{
  "title": "quic_ecs_dt — substrate runtime",
  "uid": "quic-ecs-dt-runtime",
  "schemaVersion": 39,
  "version": 1,
  "timezone": "",
  "refresh": "5s",
  "time": { "from": "now-15m", "to": "now" },
  "tags": ["quic_ecs_dt", "ucami2026", "substrate"],
  "templating": {
    "list": [
      {
        "name": "datasource",
        "label": "Data source",
        "type": "datasource",
        "query": "prometheus",
        "current": { "selected": false, "text": "Prometheus", "value": "Prometheus" },
        "hide": 0
      }
    ]
  },
  "panels": [
    {
      "id": 1,
      "title": "Tick rate (Hz)",
      "type": "stat",
      "gridPos": { "h": 4, "w": 6, "x": 0, "y": 0 },
      "datasource": { "type": "prometheus", "uid": "${datasource}" },
      "fieldConfig": { "defaults": { "unit": "hertz", "decimals": 1 } },
      "targets": [
        { "expr": "substrate_tick_hz", "refId": "A", "legendFormat": "tick_hz" }
      ]
    },
    {
      "id": 2,
      "title": "Entities",
      "type": "stat",
      "gridPos": { "h": 4, "w": 6, "x": 6, "y": 0 },
      "datasource": { "type": "prometheus", "uid": "${datasource}" },
      "fieldConfig": { "defaults": { "unit": "short" } },
      "targets": [
        { "expr": "substrate_entities", "refId": "A", "legendFormat": "entities" }
      ]
    },
    {
      "id": 3,
      "title": "RSS",
      "type": "stat",
      "gridPos": { "h": 4, "w": 6, "x": 12, "y": 0 },
      "datasource": { "type": "prometheus", "uid": "${datasource}" },
      "fieldConfig": { "defaults": { "unit": "bytes", "decimals": 1 } },
      "targets": [
        { "expr": "substrate_rss_bytes", "refId": "A", "legendFormat": "rss" }
      ]
    },
    {
      "id": 4,
      "title": "T3 — no handler events (cumulative)",
      "type": "stat",
      "gridPos": { "h": 4, "w": 6, "x": 18, "y": 0 },
      "datasource": { "type": "prometheus", "uid": "${datasource}" },
      "fieldConfig": { "defaults": { "unit": "short" } },
      "targets": [
        { "expr": "substrate_t3_no_handler_total", "refId": "A", "legendFormat": "no_handler" }
      ]
    },
    {
      "id": 5,
      "title": "Per-tier receive rate",
      "type": "timeseries",
      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 4 },
      "datasource": { "type": "prometheus", "uid": "${datasource}" },
      "fieldConfig": { "defaults": { "unit": "cps" } },
      "targets": [
        {
          "expr": "rate(substrate_received_total[1m])",
          "refId": "A",
          "legendFormat": "received {{tier}}"
        },
        {
          "expr": "rate(substrate_dropped_total[1m])",
          "refId": "B",
          "legendFormat": "dropped {{tier}}"
        }
      ]
    },
    {
      "id": 6,
      "title": "Per-tier latency (µs)",
      "type": "timeseries",
      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 4 },
      "datasource": { "type": "prometheus", "uid": "${datasource}" },
      "fieldConfig": { "defaults": { "unit": "µs", "decimals": 0 } },
      "targets": [
        {
          "expr": "substrate_latency_us{quantile=\"0.5\"}",
          "refId": "A",
          "legendFormat": "p50 {{tier}}"
        },
        {
          "expr": "substrate_latency_us{quantile=\"0.99\"}",
          "refId": "B",
          "legendFormat": "p99 {{tier}}"
        },
        {
          "expr": "substrate_latency_us{quantile=\"0.999\"}",
          "refId": "C",
          "legendFormat": "p999 {{tier}}"
        }
      ]
    },
    {
      "id": 7,
      "title": "Channel depth (vs. capacity)",
      "type": "timeseries",
      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 12 },
      "datasource": { "type": "prometheus", "uid": "${datasource}" },
      "fieldConfig": { "defaults": { "unit": "short" } },
      "targets": [
        {
          "expr": "substrate_channel_depth",
          "refId": "A",
          "legendFormat": "depth {{tier}}"
        },
        {
          "expr": "substrate_channel_capacity",
          "refId": "B",
          "legendFormat": "capacity {{tier}}"
        }
      ]
    },
    {
      "id": 8,
      "title": "Decode errors (rate)",
      "type": "timeseries",
      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 12 },
      "datasource": { "type": "prometheus", "uid": "${datasource}" },
      "fieldConfig": { "defaults": { "unit": "cps" } },
      "targets": [
        {
          "expr": "rate(substrate_decode_errors_total[1m])",
          "refId": "A",
          "legendFormat": "decode_errors {{tier}}"
        }
      ]
    }
  ]
}