Commit bc3be5a83f7e66431457b9b69204ab8e74ac0dc6
2022-01-27T12:12:58
Vulkan: Add a dedicated suballocation garbage list Suballocations are the most common garbage objects in most usage cases. The current garbage collection code will construct a garbage object from suballocation and then construct a SharedGarbage object with a std::vector that holds only one element. And then it adds this SharedGarbage to the garbage list. This CL tries to avoid create std::vector with just one element and avoid the cost of switch statement for each garbage object by adding a new dedicated garbage list that only holds the suballocation garbages, which is the most common garbages in the system. With gardenscapes running offscreen with --minimum-gpu-work, it reduces CPU overhead from 2.55ms to 2.20ms on Pixel6. Bug: b/215768827 Change-Id: Ia2872442462917c0caadb263769a1cbf3dd7366f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3414356 Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Charlie Lao <cclao@google.com>