Closed Bug 1483436 Opened 7 years ago Closed 6 years ago

Global lock in SkScalerContext_win_dw prevents P-OMTP on windows from performing well with text

Categories

(Core :: Graphics: Layers, defect, P3)

Product:
Core
Component:
Graphics: Layers
Type:
defect

Tracking

()

Status:
RESOLVED FIXED

People

(Reporter: rhunt, Assigned: rhunt)

References

Details

(Whiteboard: [gfx-noted])

Seen from profiling locally [1]. I've observed that with P-OMTP on unaccelerated windows, the paint worker threads can contend heavily over the DWrite global lock in Skia. I've seen from 40%-65% of the time spent on a full paint blocked on each paint worker. [1] https://perfht.ml/2Bd64Bj
Priority: -- → P3
Depends on: 1533546
Status: NEW → RESOLVED
Closed: 6 years ago
Resolution: --- → FIXED
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