| 
Hardware |  
| Hardware Vendor | 
IBM Corporation |  
| Vendor URL | 
http://www.ibm.com |  
| Model | 
IBM PowerLinux 7R4 (4.0 GHz, 32 core, RHEL) |  
| Processor | 
POWER7+ (Intelligent Energy Optimization enabled, up to 4431 MHz) |  
| MHz | 
4060 |  
| # of Chips | 
8 |  
| # of Cores | 
32 |  
| # of Cores/Chip | 
4 |  
| HW Threading Enabled? | 
yes |  
| Procs Avail to Java | 
128 |  
| Memory (MB) | 
262144 |  
| Memory Details | 
64 x 4 GB DDR3 1066 MHz |  
| Primary cache | 
32 KB I + 32 KB D on chip per core |  
| Secondary cache | 
256 KB I+D on chip per core |  
| Other cache | 
10 MB I+D on chip per core |  
| Filesystem | 
ext4 |  
| Disks | 
300 GB SAS SFF 15K RPM |  
| Other hardware | 
None |  
 
 | 
| 
Software |  
| Software Vendor | 
IBM Corporation |  
| Vendor URL | 
http://www.ibm.com |  
| JVM Version | 
JRE 1.7.0 (32-bit) IBM J9 2.6 Linux (build pxp3270sr3-20121025_01(SR3)) |  
| JVM Command Line | 
taskset -c [0-3,4-7,...,124-127] -- -Xlp -Xaggressive -Xgcpolicy:gencon -Xgcthreads4 -XlockReservation -Xnoloa -Xms2560m -Xmx2560m -Xmn2048m -XtlhPrefetch 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 | 
/autobench/sources/ibm-java-ppc-70/jre/lib/aggressive.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ppc/default/jclSC170/vm.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/se-service.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/math.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/jlm.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmorb.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmorbapi.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmcfw.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmpkcs.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmcertpathfw.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmjgssfw.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmjssefw.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmsaslfw.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmjcefw.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmjgssprovider.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmjsseprovider2.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/ibmcertpathprovider.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/xmldsigfw.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/xml.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/charsets.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/resources.jar: /autobench/sources/ibm-java-ppc-70/jre/lib/rt.jar |  
| OS Version | 
Red Hat Enterprise Linux Server release 6.4 (2.6.32-358.6.1.el6.ppc64) |  
| Other software | 
  |  
 
 | 
| 
Test Information |  
| Tested by | 
IBM Corporation |  
| SPEC license # | 
11 |  
| Test location | 
Austin, TX |  
| Test date | 
May 22, 2013 |  
| H/w available | 
Aug-2013 |  
| JVM available | 
Nov-2012 |  
| OS available | 
Feb-2013 |  
| Other s/w available | 
  |  
 
 | 
| 
Tuning |  
Operating system tunings - echo 6000 > /proc/sys/vm/nr_hugepages
 - echo 100663296000 > /proc/sys/kernel/shmmax
 - echo 1536000 > /proc/sys/kernel/shmall
 - ppc64_cpu --dscr=1
   Platform tunings - The "Dynamic Power Saver - Favor Performance" mode was enabled on "IBM Advanced System Management" 
 
  |  
 
| 
Notes |  
- 32 JVMs were run in processor sets each containing 1 core
 
  |  
 
 |