Sunday 3 November 2019

How to get good video performance for remote access to virtualized computer?


At home, I'd like to move my main Windows installation off of my desktop computer and replace it with a virtualized guest installation on my combined file server, web server and media center. The server is always on so I plan to connect with Remote Desktop locally from my desktop computer, or remotely from a 3G laptop, whenever I want to access this main installation with all programs etc. Windows 7 everywhere (and server needs to keep running it in order to provide Windows Media Center).


When running over LAN from my desktop computer I would really like to be able to stay in the virtualized installation for as many tasks as possible. I've tested running the guest in Windows 7 Virtual PC, connecting to it with standard Remote Desktop, and most things work really really well except that video can be quite choppy. I can see that RDP7's Windows Media Player redirection is working nicely, as WMV files play smoothly, but unfortunately most of the video content I watch is Flash based (seminars, Google TV on Youtube, etc) and doesn't get that speed-boost.


So, can I improve this in some way to get better [Flash/non-WMV] video performance? Can I optimize the setup somehow?


Or are there alternative remote display products with better Flash performance? (I read that Citrix does Flash redirection, but the product suite seems very enterprisy)


My current LAN is 100Mbit, but I can easily upgrade to 1Gbit, if needed.



Answer



After investigating a bit, it looks like some of the virtualization products own remote access solutions are the most promising, such as VirtualBox's VRDP, KVM SPICE and Hyper-V RemoteFX. These are all RDP compatible but do additional stuff to optimize the delivery of "often changing" areas, some by compressing with a lossy codec. I've only tried out VirtualBox VRDP so far, and am unfortunately seeing a fair bit of bugs, but it looks like the basic model works as video does play smoother.


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