Here’s how to get the EFS Burst Credits from CloudWatch via AWS CLI.
aws cloudwatch get-metric-statistics \ --namespace "AWS/EFS" \ --metric-name BurstCreditBalance \ --dimensions "Name=FileSystemId,Value=fs-xxxxxxx" \ --start-time 2019-12-31T00:00:00Z \ --end-time 2019-12-31T01:00:00Z \ --statistics Average \ --period 3600 \ --profile default |
Notice the start time, end time, period and statistics. Here’s the CLI doc.