White Papers

© 2019 Dell Inc. or its subsidiaries. All Rights Reserved. Dell, EMC and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Processor Utilization
Figure 6: By comparing both 16 VM averages, we can see that the lack of bandwidth at 10GbE limited processor
utilization.
Throughput
Figure 7: In this environment, 25GbE and 10Gbe were directly compared downloading ~4TB of movie files until
completed. The 10GbE ethernet cable averages about 2Gbps therefore restricting its maximum performance. On the
other hand, the 25GbE ethernet caps out at 4Gbps, allowing for the movie files to complete download in 2/3 the time.
Conclusion
Combining the Dell EMC PowerEdge R740xd with the Broadcom 57414 NetXtreme-E Dual-Port 10/25GbE
PCIe adapter running at 25GbE improves performance, latency, CPU utilization and throughput. When scaling
and utilizing a PowerEdge enterprise with VM density we urge our customers to determine whether upgrading
the network adapter from 10GbE to 25GbE is required to protect against bottlenecking. Failing to do so could
result in an underutilized infrastructure.