SPECjbb2015 Report for jbb2015-20260527-01713 : 264709 max-jOPS ; 210982 critical-jOPS

Vendor	Amazon Web Services (AWS)
Vendor URL	https://aws.amazon.com/ec2/instance-types/m8g/
System Source	Single Supplier
System Designation	Server Rack
Total Systems	1
All SUT Systems Identical	YES
Total Nodes	1
All Nodes Identical	YES
Nodes Per System	1
Total Chips	2
Total Cores	192
Total Threads	192
Total Memory Amount (GB)	768
Total OS Images	1
SW Environment	Non-virtual

Hardware hw_1
Name	Amazon EC2 m8g.metal-48xl
Vendor	Amazon Web Services (AWS)
Vendor URL	https://aws.amazon.com/ec2/instance-types/m8g/
Available	Apr-2025
Model	m8g.metal-48xl
Form Factor	None
CPU Name	AWS Graviton4
CPU Characteristics	96 cores, 2.7 GHz, 36MB 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	192
Threads Per Core	1
Version	1.0
CPU Frequency (MHz)	2700
Primary Cache	64KB(I)+64KB(D) per core
Secondary Cache	2MB (I+D) per core
Tertiary Cache	36MB (I+D) on chip per chip
Other Cache	None
Disk	1x 500GB EBS
File System	ext4
Memory Amount (GB)	768
# and size of DIMM(s)	24 x 32GB
Memory Details	DDR5 5200 MT/s
# and type of Network Interface Cards (NICs)	50 Gbps
Power Supply Quantity and Rating (W)	None
Other Hardware	None
Cabinet/Housing/Enclosure	None
Shared Description	None
Shared Comment	None
Notes	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	6.17.0-1012-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

SUT
- Hardware config_1
  - OS Image os_Image_1
    - JVM jvm_Composite_1 : Composite

OS Image os_Image_1
JVM Instances	jvm_Composite_1(1)
OS Image Description	os_1
Tuning	tuned-adm profile throughput-performance ulimit -n 1024000 echo 950000 > /proc/sys/kernel/sched_rt_runtime_us echo 250000 > /proc/sys/kernel/sched_base_slice_ns echo NO_WAKEUP_PREEMPTION > /sys/kernel/debug/sched/features echo 200000 > /proc/sys/kernel/sched_migration_cost_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 1 > /proc/sys/kernel/numa_balancing echo always > /sys/kernel/mm/transparent_hugepage/enabled echo always > /sys/kernel/mm/transparent_hugepage/defrag
Notes	None
JVM Instance jvm_Composite_1
Parts of Benchmark	Composite
JVM Instance Description	jvm_1
Command Line	-server -Xms730g -Xmx730g -Xmn720g -XX:+UseLargePages -XX:+UseParallelGC -XX:LargePageSizeInBytes=2m -XX:-UseAdaptiveSizePolicy -XX:SurvivorRatio=28 -XX:+UseTransparentHugePages -XX:ParallelGCThreads=64 -XX:TargetSurvivorRatio=95 -XX:MaxTenuringThreshold=1 -XX:+AlwaysPreTouch -XX:InlineSmallCode=13k
Tuning	Used numactl to affinitize JVM across NUMA nodes numactl --cpunodebind=0-1 --interleave=0-1
Notes	None

max-jOPS = jOPS passed before the First Failure
Pass/Fail	Pass	Pass	Fail	Fail	Fail
jOPS	261180	264709	268239	271768	275298

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	178237	191473	213532	234709	244415	210982

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

This section lists properties only set by user

Property Name	Default	Controller
specjbb.comm.connect.selector.runner.count	0	4
specjbb.forkjoin.workers	192	{Tier1=120, Tier2=1, Tier3=20}
specjbb.group.count	1	2
specjbb.mapreducer.pool.size	192	4


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

High-bound (max attempted) is 352946 IR

High-bound (settled) is 295784 IR

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

Amazon EC2 m8g.metal-48xl	264709 SPECjbb2015-Composite max-jOPS 210982 SPECjbb2015-Composite critical-jOPS
Tested by: Infobell IT Solutions Pvt. Ltd.	Test Sponsor: Infobell IT Solutions Pvt. Ltd.	Test location: Bengaluru,IND	Test date: May 22, 2026
SPEC license #: 6723	Hardware Availability: Apr-2025	Software Availability: Feb-2026	Publication: Thu Jun 25 13:02:27 EDT 2026


SPECjbb2015-Composite: Single JVM/Single Host (# of groups: 2) 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