Home > Servers > Modular Servers > White Papers > Gen on Gen SQL Performance within MX vSAN Workloads > What our test results showed
In the initial phase of our testing, we ran four virtual machines on each server in our three-node workload clusters, for a total of 12 VMs per cluster. Figure 1 shows the results: the next-generation servers delivered 180,462 OPM, which is 18.7 percent more than the 151,923 OPM the current-generation cluster achieved.
During the first phase of testing, the next-generation cluster also achieved an average DVD Store 3 response time that was 18.4 percent less than that of the current-generation cluster.
During our first phase of testing, we pushed the current-generation servers to their peak performance, fully utilizing the processors. We observed that the same VM configuration on the next-generation cluster still had processor resources available. In our second phase of testing, we deployed one more virtual machine per host on the next-generation cluster, boosting VM density per node. This meant the next-generation cluster ran 15 VMs, a 25 percent increase over the 12 VMs on the legacy cluster. As Figure 2 shows, these additional VMs allowed the next-generation cluster to deliver 206,864 OPM, an increase of 36.1 percent over the current- generation cluster’s 151,923 OPM.