Hardware |
Hardware Vendor |
Dell Inc. |
Vendor URL |
http://www.dell.com |
Model |
PowerEdge R910 (Intel Xeon E7-4870, 2.40 GHz) |
Processor |
Intel Xeon E7-4870 2.40 GHz (Intel Turbo Boost Technology up to 2.80 GHz) |
MHz |
2400 |
# of Chips |
2 |
# of Cores |
20 |
# of Cores/Chip |
10 |
HW Threading Enabled? |
Yes |
Procs Avail to Java |
40 |
Memory (MB) |
262144 |
Memory Details |
256 GB (32 x 8 GB 4Rx8 PC3-8500R-7, ECC) |
Primary cache |
32 KB (I) + 32 KB (D) |
Secondary cache |
256 KB (I+D) on chip per core |
Other cache |
30 MB (I+D) L3 on chip per chip |
Filesystem |
NTFS |
Disks |
1 x 500 GB 7200 RPM SAS 6Gb |
Other hardware |
None |
|
Software |
Software Vendor |
Oracle Corporation |
Vendor URL |
http://www.oracle.com |
JVM Version |
Oracle Java HotSpot(TM) 64-Bit Server VM on Windows, version 1.6.0_25 |
JVM Command Line |
start /high /node [0,1] /affinity FFFFF java -server -showversion -Xmx25g -Xms25g -Xmn23g -XX:SurvivorRatio=60 -XX:TargetSurvivorRatio=90 -XX:ParallelGCThreads=20 -XX:AllocatePrefetchDistance=256 -XX:AllocatePrefetchLines=4 -XX:LoopUnrollLimit=45 -XX:InitialTenuringThreshold=12 -XX:MaxTenuringThreshold=15 -XX:InlineSmallCode=3900 -XX:MaxInlineSize=270 -XX:FreqInlineSize=2500 -XX:+AggressiveOpts -XX:+UseLargePages -XX:+UseParallelOldGC -XX:+UseCompressedStrings -XX:-UseAdaptiveSizePolicy |
JVM Initial Heap Memory (MB) |
25600 |
JVM Maximum Heap Memory (MB) |
25600 |
JVM Address bits |
64 |
JVM CLASSPATH |
.\jbb.jar; .\jbb_no_precompile; .\check.jar; .\reporter.jar; . |
JVM BOOTCLASSPATH |
C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\alt-string.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\alt-rt.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\resources.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\rt.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\sunrsasign.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\jsse.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\jce.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\charsets.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\lib\modules\jdk.boot.jar; C:\PerformancePT\JAVA_Oracle\160u25_released\jre6\classes |
OS Version |
Microsoft Windows Server 2008 R2 Enterprise Edition SP1 |
Other software |
None |
|
Test Information |
Tested by |
Dell Inc. |
SPEC license # |
55 |
Test location |
Round Rock, TX |
Test date |
Apr 28, 2011 |
H/w available |
Jul-2011 |
JVM available |
Apr-2011 |
OS available |
Feb-2011 |
Other s/w available |
N/A |
|
Tuning |
Operating system tunings- Using the local security settings console, "Lock pages in memory" was enabled for the user running the benchmark
- Hardware Prefetcher disabled in BIOS
- Adjacent Cache Line Prefetch disabled in BIOS
- Maximum Performance Mode selected in BIOS
- Each JVM instance was affinitized to 1 chip.
- The parameter expected_peak_warehouse was set to 20.
|
Notes |
Command line options are described at: http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html |
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