SPECjbb2015 Report for jbb2015-20251209-01661 : 524563 max-jOPS ; 382578 critical-jOPS

SUT Description

Hardware hw_1
Name	KR587S4
Vendor	KTNF
Vendor URL	http://www.KTNF.co.kr/
Available	Jul-2025
Model	KR587S4
Form Factor	2U
CPU Name	Intel Xeon 6787P
CPU Characteristics	86 Core, 2.0 GHz, 336 MB L3 Cache (Turbo Boost Technology up to 3.80 GHz)
Number of Systems	1
Nodes Per System	1
Chips Per System	2
Cores Per System	172
Cores Per Chip	86
Threads Per System	344
Threads Per Core	2
Version	0601
CPU Frequency (MHz)	2000
Primary Cache	64 KB(I) + 48 KB(D) per core
Secondary Cache	2 MB (I+D) per core
Tertiary Cache	336 MB (I+D) per chip
Other Cache	None
Disk	1 x 2TB NVMe SSD
File System	xfs
Memory Amount (GB)	1024
# and size of DIMM(s)	16 x 64 GB
Memory Details	64GB 2Rx4 PC5-51200R
# and type of Network Interface Cards (NICs)	3 x 10 Gbit NICs
Power Supply Quantity and Rating (W)	2 x 1600
Other Hardware	None
Cabinet/Housing/Enclosure	None
Shared Description	None
Shared Comment	None
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
Name	None
Vendor	None
Vendor URL	None
Version	None
Available	None
Bitness	None
Notes	None

Operating System os_1
Name	Red Hat Enterprise Linux 9.6
Vendor	RedHat
Vendor URL	https://www.redhat.com/
Version	5.14.0-570.12.1.el9_6.x86_64
Available	May-2025
Bitness	64
Notes	None
Java Virtual Machine jvm_1
Name	Oracle Java SE 21.0.9
Vendor	Oracle
Vendor URL	http://www.oracle.com/
Version	Java HotSpot 64-bit Server VM, version 21.0.9
Available	Oct-2025
Bitness	64
Notes	note
Other Software other_1
Name	None
Vendor	None
Vendor URL	None
Version	None
Available	None
Bitness	None
Notes	None

Topology

SUT
- Hardware config_1
  - OS Image os_Image_1
    - JVM jvm_Ctr_1 : Controller
    - JVM jvm_Backend_1 : Backend
    - JVM jvm_TxInjector_1 : TxInjector

SUT config_1 Configuration

Hardware
OS Images	os_Image_1(1)
Hardware Description	hw_1
Number of Systems	1
SW Environment	non-virtual
Tuning	BIOS Tuning SNC=Enabled Page Policy = Adaptive Latency Optimized Mode = Enabled Patrol Scrub=Disabled Power Performance Tuning=BIOS Controls EPB ENERGY_PERF_BIAS_CFG mode=Performance
Notes	notes

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	ulimit -n 131072 echo 10000 > /proc/sys/kernel/sched_cfs_bandwidth_slice_us echo 0 > /proc/sys/kernel/sched_child_runs_first 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 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 echo 50000000 > /sys/kernel/debug/sched/wakeup_granularity_ns echo 1 > /sys/kernel/debug/sched/tunable_scaling echo 9 > /sys/kernel/debug/sched/nr_migrate echo 16000000 > /sys/kernel/debug/sched/latency_ns echo 28000000 > /sys/kernel/debug/sched/min_granularity_ns echo 1000 > /sys/kernel/debug/sched/migration_cost_ns
Notes	None
JVM Instance jvm_Ctr_1
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	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	-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=43
Tuning	Used numactl to affinitize two Backend JVMs 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=0 --localalloc Group6: numactl --cpunodebind=1 --localalloc Group7: numactl --cpunodebind=2 --localalloc Group8: numactl --cpunodebind=3 --localalloc
Notes	None
JVM Instance jvm_TxInjector_1
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	Used numactl to affinitize two Backend JVMs 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=0 --localalloc Group6: numactl --cpunodebind=1 --localalloc Group7: numactl --cpunodebind=2 --localalloc Group8: numactl --cpunodebind=3 --localalloc
Notes	None

max-jOPS and critical-jOPS Details

max-jOPS = jOPS passed before the First Failure
Pass/Fail	Pass	Pass	Fail	Fail	Fail
jOPS	517751	524563	531376	538188	545001

