Re: [ANNOUNCE] ktimers subsystem

[Ingo Molnar]

* Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:

> > Applications call gettimeofday for a variety of reasons. One is because it 
> > is widely available over different platformsn and application want to 
> > schedule things, need timestamps etc etc.
> 
> Accepted. But I still doubt that the number of calls to gettimeofday 
> is in anyway justified. The question I'm asking if it is really worth 
> a long and epic discussion about a single add instruction ?

it is absolutely and emphatically not worth it.

even in a hypothetical scenario [which this patchset is _not_ analogous 
to] where a new, clean subsystem introduces significant overhead, but 
the old subsystem is unclean, we frequently go with the new one - 
because it's so much easier to speed up something that is clean, robust 
and well-designed, than something that has been cobbled together!

	Ingo
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