Amazon EC2 r8i.metal-48xl 423535 SPECjbb2015-Composite max-jOPS
392641 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: Aug-2025 Software Availability: Feb-2026 Publication: Thu Jun 4 13:15:51 EDT 2026
Benchmark Results Summary
 
Overall Throughput RT curve
Overall SUT (System Under Test) Description
VendorAmazon Web Services (AWS)
Vendor URLhttps://aws.amazon.com/ec2/instance-types/r8i/
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 Threads192
Total Memory Amount (GB)1536
Total OS Images1
SW EnvironmentNon-virtual
 
Hardware hw_1
NameAmazon EC2 r8i.metal-48xl
VendorAmazon Web Services (AWS)
Vendor URLhttps://aws.amazon.com/ec2/instance-types/r8i/
AvailableAug-2025
Modelr8i.metal-48xl
Form FactorNone
CPU NameIntel(R) Xeon(R) 6975P-C
CPU Characteristics96 core, 2.7GHz, 480MB L3 Cache(All-Core Turbo Boost up to 3.9 GHz)
Number of Systems1
Nodes Per System1
Chips Per System1
Cores Per System96
Cores Per Chip96
Threads Per System192
Threads Per Core2
Version1.0
CPU Frequency (MHz)2700
Primary Cache64KB(I) + 48KB(D) per core
Secondary Cache2MB (I+D) per core
Tertiary Cache480MB (I+D) on chip per chip
Other CacheNone
Disk1x 500GB EBS with 75 Gbps network bandwidth
File Systemext4
Memory Amount (GB)1536
# and size of DIMM(s)12 x 128GB
Memory DetailsDDR5 7200 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 6.17.0-1012-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
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=5 -XX:-UseAdaptiveSizePolicy -XX:ParallelGCThreads=192 -XX:SurvivorRatio=120 -XX:TargetSurvivorRatio=95 -XX:+UseNUMA -XX:-UseAdaptiveNUMAChunkSizing -XX:+UseTransparentHugePages -XX:InlineSmallCode=11k -XX:TLABAllocationWeight=2 -XX:ThreadStackSize=140 -XX:AutoBoxCacheMax=32 -XX:OnStackReplacePercentage=100

Tuning None
Notes None
max-jOPS = jOPS passed before the First Failure
Pass/Fail Pass Pass Pass Fail Fail
jOPS 412947 418241 423535 428829 434124
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 346769 389123 394417 414005 423535 392641
  Percentile
  10-th 50-th 90-th 95-th 99-th 100-th
500us 90001 / 95295 5294 / 10588 - / 5294 - / 5294 - / 5294 - / 5294
1000us 391770 / 397064 121766 / 95295 15883 / 21177 15883 / 21177 10588 / 15883 - / 5294
5000us 423535 / - 402358 / 407653 360005 / 301769 354711 / 217062 275298 / 153532 79413 / 10588
10000us 423535 / - 423535 / - 391770 / 397064 381182 / 386476 344122 / 349417 95295 / 26471
25000us 423535 / - 423535 / - 418241 / 423535 407653 / 412947 386476 / 391770 174708 / 26471
50000us 423535 / - 423535 / - 423535 / - 423535 / - 391770 / 397064 227650 / 26471
75000us 423535 / - 423535 / - 423535 / - 423535 / - 418241 / 397064 333534 / 137649
100000us 423535 / - 423535 / - 423535 / - 423535 / - 423535 / - 344122 / 312357
200000us 423535 / - 423535 / - 423535 / - 423535 / - 423535 / - 386476 / 349417
500000us 423535 / - 423535 / - 423535 / - 423535 / - 423535 / - 423535 / 391770
1000000us 423535 / - 423535 / - 423535 / - 423535 / - 423535 / - 423535 / -
Probes jOPS / Total jOPS
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%
There were no non-critical failures in Response Time curve building
Delay between status pings
IR/PR Accuracy
This section lists properties only set by user
Property Name Default Controller
specjbb.controller.maxir.maxFailedPoints 3 1
specjbb.controller.rtcurve.warmup.step 0.1 0.2
specjbb.customerDriver.threads 64 {probe=72, saturate=128}
specjbb.forkjoin.workers 192 {Tier1=80, Tier2=1, Tier3=10}
specjbb.group.count 1 3
specjbb.heartbeat.period 10000 50000
specjbb.heartbeat.threshold 100000 500000
View table in csv format
 
Level: COMPLIANCE
Check Agent Result
Check properties on compliance All PASSED
 
Level: CORRECTNESS
Check Agent Result
Compare SM and HQ Inventory All PASSED
High-bound (max attempted) is 529419 IR
High-bound (settled) is 448744 IR