Re: [ANNOUNCE] Native POSIX Thread Library 0.1

From: Matthias Urlichs (smurf@noris.de)
Date: Mon Sep 23 2002 - 11:36:02 EST


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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Mon Sep 30 2002 - 22:00:17 EST