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Variable remote desktop performance in different OS choices
promethean
Member
Hey folks,
I'm wondering if this is a phenomenon anyone else has observed, and may have an explanation. I have had highly variable desktop experiences with the only factor I have isolated as the OS
In a single HVM VPS, I created & destroyed/reinstalled 3 different operating systems. Measurable network performance was equivalent, with avg ping time ~30ms 1-2% packet loss in each OS (that's probably my home connection though).
Debian 7.2
Windows 2008
Windows 2012
Debian was a standard install, no extra packages selected at install, followed by XRDP & IceWM for the desktop environment. The Windows setups were also the standard base, no additional roles or features.
Debian, my 1st choice, performed very poorly. Lag was near to a full second in interface responsiveness. I trashed it, changed to the appropriate drivers for Windows, and reinstalled with 2008.
Win 2008 was much better, but still had a very noticeable lag from what I would expected. I trashed it, and reinstalled with 2012
Win 2012 performs perfectly for interface responsiveness, rarely any noticeable lag
This is something I have seen in different providers too: In AWS/EC2, Win 2003 was awful, but 2008 was fine. Ubuntu Server with XRDP & IceWM was awful, Ubuntu Desktop with IceWM was fine. In all cases, services & background RAM usage was minimal.
Comments
I don't think xrdp does a very good job in compression, it is more like a bridge between RDP and VNC protocol.
The native RDP client/server in Windows, on the other hand, does a good job with compression.
@zhuanyi Yes, I agree. It seems to perform much better than VNC, but not as well as native RDP. (I would go with FreeNX if there were a wider client variety, in particular a good HTML5 client) However, I have used XRDP on a 128mb VPS and had responsiveness that was as good as anything I have with Windows. There seems to be a factor beyond protocol & network performance.