优化

kernel/src/kernel/frame.cpp

@@ -162,6 +162,13 @@ Taskflow_Frame_Trace Render_Frame::take_taskflow_trace() {
         result.markers.push_back(Frame_Trace_Point{
             static_cast<Frame_Trace_Marker>(index), decode_present_value(encoded)});
     }
+    for (std::size_t index = 0; index < measurement_count; ++index) {
+        const auto encoded = d->measurements[index].load(std::memory_order_acquire);
+        if (!encoded) continue;
+        result.measurements.push_back(Frame_Trace_Value{
+            static_cast<Frame_Trace_Measurement>(index),
+            decode_present_value(encoded)});
+    }
     result.graphs = std::move(d->taskflow_graphs);
     for (auto& worker : d->taskflow_workers) {
         for (auto& task : worker.tasks)

kernel/src/kernel/frame.hpp

@@ -11,6 +11,11 @@ struct Taskflow_Frame_Access;
 struct Frame_Statistics_Sample;
 enum struct Frame_Trace_Marker : std::uint8_t {
     created,
+    plot_update_started,
+    plot_update_finished,
+    scene_render_entered,
+    scene_advance_started,
+    scene_advance_finished,
     scene_render_requested,
     scene_render_started,
     event_dispatch_started,
@@ -119,6 +124,7 @@ struct Taskflow_Frame_Trace {
     std::uint64_t created_time_unix_ns{}; /* 帧创建 Unix 时间，单位纳秒。 */
     std::size_t worker_count{}; /* 捕获时全局 Executor 的 worker 数。 */
     std::vector<Frame_Trace_Point> markers{}; /* 与该帧 DAG 共用时间原点的原始流水线时间点。 */
+    std::vector<Frame_Trace_Value> measurements{}; /* 本帧原始耗时测量；不另建统计副本。 */
     std::vector<Taskflow_Graph_Trace> graphs{}; /* 本帧主动执行的业务 DAG 元信息。 */
     std::vector<Taskflow_Task_Trace> tasks{}; /* 本帧窗口内原生 Observer 完成的任务执行。 */
 };

kernel/src/test/render_test.cpp

@@ -176,6 +176,7 @@ TEST(task_graph_observer, business_dag_and_native_execution_share_node_identity)
     frame.mark(aethera::Frame_Trace_Marker::paint_frame_target_started);
     frame.mark(aethera::Frame_Trace_Marker::paint_frame_target_finished);
     frame.mark(aethera::Frame_Trace_Marker::paint_finished);
+    frame.record(aethera::Frame_Trace_Measurement::plot_update_ns, 125'000);
     frame.request_taskflow_trace();
     ASSERT_TRUE(aethera::detail::begin_taskflow_trace(frame));
     aethera::detail::run_taskflow(frame_graph, frame, "test.scene.paint");
@@ -189,6 +190,12 @@ TEST(task_graph_observer, business_dag_and_native_execution_share_node_identity)
         trace.markers,
         aethera::Frame_Trace_Marker::paint_frame_target_started,
         &aethera::Frame_Trace_Point::marker));
+    const auto plot_update = std::ranges::find(
+        trace.measurements,
+        aethera::Frame_Trace_Measurement::plot_update_ns,
+        &aethera::Frame_Trace_Value::measurement);
+    ASSERT_NE(plot_update, trace.measurements.end());
+    EXPECT_EQ(plot_update->value_ns, 125'000u);
     EXPECT_EQ(trace.graphs.front().stage, "test.scene.paint");
     EXPECT_TRUE(trace.graphs.front().completed);
     EXPECT_EQ(std::ranges::count_if(trace.graphs.front().nodes, [](const auto& node) {