[X2Go-User] Latency Issues

[bmullan]

Nivav

If you are on a Wireless network that is only used by yourself try both 
settings and see which performs better.

The reason I mentioned the local WiFi setup consideration is that some 
folks forget that WiFi being shared by alot of users impacts 
jitter/latency.   Some of this could be addressed by utilizing multiple 
access-points or WiFi routers and then connect those multiple wifi 
devices into a small ethernet hub or switch ... which then connects to 
your WAN connection for internet access.

With multiple wifi devices tho you do need to think about what wifi 
frequency spectrum each is using as you wouldn't want both using the 
same spectrum even if they are configured as different wifi networks for 
your users.

Brian



On 11/24/2013 09:24 AM, Nirav Shah wrote:
> Hi Brian,
>
> Thanks a lot for your tips to improve the performance. So now, I am 
> going to try:
>
> 1) If download link is good then I will try "LAN" settings
> 2) When it is in wireless network , I will try "WAN" settings.
>
> Yesterday, I tried different settings using LAN, WAN, ADSL with 
> simulated latency but I was not able to identify the difference 
> between different settings. I might need to run some youtube video to 
> see the difference.
>
> Thanks again for your help.
>
>
> On Sun, Nov 24, 2013 at 8:36 AM, bmullan <bmullan.mail at gmail.com 
> <mailto:bmullan.mail at gmail.com>> wrote:
>
>     I should have added a little more info related to this.
>
>     I use Amazon's EC2 cloud quite a bit with x2go.
>
>     My AWS EC2 server runs ubuntu 13.10 x64 and I have the x2goserver
>     installed on it with the xubuntu-desktop (re xfce desktop).
>
>     However, on that server I think installing xubuntu-desktop must
>     have auto-magically installed "libjpeg-turbo-progs" because I did
>     not have to install it manually.
>
>     My home PC has an 18Mbps downlink from the internet and a 3 Mbps
>     uplink (I use ATT uVerse).
>
>     Now regards the X2GO client CONNECTION SETTINGS.
>
>     Setting the Client to WAN
>
>       * logging into the AWS x2goserver's XFCE and then running
>         firefox I goto youtube and play a music video.
>       * video is a bit choppy (I know that's subjective <g>).
>
>
>     Setting the Client to LAN (no compression)
>
>       * logging into the AWS x2goserver's XFCE and then running
>         firefox I goto youtube and play a music video.
>       * video is almost perfect - re less choppiness than with Client
>         set to WAN.
>
>     So at least in my experience whether you set the Client to WAN or
>     LAN "may" depend on your downlink speed from the remote x2goserver.
>     If you have a fast enough WAN connection at your client you may
>     find doing no compression at all (re LAN) provides a better
>     experience.
>
>     Lastly, don't forget to consider what your "local" lan consists
>     of.    If your Client PC is on a Wireless network and sharing that
>     Wireless network with
>     multiple other Wireless network users you may find that your
>     wireless network is having a bigger impact on QoS of the video in
>     the remote desktop
>     than the remote server, local PC or the WAN.
>
>     my .02
>     Brian Mullan
>
>
>
>
>
>
>
>     On 11/24/2013 07:51 AM, bmullan wrote:
>>     Mike, Shah et al
>>
>>     I've used libturbo-jpeg for a couple years with x2go after I
>>     first learned about it.
>>
>>     You might check your Distro...  but at least for Ubuntu I believe
>>     libturbo-jpeg is the default installed by Ubuntu now.
>>
>>     */NOTE:   in the following - I _did have to_ install
>>     "libjpeg-turbo-progs" separately /*
>>
>>     On my Ubuntu 13.10 x64 system if I run Synaptic and search for
>>     "libturbo" I find:
>>
>>         */Independent JPEG Group's JPEG runtime library (dependency
>>         package) /*
>>         *//*
>>         */libjpeg8 dependency package, depending on libjpeg-turbo8./*
>>
>>     You might do the same on your Distro to find out what libjpeg is
>>     being used today.
>>
>>     Brian
>>
>>
>
>
>
>
> -- 
> Thanks,
>
> Nirav Shah
> (C) (412) 296-9491

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