RESOLVED LATER 77483
[Shadow]: Develop performance benchmark 
https://bugs.webkit.org/show_bug.cgi?id=77483
Summary [Shadow]: Develop performance benchmark
Dimitri Glazkov (Google)
Reported 2012-01-31 15:13:11 PST
We must have an explicit performance goal of shadow DOM rendering being faster than doing the same thing using plain old DOM (even DOM mutation observers). This means we need to write a benchmark to prove it. Also, we should use this benchmark as an opportunity to track our progress.
Attachments
Add attachment proposed patch, testcase, etc.
Dominic Cooney
Comment 1 2012-01-31 22:24:03 PST
I think making shadow DOM perf neutral versus plain old DOM should be the goal. (Why would it get faster?)
Dimitri Glazkov (Google)
Comment 2 2012-02-01 09:16:14 PST
(In reply to comment #1) > I think making shadow DOM perf neutral versus plain old DOM should be the goal. (Why would it get faster?) I would think that Plain-old DOM manipulation is going to be both: a) fairly involved and thus slower b) will have no benefit of just manipulating render boxes and thus slower, too. I think we should aim to be faster. No?
Ryosuke Niwa
Comment 3 2019-10-04 22:38:58 PDT
We'll probably do that as a part of new version of Speedometer.
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