1813309 - Investigate if avoiding ensureLinear call under CopyStringChars would improve performance

Status: NEW

(Core :: JavaScript Engine, task, P2)

Description

[Olli Pettay [:smaug][[e-mail]]]

This is from VanillaJS-TodoMVC
https://share.firefox.dev/3Jq2HrZ
Gecko side passes large enough buffer https://searchfox.org/mozilla-central/rev/4d2b1f753871ce514f9dccfc5b1b5e867f499229/dom/base/nsJSUtils.h#118,122 so one should be able to just copy string data there without flattening the rope.

Comment 1

[Masoudahg]

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