121239 2013-09-12 10:55:37 -0700 IncrementalSweeper should not require an entire Vector to do its job 2013-09-12 10:56:09 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified NEW P2 Normal --- 121074 1 mhahnenberg mhahnenberg oldest_to_newest 928382 0 mhahnenberg 2013-09-12 10:55:37 -0700 Right now during every collection we fill a Vector with pointers to all the MarkedBlocks in the Heap just so the IncrementalSweeper can iterate over them later without getting confused about newly added blocks. This is too expensive to do during every GC, especially with a generational collector. We should instead create a special iterator that the IncrementalSweeper can use that iterates the blocks in place and handles any weird corner cases internally.