JVM run JVM Scores 1 27602 2 27854 3 27692 4 28137 5 28099 6 27998 7 27122 8 27446 9 27835 10 27629 11 27652 12 27851 SPECjbb2005 bops = 332917, SPECjbb2005 bops/JVM = 27743

Hardware Hardware Vendor Sun Microsystems, Inc. Vendor URL http://www.sun.com Model Sun Fire E2900 Processor UltraSPARC(TM) IV+ MHz 1950 # of Chips 12 # of Cores 24 # of Cores/Chip 2 HW Threading Enabled? N/A Procs Avail to Java 2 Memory (MB) 98304 Memory Details   Primary cache 64KBI+64KBD Secondary cache 2MB(I+D) Other cache 32MB(I+D) off chip Filesystem UFS Disks 2x 73GB SCSI Other hardware

Software Software Vendor Sun Microsystems, Inc. Vendor URL http://www.sun.com JVM Version Java HotSpot(TM) 32-Bit Server VM on Solaris, version 1.6.0_02 JVM Command Line psrset -e processor set number priocntl -m 20 -p 18 -t 2000 -c FX -e java -server -Xmx3g -Xms3g -Xmn1536m -Xss96k -XX:+UseParallelOldGC -XX:ParallelGCThreads=5 -XX:LargePageSizeInBytes=32m -XX:+AggressiveOpts -classpath jbb.jar:check.jar spec.jbb.JBBmain -propfile SPECjbb.props -id JVM id JVM Initial Heap Memory (MB) 3072 JVM Maximum Heap Memory (MB) 3072 JVM Address bits 32 JVM CLASSPATH jbb.jar: check.jar JVM BOOTCLASSPATH /export/VMs/jdk1.6.0_02/jre/lib/resources.jar: /export/VMs/jdk1.6.0_02/jre/lib/rt.jar: /export/VMs/jdk1.6.0_02/jre/lib/sunrsasign.jar: /export/VMs/jdk1.6.0_02/jre/lib/jsse.jar: /export/VMs/jdk1.6.0_02/jre/lib/jce.jar: /export/VMs/jdk1.6.0_02/jre/lib/charsets.jar: /export/VMs/jdk1.6.0_02/jre/classes OS Version Solaris 10 11/06 Other software

Test Information Tested by Sun Microsystems, Inc. SPEC license # 6 Test location Burlington, Mass. Test date May 5, 2007 H/w available Apr-2007 JVM available Jul-2007 OS available Nov-2006 Other s/w available

AOT Compilation   Tuning Tuning in /etc/system: set lgrp_mem_pset_aware = 1; set lgrp_mem_default_policy=3; Each JVM was run in its own processor set containing two cores (one whole chip). Each JVM was placed in the FX priority class with the priocntl command Notes