<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi all,<div><br></div><div>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.</div><div><br></div><div>I open a terminal (gnome-terminal) an do a cat /var/log/sysolg.</div><div><br></div><div>The old server (NX3.4) uses 30kb traffic for 2 seconds to cat the logfile.</div><div>The new server (NX3.5) uses 750kb traffic for 34 seconds to cat the logfile.</div><div><br></div><div><div><div>Am 28.03.2012 um 14:05 schrieb Eugene San:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hi all,<br><br>I want to discuss the subject.<br><br>Story goes like this:<br>About 6 months, while planning upgrade (Ununtu 11.04->11.10) I've<br>noticed severe degradation in speed of NX sessions.<br>At the time I've decided to wait until LTS release, while being sure<br>issue is related to GUI changes in Ubuntu.<br>Recently I've reviewed the situation with 12.04 and found that problem<br>is still there and related to NX and not to GUI changes in Ubuntu.<br>My guess is that surrounding changes in distribution cause NX agent to<br>misbehave.<br><br>Overall user experience became unusable even on LAN and localhost connections.<br><br>Now to the details:<br>1. Screen redraw operations lags heavily even on local links.<br> Instant (sub 0.5sec) on U10.04, up to 5 seconds on U12.04.<br>2. Constant screen redraws consume much more traffic.<br> Sub 100kbps on U10.04.<br> 10mbps+ on U12.04 (Creating session with WAN quality settings and<br>reconnecting with LAN, lowers bandwidth to sub 1mbps but picture<br>quality suffers)<br>3. NX4 on U12.04 is faster 3x (in average) than 3.5 on U10.04.<br>4. NX3.5 on U12.04 is slower 3x then NX3.5 on U10.04 (some tests are<br>x1000 slower!)<br>5. Hybrid NX3.5<->NX4 is slow with NX3.5 as server and fast with NX4 as server.<br><br>Some details:<br> * I've evaluated both 32 and 64 bit platforms.<br> * I've compared fresh Ubuntu 10.04 and 12.04.<br> * Both Nomachine NX binaries and X2GO binaries (ppa:x2go/ppa) were tested.<br> * For reference I've performed NX4 and hybrid NX3.5<->NX4 testing.<br> * Tested several usecases:<br> * Desktop with manual operation of terminal, webbrowser and random<br>GUI application.<br> * Rootless UnixBench in graphics mode. (Note in 64bit test caches NX agent!)<br> * Desktop UnixBench in graphics mode. (Note in 64bit test caches NX agent!)<br> * Rootless Xterm with scrolling text (ls -R /)<br><br>Please provide your feedbacks.<br>_______________________________________________<br>X2Go-Dev mailing list<br><a href="mailto:X2Go-Dev@lists.berlios.de">X2Go-Dev@lists.berlios.de</a><br>https://lists.berlios.de/mailman/listinfo/x2go-dev<br><br></div></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div>Stephan Diehl</div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><span class="Apple-style-span" style="font-size: small; "><font size="1.9px">Geschäftsführer</font></span><span class="Apple-style-span" style="font-size: small; "><br></span><span class="Apple-style-span" style="font-size: small; "><br></span><div style="font-size: medium; "><span class="Apple-style-span" style="font-size: small; "><font color="#0065bf">Open </font></span><span class="Apple-style-span" style="font-size: small; "><font color="#666d64">Solutions </font></span><span class="Apple-style-span" style="font-size: small; ">GmbH & Co. KG</span><span class="Apple-style-span" style="font-size: small; "><br></span><span class="Apple-style-span" style="font-size: small; ">Luisenweg 109</span><span class="Apple-style-span" style="font-size: small; "><br></span><span class="Apple-style-span" style="font-size: small; ">20537 Hamburg</span><span class="Apple-style-span" style="font-size: small; "><br></span><span class="Apple-style-span" style="font-size: small; "><br></span><span class="Apple-style-span" style="font-size: small; ">Fon: 040 / 7070806 - 70</span></div><div style="font-size: medium; "><span class="Apple-style-span" style="font-size: small; "></span><span class="Apple-style-span" style="font-size: small; ">Mail:<span class="Apple-style-span" style="font-size: small; "> </span><span class="Apple-style-span" style="font-size: small; "><a href="mailto:%20sebastian.wilde@opensolutions.net" style="color: black; ">stephan.diehl@opensolutions.net</a></span><span class="Apple-style-span" style="font-size: small; "> </span></span></div><div style="font-size: medium; "><span class="Apple-style-span" style="font-size: small; "><br></span><span class="Apple-style-span" style="font-size: small; "><font color="grey"><font size="1,8px">Registergericht: Amtsgericht Hamburg, HRA 105 704<br>Persönlich haftende Gesellschafterin: Open Solutions GmbH<br>Registergericht: Amtsgericht Hamburg, HRB 999 00<br>Geschäftsführer: Stephan Diehl<br>USt-Id-Nr: DE253775678; Steuer-Nr: 46/649/00349</font></font></span></div></div></div></span></span></span>
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