Why M:N threading with scheduler activations?

Riso Liao <[email protected]>
Newsgroups gmane.linux.ngpt.devel
Message-ID <[email protected]>
I`ve read this:
http://marc.theaimsgroup.com/?l=linux-kernel&m=103284879216107&w=2
It seems that 1:1 Threading is better than M:N threading with scheduler 
activations.
I can`t find a NGPT Whitepaper.
Can someone tell me why NGPT is M:N threading with scheduler activations?
Thanks a lot!

Riso
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