metrics-lib 0.9.1

The fastest metrics library for Rust. Lock-free 0.6ns gauges, 18ns counters, timers, rate meters, async timing, adaptive sampling, and system health. Cross-platform with minimal dependencies.
Documentation 
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groups:
  - name: metrics-lib.rules
    interval: 30s
    rules:
      - record: job:http_requests:rate5m
        expr: sum by (job) (rate(http_requests_total[5m]))
      - record: job:operation_duration:p95_5m
        expr: |

          histogram_quantile(0.95,
            sum by (job, le) (rate(operation_duration_bucket[5m]))
          )
      - record: job:broker_consume:rate5m
        expr: sum by (job) (rate(broker_messages_total[5m]))