I have been trying out various OSes in Hyper-V environment but one thing that I am noticing is its slow installation process. Even installling Windows guest OSes takes a long time. However, once intergration service is installed on Windows guest OSes, performance improves.
However, linux in Hyper-V is out of question yet. I tried to install 32, 64 bit Debian, Ubuntu Desktop/Server but Debian is the only distribution that I was able to be patient enough to complete the installation. Debian base installation without GUI took a couple hours, where text frame buffer was horrible, almost unbareable, I had to wait about 10 seconds for each page to come up. All other distributions, I waited about a couple hours too but it did not even get into the installation screen so I gave up.