Re: [PATCH v5 8/9] x86-64: Emulate legacy vsyscalls

[Ingo Molnar]

* pageexec@xxxxxxxxxxx <pageexec@xxxxxxxxxxx> wrote:

> On 7 Jun 2011 at 10:30, Ingo Molnar wrote:
> 
> > 
> > * pageexec@xxxxxxxxxxx <pageexec@xxxxxxxxxxx> wrote:
> > 
> > > > A fastpath is defined by optimization considerations applied 
> > > > to a codepath (the priority it gets compared to other 
> > > > codepaths), *not* by its absolute performance.
> > > 
> > > we're not talking about random arbitrarily defined paths here 
> > > but the impact of putting well predicted branches into the pf 
> > > handler vs. int xx (are you perhaps confused by 'fast path' vs. 
> > > 'fastpath'?).
> > 
> > So please educate me, what is the difference between 'fast path' 
> > versus 'fastpath', as used by kernel developers, beyond the 
> > space?
> 
> you seemed to have made a distinction, you tell me ;), [...]

I have not made any distinction at all, *you* wrote:

> > > (are you perhaps confused by 'fast path' vs. 'fastpath'?).

and several people have asked you why you wrote that and you have not 
replied to any of those questions yet.

Thanks,

	Ingo
--
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/