SPECjbb2015 Report for jbb2015-20260528-01729 : 796112 max-jOPS ; 517489 critical-jOPS

SUT Description

Hardware hw_1
Name	Amazon EC2 m8i.metal-96xl
Vendor	Amazon Web Services (AWS)
Vendor URL	https://aws.amazon.com/ec2/instance-types/m8i/
Available	Dec-2025
Model	m8i.metal-96xl
Form Factor	None
CPU Name	Intel(R) Xeon(R) 6975P-C
CPU Characteristics	96 core, 3.9GHz, 480MB L3 Cache
Number of Systems	1
Nodes Per System	1
Chips Per System	2
Cores Per System	192
Cores Per Chip	96
Threads Per System	384
Threads Per Core	2
Version	1.0
CPU Frequency (MHz)	3900
Primary Cache	64KB(I) + 48KB(D) per core
Secondary Cache	2MB (I+D) per core
Tertiary Cache	480MB (I+D) on chip per chip
Other Cache	None
Disk	1x 500GB EBS
File System	ext4
Memory Amount (GB)	1536
# and size of DIMM(s)	6 x 256GB
Memory Details	DDR5 7200 MT/s
# and type of Network Interface Cards (NICs)	100 Gbps
Power Supply Quantity and Rating (W)	None
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. The submitter confirms that the benchmark configuration and execution comply with the applicable Terms of Service and usage policies of the hardware, software, and service providers on which the system under test was deployed
Other Hardware network_1
Name	None
Vendor	None
Vendor URL	None
Version	None
Available	None
Bitness	None
Notes	None

Operating System os_1
Name	Ubuntu 24.04.4 LTS
Vendor	Ubuntu
Vendor URL	https://ubuntu.com/
Version	Linux 6.17.0-1013-aws
Available	Feb-2026
Bitness	64
Notes	None
Java Virtual Machine jvm_1
Name	Oracle Java SE 25.0.2
Vendor	Oracle
Vendor URL	http://oracle.com/
Version	Java HotSpot 64-bit Server VM, version 25.0.2
Available	Jan-2026
Bitness	64
Notes	None
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	None
Notes	None

OS Image os_Image_1
JVM Instances	jvm_Ctr_1(1), jvm_Backend_1(12), jvm_TxInjector_1(12)
OS Image Description	os_1
Tuning	tuned-adm profile throughput-performance ulimit -n 1024000 echo 960000 > /proc/sys/kernel/sched_rt_runtime_us echo 9000000 > /proc/sys/kernel/sched_base_slice_ns echo NO_WAKEUP_PREEMPTION > /sys/kernel/debug/sched/features echo 40000 > /proc/sys/kernel/sched_migration_cost_ns echo 9000 > /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 madvise > /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=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=1G
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	-XX:+UseParallelGC -XX:+UseLargePages -XX:+AlwaysPreTouch -XX:-UseAdaptiveSizePolicy -XX:MaxTenuringThreshold=15 -XX:InlineSmallCode=10k -verbose:gc -XX:-UseCountedLoopSafepoints -XX:LoopUnrollLimit=20 -server -XX:TargetSurvivorRatio=95 -XX:SurvivorRatio=28 -XX:LargePageSizeInBytes=1G -XX:+UseTransparentHugePages -XX:MaxGCPauseMillis=500 -XX:AdaptiveSizeMajorGCDecayTimeScale=12 -XX:AdaptiveSizeDecrementScaleFactor=2 -XX:AllocatePrefetchLines=3 -XX:AllocateInstancePrefetchLines=2 -XX:AllocatePrefetchStepSize=128 -XX:AllocatePrefetchDistance=384 -Xms31744m -Xmx31744m -Xmn29696m -XX:ParallelGCThreads=43 -Xlog:pagesize=trace
Tuning	Used numactl to affinitize Backend JVM across NUMA nodes Group1: numactl --cpunodebind=0 --localalloc Group2: numactl --cpunodebind=0 --localalloc Group3: numactl --cpunodebind=1 --localalloc Group4: numactl --cpunodebind=1 --localalloc Group5: numactl --cpunodebind=2 --localalloc Group6: numactl --cpunodebind=2 --localalloc Group7: numactl --cpunodebind=3 --localalloc Group8: numactl --cpunodebind=3 --localalloc Group9: numactl --cpunodebind=4 --localalloc Group10: numactl --cpunodebind=4 --localalloc Group11: numactl --cpunodebind=5 --localalloc Group12: numactl --cpunodebind=5 --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=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=1G
Tuning	Used numactl to affinitize TxInjector JVM across NUMA nodes Group1: numactl --cpunodebind=0 --localalloc Group2: numactl --cpunodebind=0 --localalloc Group3: numactl --cpunodebind=1 --localalloc Group4: numactl --cpunodebind=1 --localalloc Group5: numactl --cpunodebind=2 --localalloc Group6: numactl --cpunodebind=2 --localalloc Group7: numactl --cpunodebind=3 --localalloc Group8: numactl --cpunodebind=3 --localalloc Group9: numactl --cpunodebind=4 --localalloc Group10: numactl --cpunodebind=4 --localalloc Group11: numactl --cpunodebind=5 --localalloc Group12: numactl --cpunodebind=5 --localalloc
Notes	None

