According to a new report by researchers in Australia, stress tests have revealed that the "infrastructure-on-demand services offered by Amazon, Google and Microsoft suffer from regular performance and availability issues."
The seven-month study of Amazon's EC2, Google's App Engine, and Microsoft's Azure cloud computing services simulated 2,000 concurrent users connecting to services from each of the three providers, with researchers measuring response times and other performance indicators.
The results were at best mixed, and at worst, severely dysfunctional. For example, I'd never heard that when using Google App Engine, none of your data-processing tasks can last longer than 30 seconds, lest the service throw an exception back at you.
Researchers found that the three platforms "delivered wildly variable performance results as Amazon, Google and Microsoft trialled, added and dropped new features." … Read more