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Virtual Distro Dispatcher - A light-weight Desktop-as-a-Service solution
- 5. Virtualization constraints 1/2 C1 – Open Source Software C2 – HVM support C3 – Quick and easy to restore C4 – Simmetric Multi Processing (SMP) OS guest support C5 – User level kernel execution C6 – Integrated VNC Server
- 6. Virtualization constraints 2/2 C1 C2 C3 C4 C5 C6 VMware ✔ ✔ ✔ ✔ Virtualbox ✔ ✔ ✔ UML ✔ ✔ ✔ Qemu ✔ ✔ ✔ ✔ ✔ XEN ✔ ✔ ✔ ✔ ✔
- 9. How to dispatch Linux on terminals 1) Start your VM from the VDD central station 2) Start Xephyr (Xephyr -fullscreen -ac :1) on a thin client 3) Export the DISPLAY variable within the VM: export DISPLAY=”ip_of_vdd:1” 4) startkde or gnome-session from the VM 5) Enjoy your dispatched distribution As regard OS like Windows, VNC protocol can be used.
- 10. VDD Architecture
- 11. A simple (localhost) example
- 13. Only Linux could be virtualized
- 14. User level kernel execution
- 15. UML development is slow and poorly documented
- 17. Paravirtualization and HVM support
- 18. Other operating system (e.g. Ms. Windows or ReactOS) can be virtualized now !! (HVM mode)
- 19. High performance virtualization allows to run Windows XP and Vista on very old PCs (80486 – Pentium) (not recommended but possible)
- 20. Something about performances 1/3 A CPU-bound test: John The Ripper
- 21. Something about performances 2/3 A filesystem latency test: lat_fs
- 22. Something about performances 3/3 A memory mapping test: bw_mmap_rd (open2close)
- 24. Buy 1 next generation VDD Server + 10 Trashware diskless thin clients for free (hardware: -83% ; Energy*: -18.5% )
- 25. Buy 1 next generation VDD Server + 10 mini ITX stations (hardware: -72% ; Energy*: -71.4% ) * Ref. www.eu-energystar.org/it/it_007c.shtml. Each thin client is considered to be powered on 6h per day.
- 31. Links and contacts The official Virtual Distro Dispatcher website: e-mail: info@vdd-project.org www: http://www.vdd-project.org Salvatore CRISTOFARO e-mail: cristofaro@dis.uniroma1.it Flavio BERTINI e-mail: flavio.bertini@dis.uniroma1.it D. Davide LAMANNA e-mail: davide.lamanna@dis.uniroma1.it www: http://www.dis.uniroma1.it/~lamanna Roberto BALDONI e-mail: roberto.baldoni@dis.uniroma1.it www: http://www.dis.uniroma1.it/~baldoni