[FreeNX-kNX] NX shadow sessions are very slow

[Jeffrey Parker]

I have been using FreeNX server to access computers remotely for a while
and everything seems to run very fast and it works great but when someone
shadows a session they are seeing a lot of lag when doing anything. The
person who started the session seems to be unaffected by this extra lag.
Anything the shadower is doing appears very laggy to the shadowee and
anything the shadowee does looks very laggy to the shadower but the
shadowee does not seem to see lag on what they are doing. Connection speed
does not seem to be the issue and I am unable to find any resources that
are bottlenecking on the computer running FreeNX server. The client that I
am using is the regular NX client from nomachine. I have tested it on
several different computers most of them are Intel processors Core i7 or
Core2 Quad. 8GB or 12GB of RAM, solid state drives (OCZ Vertex 3 120GB).
The internet connection speed is 20Mbps download and 3Mbps upload but speed
tests regularly show between 40 and 60 download and between 4 and 8 on the
upload. There is maybe 1 other NX session running on the internet
connection to a different computer, also the ping on the connection is
normally between 20ms and 60ms to the places that are connecting to the NX
server. Are there any suggestions on speeding up the shadow sessions? The
quality of the jpeg does not seem to make any difference on the speed.
Lowering resolution is a possibility but would prefer to avoid it.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/freenx-knx/attachments/20120816/e8ccf840/attachment.html>