The focus of this study is to conduct a performance per watt comparison of the latest (14th generation) 4-socket rack server from Dell EMC (PowerEdge R940) to the previous (13th generation) 4-socket rack server (PowerEdge R930.) Testing was done on Two ESXi clusters each with two server hosts. One cluster made up of 2xPowerEdge R940s. The other made up of 2xPowerEdge R930s. For this study, VMmark3 which is the latest server virtualization benchmark for VMware vSphere was configured to use SPEC rated power meters to measure power draw and capture ESXTOP counters to measure CPU utilization and other performance counters. VMmark3 benchmark generated an aggregate performance score for each cluster. Each with a corresponding performance per kilowatt score. This study compared the scores for various platform performance profiles as well as ESXi host power management settings as in the table below.
A brief overview of VMmark3 is as follows:
Multi-Host virtual machine benchmark
Simulates multiple simultaneous workloads in a virtualized environment (ESXi cluster)
Scalable Web Applications Simulation
E-Commerce Applications Simulation
Simulates infrastructure operations under load
Simultaneous server and storage relocations
Integrates with spec qualified power measurement devices (e.g. Yokogawa WT210)
Measures applications transactions rate and associated latencies
Calculates performance score by comparing transactions and infrastructures operations rate to a base system
A VMmark3 benchmark run is considered “compliant” if all workload VMs meet the quality of service requirements as defined by the benchmark. A unit of workload in VMmark3 benchmark is called a “Tile.” There are 19 VMs within VMmark3 tile.
Here is an overview of the study:
Note: Used Yokogawa WT210 Power meters to measure power consumption via VMmark3 Power and Temperature Daemon(PTD)
R940 Cluster (2-node DRS)
R930 Cluster(2-node DRS)
4xIntel® Xeon® Platinum 8180 Processor
4xIntel® Xeon® Processor E7-8890 v4
48x32GB Micron DDR4-2666(1.5TB)
64x16GB Hynix DDR4-2400 (1TB)
2x2700 Series QLE2742-SR-CK FCAL 32Gb, PCI-Express-v3-x8, 2-Channel, SFP+
5x6TB LUNs behind 5xDell ION Appliances configured for VMmark3 workload data store
5x6TB LUNs behind 5xDell ION Appliances
configured for VMmark3 workload data store
2xIntel 82599EB 10Gigabit SFP+
ESXi 6.5 Update 1
Dell PowerEdge R940 scored 33% higher than the PowerEdge R930 with VMmark3 benchmark.
Dell PowerEdge R940 drew 22% more power than PowerEdge R930 with VMmark3 benchmark.
Dell PowerEdge R940 scored 11% higher on VMmark3 performance per watt metric than the PowerEdge R930.
Posted on 5/1/2018