By Chris Hoff

There’s been a very interesting set of discussions lately regarding performance anomalies across Cloud infrastructure providers of late.  The most recent involves Amazon Web Services and RackSpace Cloud. Let’s focus on the former because it’s the one that has a good deal of analysis and data attached to it.

Reuven Cohen’s post (Oversubscribing the Cloud) summarizing many of these concerns speaks to the meme wherein he points to Alan Williamson’s initial complaints (Has Amazon EC2 become over subscribed?) followed by CloudKick’s very interesting experiments and data (Visual Evidence of Amazon EC2 network issues) and ultimately Rich Miller’s summary including a response from Amazon Web Services (Amazon: We Don’t Have Capacity Issues)