JVM Instances |
jvm_Ctr_1(1), jvm_Backend_1(8), jvm_TxInjector_1(8)
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OS Image Description |
os_1
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Tuning |
- ulimit -n 131072
- cpupower frequency-set -g performance
- echo 10000 > /proc/sys/kernel/sched_cfs_bandwidth_slice_us
- echo 0 > /proc/sys/kernel/sched_child_runs_first
- echo 16000000 > /sys/kernel/debug/sched/latency_ns
- echo 1000 > /sys/kernel/debug/sched/migration_cost_ns
- echo 28000000 > /sys/kernel/debug/sched/min_granularity_ns
- echo 9 > /sys/kernel/debug/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 > /sys/kernel/debug/sched/tunable_scaling
- echo 50000000 > /sys/kernel/debug/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/defrag
- echo always > /sys/kernel/mm/transparent_hugepage/enabled
|
Notes |
None
|
Parts of Benchmark |
Controller
|
JVM Instance Description |
jvm_1
|
Command Line |
-Xms2g -Xmx2g -Xmn1536m -XX:+UseLargePages -XX:LargePageSizeInBytes=1G -XX:+UseParallelGC -XX:ParallelGCThreads=2
|
Tuning |
None
|
Notes |
None
|
Parts of Benchmark |
Backend
|
JVM Instance Description |
jvm_1
|
Command Line |
-Xms29g -Xmx29g -Xmn27g -XX:+UseParallelGC -XX:+UseTransparentHugePages -XX:+AlwaysPreTouch -XX:-UseAdaptiveSizePolicy -XX:SurvivorRatio=28 -XX:MaxTenuringThreshold=15 -XX:InlineSmallCode=10k -verbose:gc -XX:-UseCountedLoopSafepoints -XX:LoopUnrollLimit=20 -XX:MaxGCPauseMillis=500 -XX:TargetSurvivorRatio=95 -XX:LargePageSizeInBytes=1G -XX:AdaptiveSizeMajorGCDecayTimeScale=12 -XX:AdaptiveSizeDecrementScaleFactor=2 -server -XX:AllocatePrefetchLines=3 -XX:AllocateInstancePrefetchLines=2 -XX:AllocatePrefetchStepSize=128 -XX:AllocatePrefetchDistance=384 -XX:ParallelGCThreads=36
|
Tuning |
numactl used to affinitize each Backend JVM to 36 cores, eg:- numactl --physcpubind=0-35 --localalloc
- numactl --physcpubind=36-71 --localalloc
- numactl --physcpubind=72-107 --localalloc
- numactl --physcpubind=107-143 --localalloc
- numactl --physcpubind=144-179 --localalloc
- numactl --physcpubind=180-215 --localalloc
- numactl --physcpubind=216-251 --localalloc
- numactl --physcpubind=252-287 --localalloc
|
Notes |
None
|
Parts of Benchmark |
TxInjector
|
JVM Instance Description |
jvm_1
|
Command Line |
-Xms2g -Xmx2g -Xmn1536m -XX:+UseLargePages -XX:LargePageSizeInBytes=1G -XX:+UseParallelGC -XX:ParallelGCThreads=2
|
Tuning |
numactl used to affinitize each TxInjector JVM to 36 cores, eg:- numactl --physcpubind=0-35 --localalloc
- numactl --physcpubind=36-71 --localalloc
- numactl --physcpubind=72-107 --localalloc
- numactl --physcpubind=107-143 --localalloc
- numactl --physcpubind=144-179 --localalloc
- numactl --physcpubind=180-215 --localalloc
- numactl --physcpubind=216-251 --localalloc
- numactl --physcpubind=252-287 --localalloc
|
Notes |
None
|