SPECjbb2015
Copyright © 2015-2026 Standard Performance Evaluation Corporation
Amazon Ec2 r8g.metal-24xl 223558 SPECjbb2015-MultiJVM max-jOPS
161209 SPECjbb2015-MultiJVM critical-jOPS
Tested by: Infobell IT Solutions Pvt. Ltd. Test Sponsor: Infobell IT Solutions Pvt. Ltd. Test location: Bengaluru, IND Test date: May 20, 2026
SPEC license #: 6723 Hardware Availability: July-2024 Software Availability: Feb-2026 Publication: Thu Jun 25 13:02:27 EDT 2026
Benchmark Results Summary
 
SPECjbb2015-MultiJVM: Multiple JVMs/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/r8g/
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)768
Total OS Images1
SW EnvironmentNon-virtual
  
SUT Description
Hardware hw_1
NameAmazon EC2 r8g.metal-24xl
VendorAmazon Web Services (AWS)
Vendor URLhttps://aws.amazon.com/ec2/instance-types/m8g/
AvailableJuly-2024
Modelr8g.metal-24xl
Form FactorNone
CPU NameAWS Graviton4
CPU Characteristics96 cores, 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
Version1.0
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
File Systemext4
Memory Amount (GB)768
# and size of DIMM(s)12 x 64 GB
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
  • 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
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(2), jvm_TxInjector_1(2)
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 > /sys/kernel/debug/sched/base_slice_ns
  • echo NO_WAKEUP_PREEMPTION > /sys/kernel/debug/sched/features
  • echo 40000 > /sys/kernel/debug/sched/migration_cost_ns
  • echo 9000 > /sys/kernel/debug/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: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

-Xms350g -Xmx350g -Xmn320g -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
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 TxInjector JVM to 48 Core/ 48 Threads

  • Group1: numactl --physcpubind=0-47 --localalloc
  • Group2: numactl --physcpubind=48-95 --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 220616 223558 226499 229441 232382
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 89717 175022 186788 192671 192671 161209
Last Success jOPS/First Failure jOPS for SLA points
  Percentile
  10-th 50-th 90-th 95-th 99-th 100-th
500us 5883 / 8825 2942 / 5883 - / 2942 - / 2942 - / 2942 - / 2942
1000us 197084 / 200025 11766 / 14708 5883 / 8825 5883 / 8825 2942 / 5883 - / 2942
5000us 214733 / 217675 197084 / 200025 161785 / 88246 94130 / 85305 67656 / 70597 5883 / 8825
10000us 217675 / 220616 205908 / 208850 173551 / 176493 141194 / 105896 88246 / 91188 23532 / 8825
25000us 220616 / 223558 208850 / 211792 194142 / 197084 188259 / 191201 173551 / 176493 55889 / 8825
50000us 220616 / 223558 211792 / 214733 200025 / 202967 194142 / 197084 185318 / 188259 102954 / 91188
75000us 220616 / 223558 214733 / 217675 205908 / 208850 200025 / 202967 191201 / 194142 147077 / 129428
100000us 220616 / 223558 214733 / 217675 205908 / 208850 205908 / 208850 191201 / 194142 170610 / 141194
200000us 223558 / - 217675 / 220616 208850 / 211792 205908 / 208850 205908 / 202967 191201 / 194142
500000us 223558 / - 220616 / 223558 214733 / 217675 211792 / 214733 208850 / 211792 205908 / 208850
1000000us 223558 / - 223558 / - 223558 / - 220616 / 223558 220616 / 223558 208850 / 211792
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
specjbb.comm.connect.selector.runner.count 0 4 0 0 0 0
specjbb.controller.handshake.period 5000 20000
specjbb.controller.handshake.timeout 600000 900000
specjbb.forkjoin.workers 96 {Tier1=120, Tier2=1, Tier3=20}
specjbb.group.count 1 2
specjbb.heartbeat.period 10000 2000
specjbb.heartbeat.threshold 100000 9000000
specjbb.mapreducer.pool.size 96 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 294155 IR
High-bound (settled) is 245996 IR
Copyright © 2015-2026 Standard Performance Evaluation Corporation
http://www.spec.org - info@spec.org
SPECjbb2015 Version: [SPECjbb2015 1.04, Feb 16, 2024]