[Laszlo-dev] performance measurement of view creation speed doesn't seem to depend on dynamic vs sealed declaration after all

[P T Withington]

I take this to mean either:

a) Their compiler is not taking advantage of sealing, yet.

b) Their compiler is very smart and realizes that although your  
classes are declared dynamic, the are not extended in this application  
so they can be treated as sealed.

On 2008-02-13, at 22:05 EST, Henry Minsky wrote:

> I did some more testing of the view creation app (instantiating  
> 10,000 empty
> views), and tried declaring
> all of the base LFC classes (LzNode, LzView, LzEvent, lzDelegate) as
> dynamic, and it did not actually
> seem to make any significant  slowdown in the speed. The creation  
> speed
> averages about 100 usecs  for
> an empty view in either case.
>
> So whatever was causing the factor of two  slowness in the  tests  a  
> couple
> weeks ago was  some other bug.
>
> The 100 usec speed is with the flex debug flag off, with debugging  
> on it was
> about 120 usecs.
>
> For comparison, the creation speed in swf8 seems to be about 330  
> usecs for
> the same empty view.
>
>
>
>
>
>
>
>
> -- 
> Henry Minsky
> Software Architect
> hminsky at laszlosystems.com