To quantify the impact of the described system on
Hadoop MapReduce applications, we experimented using a system with virtualized I/O whose configuration parameters are listed in Table 7(a). This system was compared to a
17-node Core i7 cluster with configuration parameters listed
in Table 7(b). The Core i7 cluster was chosen such that
the two systems represent the same power envelope. The
Core i7 cluster is rated at just under 4 kW for power consumption, and our system is rated at nearly 3.5 kW. Power
measurement for both systems included all the system components, specifically, it also included the Ethernet switch
power for the Core i7 cluster. Table 7(c) shows the four
benchmarks along with their input and output dataset sizes.
These are standard benchmarks used to quantify a Hadoop
clusters performance [20].