A New Kid in Histogram Town
summary
Design doc "Sparse high-resolution histograms for Prometheus" is implemented as a branched prototype that encodes sparse high-resolution histograms in protobar/protobuf with a zero bucket, positive/negative spans and small deltas; a demo binary emits 13 conventional buckets alongside a sparse view (observations every 10 ms ~ 100 req/s, synthetic N(200 ms, 50 ms)) and serves protobuf (use text-encoding to inspect). Default experiment uses resolution 32. Ingestion, TSDB storage and PromQL operators are unfinished; demo encoding and wire efficiency work.
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chapters (5)
- 0:00Start
- 3:05Watch the original trilogy
- 4:42Or read the epic design doc
- 10:09prometheus/client_model
- 19:10prometheus/client_golang
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