[Webkit-unassigned] [Bug 72404] Could save a lot of memory in CharacterData by not always storing a String

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=72404





--- Comment #5 from Ojan Vafai <ojan at chromium.org>  2011-11-15 13:36:03 PST ---
The way I was picturing option 3 work is that we'd just do it for strings that only contain U+0020 SPACE, U+0009 CHARACTER TABULATION (tab), U+000A LINE FEED (LF) and U+000D CARRIAGE RETURN (CR). That way, you can use 2 bits per character and could encode strings up to 16 characters long as a single unsigned. I think this is probably too complicated to be worth it.

Option 5 sounds awesomest, but complicated.

I agree that we should try the AtomicString approach first just for whitespace strings (possibly with a length limit?). It's the simplest and gets the vast majority of the memory benefits.

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