Amazon ECS Managed Instances adds cross-instance and Spot consolidation

Amazon ECS Managed Instances Infrastructure Optimization Updates

Amazon ECS Managed Instances introduces two infrastructure optimization updates: cross-instance and Spot consolidation. Cross-instance consolidation evaluates tasks running across multiple underutilized instances together, packing them onto fewer instances to raise utilization and lower costs. Spot consolidation extends this capability to Spot capacity, consolidating underutilized Spot Instances after first verifying replacement capacity is available.

Cross-instance consolidation evaluates and repacks tasks across multiple instances simultaneously, reducing the number of instances and raising CPU and memory utilization. For example, in testing with a capacity provider configured for c9g instances, cross-instance consolidation reduced the fleet from 19 instances to 13, raising CPU utilization from 42% to 91% and memory utilization from 41% to 88%.

Spot consolidation applies the same approach to Spot capacity, first verifying replacement capacity is available. These enhancements deliver deeper cost optimization for both On-Demand and Spot workloads.

What to do

• Review the documentation for more details on cross-instance and Spot consolidation.

Source: AWS release notes

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