I recently posted a blog article about Cassandra and EC2 performance testing for small vs large, EBS vs ephemeral storage, compared to real HW with and without an SSD. Hope people find it interesting.
http://www.coreyhulen.org/?p=326 Highlights: - The variance in test results from run to run on EC2’s virtual hardware fluctuates A LOT. - EC2 is a finicky beast, but we like it. - Not all EC2 instances (for the same size ie. small) are created equal. - Large instances are not 4x as fast as small instances (even though they are 4x the price). - Kind of obvious, but real hardware is better…and yea SSD’s kick butt. - Automated scripts included. Please have at it and reproduce the results with different configurations. Thanks, -Corey
