Boris Zbarsky wrote:
On 10/22/12 10:15 AM, Brendan Eich wrote:
Defined in terms of "not important" == "can put in perf penalty box" of
some non-trivial penalty-size.
This is always true. It only takes one benchmark that takes off that
exercises something you assumed was rare for you to be screwed.
Not quite a truism. We know document.write has to be fast
(http://www.youtube.com/watch?v=3NVpFj64MQU). We don't know adoptNode
has to be fast, and any new benchmark trying to "take off" (like
SunSpider did when there was a vacuum in JS benchmarks) will face
push-back, probably from multiple browser implementors.
That said, I would want the extra work done on adopt to be _small_.
Scanning the whole heap, say, would NOT be acceptable.
Agreed. You wrote "(e.g. the -moz-element stuff would have that,
perhaps, and things like image loads and whatnot)". Can we (heh, you
rather than me) enumerate cases for Servo and rule out a general heap scan?
/be
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