Supermicro Hyper A+ Server AS -2126HS-TN 621179 SPECjbb2015-MultiJVM max-jOPS
568932 SPECjbb2015-MultiJVM critical-jOPS
Tested by: Supermicro Test Sponsor: Supermicro Test location: San Jose, California Test date: September 10, 2025
SPEC license #: 001176 Hardware Availability: Oct-2024 Software Availability: Jul-2025 Publication: Thu Oct 2 17:43:26 EDT 2025
Benchmark Results Summary
 
Overall Throughput RT curve
Overall SUT (System Under Test) Description
VendorSupermicro
Vendor URLhttps://www.supermicro.com
System SourceSingle Supplier
System DesignationServer Rack
Total Systems1
All SUT Systems IdenticalYES
Total Nodes1
All Nodes IdenticalYES
Nodes Per System1
Total Chips2
Total Cores128
Total Threads256
Total Memory Amount (GB)1536
Total OS Images1
SW EnvironmentNon-virtual
 
Hardware hw_1
NameHyper A+ Server AS -2126HS-TN
VendorSupermicro
Vendor URLhttps://www.supermicro.com
AvailableOct-2024
ModelH14DSH
Form Factor2U
CPU NameAMD EPYC 9575F
CPU Characteristics64 core, 3.3 GHz, 256 MB L3 Cache (Max. Boost Clock up to 5.0 GHz)
Number of Systems1
Nodes Per System1
Chips Per System2
Cores Per System128
Cores Per Chip64
Threads Per System256
Threads Per Core2
Version1.2 01/21/2025
CPU Frequency (MHz)3300
Primary Cache32 KB(I) + 48 KB(D) per core
Secondary Cache1 MB (I+D) per core
Tertiary Cache256 MB (I+D) on chip per chip
Other CacheNone
Disk1 x 500 GB NVMe PCIe Gen4.0
File Systembtrfs
Memory Amount (GB)1536
# and size of DIMM(s)24 x 64 GB
Memory Details64 GB 2Rx4 DDR5 6400 MHz
# and type of Network Interface Cards (NICs)1 x 1 GbE NIC
Power Supply Quantity and Rating (W)2 x 2000w
Other HardwareNone
Cabinet/Housing/EnclosureNone
Shared DescriptionNone
Shared CommentNone
Notes
  • NA: The test sponsor attests, as of date of publication, that CVE-2017-5754 (Meltdown) is mitigated in the system as tested and documented.
  • Yes: The test sponsor attests, as of date of publication, that CVE-2017-5753 (Spectre variant 1) is mitigated in the system as tested and documented.
  • Yes: The test sponsor attests, as of date of publication, that CVE-2017-5715 (Spectre variant 2) is mitigated in the system as tested and documented.
Other Hardware network_1
NameNone
VendorNone
Vendor URLNone
VersionNone
AvailableNone
BitnessNone
NotesNone
Operating System os_1
NameSUSE Linux Enterprise Server 15 SP6
VendorSUSE
Vendor URLhttps://suse.com/
Version6.4.0-150600.23.53-default
AvailableJun-2025
Bitness64
NotesNone
Java Virtual Machine jvm_1
NameOracle Java SE 24.0.2
VendorOracle
Vendor URLhttps://oracle.com/
VersionJava HotSpot 64-bit Server VM, version 24.0.2
AvailableJul-2025
Bitness64
NotesNone
Other Software other_1
NameNone
VendorNone
Vendor URLNone
VersionNone
AvailableNone
BitnessNone
NotesNone
Hardware
OS Images os_Image_1(1)
Hardware Description hw_1
Number of Systems 1
SW Environment non-virtual
Tuning

BIOS Settings:

  • NUMA nodes per socket = NPS4
  • Determinism Control = Manual
  • Determinism Enable = Power
  • xGMI Link Configuration = 4 xGMI Links
  • 4 Link xGMI max speed = 32Gbps
  • TDP Control = Manual
  • TDP = 400
  • Package Power Limit Control = Manual
  • Package Power Limit = 400

Notes None
OS Image os_Image_1
JVM Instances jvm_Ctr_1(1), jvm_Backend_1(8), jvm_TxInjector_1(8)
OS Image Description os_1
Tuning

  • cpupower -c all frequency-set -g performance
  • tuned-adm profile throughput-performance
  • ulimit -n 1024000

  • echo 950000 > /proc/sys/kernel/sched_rt_runtime_us
  • echo 150000000 > /proc/sys/kernel/sched_latency_ns
  • echo 80000 > /proc/sys/kernel/sched_migration_cost_ns
  • echo 350000 > /proc/sys/kernel/sched_min_granularity_ns
  • echo 300000 > /proc/sys/kernel/sched_wakeup_granularity_ns
  • echo 32 > /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/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

Notes None
JVM Instance jvm_Ctr_1
Parts of Benchmark Controller
JVM Instance Description jvm_1
Command Line

-Xms2g -Xmx2g -Xmn1536m -XX:+UseParallelGC -XX:ParallelGCThreads=1 -XX:CICompilerCount=4

Tuning

Used numactl to interleave memory on all CPUs

  • numactl --interleave=all
Notes None
JVM Instance jvm_Backend_1
Parts of Benchmark Backend
JVM Instance Description jvm_1
Command Line

