Haven’t heard too many stories about Amazon SimpleDB, so I have found these notes quite Interesting:
In reality, the single put rate slows down the more full your domains become, so you don’t get this rate throughout.
Is this a sign of non-linear scalability?
You can achieve a pretty good rate of data upload into SimpleDB — 35M records in 55 minutes across the US (west coast to east coast).
Make sure you check the data description before jumping to any conclusions.
[when trying to maintain a 10K items/sec upload rate] Source Oracle DB was a bottle-neck