Open Bug 1852423 Opened 1 year ago Updated 1 year ago

Nightly is 1.5x slower than Chrome on an online zip compressor tool

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://www.ezyzip.com/
Click on Compress ->Files
Choose a large local file to compress ( I chose 800MB video file)
Select the maximum zip compression level
Click on "zip"

Nightly: https://share.firefox.dev/3Exp4bh (81 seconds)
Chrome: 52 seconds

The marker chart tab for the Dom Worker thread indicates tons of Bailouts throughout the run. cc :jandem.

This spends most time in the DOM worker and most of it in Ion code as far as I can tell. I don't see anything obvious at first glance.

Severity: -- → N/A
Priority: -- → P3
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