JVM Instances |
jvm_Ctr_1(1), jvm_Backend_1(4), jvm_TxInjector_1(4)
|
OS Image Description |
os_1
|
Tuning |
- ulimit -n 655360
- echo 10000 > /proc/sys/kernel/sched_cfs_bandwidth_slice_us
- echo 0 > /proc/sys/kernel/sched_child_runs_first
- echo 16000000 > /proc/sys/kernel/sched_latency_ns
- echo 1000 > /proc/sys/kernel/sched_migration_cost_ns
- echo 28000000 > /proc/sys/kernel/sched_min_granularity_ns
- echo 9 > /proc/sys/kernel/sched_nr_migrate
- echo 100 > /proc/sys/kernel/sched_rr_timeslice_ms
- echo 1000000 > /proc/sys/kernel/sched_rt_period_us
- echo 990000 > /proc/sys/kernel/sched_rt_runtime_us
- echo 0 > /proc/sys/kernel/sched_schedstats
- echo 1 > /proc/sys/kernel/sched_tunable_scaling
- echo 50000000 > /proc/sys/kernel/sched_wakeup_granularity_ns
- echo 3000 > /proc/sys/vm/dirty_expire_centisecs
- echo 500 > /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/kernel/numa_balancing
- echo always > /sys/kernel/mm/transparent_hugepage/dafrag
- echo always > /sys/kernel/mm/transparent_hugepage/enabled
- ulimit -v 800000000
- ulimit -m 800000000
- ulimit -l 800000000
- UserTasksMax=970000
- DefaultTasksMax=970000
|
Notes |
None
|
Parts of Benchmark |
Controller
|
JVM Instance Description |
jvm_1
|
Command Line |
-server -Xms2g -Xmx2g -Xmn1536m -XX:UseAVX=0 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:+UseParallelGC -XX:ParallelGCThreads=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 |
-XX:+UseParallelGC -XX:+UseLargePages -XX:+AlwaysPreTouch -XX:-UseAdaptiveSizePolicy -XX:SurvivorRatio=28 -XX:MaxTenuringThreshold=15 -XX:InlineSmallCode=10k -verbose:gc -XX:UseAVX=0 -XX:-UseCountedLoopSafepoints -XX:LoopUnrollLimit=20 -XX:MaxGCPauseMillis=500 -XX:AdaptiveSizeMajorGCDecayTimeScale=12 -XX:AdaptiveSizeDecrementScaleFactor=2 -server -XX:TargetSurvivorRatio=95 -XX:LargePageSizeInBytes=2m -XX:AllocatePrefetchLines=3 -XX:AllocateInstancePrefetchLines=2 -XX:AllocatePrefetchStepSize=128 -XX:AllocatePrefetchDistance=384 -Xms225g -Xmx225g -Xmn215g -XX:ParallelGCThreads=32 -XX:-PrintGCDetails
|
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 |
-server -Xms2g -Xmx2g -Xmn1536m -XX:UseAVX=0 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:+UseParallelGC -XX:ParallelGCThreads=2
|
Tuning |
numactl used to affinitize each TxInjector JVM to a single CPU memory node, eg:- numactl --cpunodebind=$node --localalloc
|
Notes |
None
|