kc3-lang/angle

2023-09-05T13:44:40

Metal: Use a flat hash map for tracking resource ids. This set is very mutable. It makes many insertions, allocating memory each time. Useing a absl::flat_unordered_set we can avoid allocating memory at insertion time. This was a hotspot for Google Earth, taking up about 10% of ANGLE's CPU time. Bug: angleproject:8301 Change-Id: I7363ea8fdc5ff230a289af7c1ae25dc577188a18 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4843709 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>