Open Bug 1288436 Opened 6 years ago Updated 4 years ago
[meta] identify performance issues/bottlenecks in text layout and shaping
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.
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