Posted on July, 29th 2009
How Amazon's CPU hardware influences your EC2 instance performance
Infinibase has published some interesting benchmark stats on their blog. They explain how much the actual CPU type that you will be assigned for your EC2 instance will impact the performance of your instance.
Their blog entry "MySQL on EC2 Part 1: are all instances equal?" concludes: "The conclusion: in the EC2 “roulette”, you should hope to get an Intel Xeon!". They also provide a graph of the distribution of CPU vendors per instance type. Quote: "It is interesting to notice that high-CPU instances always got Intels and small instances almost always got AMDs."
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