radar_trace 0.1.2

Pure-Dart tracer framework with monotonic spans, log-linear latency histograms, Zone-based async nesting, and a lossless outlier ring.

0.1.2

• Optional dedupKey on Tracer.trace / traceAsync / start — a caller-supplied signature (e.g. arguments) marking repeated invocations of the same operation. SpanKeyStatsSnapshot.duplicateCount reports how many spans repeated a previously-seen signature for a key (bounded to ~1024 signatures), distinct from any statistical "hot" heuristic. Span.dedupKey carries the joined signature.

0.1.1

• Docs only (no code change): document the per-key SpanKeyStatsSnapshot metrics — callsPerSecond, avgInterCallIntervalMicros, meanMicros, maxMicros, totalMicros, firstStartMicros, lastStartMicros — in the README.

0.1.0

• Initial release: Span model, LatencyHistogram, OutlierRing, TraceRecorder, TraceSnapshot, Tracer façade with Zone-based nesting.
• Added per-key call metrics to SpanKeyStatsSnapshot: firstStartMicros, lastStartMicros, avgInterCallIntervalMicros (null when count < 2), callsPerSecond (null when count < 2 or window is zero), meanMicros, maxMicros, totalMicros — all exact (no bucket approximation).