SPECjbb2015
Copyright © 2015-2026 Standard Performance Evaluation Corporation
Amazon EC2 m8g.metal-24xl 275298 SPECjbb2015-Composite max-jOPS
251067 SPECjbb2015-Composite critical-jOPS
Tested by: Infobell IT Solutions Pvt. Ltd. Test Sponsor: Infobell IT Solutions Pvt. Ltd. Test location: Bengaluru,India Test date: November 25, 2025
SPEC license #: 6723 Hardware Availability: Sept-2024 Software Availability: Oct-2025 Publication: Thu Mar 5 13:27:25 EST 2026
Benchmark Results Summary
 
SPECjbb2015-Composite: Single JVM/Single Host
(# of groups: 2)
Overall Throughput RT curve
Overall Throughput RT curve
Overall SUT (System Under Test) Description
VendorAmazon Web Services (AWS)
Vendor URLhttps://aws.amazon.com/ec2/instance-types/m8g/
System SourceSingle Supplier
System DesignationServer Rack
Total Systems1
All SUT Systems IdenticalYES
Total Nodes1
All Nodes IdenticalYES
Nodes Per System1
Total Chips1
Total Cores96
Total Threads96
Total Memory Amount (GB)384
Total OS Images1
SW EnvironmentNon-virtual
  
SUT Description
Hardware hw_1
NameAmazon EC2 m8g.metal-24xl
VendorAmazon Web Services (AWS)
Vendor URLhttps://aws.amazon.com/ec2/instance-types/m8g/
AvailableSept-2024
Modelm8g.metal-24xl
Form FactorNone
CPU NameARM Neoverse-V2
CPU Characteristics96 core, 2.8 GHz, 36MB L3 Cache
Number of Systems1
Nodes Per System1
Chips Per System1
Cores Per System96
Cores Per Chip96
Threads Per System96
Threads Per Core1
VersionNone
CPU Frequency (MHz)2800
Primary Cache64KB(I) + 64KB(D) per core
Secondary Cache2MB (I+D) per core
Tertiary Cache36MB (I+D) on chip per chip
Other CacheNone
Disk1x 500GB EBS with 40 Gbps network bandwidth
File Systemxfs
Memory Amount (GB)384
# and size of DIMM(s)12 x 32GB
Memory DetailsDDR5 5600 MT/s
# and type of Network Interface Cards (NICs)40 Gbps
Power Supply Quantity and Rating (W)None
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
NameRed Hat Enterprise Linux 9.6 (Plow)
VendorRHEL
Vendor URLhttps://www.redhat.com/
Version5.14.0-570.41.1.el9_6.x86_64
AvailableSept-2025
Bitness64
NotesNone
Java Virtual Machine jvm_1
NameOracle Java SE 25.0.1
VendorOracle
Vendor URLhttp://oracle.com/
VersionJava HotSpot 64-bit Server VM, version 25.0.1
AvailableOct-2025
Bitness64
NotesNone
Other Software other_1
NameNone
VendorNone
Vendor URLNone
VersionNone
AvailableNone
BitnessNone
NotesNone
Topology
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_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 400000 > /proc/sys/kernel/sched_latency_ns
  • echo 40000 > /proc/sys/kernel/sched_migration_cost_ns
  • echo 100000000 > /proc/sys/kernel/sched_min_granularity_ns
  • echo 40000 > /proc/sys/kernel/sched_wakeup_granularity_ns
  • echo 128 > /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 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 -Xms350g -Xmx350g -Xmn340g -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 None
Notes None
max-jOPS and critical-jOPS Details
max-jOPS = jOPS passed before the First Failure
Pass/Fail Pass Pass Fail Fail Fail
jOPS 271768 275298 278827 282357 285886
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 192708 266474 266474 270003 270003 251067
Last Success jOPS/First Failure jOPS for SLA points
  Percentile
  10-th 50-th 90-th 95-th 99-th 100-th
500us 232944 / 169414 49412 / 42354 7059 / 10588 7059 / 10588 7059 / 10588 - / 3529
1000us 264709 / 268239 201179 / 105884 49412 / 35295 49412 / 35295 49412 / 24706 7059 / 10588
5000us 275298 / - 264709 / 268239 211768 / 162355 155296 / 123531 109413 / 105884 38824 / 10588
10000us 275298 / - 271768 / 275298 264709 / 268239 261180 / 257651 201179 / 187061 49412 / 10588
25000us 275298 / - 275298 / - 268239 / 271768 264709 / 268239 264709 / 268239 127061 / 10588
50000us 275298 / - 275298 / - 275298 / - 271768 / 275298 264709 / 268239 162355 / 95295
75000us 275298 / - 275298 / - 275298 / - 275298 / - 268239 / 271768 183532 / 148237
100000us 275298 / - 275298 / - 275298 / - 275298 / - 268239 / 271768 215297 / 169414
200000us 275298 / - 275298 / - 275298 / - 275298 / - 275298 / - 254121 / 187061
500000us 275298 / - 275298 / - 275298 / - 275298 / - 275298 / - 261180 / 187061
1000000us 275298 / - 275298 / - 275298 / - 275298 / - 275298 / - 264709 / 257651
Number of probes
Probes jOPS / Total jOPS
Request Mix Accuracy
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)
Delay between status pings
IR/PR Accuracy
IR/PR Accuracy
Run Properties
This section lists properties only set by user
Property Name Default Controller
specjbb.comm.connect.selector.runner.count 0 4
specjbb.forkjoin.workers 96 {Tier1=120, Tier2=1, Tier3=20}
specjbb.group.count 1 2
specjbb.mapreducer.pool.size 96 4
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 352946 IR
High-bound (settled) is 294155 IR
Copyright © 2015-2026 Standard Performance Evaluation Corporation
http://www.spec.org - info@spec.org
SPECjbb2015 Version: [SPECjbb2015 1.04, Feb 16, 2024]