# QuantileSamplingTier

List of quantile sampling tiers for performance-based sampling. Each tier defines a percentile threshold, sampling rate, and label. Traces ABOVE each quantile get the corresponding sampling rate and are labeled with the tier's label. Evaluated in descending quantile order. A tier at quantile 0.0 is a catch-all that matches unconditionally, giving the fastest traces a baseline rate; without one, traces below the lowest configured quantile are dropped.

**Type**: `object`

## Properties

- name: label (required)
  type: string
  description: Human-readable label for this tier, used as the percentile bucket value in the enriched span data. This allows you to categorize traces into named buckets for querying and analysis.

- name: quantile (required)
  type: number
  description: The percentile threshold for this tier (0.0 = 0th percentile, 0.5 = 50th percentile, 0.99 = 99th percentile). Traces with duration ABOVE this percentile will be evaluated for this sampling rate.

- name: samplingRate (required)
  type: number
  description: The sampling rate to apply for traces that exceed this quantile threshold. 0.0 = 0% (no sampling), 1.0 = 100% (always sample).