Add histogram of report shares by VDAF parameters #3166
Merged
+204
−31
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This is the first part of #3165. It adds a new histogram metric to supersede
janus_report_aggregation_success_counter
, but with additional labels for VDAF type and size buckets. I set the "dimension" to 1 for Prio3Count, "bits" for Prio3Sum, "length" for Prio3Histogram, "length * bits" for Prio3SumVec, etc. Here's some sample output.