Open Bug 1288436 Opened 8 years ago Updated 2 years ago

[meta] identify performance issues/bottlenecks in text layout and shaping


(Core :: Layout: Text and Fonts, defect, P3)




Tracking Status
firefox50 --- affected


(Reporter: jfkthame, Unassigned)


(Depends on 3 open bugs)


(Keywords: meta)

From time to time, we see issues where text-heavy pages perform poorly (a typical example might be viewing huge build/test logs that are largely or entirely "plain text", so style processing shouldn't be a major issue).

We should try to identify areas where text layout (either at the level of constructing the text frames, lines, etc., or the actual glyph shaping and measurement) runs into particular performance issues, and look for potential improvements.

I propose to try some text-layout profiling, and file dependent bugs about any specific cases that look worth further investigation.
Probably related to bug 934770?
Bug 934770 highlights one possible area to try and improve, but I doubt it's the only one.
Depends on: 1288761
Depends on: 1288938
Depends on: 1288983
Depends on: 1296050
Priority: -- → P3
Depends on: 1406366
Depends on: 1509499
Severity: normal → S3
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