A Principled Technologies test report 6
Performance and TCO: Dell PowerEdge R820 vs.
HP ProLiant DL585 G7
Figure 7 presents CPU utilization and power statistics during our testing. The
power results with VMs running no workloads show the power for the servers with no
workloads actively running; the servers still host VMs, which uses more power than
completely idle servers running no VMs. We recorded power and CPU utilization
statistics with all VMs running workloads when our database tests were running.
All VMs running workloads
Performance/watt
percentage win
Figure 7: CPU utilization, power, and performance/watt statistics for the two servers.
WHAT WE TESTED
To test the database performance of the servers, we set up 16 VMs on each
server. We configured each VM with 4 vCPU, 12GB of memory and a virtual NIC. Each
VM ran Windows Server 2008 R2 with its own 5GB SQL Server 2012 database. We used
the DVD Store Version 2.1 benchmark to create our workload.
About DVD Store Version 2.1
To create our real-world ecommerce workload, we used the DVD Store Version
2.1 (DS2) benchmarking tool. DS2 models an online DVD store, where customers log in,
search for movies, and make purchases. DS2 reports these actions in orders per minute
(OPM) that the system could handle, to show what kind of performance you could
expect for your customers. The DS2 workload also performs other actions, such as
adding new customers, to exercise the wide range of database functions you would
need to run your ecommerce environment. For more information about the DS2 tool,
see http://www.delltechcenter.com/page/DVD+Store.
IN CONCLUSION
Populating your data center with servers with powerful processors can do more
than just deliver excellent performance for your applications. In our tests, we found that
the Intel Xeon processor E5-4650-based Dell PowerEdge R820 server outperformed the
HP ProLiant DL585 G7 by 13.9 percent. The power-efficient PowerEdge R820 also
provided 117.3 percent better performance/watt, and delivered 127.8 percent more
performance per U on an individual server, for an estimated 139.2 percent more
performance when filling a 42U rack.
With more performance and the potential to save you up to 27.7 percent in TCO
over three years, the Dell PowerEdge R820 is a smart solution for your data center.
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