Fast! Java on UltraSPARC T2 Plus

Today Sun announced the next generation chip multi-threading (CMT) systems with the powerhouse UltraSPARC T2 Plus Processor and again Java is ready.  We've spent the last several months optimizing the Sun JDK and HotSpot JVM for UltraSPARC T2 Plus and the results are impressive.  Today, I again have the privilege to announce another Sun World Record, this time taking the lead with the new Sun SPARC Enterprise T5240 achieving a World Record 2 Socket SPECjbb2005 Result of 373,405 SPECjbb2005 bops, 23,338 SPECjbb2005 bops/JVM.

  • 1.94x scaling with  2 x 1.4Ghz UltraSPARC T2 Plus compared to 1 x 1.4Ghz UltraSPARC T2
  • Faster than all 4-Socket SPECjbb2005 results from IBM, including the IBM System p 570 with 4 x 4.7Ghz Power 6 CPUs !
  • Faster than all 4-Socket SPECjbb2005 results from HP (Actually faster than all results from HP outside of their 64-way Itanium2 systems)


Wow.  The UltraSPARC T2 Plus and Sun Java powered by the HotSpot JVM are a sweet combination, and this result was made possible with the highly optimized Java SE 6 Update 6-P which will be available in July 2008.  Take a look at http://java.sun.com/performance for the latest performance release.

Many, many engineers (and dare I say a few managers) had a role delivering these results, and I'd like to personally thank the following folks whose passion and determination made this possible.  Thanks for all the hard work!

Paul Hohensee
Tom Rodriguez
Vladimir Kozlov
Brian Doherty
Charlie Hunt
Alejandro Murillo
Xiaobin Liu
Coleen Phillimore
Igor Veresov
Peter Kessler
John Coomes
Tony Printezis
Rob Strout
Dave Cox
Jim Melvin
John Pampuch
Kirill Soshalsky

SPEC Disclosure Statement
SPEC, SPECjbb reg tm of Standard Performance Evaluation Corporation. Sun SPARC Enterprise T5120 results submitted to SPEC.  Other results as of 09/28/07 on www.spec.org.  T5240 results submitted to SPEC for review. 
Other results as of 04/09/2008 on www.spec.org.  Sun SPARC Enterprise T5240 (2 chip, 16 cores, 128 threads) 373,405 SPECjbb2005 bops, 23,338 SPECjbb2005 bops/JVM. IBM p570 (4 chips, 8 cores, 16 threads) SPECjbb2005 bops = 346,742, SPECjbb2005 bops/JVM = 86,686. 
IBM System x3650 (2 chips, 8 cores, 8 threads) SPECjbb2005 bops = 323,172, SPECjbb2005 bops/JVM = 80,793.  HP ProLiant DL360 G5 (2 chips, 8 cores, 8 threads) SPECjbb2005 bops = 301,321, SPECjbb2005 bops/JVM = 75330. Dell PowerEdge 2950 III (2 chips, 8 cores, 8 threads) SPECjbb2005 bops = 305,411, SPECjbb2005 bops/JVM = 76,353
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