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Subject: Re: [PATCH v5 8/9] x86-64: Emulate legacy vsyscalls
From: Pekka Enberg <penberg@kernel.org>
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        x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
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On Tue, Jun 7, 2011 at 1:49 AM,  <pageexec@freemail.hu> 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'?).

Well, I'm sure confused by 'fast path' vs 'fastpath'! Can you please
explain the difference? Thanks!

                                Pekka