Hi, just for the record and to let people know about current work focus...
People (esp. John) have reported occurrences of a very sluggish behaviour of various applications when run in X2Go sessions.
We developers can now confirm this. Ubuntu users reported this earlier, Debian user can now also experience such a sluggishness.
Reproduce on Debian: * add squeeze-backports archive to your system * install iceweasel (esr version)This will drag in a libcairo from squeeze backports that is very probably the cause for making some applications very slow within X2Go sessions.
Libcairo is used in all GTK applications and is a layer between GTK and the rendering backend (X11, OpenGL, ...). With some recent version of libcairo the sluggishness got introduced...
@John: so it is not Nagle, I guess...Compare: launch gnome-terminal (uses libcairo) on such a system and xterm (uses direct X11 rendering). Now create some output on standard out and then scroll back the shell history...
Alex has become aware of this on Linux Day Berlin and he has put it on his list with high priority to find a solution/workaround for that.
Greets, Mike -- DAS-NETZWERKTEAM mike gabriel, rothenstein 5, 24214 neudorf-bornstein fon: +49 (1520) 1976 148 GnuPG Key ID 0xB588399B mail: [email protected], http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb
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