Closed Bug 1754149 Opened 3 years ago Closed 3 years ago

Very slow startup of wasm LibreOffice with FF96

Categories

(Core :: JavaScript: WebAssembly, defect, P2)

Product:
Core
Component:
JavaScript: WebAssembly
Platform:
x86_64
Linux
Type:
defect

Tracking

()

Status:
RESOLVED WORKSFORME

People

(Reporter: lth, Assigned: lth)

References

(Blocks 1 open bug)

Details

Go to https://wasm-test.libreoffice.org. Measure the time of the "Compiling" phase. On my beefy 16-thread Xeon, this takes about 2m50s on FF96, which is very long. According to htop, most of the time is spent on a single thread.

On FF98, the time is about 0m15s. The problem was caused by the call_indirect optimization and the perf problems were fixed by bug 1750930 and bug 1752870.

Status: ASSIGNED → RESOLVED
Closed: 3 years ago
Resolution: --- → WORKSFORME
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