Elisabeth Stahl on Benchmarking and IT Optimization

POWER8 (and No. 23) is King

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So it was just announced that LeBron James will be back wearing No. 23 for his return to the Cleveland Cavaliers next season. Cleveland, the old “mistake by the lake” and my current hometown, has had a pretty good last few weeks. With two major coups — a US political national convention and (against all odds) LeBron coming home, there couldn’t be a better place to be.

POWER8 systems have had an awesome month as well. As we know, on top of enterprise RAS and security, performance of POWER8 is king. Let’s take a look at the two latest leadership benchmark results that have been published in two key workloads — Java and virtualization.

  • SPECjbb2013 is THE Java server benchmark. It is 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. Two metrics are important – a pure throughput metric and a metric that measures critical throughput under service-level agreements (SLAs) specifying response times. So very real world. And the IBM Power S824 (POWER8) system achieved over 95% better performance per core than  Oracle SPARC and over 2x better than x86 Cisco UCS. (1)


  • The SPECvirt_sc2013 virtualization benchmark reflects the heavy volume and sudden peaks of traffic faced by datacenter servers used for virtualized server consolidation. It provides four workloads based on real-world traffic faced by a web server, a Java application server, an email server and a batch server. Again, here are the workloads we use every day.And the IBM Power S824 (POWER8) system achieved the #1 result per core and is over 2x the performance per core of the HP DL560 x86 system. (2)


So we are talking a winning technology with POWER8 — and a winning city (LeBron, please take us there!)


The postings on this site solely reflect the personal views of the author and do not necessarily represent the views, positions, strategies or opinions of IBM or IBM management.

(1)SPECjbb2013: IBM Power S824 (POWER8, 3.52 GHz, 4 chips/24 cores/192 threads), 167958 SPECjbb2013-MultiJVM max-jOPS, 27041 SPECjbb2013-MultiJVM critical-jOPS vs. Oracle SPARC T5-2 (2 chips/32 cores/256 threads) 114492 SPECjbb2013-MultiJVM max-jOPS, 43963 SPECjbb2013-MultiJVM critical-jOPS vs. Cisco UCS C460 (4 chips/60 cores/120 threads) 201117 SPECjbb2013-MultiJVM max-jOPS, 52784 SPECjbb2013-MultiJVM critical-jOPS . Source:
(2)SPECvirt_sc2013: IBM Power S824 (POWER8, 3.52 GHz, 24-core), PowerVM Enterprise Edition 2.2.3, 1370@79 SPECvirt_sc2013@VMs vs. HP DL560 (32-core, Intel Xeon E5-4650), 908@50 SPECvirt_sc2013VMs. Source:

All results current as of July 28, 2014.

SPEC, SPECint, SPECfp, SPECjbb, SPECweb, SPECjAppServer, SPECjEnterprise, SPECjvm, SPECvirt, SPECompM, SPECompL, SPECsfs, SPECpower, SPEC MPI and SPECpower_ssj are trademarks of the Standard Performance Evaluation Corporation (SPEC).

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Written by benchmarkingblog

July 28, 2014 at 3:41 pm

Posted in POWER8, SPECjbb, SPECvirt

Tagged with , ,

One Response

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  1. […] a single Power 8 CPU socket can have up to 96 parallel working threads.  That gives an awesome performance.  The Power 8 CPU also supports up to 1 TB of RAM and it is said it can tackle 230GB/sec sustained […]

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