JVM Instances |
jvm_Ctr_1(1), jvm_Backend_1(16), jvm_TxInjector_1(16)
|
OS Image Description |
os_1
|
Tuning |
- echo 15000000 > /proc/sys/kernel/sched_wakeup_granularity_ns
- echo 80000000 > /proc/sys/kernel/sched_min_granularity_ns
- echo 1000 > /proc/sys/kernel/sched_migration_cost_ns
- echo 16 > /proc/sys/kernel/sched_nr_migrate
- echo 950000 > /proc/sys/kernel/sched_rt_runtime_us
- echo 10000000 > /proc/sys/kernel/sched_latency_ns
- 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 always > /sys/kernel/mm/transparent_hugepage/defrag
- echo always > /sys/kernel/mm/transparent_hugepage/enabled
|
Notes |
None
|
Parts of Benchmark |
Controller
|
JVM Instance Description |
jvm_1
|
Command Line |
-Xmn1536m -Xms2g -Xmx2g -XX:+UseParallelOldGC -XX:ParallelGCThreads=1 -XX:CICompilerCount=2
|
Tuning |
numactl used to interleave the controller amongst all available nodes, eg:
|
Notes |
None
|
Parts of Benchmark |
Backend
|
JVM Instance Description |
jvm_1
|
Command Line |
-Xms30g -Xmx30g -Xmn27g -XX:AllocatePrefetchInstr=2 -XX:+UseParallelOldGC -XX:ParallelGCThreads=16 -XX:LargePageSizeInBytes=2m -XX:-UseAdaptiveSizePolicy -XX:+AlwaysPreTouch -XX:-UseBiasedLocking -XX:+UseLargePages -XX:SurvivorRatio=30 -XX:TargetSurvivorRatio=99 -XX:MaxTenuringThreshold=15 -XX:InlineSmallCode=3k -XX:MaxInlineSize=900 -XX:FreqInlineSize=900 -XX:LoopUnrollLimit=30 -XX:+UseTransparentHugePages -XX:AutoBoxCacheMax=5000
|
Tuning |
numactl used to affinitize each Backend JVM to two CPU nodes and local memory, eg:- numactl --cpunodebind=$node,$node+1 --localalloc
|
Notes |
None
|
Parts of Benchmark |
TxInjector
|
JVM Instance Description |
jvm_1
|
Command Line |
-Xmn1536m -Xms2g -Xmx2g -XX:+UseParallelOldGC -XX:ParallelGCThreads=3 -XX:CICompilerCount=2
|
Tuning |
numactl used to affinitize each TxInjector JVM to a single CPU memory node, eg:- numactl --cpunodebind=$node --localalloc
|
Notes |
None
|