Using your rightsizing recommendations - Amazon Cost Management
Enhancing your recommendations using CloudWatch metrics
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Using your rightsizing recommendations

You can see the following top-level key performance indicators (KPIs) in your rightsizing recommendations:

  • Optimization opportunities – The number of recommendations available based on your resources and usage

  • Estimated monthly savings – The sum of the projected monthly savings associated with each of the recommendations provided

  • Estimated savings (%) – The available savings relative to the direct instance costs (On-Demand) associated with the instances in the recommendation list

To filter your rightsizing recommendations

  1. Open the Amazon Billing and Cost Management console at https://console.amazonaws.cn/costmanagement/home.

  2. In the navigation pane, under Legacy pages, choose Rightsizing.

  3. On the Rightsizing recommendations page, under Recommendation parameters, filter your recommendations by selecting any or all of the following check boxes:

    • Idle instances

    • Underutilized instances

    • Include Savings Plans and Reserved Instances

  4. Under Findings, use the search bar to filter by the following parameters:

    • Account ID (option available from the management account)

    • Region

    • Cost allocation tag

To view your rightsizing recommendations details

  1. Open the Amazon Billing and Cost Management console at https://console.amazonaws.cn/costmanagement/home.

  2. In the navigation pane, under Legacy pages, choose Rightsizing.

  3. On the Rightsizing recommendations page, under Findings, choose a recommendation to view the details.

Enhancing your recommendations using CloudWatch metrics

We can examine your memory utilization if you enable your Amazon CloudWatch agent.

To enable memory utilization, see Installing the CloudWatch Agent.

Important

When you create a CloudWatch configuration file, use the default namespace and default names for the collected metrics.

For InstanceID, choose append_Dimension. Do not add additional dimensions for individual memory or disk metrics. Disk utilization is currently not examined.

For Linux instances, choose mem_used_percent as your metric for your CloudWatch agent to collect. For Windows instances, choose "% Committed Bytes In Use".

For more information about the CloudWatch agent, see Collecting Metrics and Logs from Amazon EC2 Instances and On-Premises Servers with the CloudWatch Agent in the Amazon CloudWatch User Guide.