| | Hardware | 
|---|
 | Hardware Vendor | IBM Corporation |  | Vendor URL | http://www.ibm.com |  | Model | IBM Power 780 (3.86 GHz, 64 core) |  | Processor | POWER7 (Intelligent Energy Optimization up to 3.94 GHz) |  | MHz | 3860 |  | # of Chips | 8 |  | # of Cores | 64 |  | # of Cores/Chip | 8 |  | HW Threading Enabled? | Yes |  | Procs Avail to Java | 256 |  | Memory (MB) | 524288 |  | Memory Details | 64 x 8GB DDR3 1066 MHz |  | Primary cache | 32 KB I + 32 KB D on chip per core |  | Secondary cache | 256KB I+D on chip per core |  | Other cache | 4MB I+D on chip per core |  | Filesystem | AIX/JFS2 |  | Disks | 1 x 146GB SAS 15K RPM |  | Other hardware |  | 
 | | Software | 
|---|
 | Software Vendor | IBM Corporation |  | Vendor URL | http://www.ibm.com |  | JVM Version | JRE 1.6.0 (32-bit) IBM J9 2.4 AIX [build jvmap3260sr7-20091214_49398(SR7)] |  | JVM Command Line | execrset -c processor_set_number -e java -Xlp -Xgcpolicy:gencon -Xms2560m -Xmx2560m -Xmn2048m -Xaggressive -XtlhPrefetch -XlockReservation -Xgcthreads4 -Xnoloa spec.jbb.JBBmain -propfile SPECjbb.props |  | JVM Initial Heap Memory (MB) | 2560 |  | JVM Maximum Heap Memory (MB) | 2560 |  | JVM Address bits | 32 |  | JVM CLASSPATH | jbb.jar: check.jar
 |  | JVM BOOTCLASSPATH | /spec/sr7/jre/lib/vm.jar: /spec/sr7/jre/lib/annotation.jar:
 /spec/sr7/jre/lib/beans.jar:
 /spec/sr7/jre/lib/java.util.jar:
 /spec/sr7/jre/lib/jndi.jar:
 /spec/sr7/jre/lib/logging.jar:
 /spec/sr7/jre/lib/security.jar:
 /spec/sr7/jre/lib/sql.jar:
 /spec/sr7/jre/lib/ibmorb.jar:
 /spec/sr7/jre/lib/ibmorbapi.jar:
 /spec/sr7/jre/lib/ibmcfw.jar:
 /spec/sr7/jre/lib/rt.jar:
 /spec/sr7/jre/lib/charsets.jar:
 /spec/sr7/jre/lib/resources.jar:
 /spec/sr7/jre/lib/ibmpkcs.jar:
 /spec/sr7/jre/lib/ibmcertpathfw.jar:
 /spec/sr7/jre/lib/ibmjgssfw.jar:
 /spec/sr7/jre/lib/ibmjssefw.jar:
 /spec/sr7/jre/lib/ibmsaslfw.jar:
 /spec/sr7/jre/lib/ibmjcefw.jar:
 /spec/sr7/jre/lib/ibmjgssprovider.jar:
 /spec/sr7/jre/lib/ibmjsseprovider2.jar:
 /spec/sr7/jre/lib/ibmcertpathprovider.jar:
 /spec/sr7/jre/lib/ibmxmlcrypto.jar:
 /spec/sr7/jre/lib/management-agent.jar:
 /spec/sr7/jre/lib/xml.jar:
 /spec/sr7/jre/lib/jlm.jar:
 /spec/sr7/jre/lib/javascript.jar
 |  | OS Version | IBM AIX V6.1 with the 6100-04 Technology Level and Service Pack 3 |  | Other software |  | 
 | 
| | Test Information | 
|---|
 | Tested by | IBM Corporation |  | SPEC license # | 11 |  | Test location | Austin, TX |  | Test date | Mar 28, 2010 |  | H/w available | Mar-2010 |  | JVM available | Dec-2009 |  | OS available | Mar-2010 |  | Other s/w available |  | 
 | | Tuning | 
|---|
 | Operating system tunings vmo -o lgpg_regions=24576 -o lgpg_size=16777216 -o v_pinshm=1dscrctl -n -s 1MEMORY_AFFINITY=MCM
 | 
 | Notes | 
|---|
 | 64 JVMs were run in processor sets each containing 1 coreIBM Systems Director is required to set the Intelligent Optimization HW mode
 | 
 |