# Container Insights performance log reference
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This section includes reference information about how Container Insights uses performance log events to collect metrics. When you deploy Container Insights, it automatically creates a log group for the performance log events. You don't need to create this log group yourself.

**Topics**
+ [Container Insights performance log events for Amazon ECS](Container-Insights-reference-performance-logs-ECS.md)
+ [Container Insights performance log events for Amazon EKS and Kubernetes](Container-Insights-reference-performance-logs-EKS.md)
+ [Relevant fields in performance log events for Amazon EKS and Kubernetes](Container-Insights-reference-performance-entries-EKS.md)