Hello all,

I am looking for a little bit of explanation on how the X11 session is 
delivered to the X2GO client; and whether improving the performance of the 
local X11 server would improve the overall experience?

As a reference point I ran x11perf while connected to a remote X2GO session 
with the following results:

x11perf -copywinwin10
x11perf - X11 performance program, version 1.2
The X.Org Foundation server version 60900000 on :54.0
from uxbod
Thu Apr 29 15:18:53 2010

Sync time adjustment is 0.0263 msecs.

  36000 reps @   0.1401 msec (  7140.0/sec): Copy 10x10 from window to window
  36000 reps @   0.1460 msec (  6850.0/sec): Copy 10x10 from window to window
  36000 reps @   0.1457 msec (  6860.0/sec): Copy 10x10 from window to window
  36000 reps @   0.1424 msec (  7020.0/sec): Copy 10x10 from window to window
  36000 reps @   0.1450 msec (  6900.0/sec): Copy 10x10 from window to window
 180000 trep @   0.1438 msec (  6950.0/sec): Copy 10x10 from window to window

when I run the same test on my physical laptop which has a NVidia Quadro card I 
get:

x11perf -copywinwin10
x11perf - X11 performance program, version 1.2
The X.Org Foundation server version 10604000 on :0.0
from cyborg
Thu Apr 29 15:19:18 2010

Sync time adjustment is 0.0979 msecs.

2400000 reps @   0.0020 msec (492000.0/sec): Copy 10x10 from window to window
2400000 reps @   0.0021 msec (486000.0/sec): Copy 10x10 from window to window
2400000 reps @   0.0020 msec (502000.0/sec): Copy 10x10 from window to window
2400000 reps @   0.0020 msec (488000.0/sec): Copy 10x10 from window to window
2400000 reps @   0.0020 msec (496000.0/sec): Copy 10x10 from window to window
12000000 trep @   0.0020 msec (493000.0/sec): Copy 10x10 from window to window

Reading one of the NX documents about slow performance it mentions:

"Upgrading to a more recent version of the X server or trying a different video 
driver can surely offer a great boost. For example a hardware accelerated video 
card is recommended to obtain the best speed."

Would one of the devs be able to cast some light on where I should look to tune 
the performance?
-- 
Thanks, Phil
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