properties vs local variable

Alex Tweedly alex at tweedly.net
Mon Mar 10 12:44:15 EDT 2014


On 10/03/2014 15:33, dunbarx at aol.com wrote:
> I tried a simple test. I placed 100,000 lines of text into a custom property and into a variable. I timed how long it took to directly access a single line, 10,000 times. It took 2 ticks for the custom property, and almost no time at all for the variable.
The question is - *which* "single line" did you test with ?

with the same circumstances, accessing
line       1   takes 3 msec
line 5000   takes 349 msec

>
> So the custom property is slower, but still pretty fast. What really matters is other stuff. For example, in the same pair of setups, if I asked for "any line" of either the prop or the variable, the process took about 30 seconds. That function call took its sweet time. So the lesson here is to watch carefully what is a first order issue, and what is a fourth order issue.
It's not just the "any" that takes the time, it's the fact that on 
average it will be equivalent to the middle line.

-- Alex.




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