Mremoteng: VNC Performance

Created on 16 Jun 2017 · 6Comments · Source: mRemoteNG/mRemoteNG

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|Operating system | Windows 10 x64 |
|mRemoteNG version| 1.75.7008.17935 |

First off, great job on the program. My #1 remote connection manager program.
I have several Ubuntu VPS setup with tightvncserver running in them.
I found using mRemoteNG's vnc, the performance is laggy compared to using UltraVNCViewer.
The response time between a click and a visual change is too long. Sometimes a click would even be missed.
So much so, that I've setup UltraVNCViewer as external tool to use instead of the builtin vnc.
I didn't tweak any settings in the UltraVNCViewer, just default.
I would love to not need to use external tool if possible.
Thanks

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jasonhpchu

👍2

Most helpful comment

I have exactly the same performance problem with default mRemoteNG VNC connection being so slow it is almost unusable.

I have also configured UltraVNCViewer as mRemoteNG external tool and left UltraVNCViewer default setting and now mRemoteNG displays VNC like a charm it is now very responsive and nice to work with.

I set the following arguments in mRemoteNG external tool:
vnc-arguments

I made a print-screen. It looks at least VNC is doing some compression and other optimizations:

vnc-window

There is UltraVNCViewer source code available at https://sourceforge.net/p/ultravnc/code/HEAD/tree/UltraVNC%20Project%20Root/

igor2x on 28 Jun 2017

👍2

All 6 comments

I have exactly the same performance problem with default mRemoteNG VNC connection being so slow it is almost unusable.

I have also configured UltraVNCViewer as mRemoteNG external tool and left UltraVNCViewer default setting and now mRemoteNG displays VNC like a charm it is now very responsive and nice to work with.

I set the following arguments in mRemoteNG external tool:
vnc-arguments

I made a print-screen. It looks at least VNC is doing some compression and other optimizations:

vnc-window

There is UltraVNCViewer source code available at https://sourceforge.net/p/ultravnc/code/HEAD/tree/UltraVNC%20Project%20Root/

igor2x on 28 Jun 2017

👍2

Good! The lack of response was starting to make me look like a whiner.
Good to know I'm not the only one.

jasonhpchu on 28 Jun 2017

Thanks for sharing that @igor2x

@jasonhpchu Sorry for the delay, I haven't been able to keep up with everything lately. We can certainly look into performance tuning for the built in vnc. Or at least expose some more options that allow for tuning. It might take us a bit to get to it though.

sparerd on 28 Jun 2017

👍1

Thanks @sparerd
Just having the vnc improvement on your todo list is comforting.

jasonhpchu on 28 Jun 2017

@sparerd We'll have to discuss this further, but I think we might be better off trying to replace VncSharp with some sort of integrated UltraVNC build. That would be a large undertaking, but would gain other features as well...