294348 2025-06-11 15:04:46 -0700 Allow profiling of libpas allocations on local allocator granularity 2025-06-16 10:51:36 -0700 1 1 1 Unclassified WebKit bmalloc WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 d_degazio d_degazio ggaren webkit-bug-importer oldest_to_newest 2123098 0 d_degazio 2025-06-11 15:04:46 -0700 We already have a lot of different profiling hooks that allow profiling logic to be injected into a lot of different code paths in libpas. However, it's hard to develop profiling policies that vary based on type of allocation or that are probabilistic. One nice mechanism for this is the local allocator, where at least for segregated allocations, we can toggle profiling for a specific local allocator based on some policy in the allocation medium-to-slow path, instead of burdening the fastest fast paths with additional logic. This can help us collect useful profiling information while reducing the impact on normal program performance characteristics. 2123101 1 d_degazio 2025-06-11 15:10:39 -0700 rdar://153125216 2123336 2 d_degazio 2025-06-12 12:52:34 -0700 Pull request: https://github.com/WebKit/WebKit/pull/46670 2124013 3 ews-feeder 2025-06-16 10:51:34 -0700 Committed 296285@main (e9f91e517391): <https://commits.webkit.org/296285@main> Reviewed commits have been landed. Closing PR #46670 and removing active labels.