, etc. to no avail.
>> To work around this problem the only solution I have found is to forward
>> ports over a separate SSH tunnel and browse locally, but this is
>> cumbersome
>> to set up every time I need to connect.
>> I have preferred Firefox to Chrome over X2Go because the latter has always
>> been unusably slow; now they are both similarly choppy and slow.
>> Has anyone else noticed this?
>> Any advice or help would be appreciated.
>>
>> Regards
>>
>> Jordan
>>
>>
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Re: [X2Go-User] Web browser performance over X2Go

[Robert Dinse]

 I wonder if the issue isn't specific to Windows 10, I am using Firefox 50,
the development version, on a Ubuntu 16.04 workstation (an old Mac Pro 1,1
with Ubuntu 16.04 64 bit) and I do not see any issues with lag.

-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
 Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
   Knowledgeable human assistance, not telephone trees or script readers.
 See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

On Sat, 27 Aug 2016, Jordan Sokolic wrote:


Date: Sat, 27 Aug 2016 12:34:32 +0300
From: Jordan Sokolic 
To: x2go-user@lists.x2go.org
Subject: [X2Go-User] Web browser performance over X2Go

Hello,
I use a web frontend for work that runs locally on my server over X2Go for
about one year with success.
Some months ago I noticed a significant decrease in performance when using
Firefox. My server is running Ubuntu 16.04 with MATE desktop, Windows 10
client. Up to Firefox version 39.0.3 performance of loading pages,
scrolling, browsing etc. was nearly flawless over a 5Mbit WAN link (with
the exception of embedded video elements). However it seems the release of
Firefox version 40.0 introduced some changes in rendering (see
https://www.mozilla.org/en-US/firefox/40.0/releasenotes/) that do not play
nice with X2Go. Further reduction in performance was noticed in versions
46.0 and 48.0. The current release (48.0) even has trouble rendering a
plain text document without lag and choppiness.
I have tried toggling various flags relating to graphics, compositing,
rendering, etc. to no avail.
To work around this problem the only solution I have found is to forward
ports over a separate SSH tunnel and browse locally, but this is cumbersome
to set up every time I need to connect.
I have preferred Firefox to Chrome over X2Go because the latter has always
been unusably slow; now they are both similarly choppy and slow.
Has anyone else noticed this?
Any advice or help would be appreciated.

Regards

Jordan


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