Understand your savings opportunity estimate

To help you optimize your budget, the cost management system calculates a savings opportunity. Your savings opportunity is an estimate of how much money you could save by reducing unused resources.

Currently, the cost management system calculates your savings opportunity estimate at the node level. For the context, the pod, node, and cluster infrastructure elements are defined as follows:
  • Pod: the smallest deployable units of computing that you can create and manage in OpenShift. A group of one or more containers, with shared storage and network resources, and a specification for how to run the containers.
  • Node: a physical or virtual computer that runs and hosts multiple pods
  • Cluster: a collection of nodes connected together to work as a single unified system

Cost management uses the following equation to calculate your savings opportunity estimate:

Savings opportunity estimate for node x = (cost of node x) * (1 - total node usage/total request)

Example:
  • Cost of node x: $3
  • Total node usage: 3 units
  • Total request: 8 units
Savings opportunity estimate for node x = $3 * (1 - 3/8)

Savings opportunity estimate for node x = $1.875

Limitations of savings opportunity estimate
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Because cost management currently calculates savings opportunity at the node level, there are two extreme cases that could influence the estimate:

  • The spread of pod efficiency ratios: the greater the variance in efficiency from pod to pod, the larger the discrepancy between the exact savings opportunity and the estimated savings opportunity.
  • The distribution of pod cost: if the least efficient pods also carry the highest cost, the estimate’s error decreases; if the reverse is true, and the most efficient pods carry the highest costs, the estimate’s error increases.
Note
Work is in progress towards an exact calculation of the savings opportunity. This documentation will be updated when it is available.

View your savings opportunity estimate
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Review your savings opportunity estimate to optimize your budget and identify unused resources.

Before you begin
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  • You are logged in to the Hybrid Cloud Console.
  • You have resource optimization for OpenShift enabled and configured.

Procedure
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  1. Navigate to Cost Management > Optimizations.
  2. Click the Efficiency tab. This tab contains the CPU workload efficiency and the Memory workload efficiency tables that display the savings opportunity estimate.
  3. Use the Group-by and Filter menus to organize and narrow your data by project or cluster.