Hi Michal, Michal Rybárik schrieb am 28.04.2015 20:07: > I found solution (better say workaround) for graphics performance > problems under new LTSP, which were reported few months ago by me, > and by Helmut few weeks later. It i now clear that it is not problem > in LTSP itself, neither X window manager, but somenthing is broken > probably inside X. I was doing these tests with Radeon driver and > also SIS driver, and i've got same results so this is probably nor > related to graphics chipset/driver. > > I have found that performance problem depends on X server which > running inside thin client, and it does not depend on version of > LTSP/XDMCP server. If I use any of current distributions (*ubuntu > 14, debian 7, opensuse 13, ...) on thin client, then graphics > performance is very poor. If I use much older distribution on X > client (while connecting to the same LTSP/XDMCP server with current > distribution), performance is much better. Again - to get very good > performance, I can run new distribution on terminal server, but I > have to run very old distribution on thin clients. > > To compare results, I did two tests with apps, where we could > clearly see the difference:
you really did a lot of work and I greatly appreciate it that you took the time to run all these test. Very interesting! Now we are faced with the problem, what to do with the new information, you researched. Has anybody on this list a clue, how to handle this, even a solution? > Unfortunately I don't know how to fix it with current distributions, > but I'm happy that If I run ~7 years old openSUSE 11.2 on thin > client, performance problems are gone.... :o) Do the old versions of the client-xserver cooperate well with current xservers on the server? Aren't there lots of missing features? And I would guess, that recent chipsets are not supported (VIA, Openchrome, Intel Atom, etc.). Thanks Michal and best regards Helmut -- ------------------------------------------------------------------------- Helmut Lichtenberg <helmut.lichtenb...@fli.bund.de> Tel.: 05034/871-128 Institut für Nutztiergenetik (FLI) 31535 Neustadt Germany ------------------------------------------------------------------------- ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
