“In pursuit of answers, I set up almost 60 different sysbench fileIO test configurations with different kernels, filesystems, mount options and RAID block sizes. Once the best fit configuration was chosen from these experiments, I ran another 20 or so sysbench OLTP runs with other system permutations. The basic test methodology was identical across all trials: run the test for an hour collecting metrics at one second intervals, then drop the first 600 seconds to account for cache warm-up time and process the remainder.”