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SubjectRe: [git pull] scheduler updates


On Sat, 8 Nov 2008, Ingo Molnar wrote:
>
> Ingo Molnar (2):
> sched: improve sched_clock() performance
> sched: optimize sched_clock() a bit

Btw, why do we do that _idiotic_ rdtsc_barrier() AT ALL?

No sane user can possibly want it. If you do 'rdtsc', there's nothing you
can do about a few cycles difference due to OoO _anyway_. Adding barriers
is entirely meaningless - it's not going to make the return value mean
anything else.

Can we please just remove that idiocy? Or can somebody give a _sane_
argument for it?

Linus


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