[development] coding standard question

[Konstantin Käfer]

> 1326ms vs. 1382ms is 60ms, and when normal page load times are  
> somewhere around 200ms, it makes a substantial difference.

Even if we disregard the fact that microtime tests have a big stddev,  
your test is not very convincing: You are using these constants  
several hundred thousand times whereas Drupal only has 2500+ in its  
*entire* source code. And of that source code, only a fraction gets  
to execution. I'd estimate the number of constants that are actually  
executed on a Drupal page view to about 500, and even that is  
probably too high. If you extrapolate your results (60ms for 100000),  
you'll get 0.3 msecs. Besides, a real world server behaves quite  
different from a desktop machine, especially in such edge cases.

Konstantin
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