Changes between Version 1 and Version 2 of Virtualization
- Timestamp:
- Nov 13, 2006 8:30:24 PM (19 years ago)
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Virtualization
v1 v2 5 5 !VirtualBox is therefore different from mere emulators which do not allow to run any guest code directly but translate every single machine instructions. While emulators theoretically allow running code written for one type of hardware on completely different hardware (say, running 64-bit Windows code on 32-bit hardware), they are typically quite slow. Virtualizers such as !VirtualBox, on the other hand, can achieve near-native performance for the guest code, but can only run guest code that was written for the same target hardware (such as 32-bit Linux on a 32-bit Windows host). 6 6 7 !VirtualBox is also different from so-called "paravirtualization" solutions such as Xen, which require that the guest operating system be modified.7 !VirtualBox is also different from so-called "paravirtualization" solutions such as [http://www.xensource.com/xen/ Xen], which require that the guest operating system be modified. 8 8 9 9 There are several scenarios that make virtualization attractive:
