Re: [WebTiming] HTMLElement timing

On Wed, Feb 17, 2010 at 10:36 PM, James Robinson <jamesr@google.com> wrote:
> * What precisely does 'parse' time mean for each element?  For example, on a
> <script> tag does parse time include parsing the script itself, or executing
> it as well?  What about for JS engines that do not distinguish between the
> two?

Then there is also things like JITs, which at least in some engines
run lazily. So a function isn't JITted until the first time it runs.
Which may or may not be long after the <script> has executed. In
firefox things are even worse because a function isn't "traced" until
we've determined that it's a "hot" path, i.e. that it's run several
times.

/ Jonas

Received on Thursday, 18 February 2010 21:45:39 UTC