Open Bug 2046368 Opened 3 months ago Updated 2 months ago

Modified Codepen demo (https://codepen.io/GreenSock/pen/gbwJwPW?editors=0010) is 9x slower in Firefox

Categories

(Core :: JavaScript Engine, task, P3)

Product:
Core
Component:
JavaScript Engine
Type:
task

Tracking

()

People

(Reporter: mayankleoboy1, Unassigned)

References

(Blocks 1 open bug,
URL
)

Details

Go to https://codepen.io/GreenSock/pen/gbwJwPW?editors=0010
In js, change the number of wiggles to 90000
Let the demo recompile and run

Firefox: https://share.firefox.dev/4okN73s (9s)
Chrome: https://share.firefox.dev/3SvyxtS (1s)

Severity: -- → N/A
Priority: -- → P3

98% of the profile is spent in Array.splice, more than half of which is elementsRangePostWriteBarrier. Probably there is something here that could be made more efficient, but it's not an immediate priority.

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