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A comment on The Sad History of the Microsoft Posix Subsystem (2010). Parent comment

Re:The Sad History of the Microsoft Posix Subsystem (2010) by gpvos on Monday April 25, 2016 @05:58AM (#11563318)
> And in general, would kernel emulation be a performant approach for running userspace of any OS in any other OS?

It can come close to the host OS, but that requires a lot of work.

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Re:The Sad History of the Microsoft Posix Subsystem (2010) by quietplatypus on Monday April 25, 2016 @03:07PM (#11566503)
Would this include stuff like printing to stderr being slower on Windows? If they get to write kernel drivers, there could be a chance that they could replicate the file handling behaviors of Linux.
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Re:The Sad History of the Microsoft Posix Subsystem (2010) by gpvos on Tuesday April 26, 2016 @01:19AM (#11569607)
I don't really know anything about this, but if stderr is really slower on Windows, I would suppose that's a userland library thing. I would not know why that would be slower at kernel level. So that problem might not even arise under the Linux emulation.
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