Hardware |
Hardware Vendor |
Sun Microsystems, Inc. |
Vendor URL |
http://www.sun.com/ |
Model |
Sun Fire E25K |
Processor |
UltraSPARC(TM) IV+ |
MHz |
1950 |
# of Chips |
72 |
# of Cores |
144 |
# of Cores/Chip |
2 |
HW Threading Enabled? |
N/A |
Procs Avail to Java |
144 |
Memory (MB) |
311296 |
Memory Details |
16x2GB and 272x1GB, all 8-way interleave |
Primary cache |
64KBI+64KBD |
Secondary cache |
2MB(I+D) |
Other cache |
32MB(I+D) off chip |
Filesystem |
UFS |
Disks |
Sun StorageTek 6140 |
Other hardware |
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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 java -XX:+AggressiveOpts -Xmx3g -Xms3g -Xmn2g -Xss128k -XX:+UseParallelOldGC -XX:LargePageSizeInBytes=4m -XX:ParallelGCThreads=2 -XX:AllocatePrefetchLines=15 -classpath jbb.jar:check.jar spec.jbb.JBBmain -propfile SPECjbb.props -id JVM number |
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/bmk/ptk/jdk1.6.0_02/jre/lib/resources.jar: /export/bmk/ptk/jdk1.6.0_02/jre/lib/rt.jar: /export/bmk/ptk/jdk1.6.0_02/jre/lib/sunrsasign.jar: /export/bmk/ptk/jdk1.6.0_02/jre/lib/jsse.jar: /export/bmk/ptk/jdk1.6.0_02/jre/lib/jce.jar: /export/bmk/ptk/jdk1.6.0_02/jre/lib/charsets.jar: /export/bmk/ptk/jdk1.6.0_02/jre/classes |
OS Version |
Solaris 10 11/06 |
Other software |
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Test Information |
Tested by |
Sun Microsystems, Inc. |
SPEC license # |
6 |
Test location |
Hillsboro, OR |
Test date |
May 3, 2007 |
H/w available |
Apr-2007 |
JVM available |
Jul-2007 |
OS available |
Nov-2006 |
Other s/w available |
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Tuning |
- /etc/system parameters:
- autoup=345600
- tune_t_fsflushr=345600
- The frequency of file system sync operations.
- kernel_cage_enable=0
- Disable kernel cage.
- 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 command
priocntl -s -c FX -m 20 -p 10 -t 2500 -i pid list of JVM pids . - The operating system and master JVM were located on the system board with the extra memory.
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