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Re: [xml-dev] XML vs relational database
- From: Rick Marshall <rjm@zenucom.com>
- To: Elliotte Harold <elharo@metalab.unc.edu>
- Date: Wed, 22 Aug 2007 22:33:55 +1000
I play this game where I turn off the optimiser (I still use C ;) ) and
profile my code. Then I turn it on and profile the code again.
Over many years I've managed to keep the gap at about 5%.
Why do it? ...
Anyway here's a more interesting take on reflection. It matters to
Microsoft (and many database engines), but not necessarily to
Unix/Linux. Why?
Well if you have long lived processes and you can create new modules
then it's nice to know that the engine/program can somehow work out that
there might be a better way. In the world of short lived processes
(typically but not necessarily Unix/Linux) changes/improvements are
always available.
The paradigm determines the importance of the theory.
Rick
Elliotte Harold wrote:
> Tei wrote:
>
>> 2) As soon runtime optimization make Java faster than C++, some
>> people will switch. The people that need raw speed.
>
>
> Hindsight's 20/20. That's already happened. :-)
>
> It depends on the problem of course. Some problems are more amenable
> to compile time optimization and some to runtime optimization. These
> days sometimes Java is faster and sometimes C++ is faster. For my
> needs, they;re so close to each other either way, that it hardly matters.
>
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