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Be sure to review Amazon S3 pricing for data transfers. Note: If you turn on Transfer Acceleration, additional data transfer charges might apply. Review the Amazon S3 Transfer Acceleration Speed Comparison tool to see if Transfer Acceleration can improve performance for your use case. If the internet route from the client to Amazon S3 isn't optimal, consider using Amazon S3 Transfer Acceleration, which leverages Amazon CloudFront's edge locations. For a test that resembles requests to Amazon S3, be sure to run a TCP traceroute or mtr to the Regional endpoint of the bucket. Note: Many network devices don't respond to ICMP. On Windows operating systems, you can use a similar tool called tracert. Additionally, these tools can help identify if there's a network hop causing higher latency.įor example, the following Linux traceroute command uses TCP port 80 to test connectivity to the us-west-2 (Oregon) Regional endpoint: sudo traceroute -P TCP -p 80 s3.

They can also provide the latency of the packets that are sent to the remote host. Tools such as mtr and traceroute can help provide clues for potential packet loss. These issues can include packet loss, high number of hops, or other ISP-related issues. Review your network path for any issues that affect how your connection traverses the internet. The client internet service provider (ISP) As another option, consider migrating the client closer to the S3 bucket. You can configure cross-Region replication so that data in the source bucket is replicated into the destination bucket in the new Region. To decrease the distance between the client and the S3 bucket, move your data into a bucket in another Region that's closer to the client. Test an upload and download of the same file using both instances, and then compare the throughput between the two Regions. Then, launch another instance in a different Region. For example, you can launch an Amazon Elastic Compute Cloud (Amazon EC2) instance in the same AWS Region as the bucket. You can test the impact of geographical distance between the client and the S3 bucket. The geographical distance between the request and the bucket contributes to the time that it takes for a response to be received. Buckets are globally accessible, but they reside in a specific AWS Region. Use Amazon S3 buckets that are as geographically close to your client as possible.

The location of the client making requests The Amazon S3 server access logs to determine the Turn-Around Time.The client internet service provider (ISP).