More SPARC T5 Performance Results

Performance results for the new SPARC T5 systems keep coming in...

Last week, SPEC published the most recent result for the SPECjbb013-MultiJVM benchmark. This benchmark "is relevant to all audiences who are interested in Java server performance, including JVM vendors, hardware developers, Java application developers, researchers and members of the academic community" according to SPEC.

All of the published results are at: http://www.spec.org/jbb2013/results/jbb2013multijvm.html.

For the first table below, I selected all of the max-JOPS results greater than 50,000 JOPS using the most recent Java version, for the SPARC T5-2 and for competing systems. From the SPECjbb2013 data, I derived two new values, max-JOPS/chip and max-JOPS/core. The latter value compensates for the different quantity of cores used in one of the tests. Finally, the "Advantage of T5" column shows the portion by which the T5-2 cores perform better than the other systems' cores. For example, on this benchmark a 32-core T5-2 computer demonstrated 15% better per-core performance than an HP DL560p with the same number of cores.

As you can see, a SPARC T5 core is faster than an Intel Xeon core, compared against competing systems with 32 or more cores.

Model CPU Chips Cores OS max-JOPS Date Published max-JOPS per chip max-JOPS per core Advantage of T5
SPARC T5-2 SPARC T5 2 32 Solaris 11.1 75658 April 2013 37829 2364
HP ProLiant DL560p Gen8 Intel E5-4650 4 32 Windows Server 2008 R2 Enterprise 67850 April 2013 16963 2120 12%
HP ProLiant DL560p Gen8 Intel E5-4650 4 32 RHEL 6.3 66007 April 2013 16502 2063 15%
HP ProLiant DL980 G7 Intel E7-4870 8 80 RHEL 6.3 106141 April 2013 13268 1327 78%

The SPECjbb2013 benchmark also includes a performance measure called "critical-JOPS." This measurement represents the ability of a system to achieve high levels of throughput while still maintaining a short response time. The performance advantage of the T5 cores is even more pronounced.

Model CPU Chips Cores OS critical- JOPS Date Published critical- JOPS per chip critical- JOPS per core Advantage of T5
SPARC T5-2 SPARC T5 2 32 Solaris 11.1 23334 April 2013 11667 729
HP ProLiant DL560p Gen8 Intel E5-4650 4 32 Windows Server 2008 R2 Enterprise 16199 April 2013 4050 506 44%
HP ProLiant DL560p Gen8 Intel E5-4650 4 32 RHEL 6.3 18049 April 2013 4512 564 29%
HP ProLiant DL980 G7 Intel E7-4870 8 80 RHEL 6.3 23268 April 2013 2909 291 151%

As always, care should be taken in choosing a benchmark that is similar to the workload that you will run on a computer. For example, if you plan to implement a database server, using the SPECint benchmark will not help you, because that benchmark merely measures the performance of the CPU cores and speed and size of memory caches (and perhaps the memory system). It does not measure performance of network or disk I/O, and both of those are important factors in database performance - especially storage I/O.

According to the SPECjbb2013 design document, this benchmark "exercises the CPU, memory and network I/O, but not disk I/O." Because of this, it can be used as a simple method to estimate relative Java processing performance. From the data shown in the tables above, it is clear that the newest SPARC cores deliver Java performance that is competitive with the most recent Intel Xeon CPU cores.

Edit [2013.04.23]: Jim Laurent uses the same benchmark results in a quick look at the smooth scalability of Solaris 11, compared to RHEL6.

For more information on recent SPARC T5 world records, see https://blogs.oracle.com/BestPerf/.

SPEC and the benchmark name SPECjbb are registered trademarks of Standard Performance Evaluation Corporation (SPEC). Results as of 4/21/2013, see http://www.spec.org for more information.

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Jeff Victor writes this blog to help you understand Oracle's Solaris and virtualization technologies.

The views expressed on this blog are my own and do not necessarily reflect the views of Oracle.

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