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

Pavel Machek
2007-02-28T16:11:55Z

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
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