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	262281	330406	434297	466657	466657	382578

Last Success jOPS/First Failure jOPS for SLA points

	Percentile
	10-th	50-th	90-th	95-th	99-th	100-th
500us	- / 6813	- / 6813	- / 6813	- / 6813	- / 6813	- / 6813
1000us	470063 / 6813	- / 6813	- / 6813	- / 6813	- / 6813	- / 6813
5000us	524563 / -	510938 / 476876	388313 / 381501	333813 / 6813	197563 / 6813	- / 6813
10000us	524563 / -	517751 / 483688	463251 / 470063	422376 / 429188	258875 / 265688	- / 6813
25000us	524563 / -	517751 / 490501	470063 / 476876	463251 / 470063	333813 / 327000	6813 / 13625
50000us	524563 / -	517751 / 490501	470063 / 476876	463251 / 470063	449626 / 429188	81750 / 13625
75000us	524563 / -	524563 / -	510938 / 476876	470063 / 476876	463251 / 470063	258875 / 40875
100000us	524563 / -	524563 / -	510938 / 483688	470063 / 476876	463251 / 470063	306563 / 313375
200000us	524563 / -	524563 / -	517751 / 483688	510938 / 483688	470063 / 476876	456438 / 422376
500000us	524563 / -	524563 / -	524563 / -	517751 / 497313	517751 / 483688	463251 / 470063
1000000us	524563 / -	524563 / -	524563 / -	524563 / -	524563 / -	510938 / 483688

Number of probes

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%

Rate of Non-Critical Failures

There were no non-critical failures in Response Time curve building

Delay between performance status pings during RT Curve (Response-Throughput Curve)

IR/PR Accuracy

Run Properties

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	232	256	256	256	256	256	256	256	256	256	256	256	256	256	256	256	256
specjbb.comm.connect.selector.runner.count	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
specjbb.comm.connect.timeouts.connect	60000	600000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000
specjbb.comm.connect.timeouts.read	60000	600000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000
specjbb.comm.connect.timeouts.write	60000	600000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000	60000
specjbb.comm.connect.worker.pool.max	256	81	256	256	256	256	256	256	256	256	256	256	256	256	256	256	256	256
specjbb.comm.connect.worker.pool.min	1	24	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
specjbb.customerDriver.threads	64	{=75, probe=69, saturate=85}
specjbb.forkjoin.workers	344	{Tier1=250, Tier2=7, Tier3=32}
specjbb.group.count	1	8
specjbb.mapreducer.pool.size	344	223
specjbb.txi.pergroup.count	1	1

View table in csv format

Validation Details

Validation Reports


Level: COMPLIANCE
Check	Agent	Result
Check properties on compliance	All	PASSED


Level: CORRECTNESS
Check	Agent	Result
Compare SM and HQ Inventory	All	PASSED

Other Checks

High-bound (max attempted) is 681251 IR

High-bound (settled) is 570709 IR

http://www.spec.org - info@spec.org

SPECjbb2015 Version: [SPECjbb2015 1.04, Feb 16, 2024]

KTNF KR587S4	524563 SPECjbb2015-MultiJVM max-jOPS 382578 SPECjbb2015-MultiJVM critical-jOPS
Tested by: Telecommunications Technology Association	Test Sponsor: Telecommunications Technology Association	Test location: TTA, Seongnam-city, Korea	Test date: Nov 25, 2025
SPEC license #: A83	Hardware Availability: Nov-2025	Software Availability: Jan-2025	Publication: Thu Dec 18 13:04:18 EST 2025


SPECjbb2015-MultiJVM: Multiple JVMs/Single Host (# of groups: 8) Overall SUT Description SUT Description max-jOPS and critical-jOPS Details Number of probes Request Mix Accuracy Rate Of Non-Critical Failures Delay between performance status pings IR/PR Accuracy Topology SUT Configuration Properties Validation Details Link to Full Disclosure	Overall Throughput RT curve