Hardware Hardware Vendor SGI Vendor URL http://www.sgi.com Model Altix UV 1000 (16 blade) Processor Intel Xeon X7560 (Intel Turbo Boost Technology up to 2.666GHz) MHz 2266 # of Chips 32 # of Cores 256 # of Cores/Chip 8 HW Threading Enabled? Yes Procs Avail to Java 512 Memory (MB) 1048576 Memory Details 4 GB ECC DDR3-1066 DIMMs (DIMM PC3 8500R 0700J00 4GB SNS2RX4) filling all slots. Primary cache 32kBI + 32kBD on chip per core Secondary cache 256kB unified on chip per core Other cache 24MB (I+D) on chip per chip Filesystem ext3 Disks 1 x 146 GB SCSI (classes + OS) Other hardware

Software Software Vendor Oracle Corporation Vendor URL http://www.oracle.com JVM Version Oracle JRockit(R) (build P28.0.0-29-114096-1.6.0_11-20090427-1758-linux-x86_64, compiled mode) JVM Command Line numactl --physcpubind=${y}-${y2},${y3}-${y4} --localalloc -- java -Xms3700m -Xmx3700m -Xns3200m -Xgc:genpar -Xlargepages -XXaggressive -XXgcthreads=4 -XXcompressedRefs -XXlazyunlocking -XXcallprofiling -XXtlasize:min=16k,preferred=1m -cp jbb.jar:check.jar spec.jbb.JBBmain -propfile SPECjbb.props -id $id JVM Initial Heap Memory (MB) 3700 JVM Maximum Heap Memory (MB) 3700 JVM Address bits 64 JVM CLASSPATH jbb.jar: check.jar JVM BOOTCLASSPATH /root/jrockit-jdk1.6.0_11/jre/lib/amd64/jrockit/jrockit1.6.0.jar: /root/jrockit-jdk1.6.0_11/jre/lib/amd64/jrockit/jmapi.jar: /root/jrockit-jdk1.6.0_11/jre/lib/amd64/jrockit/jmxmapi.jar: /root/jrockit-jdk1.6.0_11/jre/lib/amd64/jrockit/rmp.jar: /root/jrockit-jdk1.6.0_11/jre/lib/amd64/jrockit/latency.jar: /root/jrockit-jdk1.6.0_11/jre/lib/resources.jar: /root/jrockit-jdk1.6.0_11/jre/lib/rt.jar: /root/jrockit-jdk1.6.0_11/jre/lib/sunrsasign.jar: /root/jrockit-jdk1.6.0_11/jre/lib/jsse.jar: /root/jrockit-jdk1.6.0_11/jre/lib/jce.jar: /root/jrockit-jdk1.6.0_11/jre/lib/charsets.jar: /root/jrockit-jdk1.6.0_11/jre/classes OS Version SuSE Linux Enterprise Server 11 SP1 (2.6.32.12-0.7.1.1381.0.PTF-default) Other software

Test Information Tested by SGI SPEC license # 4 Test location Chippewa Falls, WI Test date Jun 15, 2010 H/w available Jun-2010 JVM available May-2009 OS available Jun-2010 Other s/w available

AOT Compilation   Tuning Operating system tunings mount -t hugetlbfs nodev /mnt/hugepages echo 237824 > /proc/sys/vm/nr_hugepages Notes Command line options are described at http://download.oracle.com/docs/cd/E13150_01/jrockit_jvm/jrockit/jrdocs/pdf/refman.pdf System configured to use four JVMs per NUMA node (8 cores).

Details of Runs