JVM run JVM Scores 1 75079 2 76084 3 76520 4 75614 SPECjbb2005 bops = 303297, SPECjbb2005 bops/JVM = 75824

Hardware Hardware Vendor Sun Microsystems, Inc. Vendor URL http://www.sun.com Model Sun Fire X4150 Processor Intel Xeon X5460 Quad Core (1333 MHz system bus) MHz 3166 # of Chips 2 # of Cores 8 # of Cores/Chip 4 HW Threading Enabled? No Procs Avail to Java 8 Memory (MB) 16384 Memory Details 8 x 2GB 2Rx4 PC2-5300F FBDIMM Primary cache 32KB(I) + 32KB(D) on chip, per core Secondary cache 12 MB I+D on chip (6 MB shared per 2 cores) Other cache   Filesystem UFS Disks 1 x 146GB SAS, 10K RPM 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_05-p JVM Command Line psrset -e processor set number priocntl -c FX -t 1000 -e java -Xmx3350m -Xms3350m -Xmn3g -Xss96k -XX:+UseParallelOldGC -XX:+AggressiveOpts -XX:ParallelGCThreads=2 -classpath jbb.jar:check.jar spec.jbb.JBBmain -propfile SPECjbb.props -id JVM id JVM Initial Heap Memory (MB) 3350 JVM Maximum Heap Memory (MB) 3350 JVM Address bits 32 JVM CLASSPATH jbb.jar: check.jar JVM BOOTCLASSPATH /export/VMs/jre1.6.0_05-p/lib/resources.jar: /export/VMs/jre1.6.0_05-p/lib/rt.jar: /export/VMs/jre1.6.0_05-p/lib/sunrsasign.jar: /export/VMs/jre1.6.0_05-p/lib/jsse.jar: /export/VMs/jre1.6.0_05-p/lib/jce.jar: /export/VMs/jre1.6.0_05-p/lib/charsets.jar: /export/VMs/jre1.6.0_05-p/classes OS Version Solaris 10 8/07 Other software

Test Information Tested by Sun Microsystems, Inc. SPEC license # 6 Test location Burlington, MA Test date Jan 31, 2008 H/w available Jan-2008 JVM available May-2008 OS available Sep-2007 Other s/w available

AOT Compilation   Tuning Each JVM was placed in the FX priority class with the priocntl command. Each JVM was run in its own processor set containing one core. Notes Disabled 'Hardware Prefetcher' in BIOS Disabled 'Adjacent Sector Prefetch' in BIOS