[whatwg] Proposal for separating script downloads and execution

Boris Zbarsky bzbarsky at MIT.EDU
Wed May 25 18:45:51 PDT 2011

On 5/25/11 8:05 PM, Aryeh Gregor wrote:
> What do you mean by "execution" here?  If the script is already
> compiled, and you write it so that all it does is define a function,
> then executing it should not take any measurable amount of time
> (<1ms).  Currently this might not be observable, since if I understand
> correctly, browsers don't separate compilation from execution.

For what it's worth, if someone can point me to a script they actually 
want such measurements for, I'd be happy to produce at least Gecko 
numbers for how long the various parts take.  While the different parts 
of the pipeline are not separable from the point of view of a web page 
right now, Gecko internals and profilers have no such limitations.

That's assuming people actually want numbers here.


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