Boost logo

Boost :

From: Gennadiy Rozental (gennadiy.rozental_at_[hidden])
Date: 2006-12-15 14:31:31


"David Abrahams" <dave_at_[hidden]> wrote in message
news:87irgdxafy.fsf_at_pereiro.luannocracy.com...
> "Gennadiy Rozental" <gennadiy.rozental_at_[hidden]> writes:
>
>> "David Abrahams" <dave_at_[hidden]> wrote in message
>> news:87psal1e9x.fsf_at_pereiro.luannocracy.com...
>>> "Gennadiy Rozental" <gennadiy.rozental_at_[hidden]> writes:
>>
>>Just that after many years of optimizing
>> performance critical code I gave up doing any "estimations". I was proven
>> wrong too many times, so that even test program is not real prove. There
>> are way too many factors that affect performance of real-life
>> applications.
>> Sometimes the same code compiled with different compilers of in different
>> hardware will exhibit completely different performance pattern. We could
>> talk about trends. And in this case I believe trends could be different
>> depending on circumstances.
>
> That's true in most cases, but there's no need to muddy this case with
> uncertainties. If you think about it for just a few moments, you'll
> see there's absolutely no way the tuple version could be worse, and
> that it would take an optimizer of unheralded brilliance to make the
> variant version as good.

Let's just say that we'll have agree to disagree ;)

Gennadiy


Boost list run by bdawes at acm.org, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk