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DateMon, 23 Sep 2002 18:36:02 +0200
FromMatthias Urlichs <>
SubjectRe: [ANNOUNCE] Native POSIX Thread Library 0.1
Peter Waechtler:
>  [ unattributed -- please don't discard attributions ]

>  Having multiple threads doing real work including IO means more
>  blocking IO and therefore more context switches.

On the other hand, having to multiplex in userspace requires calls to 
poll() et al, _and_ explicitly handling state which the kernel needs 
to handle anyway -- including locking and all that crap.

Given that an efficient and fairly-low-cost 1:1 implementation is 
demonstrably possible ;-) the necessity to do any kind of n:m work 
strikes me as extremely low.
-- 
Matthias Urlichs      http://smurf.noris.de     ICQ:20193661    AIM:smurfixx
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