How Infrastructure Performance works
Network latency measurements are an aggregate of latency performance information captured by active probing between AWS managed probes within the AWS global network.
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Inter-Region latency metrics are generated by aggregating latency measurements from probes located across AWS Regions, filtered on your chosen source and destination AWS Region pairs.
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Inter-Availability Zone latency metrics are generated by aggregating latency measurements from probes located across Availability Zones, filtered on your chosen source and destination Availability Zones.
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Intra-Availability Zone latency metrics are generated by aggregating latency measurements between all probes within a single Availability Zone. This includes all probes that are across AWS data centers, and within the same data center, for the chosen Availability Zone.
The placement of the probes is not related to EC2 instances or AWS services running in your account. For these reasons, the same latency metric data is presented in all AWS accounts.
How latency is calculated
Metric data is generated by computing the median (P50) of all latency
measurements from AWS managed probes for every five-minute (5M) interval.
Latency metrics represent round-trip traffic latency of synthetic traffic streams between selected sources and destinations. This is a combination of the latency of the underlying physical network and the latency between the host and the underlying physical network. The Infrastructure Performance dashboard also provides a network health status, indicating whether the aggregate network latency is normal or degraded. The health status is determined based on expected AWS network performance between AWS Regions and Availability Zones. The health status is available only for inter-Region and inter-Availability Zone metrics.
Note
In case of a degraded health status, AWS is automatically notified of the incident.
Region availability
Infrastructure Performance is available in the following AWS Regions:
| AWS Region | Description |
|---|---|
| us-east-1 | US East (N. Virginia) |
| us-east-2 | US East (Ohio) |
| us-west-1 | US West (N. California) |
| us-west-2 | US West (Oregon) |
| ap-east-1 | Asia Pacific (Hong Kong) |
| ap-south-1 | Asia Pacific (Mumbai) |
| ap-northeast-3 | Asia Pacific (Osaka) |
| ap-northeast-2 | Asia Pacific (Seoul) |
| ap-southeast-1 | Asia Pacific (Singapore) |
| ap-southeast-2 | Asia Pacific (Sydney) |
| ap-northeast-1 | Asia Pacific (Tokyo) |
| ap-southeast-3 | Asia Pacific (Jakarta) |
| ca-central-1 | Canada (Central) |
| eu-central-1 | Europe (Frankfurt) |
| eu-west-1 | Europe (Ireland) |
| eu-west-2 | Europe (London) |
| eu-west-3 | Europe (Paris) |
| eu-north-1 | Europe (Stockholm) |
| eu-south-1 | Europe (Milan) |
| sa-east-1 | South America (São Paulo) |
| af-south-1 | Africa (Cape Town) |
| me-south-1 | Middle East (Bahrain) |
