The new Opteron 6300: Finally Tested!by Johan De Gelas on February 20, 2013 12:03 AM EST
Java Server Performance
The SPECjbb®2013 benchmark is based on a " usage model based on a world-wide supermarket company with an IT infrastructure that handles a mix of point-of-sale requests, online purchases and data-mining operations". It uses the latest Java 7 features, makes use of XML, compressed communication and messaging with security.
We tested with four groups of transaction injectors and backends. We applied a relatively basic tuning to mimic real world use.
"-server -Xmx4G -Xms4G -Xmn1G -XX:+AggressiveOpts -XX:+UseLargePages-server -Xmx4G -Xms4G -Xmn1G -XX:+AggressiveOpts -XX:+UseLargePages"
With these settings, the benchmark takes about 40GB of RAM.
Since SPECJBB®2013 is very new, we will research the benchmark in more detail later. The first results are very interesting though. Notice how one Opteron 6380 edges out the Xeon 2660. Once we double the amount of CPUs, the Xeon outperforms the best Opteron by 17%. The fact that each Opteron processor is a dual NUMA node is not helping the Opteron. It is clear that the single die or "native octal-core" approach scales better here (for now).
SPECJBB®2013 is a registered trademark of the Standard Performance Evaluation Corporation (SPEC).