SPECjbb2015
Copyright © 2015-2026 Standard Performance Evaluation Corporation
Amazon EC2 c8g.metal-48xl 238266 SPECjbb2015-Composite max-jOPS
184034 SPECjbb2015-Composite critical-jOPS
Tested by: Infobell IT Solutions Pvt. Ltd. Test Sponsor: Infobell IT Solutions Pvt. Ltd. Test location: Bengaluru,IND Test date: May 11, 2026
SPEC license #: 6723 Hardware Availability: Sep-2024 Software Availability: Feb-2026 Publication: Thu Jun 4 13:15:51 EDT 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/c8g/
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)384
Total OS Images1
SW EnvironmentNon-virtual
  
SUT Description
Hardware hw_1
NameAmazon EC2 c8g.metal-48xl
VendorAmazon Web Services (AWS)
Vendor URLhttps://aws.amazon.com/ec2/instance-types/c8g/
AvailableSep-2024
Modelc8g.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)384
# and size of DIMM(s)3 x 128GB
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/
Version6.17.0-1012-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
AvailableJanuary-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

-server -Xms330g -Xmx330g -Xmn300g -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 235324 238266 241207 244149 247090
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 136782 166197 195613 213753 222087 184034
Last Success jOPS/First Failure jOPS for SLA points
  Percentile
  10-th 50-th 90-th 95-th 99-th 100-th
500us 11766 / 14708 2942 / 5883 - / 2942 - / 2942 - / 2942 - / 2942
1000us 205908 / 208850 23532 / 26474 5883 / 8825 5883 / 8825 5883 / 8825 - / 2942
5000us 238266 / - 217675 / 220616 191201 / 126487 173551 / 100013 76480 / 79422 8825 / 11766
10000us 238266 / - 232382 / 235324 205908 / 208850 197084 / 179435 135311 / 138253 44123 / 11766
25000us 238266 / - 238266 / - 223558 / 220616 214733 / 217675 164727 / 167668 73539 / 11766
50000us 238266 / - 238266 / - 226499 / 229441 223558 / 220616 194142 / 197084 111779 / 11766
75000us 238266 / - 238266 / - 232382 / 235324 226499 / 220616 217675 / 211792 150019 / 11766
100000us 238266 / - 238266 / - 232382 / 235324 232382 / 235324 223558 / 220616 173551 / 11766
200000us 238266 / - 238266 / - 238266 / - 238266 / - 232382 / 220616 217675 / 191201
500000us 238266 / - 238266 / - 238266 / - 238266 / - 238266 / - 229441 / 220616
1000000us 238266 / - 238266 / - 238266 / - 238266 / - 238266 / - 238266 / 220616
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 192 {Tier1=120, Tier2=1, Tier3=20}
specjbb.group.count 1 2
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 294155 IR
High-bound (settled) is 264587 IR
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SPECjbb2015 Version: [SPECjbb2015 1.04, Feb 16, 2024]