Positive cloud adoption metrics from reddit:
“As most of you know, we moved reddit to EC2 back in May of 2009. Our experience there has been excellent so far. Since we moved to EC2, the number of unique users has gone up 50%, and pageviews are up more than 100%. To support this growth, we have added 30% more ram and 50% more CPU, yet because of Amazon’s constant price reductions, we are actually paying less per month now than when we started.”
The reddit blog post was in response to opinions that reddit’s site had slowed since the move to Amazon. The post continues with a “nerd alert” section on the volume-based cause of the slowdown, and described the necessary changes to reddit’s database and caching architecture.
I won’t replicate the description here, but suffice it to say, scale doesn’t guarantee performance.
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