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test(streaming): enforce slice E physical evidence

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Record route-lifetime streaming overruns and maximum operation costs, require canonical reveal/resource convergence at every connected checkpoint, and keep recenter semantics independent of the production wall-clock budget.

Co-authored-by: Erik Nilsson <erikn@users.noreply.github.com>
This commit is contained in:
Erik 2026-07-24 19:46:17 +02:00
parent 2ff8f844b0
commit 621f70eab6
6 changed files with 215 additions and 4 deletions
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23
src/AcDream.App/Streaming/StreamingWorkBudget.cs
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@ -155,6 +155,8 @@ public readonly record struct StreamingWorkMeterSnapshot(
int OversizedProgressCount,
int FailureCount,
double ElapsedMilliseconds,
double MaximumOperationMilliseconds,
string? MaximumOperationStage,
string? LastStage,
StreamingWorkLimit LastLimit);
@ -163,6 +165,12 @@ public readonly record struct StreamingWorkMeterSnapshot(
/// </summary>
public readonly record struct StreamingWorkDiagnostics(
StreamingWorkMeterSnapshot LastFrame,
long LifetimeFrameOverrunCount,
long LifetimeOversizedProgressCount,
double MaximumFrameMilliseconds,
string? MaximumFrameStage,
double MaximumOperationMilliseconds,
string? MaximumOperationStage,
int DeferredCompletions,
long DeferredAdoptedCpuBytes,
double OldestDeferredAgeMilliseconds,
@ -193,6 +201,8 @@ public sealed class StreamingWorkMeter
private long _destinationElapsedTicks;
private long _nonDestinationElapsedTicks;
private long _activeOperationStart;
private double _maximumOperationMilliseconds;
private string? _maximumOperationStage;
private int _operations;
private int _completed;
private int _yields;
@ -303,8 +313,8 @@ public sealed class StreamingWorkMeter
CompleteLaneTiming();
_completed++;
_reservationActive = false;
_activeStage = null;
ObserveElapsedOverrun();
_activeStage = null;
}
public void Fail()
@ -313,8 +323,8 @@ public sealed class StreamingWorkMeter
CompleteLaneTiming();
_failures++;
_reservationActive = false;
_activeStage = null;
ObserveElapsedOverrun();
_activeStage = null;
}
public void FinishFrame()
@ -341,6 +351,8 @@ public sealed class StreamingWorkMeter
_oversizedProgress,
_failures,
ElapsedMilliseconds(now),
_maximumOperationMilliseconds,
_maximumOperationStage,
_lastStage,
_lastLimit);
}
@ -428,6 +440,13 @@ public sealed class StreamingWorkMeter
private void CompleteLaneTiming()
{
long raw = Math.Max(0L, _timestamp() - _activeOperationStart);
double elapsedMilliseconds = raw * 1000.0 / _frequency;
if (_maximumOperationStage is null
|| elapsedMilliseconds > _maximumOperationMilliseconds)
{
_maximumOperationMilliseconds = elapsedMilliseconds;
_maximumOperationStage = _activeStage;
}
long elapsed = raw > long.MaxValue / TimeSpan.TicksPerSecond
? long.MaxValue
: raw * TimeSpan.TicksPerSecond / _frequency;