)]}'
{
  "commit": "f238e686e7d454dbeded397f1d91fab271adec7b",
  "tree": "78bd2d14a3d6610037251be352ba1d04e8ded5cc",
  "parents": [
    "0debe7dc68067fe188b762f40abe43256bdb3d60"
  ],
  "author": {
    "name": "Zimuzo Ezeozue",
    "email": "zezeozue@google.com",
    "time": "Thu Apr 30 00:24:36 2026 +0100"
  },
  "committer": {
    "name": "Zimuzo Ezeozue",
    "email": "zezeozue@google.com",
    "time": "Thu Apr 30 00:54:29 2026 +0100"
  },
  "message": "heap_graph: per-Java-frame root attribution\n\nSurface, for ROOT_JAVA_FRAME GC roots emitted by ART\u0027s perfetto_hprof,\nthe kernel TID of the thread whose stack frame retains each object.\nCombined with the Java thread stack samples ART now emits at heap-\ndump time, this lets a consumer navigate from a heap dominator\nstraight to the holding thread\u0027s call stack with a single\ntrace_processor join.\n\nWire (heap_graph.proto):\n  HeapGraph.frame_roots: repeated HeapGraphFrameRoot\n  HeapGraphFrameRoot { object_id, thread_id (kernel TID) }\n\ntrace_processor:\n  * New nullable column heap_graph_object.root_thread_tid populated\n    from HeapGraphFrameRoot at FinalizeProfile.\n  * Stdlib helper macro propagates root_thread_tid through to\n    _heap_graph_dominator_class_tree.\n  * Public view heap_graph_object exposes root_thread_tid.\n\nUI (dev.perfetto.HeapProfile):\n  * Dominator flamegraph tooltip line \u0027Held By Thread:\n    \u003cthread_name\u003e (tid \u003cN\u003e)\u0027 surfaced only for ROOT_JAVA_FRAME nodes.\n    Resolved via LEFT JOIN thread on the existing thread.tid.\n\nChange-Id: I8568b424835972b3e732543ae8325a54af85f8ea\n",
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