(Fwd) [rewind-patches] Prototype implementation of a shared me

[Jürgen Schmied]

Might be interesting...

------- Weitergeleitete Nachricht / Forwarded message -------
Von:            	Peter Hunnisett <peter at transgaming.com>
An:             	rewind-patches at sourceforge.net
Betreff:        	[rewind-patches] Prototype implementation of a shared memory winserver
Datum:   	Wed, 11 Dec 2002 21:24:52 -0500

Hi,
  attached is a patch, against the present rewind tree, which implements 
a functional prototype of a shared memory wineserver. The prototype is 
capable of providing some large speed improvements (5x with semaphores) 
through a reduced number of context switches and kernel calls. Only 
certain wineserver calls will be executed through the shared memory 
method the choice of which will be fully configurable.

  TransGaming is donating this code to the ReWind project in the hopes 
that it will encourage other Wine developers to continue to share their 
code under the more open BSD/X11 style license and to help overcome the 
remaining issues with this approach.

  Documentation on the approach and benchmarking of this patch can be 
found at http://www.transgaming.com/papers/shmserver.html shortly.

A quick note for the patch as it is somewhat prototype:
1) You need to have a writable /tmp since it presently uses named pipes 
for inter thread communication.
2) You will need to set the WINESERVER environment variable to the new 
shared memory wineserver in <wine_root>/server/main/wineserver

  If you have any comments, please feel free to send them to me.

  Additionaly, TransGaming is donating some prototype work that we did 
some time ago on a new wine kernel module approach (kwine).  It is 
incomplete, but may be of interest to anyone wishing to attempt that 
route again.


Regards,
Peter Hunnisett
peter at transgaming.com


--- Ende der weitergeleiteten Nachricht / End of forwarded message ---
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-------------- next part --------------
Hi,
  attached is a patch, against the present rewind tree, which implements 
a functional prototype of a shared memory wineserver. The prototype is 
capable of providing some large speed improvements (5x with semaphores) 
through a reduced number of context switches and kernel calls. Only 
certain wineserver calls will be executed through the shared memory 
method the choice of which will be fully configurable.

  TransGaming is donating this code to the ReWind project in the hopes 
that it will encourage other Wine developers to continue to share their 
code under the more open BSD/X11 style license and to help overcome the 
remaining issues with this approach.

  Documentation on the approach and benchmarking of this patch can be 
found at http://www.transgaming.com/papers/shmserver.html shortly.

A quick note for the patch as it is somewhat prototype:
1) You need to have a writable /tmp since it presently uses named pipes 
for inter thread communication.
2) You will need to set the WINESERVER environment variable to the new 
shared memory wineserver in <wine_root>/server/main/wineserver

  If you have any comments, please feel free to send them to me.

  Additionaly, TransGaming is donating some prototype work that we did 
some time ago on a new wine kernel module approach (kwine).  It is 
incomplete, but may be of interest to anyone wishing to attempt that 
route again.


Regards,
Peter Hunnisett
peter at transgaming.com

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