FlameNode

Remarks

The tree the rings do not keep. A ProfilerSample carries a depth and two timestamps and nothing about its parent — which is exactly right for the recording side, where a parent pointer would be a second store on the hot path. Rebuilding the nesting is a walk over the samples in begin order, and it happens once per capture rather than once per frame.

⚠ Samples arrive in completion order, not in begin order. A scope is recorded when it closes, so a parent lands in the ring after every child it contains — which means the obvious reading of the array builds every tree upside down. Build sorts before it walks, and that sort is the whole trick.

Fields and properties (9)

• public ProfilerSample Sample

  The scope itself.

• public int Level

  Which row it draws on, counting from zero at the root.

• public IReadOnlyList<FlameNode> Children

  What ran inside it, in begin order.

• public string Name

  What it is called.

• public double Milliseconds

  How long it ran, in milliseconds.

• public double SelfMilliseconds

  How long it ran with its children's time taken out, in milliseconds.

• public long EndTicks

  When it ended, in Stopwatch ticks.

• public int Count

  How many nodes are in this subtree, including this one.

• public int Height

  How many rows deep this subtree goes.

Methods (3)

• public static IReadOnlyList<FlameNode> Build(ProfilerSample[] samples)

  Rebuilds one thread's nesting from its flat samples.

• public void Walk(Action<FlameNode> visit)

  Calls on this node and everything under it, parents first.

• public override string ToString()

  Returns a string that represents the current object.

Used by (8)

• FlameChartViewVixen.Editor.Profiler
• FlameChartViewTestsVixen.Editor.Profiler.Tests
• FlameTreeTestsVixen.Editor.Profiler.Tests
• ProfileCaptureVixen.Editor.Profiler
• ProfileSummaryVixen.Editor.Profiler
• ProfileThreadVixen.Editor.Profiler
• ProfilerModelVixen.Editor.Profiler
• ProfilerViewVixen.Editor.Profiler