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I see a lot of information on EBS volume types and its max IOPS / max throughput but not any information on S3. Can someone help me find out what is the maximum IOPS / max throughput for aws S3? And is the max IOPS limit per bucket or per account?
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Traffic between Amazon EC2 and Amazon S3 can leverage up to 100 Gbps of bandwidth to VPC endpoints and public IPs in the same Region.
Typically, storage device vendors use smallest possible block sizes (512 bytes for magnetic disks, 4K for SSDs) to measure IOPS (read on and it will be clear soon as to why). Throughput is the measure of the amount of data transferred from/to a storage device in a second.
Amazon S3 now provides increased performance to support at least 3,500 requests per second to add data and 5,500 requests per second to retrieve data, which can save significant processing time for no additional charge.
You can increase your read or write performance by using parallelization. For example, if you create 10 prefixes in an Amazon S3 bucket to parallelize reads, you could scale your read performance to 55,000 read requests per second. Similarly, you can scale write operations by writing to multiple prefixes.
EBS is block storage attached to an EC2 instance. S3 is object storage that you connect to over the Internet. You aren't going to get an IOPS metric for S3. I don't think they publish a max throughput/max transmission rate value for S3. I would suggest reading this page in the S3 documentation: Request Rate and Performance Considerations. You could also look into S3 Transfer Acceleration, or CloudFront for increased transfer rate.
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