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Re: Linux v.s. Mac OS-X Performance

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On Nov 27, 2007, at 8:36 PM, Gregory Stark wrote:

I think (but I'm not sure) that the kernel in OSX comes from BSD.

Kind of. Mach is still running underneath (and a lot of the app APIs use it directly) but there is a BSD 'personality' above it which (AIUI) is big parts of FreeBSD ported to run on Mach. So when you use the Unix APIs you're going through that.

-Doug

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