ID caching: how to test?

[Richard Gaskin]

Alex Tweedly wrote:

> Yes, here's an example. The clue (I think) is in the "linear time...into
> constant time"
>
> Create a large-ish number of controls - in this stack I cloned a button
> 1000 times, calling them
> BBB1   BBB2 .... BBB1000
>
> Then this code accesses a single control many times - and shows that
> accessing by id is much faster than accessing by name, but more
> importantly here, that in 6.0 access by id to the most recently accessed
> control is very fast.
>
> in 5.5.3
> name takes 830 ms while id takes only 250 ms
>
> but in 6.0 (i.e. with id caching)
> name takes 830 ms while id takes 5 ms
>
> -- Alex.
>
> global K
>
> on mouseUp
>     put 1000 into K
>
>     put the millisecs into t1
>     put "BBB"&(K-10) into tName
>     repeat 10000 times
>        put the short name of control tName  into t
>     end repeat
>     put the millisecs-t1 && t &CR after msg
>
>     put the millisecs into t1
>     put the id of button tName into tID
>     repeat 10000 times
>        put the short name of control id tID  into t
>     end repeat
>     put the millisecs-t1 && t &CR after msg
>
> end mouseUp

Nicely done, Alex.  Thanks!

-- 
  Richard Gaskin
  Fourth World Systems
  Software Design and Development for Desktop, Mobile, and Web
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