With dozens of possible cost metrics, it's easy to drown in data. Focus on these 10 to drive meaningful cost optimization.
Efficiency Metrics
1. Cost per Unit of Business Value
The most important metric: what does cloud cost relative to business output?
•Cost per transaction
•Cost per active user
•Cost per API call
If this number is trending down, you're becoming more efficient even if absolute spend is increasing.
2. Resource Utilization Rate
What percentage of provisioned capacity is actually used?
•Target: 60-80% average utilization for production compute
•Below 40%: Over-provisioned, optimization opportunity
•Above 90%: Risk of performance issues
3. Coverage Rate
What percentage of eligible spend is covered by commitments (Universal Credits, reserved capacity)?
•Target: 70-80% of steady-state workloads
•Below 50%: Leaving discount money on the table
•Above 90%: Risk of wasting commitment if workloads decrease
Spending Metrics
4. Total Monthly Spend
The headline number. Track month-over-month and year-over-year trends.
•Distinguish between growth (good) and waste (bad)
•Compare actual vs. budget
•Break down by business unit
5. Spend by Service
Which OCI services consume the most budget? Typically:
1. Compute (40-50%)
2. Database (15-25%)
3. Storage (10-15%)
4. Networking (5-10%)
5. Other services (10-15%)
Track these proportions over time. A sudden shift might indicate an issue.
6. Daily Run Rate
Your current daily spend, projected to monthly. More responsive than waiting for the monthly bill.
•Calculate: last 7 days average × 30
•Compare to budget: on track, under, or over?
•Use for mid-month course corrections
Optimization Metrics
7. Waste Ratio
Estimated waste as a percentage of total spend:
•Idle resources (running but unused)
•Over-provisioned instances (allocated but not consumed)
•Unattached volumes (provisioned but not mounted)
Target: below 15%. Industry average: 30-35%.
8. Anomaly Count
How many cost anomalies detected per month?
•High count might indicate instability or lack of governance
•Decreasing count over time indicates improving cost hygiene
•Zero count might indicate insufficient monitoring sensitivity
9. Optimization Savings Rate
Monthly savings from implemented optimizations, expressed as:
•Absolute dollars saved
•Percentage of total spend
•Cumulative savings over time
This metric motivates teams and demonstrates FinOps ROI.
Governance Metrics
10. Untagged Resource Percentage
What percentage of your resources lack required tags?
•Target: below 5%
•Above 20%: Cost allocation is unreliable
•Track trend: should be decreasing as tagging governance improves
Tracking with OCIFinOps
OCIFinOps provides most of these metrics out of the box:
•Total spend and daily run rate on the dashboard
•Service-level breakdown in the cost explorer
•Anomaly detection and counts
•Idle resource identification for waste ratio
For metrics like cost-per-business-unit or coverage rate, use the natural language query interface to pull specific numbers.
The key: don't track all 10 from day one. Start with total spend, spend by service, and daily run rate. Add more metrics as your FinOps practice matures.