Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3

From: Pavel Machek
Date: Wed Feb 28 2007 - 11:12:17 EST


Hi!

> > If kernelspace rescheduling is that fast, then please explain me why
> > userspace one always beats kernel/userspace?
>
> because 'user space scheduling' makes no sense? I explained my thinking
> about that in a past mail:
...
> 2) there has been an IO event. The thing is, for IO events we enter the
> kernel no matter what - and we'll do so for the next 10 years at

..actually, at some point 3D acceleration was done by accessing hw
directly from userspace. OTOH I think we are moving away from that
model, so it is probably irrelevant here.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/