kc3-lang/angle

2022-08-08T07:51:21

Use angle::HashSet to replace std::set in Display.h The std::set uses heap allocation for each item, so change it to angle::HashSet for ContextSet, SurfaceSet, ThreadSet, ImageSet, StreamSet, SyncSet and EglDisplaySet. angle::HashSet is a flat set, all items are in one memory allocation. It should has better performance for small size set container. Ideally, it is better to use angle::FlatUnorderedSet which doesn't need heap allocation at all in most cases. However FlatUnorderedSet doesn't support common std container methods. So we can only use angle::HashSet for now. Maybe improve angle::FlatUnorderedSet in follow CLs. Bug: chromium:1336126 Change-Id: I18b3afd8722d222183c88f876b792c1af23bc195 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3816401 Auto-Submit: Peng Huang <penghuang@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>