|
| JVM Instances |
jvm_Ctr_1(1), jvm_Backend_1(4), jvm_TxInjector_1(4)
|
| OS Image Description |
os_1
|
| Tuning |
OS tuning: - ppc64_cpu --dscr=1
- ulimit -n 800000
- ulimit -l unlimited
- ulimiit -s unlimited
- echo 155000 > /proc/sys/vm/nr_hugepages
|
| Notes |
DSCR is the Data Stream Control Register which controls the degree of aggressiveness of HW memory prefetching. The setting of 1 disables HW memory prefetching.
|
|
| Parts of Benchmark |
Controller
|
| JVM Instance Description |
jvm_1
|
| Command Line |
-Xms3g -Xmx3g -Xgcthreads8 -Xcompressedrefs -XtlhPrefetch -Xtrace:none
|
| Tuning |
None
|
| Notes |
None
|
|
| Parts of Benchmark |
Backend
|
| JVM Instance Description |
jvm_1
|
| Command Line |
-Xlp -Xms204800m -Xmx204800m -Xmn102400m -Xgcthreads70 -XX:MaxDirectMemorySize=256m -Xgc:scvTenureAge=2,scvNoAdaptiveTenure -Xnocompressedrefs -XtlhPrefetch -Dcom.ibm.crypto.provider.doAESInHardware=true -Dcom.ibm.enableClassCaching=true -Xconcurrentlevel0 -Xaggressive -Xcodecache32M -Xtrace:none -Xloaminimum0.05
|
| Tuning |
"numactl --physcpubind --membind" used to affinitize each Backend JVM to a single chip and its local memory, e.g., - numactl --physcpubind=0-79 --membind=0 for the first Backend JVM
|
| Notes |
None
|
|
| Parts of Benchmark |
TxInjector
|
| JVM Instance Description |
jvm_1
|
| Command Line |
-Xlp -Xms6g -Xmx6g -Xmn3g -Xgcthreads8 -Xgc:scvTenureAge=2,scvNoAdaptiveTenure -Xnocompressedrefs -Dcom.ibm.crypto.provider.doAESInHardware=true -XtlhPrefetch -Dcom.ibm.enableClassCaching=true -Xconcurrentlevel0 -Xaggressive -Xtrace:none
|
| Tuning |
"numactl --physcpubind --membind" used to affinitize each TxInjector JVM to the first core of each chip and its local memory, e.g., - numactl --physcpubind=0-7 --membind=0 for the first Transaction Injector JVM
|
| Notes |
None
|
