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Amazon created a whole new class of service with their Provisioned IOPS for RDS, EBS, and DynamoDB. The idea is simple. If you want more performance, you turn a dial up. If you want less, you turn a dial down. A beautifully simple model. You pay for the performance you want, which is different than their previous cloud model, where performance varied, but you paid only for what you used.
The question: Do these higher priced services really work better?
Rodrigo Campos put this question to the test (only for EBS) by running a benchmark he describes in IOMelt Provisioned IOPS EBS Benchmark Results - December 2012.
The result? Yes, AWS Provisioned IOPS Volumes Really Deliver More Consistent and Higher Performance IO:
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