JVM run JVM Scores 1 81816 2 83643 3 82037 4 80847 SPECjbb2005 bops = 328343, SPECjbb2005 bops/JVM = 82086

Hardware Hardware Vendor IBM Corporation Vendor URL http://www.ibm.com Model IBM System p 550 (4.2 GHz, 8 core, RHEL) Processor POWER6 MHz 4200 # of Chips 4 # of Cores 8 # of Cores/Chip 2 HW Threading Enabled? yes Procs Avail to Java 16 Memory (MB) 65536 Memory Details 32 x 2GB DDR2 Primary cache 64KBI+64KBD on chip per core Secondary cache 4MB on chip per core Other cache 32MB off chip per chip Filesystem ext3 Disks 1 x 73GB SAS Other hardware

Software Software Vendor IBM Corporation Vendor URL http://www.ibm.com JVM Version J2RE 1.6.0 (32-bit) IBM J9 2.4 Linux (build pxp3260sr1-20080117_01) JVM Command Line numactl --cpunodebind=node_number --localalloc -- -Xlp -Xgcpolicy:gencon -Xgcthreads4 -XlockReservation -Xnoloa -Xms2560m -Xmx2560m -Xmn2048m 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 /java/jre/lib/vm.jar: /java/jre/lib/facilitators.jar: /java/jre/lib/annotation.jar: /java/jre/lib/beans.jar: /java/jre/lib/java.util.jar: /java/jre/lib/jndi.jar: /java/jre/lib/logging.jar: /java/jre/lib/security.jar: /java/jre/lib/sql.jar: /java/jre/lib/ibmorb.jar: /java/jre/lib/ibmorbapi.jar: /java/jre/lib/ibmcfw.jar: /java/jre/lib/rt.jar: /java/jre/lib/charsets.jar: /java/jre/lib/resources.jar: /java/jre/lib/ibmpkcs.jar: /java/jre/lib/ibmcertpathfw.jar: /java/jre/lib/ibmjgssfw.jar: /java/jre/lib/ibmjssefw.jar: /java/jre/lib/ibmsaslfw.jar: /java/jre/lib/ibmjcefw.jar: /java/jre/lib/ibmjgssprovider.jar: /java/jre/lib/ibmjsseprovider2.jar: /java/jre/lib/ibmcertpathprovider.jar: /java/jre/lib/ibmxmlcrypto.jar: /java/jre/lib/management-agent.jar: /java/jre/lib/xml.jar: /java/jre/lib/jlm.jar: /java/jre/lib/javascript.jar: /java/jre/lib/RACF.jar OS Version Red Hat Enterprise Linux Server release 5.1 (2.6.18-53.el5) Other software

Test Information Tested by IBM Corporation SPEC license # 11 Test location Austin TX Test date Jan 23, 2008 H/w available Feb-2008 JVM available Apr-2008 OS available Nov-2007 Other s/w available

AOT Compilation   Tuning Operating system tunings echo 1000 > /proc/sys/vm/nr_hugepages echo 4000000000 > /proc/sys/kernel/shmmax echo 500000 > /proc/sys/kernel/shmall Notes