ESLIMKOREA ES2404-EW 216154 SPECjbb2015-MultiJVM max-jOPS
119632 SPECjbb2015-MultiJVM critical-jOPS
Tested by: Telecommunications Technology Association Test Sponsor: Telecommunications Technology Association Test location: TTA, Seongnam-city, Korea Test date: Oct 1, 2025
SPEC license #: A83 Hardware Availability: Sep-2025 Software Availability: Jul-2025 Publication: Thu Dec 4 11:18:20 EST 2025
Benchmark Results Summary
 
Overall Throughput RT curve
Overall SUT (System Under Test) Description
VendorESLIMKOREA
Vendor URLhttp://www.eslim.co.kr
System SourceSingle Supplier
System DesignationServer Rack
Total Systems1
All SUT Systems IdenticalYES
Total Nodes1
All Nodes IdenticalYES
Nodes Per System1
Total Chips2
Total Cores56
Total Threads112
Total Memory Amount (GB)1024
Total OS Images1
SW EnvironmentNon-virtual
 
Hardware hw_1
NameES2404-EW
VendorESLIMKOREA
Vendor URLhttp://www.eslim.co.kr
AvailableDec-2023
ModelES2404-EW
Form Factor4U
CPU NameIntel Xeon Gold 5520+
CPU Characteristics28 Core, 2.20 GHz, 52.5 MB L3 Cache (Turbo Boost Technology up to 4.00 GHz)
Number of Systems1
Nodes Per System1
Chips Per System2
Cores Per System56
Cores Per Chip28
Threads Per System112
Threads Per Core2
Version2.1 12/12/2023
CPU Frequency (MHz)2200
Primary Cache32 KB(I) + 48 KB(D) per core
Secondary Cache2 MB (I+D) per core
Tertiary Cache52.5 MB (I+D) on chip per chip
Other CacheNone
Disk1x 480GB SATA SSD
File Systemxfs
Memory Amount (GB)1024
# and size of DIMM(s)16 x 64 GB
Memory Details64GB 2Rx4 PC5-38400R
# and type of Network Interface Cards (NICs)3 x 10 Gbit NICs
Power Supply Quantity and Rating (W)2 x 1600
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
NameRed Hat Enterprise Linux 9.5
VendorRedHat
Vendor URLhttps://www.redhat.com/
Version5.14.0-503.11.1.el9_5.x86_64
AvailableNov 2024
Bitness64
NotesNone
Java Virtual Machine jvm_1
NameOracle Java SE 17.0.16
VendorOracle
Vendor URLhttp://www.oracle.com/
VersionJava HotSpot 64-bit Server VM, version 17.0.16
AvailableJul-2025
Bitness64
Notesnote
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 BIOS Settings:
  • Intel HT Technology=Enable
  • Hardware Prefetcher=Enabled
  • Turbo Mode=Enable
  • SNC=SNC2 Enable
  • Power Performance Tuning=BIOS Controls EPB
  • ENERGY_PERF_BIAS_CFG mode=Performance
Notes None
OS Image os_Image_1
JVM Instances jvm_Ctr_1(1), jvm_Backend_1(8), jvm_TxInjector_1(8)
OS Image Description os_1
Tuning
  • tuned-adm profile throughput-performance
  • ulimit -n 1024000
  • echo 10000 > /proc/sys/kernel/sched_cfs_bandwidth_slice_us
  • echo 0 > /proc/sys/kernel/sched_child_runs_first
  • echo 56000000 > /sys/kernel/debug/sched/latency_ns
  • echo 1000 > /sys/kernel/debug/sched/migration_cost_ns
  • echo 16000000 > /sys/kernel/debug/sched/min_granularity_ns
  • echo 9 > /sys/kernel/debug/sched/nr_migrate
  • echo 100 > /proc/sys/kernel/sched_rr_timeslice_ms
  • echo 1000000 > /proc/sys/kernel/sched_rt_period_us
  • echo 990000 > /proc/sys/kernel/sched_rt_runtime_us
  • echo 0 > /proc/sys/kernel/sched_schedstats
  • echo 1 > /sys/kernel/debug/sched/tunable_scaling
  • echo 50000000 > /sys/kernel/debug/sched/wakeup_granularity_ns
  • 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/kernel/numa_balancing
  • echo always > /sys/kernel/mm/transparent_hugepage/defrag
  • echo always > /sys/kernel/mm/transparent_hugepage/enabled
  • ulimit -v 800000000
  • ulimit -m 800000000
  • ulimit -l 800000000
  • echo 300 > /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages
  • echo 8000 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
  • systemctl stop systemed-update-utmp-runlevel.service
  • echo 274877906944 > /proc/sys/kernel/shmmax
  • echo 274877906944 > /proc/sys/kernel/shmall
Notes None
JVM Instance jvm_Ctr_1
Parts of Benchmark Controller
JVM Instance Description jvm_1
Command Line -server -Xms2g -Xmx2g -Xmn1536m -XX:+UseLargePages -XX:LargePageSizeInBytes=1G -XX:+UseParallelGC -XX:ParallelGCThreads=2
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 -XX:+UseParallelGC -XX:+UseLargePages -XX:+AlwaysPreTouch -XX:-UseAdaptiveSizePolicy -XX:MaxTenuringThreshold=15 -XX:InlineSmallCode=10k -verbose:gc -XX:-UseCountedLoopSafepoints -XX:LoopUnrollLimit=20 -server -XX:TargetSurvivorRatio=95 -XX:SurvivorRatio=28 -XX:LargePageSizeInBytes=1G -XX:MaxGCPauseMillis=500 -XX:AdaptiveSizeMajorGCDecayTimeScale=12 -XX:AdaptiveSizeDecrementScaleFactor=2 -XX:AllocatePrefetchLines=3 -XX:AllocateInstancePrefetchLines=2 -XX:AllocatePrefetchStepSize=128 -XX:AllocatePrefetchDistance=384 -Xms29g -Xmx29g -Xmn27g -XX:UseAVX=0 -XX:ParallelGCThreads=14 -XX:+UseHugeTLBFS
Tuning Used numactl to affinitize each Injector JVM to physical cores in a NUMA node.