max-jOPS and critical-jOPS Details

max-jOPS = jOPS passed before the First Failure
Pass/Fail	Pass	Pass	Pass	Fail	Fail
jOPS	778615	787363	796112	804860	813609

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	354313	468043	564277	616768	643013	517489

Last Success jOPS/First Failure jOPS for SLA points

	Percentile
	10-th	50-th	90-th	95-th	99-th	100-th
500us	8748 / 17497	- / 8748	- / 8748	- / 8748	- / 8748	- / 8748
1000us	559903 / 568651	34994 / 43742	8748 / 17497	8748 / 17497	- / 8748	- / 8748
5000us	673633 / 682381	612394 / 621142	481166 / 489915	411179 / 402430	262454 / 271203	- / 8748
10000us	691130 / 699878	638639 / 647388	568651 / 577400	524909 / 533657	349939 / 358688	- / 8748
25000us	708627 / 717375	673633 / 682381	621142 / 629891	594897 / 603645	463669 / 472418	- / 8748
50000us	717375 / 726124	691130 / 699878	647388 / 656136	629891 / 638639	559903 / 568651	209964 / 61239
75000us	734872 / 743621	699878 / 708627	664884 / 673633	647388 / 656136	612394 / 621142	341191 / 297448
100000us	734872 / 743621	708627 / 717375	673633 / 682381	656136 / 664884	638639 / 647388	428676 / 358688
200000us	769866 / 778615	726124 / 734872	699878 / 708627	691130 / 699878	673633 / 682381	551154 / 516160
500000us	796112 / -	778615 / 787363	743621 / 752369	743621 / 752369	717375 / 726124	638639 / 647388
1000000us	796112 / -	796112 / -	778615 / 787363	778615 / 787363	769866 / 778615	699878 / 708627

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	Group10.Backend.beJVM	Group10.TxInjector.txiJVM1	Group11.Backend.beJVM	Group11.TxInjector.txiJVM1	Group12.Backend.beJVM	Group12.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	Group9.Backend.beJVM	Group9.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	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	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	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	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	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	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	1	1	1	1	1	1	1	1
specjbb.controller.maxir.maxFailedPoints	3	1
specjbb.controller.rtcurve.warmup.step	0.1	0.2
specjbb.customerDriver.threads	64	{probe=69, saturate=85, service=75}
specjbb.forkjoin.workers	384	{Tier1=344, Tier2=16, Tier3=38}
specjbb.group.count	1	12
specjbb.mapreducer.pool.size	384	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 874848 IR

High-bound (settled) is 850957 IR

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

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

Amazon EC2 m8i.metal-96xl	796112 SPECjbb2015-MultiJVM max-jOPS 517489 SPECjbb2015-MultiJVM critical-jOPS
Tested by: Infobell IT Solutions Pvt. Ltd.	Test Sponsor: Infobell IT Solutions Pvt. Ltd.	Test location: Bengaluru,India	Test date: May 27, 2026
SPEC license #: 6723	Hardware Availability: Dec-2025	Software Availability: Feb-2026	Publication: Thu Jun 25 13:02:27 EDT 2026


SPECjbb2015-MultiJVM: Multiple JVMs/Single Host (# of groups: 12) 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