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JVM Instances |
jvm_Backend_1(4)
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OS Image Description |
os_1
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Tuning |
- cpupower -c all frequency-set -g performance
- tuned-adm profile throughput-performance
- echo 950000 > /proc/sys/kernel/sched_rt_runtime_us
- echo 100000000 > /proc/sys/kernel/sched_latency_ns
- echo 80000 > /proc/sys/kernel/sched_migration_cost_ns
- echo 600000 > /proc/sys/kernel/sched_min_granularity_ns
- echo 100000 > /proc/sys/kernel/sched_wakeup_granularity_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 0 > /proc/sys/kernel/numa_balancing
- echo 0 > /proc/sys/vm/numa_stat
- echo always > /sys/kernel/mm/transparent_hugepage/enabled
- echo always > /sys/kernel/mm/transparent_hugepage/defrag
- ulimit -n 1024000
- UserTasksMax=970000
- DefaultTasksMax=970000
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Notes |
None
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Parts of Benchmark |
Backend
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JVM Instance Description |
jvm_1
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Command Line |
-Xms122g -Xmx122g -Xmn119g -server -XX:MetaspaceSize=256m -XX:AllocatePrefetchInstr=2 -XX:LargePageSizeInBytes=2m -XX:-UsePerfData -XX:-UseAdaptiveSizePolicy -XX:+AlwaysPreTouch -XX:+UseLargePages -XX:+UseParallelGC -XX:SurvivorRatio=90 -XX:TargetSurvivorRatio=99 -XX:ParallelGCThreads=32 -XX:MaxTenuringThreshold=15 -XX:InitialCodeCacheSize=25m -XX:InlineSmallCode=10k -XX:MaxGCPauseMillis=200 -XX:+UseCompressedOops -XX:ObjectAlignmentInBytes=32 -XX:+UseTransparentHugePages -XX:CompileThresholdScaling=15
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Tuning |
None
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Notes |
Used numactl to affinitize each Backend JVM to 16 Core / 32 Threads in BH12SSi-M25 SuT - Group1:numactl --physcpubind=0-15,64-79 --localalloc
- Group2:numactl --physcpubind=16-31,80-95 --localalloc
- Group3:numactl --physcpubind=32-47,96-111 --localalloc
- Group4:numactl --physcpubind=48-63,112-127 --localalloc
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