Quick Answer
The ci/cd pipeline resource contention index calculator computes resource contention index from the input values you provide.
Calculator
Result Interpretation
CI/CD Pipeline Resource Contention Index Calculator computes Resource Contention Index in dimensionless using the defined engineering formula and the input values provided. Resource Contention Index is expressed in dimensionless. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Target SLA for queue wait time = 30
- Maximum concurrent pipelines supported by agent pool = 25
- Number of concurrently executing pipelines = 8
- Average pipeline queue wait time = 12
- Standardized skew of per-agent CPU+memory utilization distribution = 0.15
Expected Result:
- Resource Contention Index = 0.1472
Engineering Interpretation:
Under the given input conditions, the calculated result is: Resource Contention Index = 0.1472 dimensionless.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
resource contention index = (number of concurrently executing pipelines / maximum concurrent pipelines supported by agent pool) * (average pipeline queue wait time / target sla for queue wait time) * (1 + abs(standardized skew of per-agent cpu+memory utilization distribution))Resource Contention Index.
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| concurrent_pipelines | Number of concurrently executing pipelines | INPUT | Number of concurrently executing pipelines |
| max_agent_capacity | Maximum concurrent pipelines supported by agent pool | INPUT | Maximum concurrent pipelines supported by agent pool |
| avg_queue_wait_time_s | Average pipeline queue wait time | INPUT | Average pipeline queue wait time |
| target_sla_s | Target SLA for queue wait time | INPUT | Target SLA for queue wait time |
| agent_utilization_skew | Standardized skew of per-agent CPU+memory utilization distribution | INPUT | Standardized skew of per-agent CPU+memory utilization distribution |
| resource_contention_index | Resource Contention Index | OUTPUT | Resource Contention Index |
Calculation Steps
- Enter the number of concurrently executing pipelines in dimensionless.
- Enter the maximum concurrent pipelines supported by agent pool in dimensionless.
- Enter the average pipeline queue wait time in s.
- Enter the target sla for queue wait time in s.
- Enter the standardized skew of per-agent cpu+memory utilization distribution in dimensionless.
- Step 1: Compute resource contention index.
- Read the resource contention index (dimensionless) from the results.
Frequently Asked Questions
What does this calculator calculate?
The CI/CD Resource Contention Index Calculator estimates Resource Contention Index based on the input parameters you provide
Why is number of concurrently executing pipelines important in this calculation?
number of concurrently executing pipelines is directly proportional to resource contention index. When you enter number of concurrently executing pipelines in dimensionless, the calculator uses it in the engineering formula to compute the output
How should I interpret the result resource contention index?
The calculator outputs resource contention index in dimensionless. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Number of concurrently executing pipelines (dimensionless), Maximum concurrent pipelines supported by agent pool (dimensionless), Average queue wait time (s), Target SLA for queue wait time (s), Standardized skew of per-agent CPU+memory utilization distribution (dimensionless). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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