One day my cousin, who has extensive experience working as UNIX systems administrator, and is now a project manager, was sharing his frustration about Microsoft’s remote desktop RDP protocol: “It’s synchronous, – said he, – and therefore remote application is waiting for all windows and buttons to be one by one redrawn on your machine, which can be quite slow on slow connections. But it doesn’t only slow down that application which is displaying/redrawing something, it slows down practically everything on server – probably because kernel calls are somehow synchronous too and wait for each other, so everything that uses kernel also becomes slow.”
I was shocked to say the least. The situation was that administrating remotely production server, which is under load and thus connection with which is quite slow, is practically not possible without degrading that server’s performance.
I’ve shared the information with some people in local IT circles, and some MS lowers were very skeptical about this, saying this can not true because MS couldn’t make such a fail. “Didn’t fail because couldn’t fail?” – not a very sound explanation as for me. So I’ve decided to try it out myself.