Closed Bug 2006748 Opened 8 months ago Closed 4 months ago

Add MRU cache for URL normalization in AI Window Security Layer

Categories

(Core :: Machine Learning: General, task)

Product:
Core
Component:
Machine Learning: General
Type:
task

Tracking

()

Status:
RESOLVED WONTFIX

People

(Reporter: rconcepcion, Unassigned)

References

Details

(Whiteboard: [genai])

The security layer normalizes URLs frequently during policy evaluation. As usage scales (many tabs, many URLs per tab), repeated normalization of the same URLs may impact performance.

Add a Most Recently Used (MRU) cache to normalizeUrl() in SecurityUtils.sys.mjs to avoid redundant normalization work.

Notes

  • Defer until profiling data (Bug 2005413) shows this is a bottleneck
  • Cache should have bounded size to prevent memory growth
  • Consider invalidation strategy if URLs can change

Reference

  • D274523 reviewer feedback

Acceptance Criteria

  • MRU cache implemented for normalizeUrl()
  • Cache size is bounded
  • Performance improvement validated via profiler
No longer depends on: 2005778

Closing in favor of more recent security fast-follow bugs in Bug [2029713|https://bugzilla.mozilla.org/show_bug.cgi?id=2029713].

Status: NEW → RESOLVED
Closed: 4 months ago
Resolution: --- → WONTFIX
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