Re: removeheaders

MrC wrote:
> Well, sure, like the old saying, there are lies, damn lies, and there 
> are benchmarks!

Quite true.


> Seriously, this is good work.  I like the more measured approach.   

Thanks.


> Let's be careful to remember that artificial data sets lead to 
> artificial conclusions about performance. 

Also true. A good next step would be to run the benchmarks against some 
real world data, rather than just a single line.

While running the benchmarks at 100K iterations I started noticing quite 
a bit of variation in the results. Not just the percentages moving 
around, but the rankings were shifting as well. It wasn't until I bumped 
it up to a million iterations that things started behaving more 
consistent. The stability point will probably vary depending on the 
speed of your system and how sporadic its load average is. Using a 
larger data set should allow reaching stability with fewer iterations.


> For example, my data set and measurement shows rh1 (original) and rh4
> (consolidate + validation) to be slower, with my rh2 falling in
> between (because of the way the RE engine works, longer strings will
> have more impact).
> 
> rh5 98522/s  71%  56%  52%  49%   --

But I see rh5 is still killing the others.

  -Tom

-- 
Tom Metro
Venture Logic, Newton, MA, USA
"Enterprise solutions through open source."
Professional Profile: http://tmetro.venturelogic.com/