White Papers

Performance
As previously mentioned, each configured test group applied a unique VM workload:
• DVDStore
• Fileserver Simulation on Iometer
• Exchange Jetstress
• Webserver Simulation on Iometer
Each of these workloads stress the server at varying intensities giving a broad spectrum of data to analyze.
Performance data collected is critiqued by completed task per time; the more tasks completed per unit of time
results in greater performance. All 4 tests resulted in performance reads similar to the examples below:
Figure 2: The comparison of Fileserver Mbps show that 25GbE considerably outperforms 10GbE
for 12 and 16 VMs
Figure 3: Although not as significant as Fileserver data, the 25GbE cable is still outperforming the
10GbE cable for 12 and 16 VMs
The overall per VM performance of 16 VMs running on 25GbE was comparable to 8 VMs on 10GbE.
Conversely, for both 12 and 16 VMs on 10GbE the average 25GbE performance increases by 14% and 31%
respectively. This improvement establishes that significant ethernet degradation exists on the 10GbE adapter
and 25 GbE is warranted.