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cost service: add per-VIN estimate derivation from actual metrics

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Based on cec-prd-cluster-1 data (2026-02-05):
- Event Hubs: ~90M msgs/hr, ~230GB/hr
- Active VINs: ~3,760
- AKS usage: ~43 cores / ~219GB
- Platform base estimate: ~34 cores / ~175GB
- Per-VIN marginal: ~2.4mc / ~12MB → rounded to 3mc / 10MB
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Chris Rai
2026-02-05 20:10:07 -05:00
parent 87f80d356a
commit 9a1da3c540
1 changed files with 7 additions and 1 deletions
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8
services/cost/README.md
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@@ -43,7 +43,13 @@ Incremental resources needed for each additional connected vehicle:
| Medium | 100-1000 | 5 | 15 |
| High | > 1000 | 6 | 20 |
*Based on ~3000 VINs using ~10 cores / 30GB marginal on top of platform base*
**Derivation (from cec-prd-cluster-1 metrics, 2026-02-05):**
- Event Hubs: ~90M messages/hour, ~230GB/hour incoming
- Active VINs: ~3,760
- AKS cluster usage: ~43 cores / ~219GB RAM
- Estimated platform base: ~34 cores / ~175GB (ClickHouse, Kafka consumers, services)
- Per-VIN marginal: (43-34)/3760 ≈ 2.4mc, (219-175)/3760 ≈ 12MB
- Rounded to 3mc / 10MB for conservative estimate
### Cost Rates