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White Paper ⏐Performance Report PRIMERGY TX150 S6 Version: 5.1, November 2008

Benchmark results

In June 2008 the PRIMERGY TX150 S6 was measured with an Intel Xeon X3360 processor and 4 GB of PC2-6400E

DDR2-SDRAM memory. The measurement was taken under Windows Server 2003 R2 Enterprise x64 Edition and a

JRockit(R) 6.0 P27.5.0 JVM by Oracle was used.

With the Xeon X3360 processor the PRIMERGY TX150 S6 achieved a world record score which exceeded the previous

front runner by 6.7%

in energy efficiency. Compared to the measurement on the IBM System x3200 M2 which was per-

formed with the same processor and achieved nearly the same throughput in ssj_ops this advance of the

SPECpower_ssj2008 result of the PRIMERGY TX150 S6 is explained only by the lower power consumption at all load

levels.

Additional tests with different configurations have been performed to show their influence on the server efficiency. Fujitsu

does not submit all SPECpower_ssj2008 measurements for publication at SPEC. So, not all the results presented here

appear on SPEC’s web sites. But because we archive the results and log data for all measurements, we are able to

prove the correct execution of the measurements at any time.

The adjoining diagram shows the result

graph of the configuration described above,

measured with the PRIMERGY TX150 S6.

The red horizontal bars show the perform-

ance to power ratio in ssj_ops/watt (upper

x-axis) for each target load level which are

tagged on the y-axis of the diagram. The

blue line shows the run of the curve for the

average power consumption (bottom x-

axis) at each target load level marked with

a small rhomb.

ent.

The diagram shows how the efficiency of

the server decreases with each target load

level from 100% to active idle in 10% seg-

ments. The black vertical line shows the

benchmark result of 1,124 overall

ssj_ops/watt for the PRIMERGY TX150 S6.

This is calculated by adding the measured

transaction throughputs for each segment

and then dividing by the sum of the aver-

age power consumed for each segm

The configuration was tuned to get the best possible result for this server in terms of performance per watt. The memory

configuration with 2 x 2 GB was selected to meet the criteria of best performance at lowest power consumption by popu-

lating only one slot of each available memory channel. This configuration enables the benchmark to use the full capacity

of the available memory bandwidth and at the same time consume less power than a comparable performance equiva-

lent 4 DIMMs configuration. We used the SATA base unit which has an integrated SATA controller in the chipset along

with a 160 GB 3.5” SATA hard disk. Due to the absence of a dedicated onboard SAS controller which is included in the

SAS base unit and the lower rotational speed of 7,200 rpm of the SATA hard disk this configuration was the best choice

for this benchmark, because it consumes minimal power without impacting the performance. The most important factor in

the hardware configuration is the right choice of the processor. Processors are the part of a server that consumes the

most power beside the memory subsystem. For the PRIMERGY TX150 S6 the quad-core Xeon X3360 processor with a

Thermal Design Power (TDP) of 95 watts showed the most efficient result. The influence of the different CPUs and other

configuration options on the SPECpower_ssj2008 result is presented in subsequent diagrams.

* Competitive benchmark results stated above reflect results published as of Jun 4

, 2008. The comparison presented

above is based on the most efficient servers currently shipping by IBM and Fujitsu Siemens Computers, now operating

under the name of Fujitsu. For the latest SPECpower_ssj2008 benchmark results, visit

http://www.spec.org/power_ssj2008/results.