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Subject:	Re: Cygwin X11 Server slow performance
To:	cygwin AT cygwin DOT com
References:	<CABxOuY8egyTzYbXGaTeyjt0AC=Wh5KQncmu3tj35KDk4k6hENw AT mail DOT gmail DOT com> <CABxOuY-FqQcjaUBRKc3s2LoRHOPOUTYEh_iOSTh85EquJiGLYw AT mail DOT gmail DOT com>
From:	Yaakov Selkowitz <yselkowitz AT cygwin DOT com>
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Message-ID:	<5d579671-213c-c742-05b2-b771a827b6f5@cygwin.com>
Date:	Sun, 29 Apr 2018 21:58:59 -0500
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In-Reply-To:	<CABxOuY-FqQcjaUBRKc3s2LoRHOPOUTYEh_iOSTh85EquJiGLYw@mail.gmail.com>

On 2018-04-29 21:52, Paul Sheer wrote:

> I am trying to use the Cygwin X11 Server on Windows 64-bit as follows:
> 
>       C:\cygwin64\bin>XWin.exe -ac -listen tcp
> 
> (Note this is on a private LAN without Internet access.)
> 
> The X Server renders perfectly well and my favorite applications do
> start up and run.
> 
> However performance is extremely slow -- it is slightly too slow to be usable.
> 
> For instance I tried some graphical text editors, and a [PageDown]
> press take 0.25 seconds to render: Whereas on a commercial X Server
> running side-by-side on the same Windows desktop renders in <0.03
> seconds.
> 
> I am a bit confused if this is intended this way: i.e. is this just a
> demonstration of the capabilities of CygWin, or is it actually being
> used by anyone?  I ask because there are no reports of anyone finding
> the X Server slow, yet the software has been many years in release.

Cygwin/X is most definitely being used, and this might help:

https://x.cygwin.com/docs/ug/using-shared-memory.html

-- 
Yaakov

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