Friday, May 8, 2009

IBM System x breaks 2K barrier on SPECpower_ssj2008

Performance to Power Ratio score of 2066 overall ssj_ops/watt * running IBM J9.

* updated May 25, 2009 to point at updated IBM newblurb with new score

SPEC is a registered trademark and SPECpower_ssj is a trademark of the Standard Performance Evaluation Corporation (see for all SPEC trademarks and service marks).

Monday, March 30, 2009

IBM J9 SPECjbb2005 results used in the Intel Nehalem launch

It's been fun following Intel's launch of the 2-socket Nehalem chip. This is the first time that I can remember having SPECjbb2005 results available on launch day using each of the 'big 3' JVMs.

Kudos to Oracle JRockit for having the first Nehalem based SPECjbb2005 results available on using a new P28.0.0. JVM.

The Sun HotSpot results using a new Java 6 Update 14 Performance Release are referenced here.

The IBM J9 result is 8-10% faster than the JRockit and HotSpot results .... not surprisingly Intel went with the J9 result on their Nehalem benchmark page.

The postings on this site are my own and don’t necessarily represent IBM’s positions, strategies or opinions.

SPEC and SPECjbb are registered trademarks of the Standard Performance Evaluation Corporation.

Results referenced are current as of March 30, 2009. The SPECjbb2005 results have been submitted to SPEC for review. Upon successful review, the result will be posted at, which contains a complete list of published SPECjbb2005 results. SPEC, SPECjbb reg tm of Standard Performance Evaluation Corporation.

IBM BladeCenter HS22 (2 chips, 8 cores) SPECjbb2005 bops = 604,417, SPECjbb2005 bops/JVM = 151,104.
Sun Branded Intel Xeon X5570 System (2 chips, 8 cores) SPECjbb2005 bops = 556,882, SPECjbb2005 bops/JVM = 278,441.
PowerEdge M710 (2 chips, 8 cores) SPECjbb2005 bops = 549,197, SPECjbb2005 bops/JVM = 274,599.