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

From: Pekka Enberg
Date: Tue Jun 07 2011 - 02:59:34 EST

On Tue, Jun 7, 2011 at 1:49 AM, <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'?).

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

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