SPECjbb2015
Copyright © 2015-2026 Standard Performance Evaluation Corporation
Amazon EC2 r8g.metal-48xl 421679 SPECjbb2015-MultiJVM max-jOPS
308674 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 13, 2026
SPEC license #: 6723 Hardware Availability: July-2024 Software Availability: Feb-2026 Publication: Thu Jun 4 13:15:51 EDT 2026
Benchmark Results Summary
 
SPECjbb2015-MultiJVM: Multiple JVMs/Single Host
(# of groups: 4)
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/r8g/
System SourceSingle Supplier
System DesignationServer Rack
Total Systems1
All SUT Systems IdenticalYES
Total Nodes1
All Nodes IdenticalYES
Nodes Per System1
Total Chips2
Total Cores192
Total Threads192
Total Memory Amount (GB)1536
Total OS Images1
SW EnvironmentNon-virtual
  
SUT Description
Hardware hw_1
NameAmazon EC2 r8g.metal-48xl
VendorAmazon Web Services (AWS)
Vendor URLhttps://aws.amazon.com/ec2/instance-types/r8g/
AvailableJuly-2024
Modelr8g.metal-48xl
Form FactorNone
CPU NameAWS Graviton4
CPU Characteristics96 cores, 2.7 GHz, 36MB L3 cache
Number of Systems1
Nodes Per System1
Chips Per System2
Cores Per System192
Cores Per Chip96
Threads Per System192
Threads Per Core1
Version1.0
CPU Frequency (MHz)2700
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
File Systemext4
Memory Amount (GB)1536
# and size of DIMM(s)24 x 64GB
Memory DetailsDDR5 5200 MT/s
# and type of Network Interface Cards (NICs)50 Gbps
Power Supply Quantity and Rating (W)None
Other HardwareNone
Cabinet/Housing/EnclosureNone
Shared DescriptionNone
Shared CommentNone
NotesNone
Other Hardware network_1
NameNone
VendorNone
Vendor URLNone
VersionNone
AvailableNone
BitnessNone
NotesNone
Operating System os_1
NameUbuntu 24.04.4 LTS
VendorUbuntu
Vendor URLhttps://ubuntu.com/
VersionLinux 6.17.0-1012-aws
AvailableFeb-2026
Bitness64
NotesNone
Java Virtual Machine jvm_1
NameOracle Java SE 25.0.2
VendorOracle
Vendor URLhttp://oracle.com/
VersionJava HotSpot 64-bit Server VM, version 25.0.2
AvailableJan-2026
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_Ctr_1(1), jvm_Backend_1(4), jvm_TxInjector_1(4)
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 9000000 > /proc/sys/kernel/sched_migration_cost_ns
  • echo 9000 > /proc/sys/kernel/sched_nr_migrate
  • 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/vm/numa_stat
  • 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_Ctr_1
Parts of Benchmark Controller
JVM Instance Description jvm_1
Command Line

-Xms2g -Xmx2g -Xmn1536m -XX:+UseParallelGC -XX:ParallelGCThreads=2 -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

-Xms340g -Xmx340g -Xmn300g -XX:+UseLargePages -XX:+UseParallelGC -XX:LargePageSizeInBytes=2m -XX:-UseAdaptiveSizePolicy -XX:SurvivorRatio=28 -XX:+UseTransparentHugePages -XX:ParallelGCThreads=48 -XX:TargetSurvivorRatio=95 -XX:MaxTenuringThreshold=1 -XX:+AlwaysPreTouch -XX:InlineSmallCode=13k
Tuning

Used numactl to affinitize each Backend JVM to 48 Core/ 48 Threads

  • Group1: numactl --physcpubind=0-47 --localalloc
  • Group2: numactl --physcpubind=48-95 --localalloc
  • Group3: numactl --physcpubind=96-143 --localalloc
  • Group4: numactl --physcpubind=144-191 --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:CICompilerCount=4
Tuning

Used numactl to affinitize each Backend JVM to 48 Core/ 48 Threads

  • Group1: numactl --physcpubind=0-47 --localalloc
  • Group2: numactl --physcpubind=48-95 --localalloc
  • Group3: numactl --physcpubind=96-143 --localalloc
  • Group4: numactl --physcpubind=144-191 --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 416776 421679 426583 431486 436389
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 188775 326066 350582 355485 365292 308674
Last Success jOPS/First Failure jOPS for SLA points
  Percentile
  10-th 50-th 90-th 95-th 99-th 100-th
500us 9806 / 14710 4903 / 9806 - / 4903 - / 4903 - / 4903 - / 4903
1000us 367744 / 372647 19613 / 24516 9806 / 14710 9806 / 14710 4903 / 9806 - / 4903
5000us 397163 / 402066 372647 / 377550 284388 / 210840 186323 / 191227 132388 / 137291 4903 / 9806
10000us 402066 / 406970 377550 / 382453 323614 / 328518 284388 / 259872 186323 / 191227 9806 / 14710
25000us 402066 / 406970 387357 / 392260 362840 / 367744 348131 / 353034 323614 / 328518 93162 / 19613
50000us 402066 / 406970 392260 / 397163 372647 / 377550 367744 / 372647 348131 / 353034 205936 / 181420
75000us 406970 / 411873 397163 / 402066 377550 / 382453 372647 / 377550 353034 / 357937 264775 / 230453
100000us 406970 / 411873 397163 / 402066 377550 / 382453 377550 / 382453 362840 / 367744 308905 / 254969
200000us 411873 / 416776 402066 / 406970 387357 / 392260 382453 / 387357 372647 / 377550 348131 / 343227
500000us 416776 / 421679 402066 / 406970 397163 / 402066 397163 / 402066 387357 / 392260 372647 / 377550
1000000us 421679 / - 416776 / 421679 402066 / 406970 402066 / 406970 402066 / 406970 387357 / 392260
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 Group1.Backend.beJVM Group1.TxInjector.txiJVM1 Group2.Backend.beJVM Group2.TxInjector.txiJVM1 Group3.Backend.beJVM Group3.TxInjector.txiJVM1 Group4.Backend.beJVM Group4.TxInjector.txiJVM1
specjbb.comm.connect.selector.runner.count 0 4 0 0 0 0 0 0 0 0
specjbb.controller.handshake.period 5000 20000
specjbb.controller.handshake.timeout 600000 900000
specjbb.forkjoin.workers 192 {Tier1=120, Tier2=1, Tier3=20}
specjbb.group.count 1 4
specjbb.heartbeat.period 10000 2000
specjbb.heartbeat.threshold 100000 9000000
specjbb.mapreducer.pool.size 192 4
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 490325 IR
High-bound (settled) is 454460 IR
Copyright © 2015-2026 Standard Performance Evaluation Corporation
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SPECjbb2015 Version: [SPECjbb2015 1.04, Feb 16, 2024]