Very Poor Performance

[Transcom]

This was working beautifully, but no longer.  I have an Ubuntu box that I 
access from windows xp using xdmcp.  But now, when I scroll the mouse in a 
browser, or type, or whatever, there is often an unacceptably long delay 
before anything happens.  It can sometimes take as long as a second until 
something happens.  It's basically no longer usable.


Strange thing is that sometimes it works fine (not often though).  And 
everything usually works fine when I first open the session, lasting for a 
few minutes, and then it goes to shit.


I think it started happening after I tried to install Tarantella.  When I 
installed Tarantella, I noticed that it was installing something from cywin, 
but I wasn't really paying attention as to exactly what.  I've removed 
anything to do with Tarantella, and I re-installed cygwin x, but the problem 
remains.


I pretty sure the problem is on the windows side.  The ubuntu box runs fine 
on its own, not over the network.  There don't seem to be any other network 
problems.  And when I click on the cygwin x icon in the windows tool bar, I 
see the same kind of delay shrinking or expanding the window.


I hope that someone can give me some ideas how to fix this.

Thanks

Dan 


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Very Poor Performance

[Transcom]

This was working beautifully, but no longer.  I have an Ubuntu box that I
access from windows xp using xdmcp.  But now, when I scroll the mouse in a
browser, or type, or whatever, there is often an unacceptably long delay
before anything happens.  It can sometimes take as long as a second until
something happens.  It's basically no longer usable.

Strange thing is that sometimes it works fine (not often though).  And
everything usually works fine when I first open the session, lasting for a
few minutes, and then it goes to shit.

I think it started happening after I tried to install Tarantella.  When I
installed Tarantella, I noticed that it was installing something from cywin,
but I wasn't really paying attention as to exactly what.  I've removed
anything to do with Tarantella, and I re-installed cygwin x, but the problem
remains.

I pretty sure the problem is on the windows side.  The ubuntu box runs fine
on its own, not over the network.  There don't seem to be any other network
problems.  And when I click on the cygwin x icon in the windows tool bar, I
see the same kind of delay shrinking or expanding the window.

I hope that someone can give me some ideas how to fix this.

Thanks

Dan

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Re: cygwin

[Igor Peshansky]

Venkateswarlu,

.  I would also recommend reading
 before posting again.  Based on the
limited clues in your email, I'm redirecting this to the cygwin-xfree
mailing list.

On Sun, 27 Aug 2006, Venkateswarlu K wrote:

> Hello sir,
>
>   I am venkateswarlu,i installed cygwin on windows xp
>   now i am display setting problem.ns-2 nam x window
> is not starting.
>   plz help me.
>
>
> vemkateswarlu.k

You'd have to add much more detail: what fails, in what way, exactly what
steps are required to reproduce the problem...  See the above link to the
problem reporting guidelines.
Igor
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Re: slow paints despite fast hardware

[Cary Jamison]

Phlip wrote:
> Peter Woo wrote:
>
>> Most of the
>> cryptic xf86config that you see on Linux is not applicable to Cygwin.
>
> Yay
>
>> I guess I am confused like the other folks on what else you could do
>> to tune up Cygwin/X.  Just to limit the scope a bit - do you run
>> slow xterm even just by opening up a local xterm on your Windows XP
>> (display 127.0.0.1:0.0)?
>
> The local xterm (the one that anchors the server) is fast.
>
>  Remote Konsole - super slow
>  Remote Gedit - slow
>  Remote Xterm - fast!
>
> At a guess, are some programs pushing pixels across the wire, to
> assemble text, while some programs use the local fonts?

It looks like you and Larry kinda got off on the wrong foot there.  Try to 
get beyond that, and look at the help he tried to give you, but you 
ignored...

He already indicated to you that there are no performance switches to turn 
on/off.

He also asked you to follow the proper reporting guidelines, which often 
give other people on the list clues as to what may be wrong in your 
installation and/or configuration.



However, one more suggestion for you...if you go back and read that FAQ 
entry again ...



it says that you may have to disable firewall/VPN/etc. software thay may 
have installed its own TCP/IP stack.  Often, disabling is not enough, you 
have to completely uninstall it.  This isn't based on my own experience, but 
from other comments on this list, so you may want to search the archives 
more for what software often causes these kinds of problems.


Cary




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Re: slow paints despite fast hardware

[Phlip]

Cary Jamison wrote:




it says that you may have to disable firewall/VPN/etc. software thay may
have installed its own TCP/IP stack.  Often, disabling is not enough, you
have to completely uninstall it.  This isn't based on my own experience, but
from other comments on this list, so you may want to search the archives
more for what software often causes these kinds of problems.


That would make everything equally slow. Right now, XTerm is fast and
Gedit & Konsole are slow. (Gnome and KDE, respectively.)

The KDE FAQ also didn't have a good suggestion, so I seem to be stuck
between FAQs here...

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 Phlip
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Re: slow paints despite fast hardware

[Peter Farley]

PMFJIH, but is the WinXP screen resolution
*substantially* different from the ubuntu screen
resolution?  I do not know if it solves anything, but
could a big difference in the screen resolutions
explain observably slower paints?

Just a thought.

Peter

--- Phlip <[EMAIL PROTECTED]> wrote:

 
> My Cygwin's X server generates the slowest GUIs on
> my workstation. The
> rest handle simple repaints in user-time. I have
> observed this
> problem, off and on, over several different
> platforms and
> configurations, for over a year by now, and it has
> limited my ability
> to make Cygwin productive. The problem's tenacity
> makes me think it is
> commonly reported and easy to fix. My inability to
> read the various
> xinitrc-related batch files, and to Google for their
> documentation and
> online FAQs, has told me simply that there is
> something that I don't
> know how to even ask about.
> 
> So I ask my question as a metaphor. Because I have
> experience with GUI
> systems that ship in a safe configuration, instead
> of the fast
> configuration, I ask if this is the case for
> Cygwin's X server.
> 
> Things go downhill from there, but I'm not sure if
> any better metaphor
> were possible...
> 
> The question remains: Where do I start the
> investigate, and what RC
> files and setting lines might control the situation?
> 
> -- 
>   Phlip


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Re: slow paints despite fast hardware

[Phlip]

Peter Farley wrote:


PMFJIH, but is the WinXP screen resolution
*substantially* different from the ubuntu screen
resolution?  I do not know if it solves anything, but
could a big difference in the screen resolutions
explain observably slower paints?


Rootless?

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Re: slow paints despite fast hardware

[Phlip]

Peter Farley wrote:


PMFJIH


Here are animations of the effect:

http://www.zeroplayer.com/fastXterm.avi
http://www.zeroplayer.com/slowKde.avi

Download those; don't just click on them.

Gnome is slow too, but I'm open to the suggestion that KDE and Gnome
have similar bugs that should be pursued separately. (On /their/
mailing lists!;)

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