  • Group1: numactl --physcpubind=0-6,56-62 --localalloc
  • Group2: numactl --physcpubind=7-13,63-69 --localalloc
  • Group3: numactl --physcpubind=14-20,70-76 --localalloc
  • Group4: numactl --physcpubind=21-27,77-83 --localalloc
  • Group5: numactl --physcpubind=28-34,84-90 --localalloc
  • Group6: numactl --physcpubind=35-41,91-97 --localalloc
  • Group7: numactl --physcpubind=42-48,98-104 --localalloc
  • Group8: numactl --physcpubind=49-55,105-111 --localalloc
Notes None
JVM Instance jvm_TxInjector_1
Parts of Benchmark TxInjector
JVM Instance Description jvm_1
Command Line -server -Xms2g -Xmx2g -Xmn1536m -XX:+UseLargePages -XX:LargePageSizeInBytes=1G -XX:+UseParallelGC -XX:ParallelGCThreads=2
Tuning Used numactl to affinitize each Injector JVM to physical cores in a NUMA node.
  • Group1: numactl --physcpubind=0-6,56-62 --localalloc
  • Group2: numactl --physcpubind=7-13,63-69 --localalloc
  • Group3: numactl --physcpubind=14-20,70-76 --localalloc
  • Group4: numactl --physcpubind=21-27,77-83 --localalloc
  • Group5: numactl --physcpubind=28-34,84-90 --localalloc
  • Group6: numactl --physcpubind=35-41,91-97 --localalloc
  • Group7: numactl --physcpubind=42-48,98-104 --localalloc
  • Group8: numactl --physcpubind=49-55,105-111 --localalloc
Notes None
max-jOPS = jOPS passed before the First Failure
Pass/Fail Pass Pass Fail Fail Fail
jOPS 213611 216154 218697 221240 223783
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 80104 103415 123335 146221 164022 119632
  Percentile
  10-th 50-th 90-th 95-th 99-th 100-th
500us 5086 / 7629 2543 / 5086 - / 2543 - / 2543 - / 2543 - / 2543
1000us 27973 / 30516 10172 / 12715 5086 / 7629 5086 / 7629 2543 / 5086 - / 2543
5000us 200896 / 203439 167837 / 170380 48317 / 50860 45774 / 48317 38145 / 40688 15258 / 7629
10000us 205982 / 208525 190724 / 193267 155122 / 157665 132235 / 134778 78833 / 81376 15258 / 10172
25000us 211068 / 213611 198353 / 200896 178009 / 180552 165294 / 167837 106806 / 101720 15258 / 10172
50000us 213611 / 216154 200896 / 203439 188181 / 190724 175466 / 178009 122064 / 124607 15258 / 10172
75000us 213611 / 216154 203439 / 205982 190724 / 193267 180552 / 183095 144950 / 147493 15258 / 10172
100000us 216154 / - 205982 / 208525 193267 / 195810 188181 / 190724 162751 / 165294 15258 / 10172
200000us 216154 / - 211068 / 213611 200896 / 203439 198353 / 200896 190724 / 193267 127149 / 25430
500000us 216154 / - 216154 / - 213611 / 216154 211068 / 213611 205982 / 208525 190724 / 193267
1000000us 216154 / - 216154 / - 216154 / - 216154 / - 216154 / - 211068 / 213611
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 Group1.Backend.beJVM Group1.TxInjector.txiJVM1 Group2.Backend.beJVM Group2.TxInjector.txiJVM1 Group3.Backend.beJVM Group3.TxInjector.txiJVM1 Group4.Backend.beJVM Group4.TxInjector.txiJVM1 Group5.Backend.beJVM Group5.TxInjector.txiJVM1 Group6.Backend.beJVM Group6.TxInjector.txiJVM1 Group7.Backend.beJVM Group7.TxInjector.txiJVM1 Group8.Backend.beJVM Group8.TxInjector.txiJVM1
specjbb.comm.connect.client.pool.size 256 232 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256
specjbb.comm.connect.selector.runner.count 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
specjbb.comm.connect.timeouts.connect 60000 600000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000
specjbb.comm.connect.timeouts.read 60000 600000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000
specjbb.comm.connect.timeouts.write 60000 600000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000 60000
specjbb.comm.connect.worker.pool.max 256 81 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256 256
specjbb.comm.connect.worker.pool.min 1 24 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
specjbb.controller.host localhost localhost
specjbb.controller.port 24000 24000
specjbb.controller.type HBIR_RT HBIR_RT
specjbb.customerDriver.threads 64 {=75, probe=69, saturate=85}
specjbb.forkjoin.workers 112 {Tier1=135, Tier2=3, Tier3=14}
specjbb.group.count 1 8
specjbb.mapreducer.pool.size 112 223
specjbb.txi.pergroup.count 1 1
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 254299 IR
High-bound (settled) is 243699 IR