Hi all, same here. I have a Ubuntu 9.04 with x2go based on NX3.4 and now a Ubuntu 11.10 with x2go based on NX3.5.
I open a terminal (gnome-terminal) an do a cat /var/log/sysolg. The old server (NX3.4) uses 30kb traffic for 2 seconds to cat the logfile. The new server (NX3.5) uses 750kb traffic for 34 seconds to cat the logfile. Am 28.03.2012 um 14:05 schrieb Eugene San: > Hi all, > > I want to discuss the subject. > > Story goes like this: > About 6 months, while planning upgrade (Ununtu 11.04->11.10) I've > noticed severe degradation in speed of NX sessions. > At the time I've decided to wait until LTS release, while being sure > issue is related to GUI changes in Ubuntu. > Recently I've reviewed the situation with 12.04 and found that problem > is still there and related to NX and not to GUI changes in Ubuntu. > My guess is that surrounding changes in distribution cause NX agent to > misbehave. > > Overall user experience became unusable even on LAN and localhost connections. > > Now to the details: > 1. Screen redraw operations lags heavily even on local links. > Instant (sub 0.5sec) on U10.04, up to 5 seconds on U12.04. > 2. Constant screen redraws consume much more traffic. > Sub 100kbps on U10.04. > 10mbps+ on U12.04 (Creating session with WAN quality settings and > reconnecting with LAN, lowers bandwidth to sub 1mbps but picture > quality suffers) > 3. NX4 on U12.04 is faster 3x (in average) than 3.5 on U10.04. > 4. NX3.5 on U12.04 is slower 3x then NX3.5 on U10.04 (some tests are > x1000 slower!) > 5. Hybrid NX3.5<->NX4 is slow with NX3.5 as server and fast with NX4 as > server. > > Some details: > * I've evaluated both 32 and 64 bit platforms. > * I've compared fresh Ubuntu 10.04 and 12.04. > * Both Nomachine NX binaries and X2GO binaries (ppa:x2go/ppa) were tested. > * For reference I've performed NX4 and hybrid NX3.5<->NX4 testing. > * Tested several usecases: > * Desktop with manual operation of terminal, webbrowser and random > GUI application. > * Rootless UnixBench in graphics mode. (Note in 64bit test caches NX > agent!) > * Desktop UnixBench in graphics mode. (Note in 64bit test caches NX agent!) > * Rootless Xterm with scrolling text (ls -R /) > > Please provide your feedbacks. > _______________________________________________ > X2Go-Dev mailing list > X2Go-Dev@lists.berlios.de > https://lists.berlios.de/mailman/listinfo/x2go-dev > Stephan Diehl Geschäftsführer Open Solutions GmbH & Co. KG Luisenweg 109 20537 Hamburg Fon: 040 / 7070806 - 70 Mail: stephan.di...@opensolutions.net Registergericht: Amtsgericht Hamburg, HRA 105 704 Persönlich haftende Gesellschafterin: Open Solutions GmbH Registergericht: Amtsgericht Hamburg, HRB 999 00 Geschäftsführer: Stephan Diehl USt-Id-Nr: DE253775678; Steuer-Nr: 46/649/00349
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