-Xms127g -Xmx127g -Xmn125g -server -XX:MetaspaceSize=256m -XX:AllocatePrefetchInstr=2 -XX:LargePageSizeInBytes=2m -XX:-UsePerfData -XX:-UseAdaptiveSizePolicy -XX:+AlwaysPreTouch -XX:+UseLargePages -XX:+UseParallelGC -XX:SurvivorRatio=120 -XX:TargetSurvivorRatio=90 -XX:ParallelGCThreads=32 -XX:MaxTenuringThreshold=15 -XX:InitialCodeCacheSize=25m -XX:InlineSmallCode=10k -XX:MaxGCPauseMillis=100 -XX:+UseCompressedOops -XX:ObjectAlignmentInBytes=32 -XX:+UseTransparentHugePages -XX:TLABAllocationWeight=55 -XX:ThreadStackSize=512 -XX:CompileThresholdScaling=120

Tuning

Used numactl to affinitize one Backend JVM to one NUMA node

  • Group1: numactl --cpunodebind=0 --localalloc
  • Group2: numactl --cpunodebind=1 --localalloc
  • Group3: numactl --cpunodebind=2 --localalloc
  • Group4: numactl --cpunodebind=3 --localalloc
  • Group5: numactl --cpunodebind=4 --localalloc
  • Group6: numactl --cpunodebind=5 --localalloc
  • Group7: numactl --cpunodebind=6 --localalloc
  • Group8: numactl --cpunodebind=7 --localalloc
Notes None
JVM Instance jvm_TxInjector_1
Parts of Benchmark TxInjector
JVM Instance Description jvm_1
Command Line

-Xms2g -Xmx2g -Xmn1536m -XX:+UseParallelGC -XX:ParallelGCThreads=1 -XX:CICompilerCount=4

Tuning

Used numactl to affinitize one Transaction Injector JVM to one NUMA node

  • Group1: numactl --cpunodebind=0 --localalloc
  • Group2: numactl --cpunodebind=1 --localalloc
  • Group3: numactl --cpunodebind=2 --localalloc
  • Group4: numactl --cpunodebind=3 --localalloc
  • Group5: numactl --cpunodebind=4 --localalloc
  • Group6: numactl --cpunodebind=5 --localalloc
  • Group7: numactl --cpunodebind=6 --localalloc
  • Group8: numactl --cpunodebind=7 --localalloc
Notes None
max-jOPS = jOPS passed before the First Failure
Pass/Fail Pass Pass Fail Fail Fail
jOPS 613006 621179 629353 637526 645699
critical-jOPS = Geomean ( jOPS @ 10000; 25000; 50000; 75000; 100000; SLAs )
Response time percentile is 99-th
SLA (us) 10000 25000 50000 75000 100000 Geomean
jOPS 478144 559878 592572 608919 617092 568932
  Percentile
  10-th 50-th 90-th 95-th 99-th 100-th
500us 98081 / 81734 8173 / 16347 - / 8173 - / 8173 - / 8173 - / 8173
1000us 604832 / 613006 40867 / 49040 16347 / 24520 8173 / 16347 8173 / 16347 - / 8173
5000us 621179 / - 621179 / - 604832 / 613006 572139 / 539445 408670 / 416844 8173 / 16347
10000us 621179 / - 621179 / - 621179 / - 604832 / 613006 474058 / 482231 32694 / 16347
25000us 621179 / - 621179 / - 621179 / - 613006 / 621179 555792 / 563965 32694 / 16347
50000us 621179 / - 621179 / - 621179 / - 621179 / - 588486 / 596659 204335 / 40867
75000us 621179 / - 621179 / - 621179 / - 621179 / - 604832 / 613006 375977 / 49040
100000us 621179 / - 621179 / - 621179 / - 621179 / - 613006 / 621179 425017 / 367803
200000us 621179 / - 621179 / - 621179 / - 621179 / - 621179 / - 572139 / 563965
500000us 621179 / - 621179 / - 621179 / - 621179 / - 621179 / - 613006 / 621179
1000000us 621179 / - 621179 / - 621179 / - 621179 / - 621179 / - 621179 / -
Probes jOPS / Total jOPS
Request Mix Accuracy
Note
(Actual % in the Mix - Expected % in the Mix) must be within:
'Main Tx' limit of +/-5.0% for the requests whose expected % in the mix is >= 10.0%
'Minor Tx' limit of +/-1.0% for the requests whose expected % in the mix is < 10.0%
There were no non-critical failures in Response Time curve building
Delay between status pings
IR/PR Accuracy
This section lists properties only set by user
Property Name Default Controller Group1.Backend.beJVM Group1.TxInjector.txiJVM1 Group2.Backend.beJVM Group2.TxInjector.txiJVM1 Group3.Backend.beJVM Group3.TxInjector.txiJVM1 Group4.Backend.beJVM Group4.TxInjector.txiJVM1 Group5.Backend.beJVM Group5.TxInjector.txiJVM1 Group6.Backend.beJVM Group6.TxInjector.txiJVM1 Group7.Backend.beJVM Group7.TxInjector.txiJVM1 Group8.Backend.beJVM Group8.TxInjector.txiJVM1
specjbb.comm.connect.client.pool.size 256 256 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120
specjbb.comm.connect.selector.runner.count 0 4
specjbb.comm.connect.worker.pool.max 256 256 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120
specjbb.comm.connect.worker.pool.min 1 1 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24
specjbb.controller.handshake.period 5000 20000
specjbb.controller.handshake.timeout 600000 900000
specjbb.forkjoin.workers 256 {Tier1=110, Tier2=1, Tier3=8}
specjbb.group.count 1 8
specjbb.heartbeat.period 10000 2000
specjbb.heartbeat.threshold 100000 9000000
specjbb.mapreducer.pool.size 256 4
specjbb.txi.pergroup.count 1 1
View table in csv format
 
Level: COMPLIANCE
Check Agent Result
Check properties on compliance All PASSED
 
Level: CORRECTNESS
Check Agent Result
Compare SM and HQ Inventory All PASSED
High-bound (max attempted) is 817341 IR
High-bound (settled) is 681251 IR