Linked by Thom Holwerda on Mon 22nd Oct 2007 13:48 UTC
Windows Earlier today, OSNews ran a story on a presentation held by Microsoft's Eric Traut, the man responsible for the 200 or so kernel and virtualisation engineers working at the company. Eric Traut is also the man who wrote the binary translation engine for in the earlier PowerPC versions of VirtualPC (interestingly, this engine is now used to run XBox 1 [x86] games on the XBox 360 [PowerPC]) - in other words, he knows what he is talking about when it comes to kernel engineering and virtualisation. His presentation was a very interesting thing to watch, and it offered a little bit more insight into Windows 7, the codename for the successor to Windows Vista, planned for 2010.
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Honk! Honk!
by Weeman on Mon 22nd Oct 2007 15:38 UTC
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I keep posting it whenever this topic is being talked about.

WOW64 is proof, shipped with any 64bit Windows, that it's entirely possible to run two different userlands (more like subsystems) on the same kernel. There's a full 32bit subsystem installed to run any 32bit application, and apart from messaging, the 32bit subsystems runs completely on its own, only sharing the kernel as common code.

Nothing speaks against a completely new main subsystem, keep the old one running side by side for "legacy" applications. Glue put where needed (i.e. windowing).

Alternatively, Microsoft could take a clue from Solaris Zones, if there's a more heavy-handed approach needed (quasi full hosting of an operating system), which is still lightweight in regards to resource sharing.

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