SPECjbb2015
Copyright © 2015-2026 Standard Performance Evaluation Corporation
Amazon EC2 r8a.metal-48xl 536478 SPECjbb2015-Composite max-jOPS
461533 SPECjbb2015-Composite 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: Nov-2025 Software Availability: Feb-2026 Publication: Thu Jun 4 13:15:51 EDT 2026
Benchmark Results Summary
 
SPECjbb2015-Composite: Single JVM/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/r8a/
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 r8a.metal-48xl
VendorAmazon Web Services (AWS)
Vendor URLhttps://aws.amazon.com/ec2/instance-types/r8a/
AvailableNov-2025
Modelr8a.metal-48xl
Form FactorNone
CPU NameAMD EPYC 9R45 96-Core Processor
CPU Characteristics96 core, 2.6 GHz, 384MB L3 Cache (Max frequency 4.5 GHz)
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)2600
Primary Cache32KB(I) + 48KB(D) per core
Secondary Cache1MB (I+D) per core
Tertiary Cache384MB (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 6400 MT/s
# and type of Network Interface Cards (NICs)75 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
NameUbuntu 24.04.4 LTS
VendorUbuntu
Vendor URLhttps://ubuntu.com/
VersionLinux 6.17.0-1013-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_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

-Xms1450g -Xmx1450g -Xmn1420g -server -XX:+UseParallelGC -XX:+AlwaysPreTouch -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:MaxTenuringThreshold=15 -XX:-UseAdaptiveSizePolicy -XX:ParallelGCThreads=96 -XX:SurvivorRatio=80 -XX:TargetSurvivorRatio=95 -XX:+UseNUMA -XX:+UseTransparentHugePages -XX:InlineSmallCode=11k -XX:TLABAllocationWeight=2 -XX:ThreadStackSize=200 -XX:AutoBoxCacheMax=32 -XX:OnStackReplacePercentage=35
Tuning None
Notes None
max-jOPS and critical-jOPS Details
max-jOPS = jOPS passed before the First Failure
Pass/Fail Pass Pass Pass Fail Fail
jOPS 522360 529419 536478 543537 550596
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 362358 462359 497653 497653 504712 461533
Last Success jOPS/First Failure jOPS for SLA points
  Percentile
  10-th 50-th 90-th 95-th 99-th 100-th
500us 289416 / 35295 - / 7059 - / 7059 - / 7059 - / 7059 - / 7059
1000us 430594 / 437653 261180 / 35295 14118 / 21177 14118 / 21177 7059 / 14118 - / 7059
5000us 536478 / - 494124 / 501183 409417 / 416476 388241 / 395300 268239 / 240003 84707 / 35295
10000us 536478 / - 522360 / 529419 472948 / 480007 444712 / 451771 367064 / 352946 84707 / 35295
25000us 536478 / - 536478 / - 508242 / 515301 494124 / 501183 458830 / 465889 148237 / 35295
50000us 536478 / - 536478 / - 522360 / 529419 508242 / 515301 494124 / 501183 176473 / 35295
75000us 536478 / - 536478 / - 522360 / 529419 515301 / 522360 494124 / 501183 218827 / 35295
100000us 536478 / - 536478 / - 529419 / 536478 522360 / 529419 501183 / 508242 261180 / 105884
200000us 536478 / - 536478 / - 536478 / - 529419 / 536478 515301 / 522360 324710 / 254121
500000us 536478 / - 536478 / - 536478 / - 536478 / - 536478 / - 451771 / 458830
1000000us 536478 / - 536478 / - 536478 / - 536478 / - 536478 / - 508242 / 515301
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 12
specjbb.controller.maxir.maxFailedPoints 3 1
specjbb.controller.rtcurve.warmup.step 0.1 0.2
specjbb.customerDriver.threads 64 {probe=90, saturate=140}
specjbb.forkjoin.workers 192 {Tier1=48, Tier2=1, Tier3=14}
specjbb.group.count 1 4
specjbb.heartbeat.period 10000 50000
specjbb.heartbeat.threshold 100000 500000
specjbb.mapreducer.pool.size 192 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 705892 IR
High-bound (settled) is 588310 IR
Copyright © 2015-2026 Standard Performance Evaluation Corporation
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SPECjbb2015 Version: [SPECjbb2015 1.04, Feb 16, 2024]