OS Images |
os_Image_1(1)
|
Hardware Description |
hw_1
|
Number of Systems |
1
|
SW Environment |
Non-virtual
|
Tuning |
- Dram Refresh Delay - Performance
- DIMM Self Healing (Post Package Repair) on Uncorrectable Memory Error - Disabled
- Correctable Error Logging - Disabled
- Virtualization Technology - Disabled
- L2 Stream HW Prefetcher - Disabled
- NUMA Nodes Per Socket - 4
- L3 cache as NUMA Domain- Disabled
- TDP Control- Manual
- Customized cTDP - 280
- Customized PPT - 280
- System Profile - Custom
- CPU Power Management - Maximum Performance
- C-States - Disabled
- Determinism Control- Manual
- Determinism Slider - Power Determinism
|
Notes |
None
|
|
JVM Instances |
jvm_Backend_1(4)
|
OS Image Description |
os_1
|
Tuning |
- echo 960000 > /proc/sys/kernel/sched_rt_runtime_us
- echo 800000000 > /proc/sys/kernel/sched_latency_ns
- echo 40000 > /proc/sys/kernel/sched_migration_cost_ns
- echo 410000000 > /proc/sys/kernel/sched_min_granularity_ns
- echo 2000000 > /proc/sys/kernel/sched_wakeup_granularity_ns
- echo 9000 > /proc/sys/kernel/sched_nr_migrate
- echo 10000 > /proc/sys/vm/dirty_expire_centisecs
- echo 1500 > /proc/sys/vm/dirty_writeback_centisecs
- echo 40 > /proc/sys/vm/dirty_ratio
- echo 10 > /proc/sys/vm/dirty_background_ratio
- echo 10 > /proc/sys/vm/swappiness
- echo 0 > /proc/sys/vm/numa_stat
- echo 0 > /proc/sys/kernel/numa_balancing
- echo always > /sys/kernel/mm/transparent_hugepage/enabled
- echo always > /sys/kernel/mm/transparent_hugepage/defrag
|
Notes |
None
|
Parts of Benchmark |
Backend
|
JVM Instance Description |
jvm_1
|
Command Line |
-Xms31g -Xmx31g -Xmn29g -XX:AllocatePrefetchInstr=2 -XX:+UseParallelGC -XX:ParallelGCThreads=8 -XX:LargePageSizeInBytes=2m -XX:-UseAdaptiveSizePolicy -XX:+AlwaysPreTouch -XX:+UseLargePages -XX:SurvivorRatio=12 -XX:TargetSurvivorRatio=95 -XX:MaxTenuringThreshold=15 -XX:InlineSmallCode=11k -XX:MaxGCPauseMillis=100 -XX:LoopUnrollLimit=200 -XX:+UseTransparentHugePages -XX:TLABAllocationWeight=2 -XX:ThreadStackSize=140 -XX:CompileThresholdScaling=120 -XX:CICompilerCount=4 -XX:AutoBoxCacheMax=32 -XX:OnStackReplacePercentage=100 -XX:TLABSize=1m -XX:MinTLABSize=1m -XX:-ResizeTLAB -XX:TLABWasteTargetPercent=1 -XX:TLABWasteIncrement=1 -XX:YoungPLABSize=1m -XX:OldPLABSize=1m
|
Tuning |
Used numactl to affinitize each Backend JVM to 4 Cores / 8 Threads: - Group 1: numactl --physcpubind=0-3,16-19 --localalloc
- Group 2: numactl --physcpubind=4-7,20-23 --localalloc
- Group 3: numactl --physcpubind=8-11,24-27 --localalloc
- Group 4: numactl --physcpubind=12-15,28-31 --localalloc
|
Notes |
None
|
|