JVM run JVM Scores 1 27540 2 27095 3 27711 4 27706 5 27555 6 27872 7 27779 8 27783 9 27588 10 27868 11 27256 12 27570 13 27474 14 27011 15 26782 16 27617 SPECjbb2005 bops = 440207, SPECjbb2005 bops/JVM = 27513

Hardware Hardware Vendor Sun Microsystems, Inc. Vendor URL http://www.sun.com Model Sun SPARC Enterprise M8000 Processor SPARC64 VI MHz 2400 # of Chips 16 # of Cores 32 # of Cores/Chip 2 HW Threading Enabled? No Procs Avail to Java 32 Memory (MB) 131072 Memory Details 128 x 1GB DIMMs Primary cache 128KBI+128KBD on chip per core Secondary cache 6MB(I+D) on chip per chip Other cache   Filesystem UFS Disks 1 x 72GB SAS (classes & OS) Other hardware

Software Software Vendor Sun Microsystems, Inc. Vendor URL http://java.sun.com JVM Version Java HotSpot(TM) Server VM on Solaris, version 1.6.0_02 JVM Command Line psrset -e processor set number java -server -Xms3680m -Xmx3680m -Xmn2g -Xss128k -XX:+UseParallelOldGC -XX:+AggressiveOpts -XX:+UseBiasedLocking -XX:LargePageSizeInBytes=32m -XX:ParallelGCThreads=2 -XX:AllocatePrefetchLines=28 -verbose:gc -cp jbb.jar:check.jar -profile SPECjbb.props -id JVM-number JVM Initial Heap Memory (MB) 3680 JVM Maximum Heap Memory (MB) 3680 JVM Address bits 32 JVM CLASSPATH jbb.jar: check.jar JVM BOOTCLASSPATH /export/specjbb/jdk1.6.0_02/jre/lib/resources.jar: /export/specjbb/jdk1.6.0_02/jre/lib/rt.jar: /export/specjbb/jdk1.6.0_02/jre/lib/sunrsasign.jar: /export/specjbb/jdk1.6.0_02/jre/lib/jsse.jar: /export/specjbb/jdk1.6.0_02/jre/lib/jce.jar: /export/specjbb/jdk1.6.0_02/jre/lib/charsets.jar: /export/specjbb/jdk1.6.0_02/jre/classes OS Version Solaris 10 11/06 (64-bit) Other software

Test Information Tested by Sun Microsystems SPEC license # 6 Test location Kawasaki-shi,Japan Test date Apr 6, 2007 H/w available Apr-2007 JVM available Jul-2007 OS available Apr-2006 Other s/w available

AOT Compilation   Tuning /etc/system parameters maxphys = 4194304 Defines the maximum size of I/O requests, in bytes. maxpgio = 1024 Defines the maximum number of page I/O requests that can be queued by the paging system. tune_t_fsflushr = 1 Controls how many seconds elapse between runs of the page flush daemon, fsflush. autoup = 60 Causes pages older than the listed number of seconds to be written by fsflush. bufhwm = 3000 Memory byte limit for caching I/O buffers segmap_percent = 1 Set maximum percent memory for file system cache Each JVM was run in its own processor set containing two cores (one whole chip). Notes Command line options are described at http://java.sun.com/docs/performance. This result was measured on the Fujitsu SPARC Enterprise M8000. The Fujitsu SPARC Enterprise M8000 and the Sun SPARC Enterprise M8000 are electrically equivalent.