[Webkit-unassigned] [Bug 258660] private class members are much, much slower than public members

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Aug 2 01:04:41 PDT 2023


--- Comment #2 from Rob Palmer <rob.palmer2 at gmail.com> ---
I can replicate these numbers on my M1 Macbook Air using latest STP. The performance drop for native private fields is greater in JSC than V8.

Safari TP #private fields: 35 ops/sec
Safari TP public fields: 632 ops/sec

Chome Canary #private fields: 62 ops/sec
Chome Canary public fields: 107 ops/sec

This is surprising.

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