SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Compal Electronics, Inc. SD223-8A SPECpower_ssj2008 = 20,312 overall ssj_ops/watt Test Sponsor: Compal Electronics, Inc. SPEC License #: 6857 Tested By: Compal Electronics, Inc. Test Location: Neihu Dist, Taipei City, Taiwan (R.O.C.) Test Date: Feb 10, 2026 Publication: Mar 17, 2026 Hardware Availability: May-2025 Software Availability: Sep-2025 Test Method: Multi Node System Source: Single Supplier System Designation: Server Power Provisioning: Line-powered Benchmark Results Summary Performance | Power | Performance | | to Power | | Ratio Target Load | Actual Load | ssj_ops | Average | | | | Active Power | | | | (W) | ------------- | ------------- | ------------- | ------------- | ------------- 100% | 99.7% | 57,260,598 | 2,209 | 25,921 90% | 90.0% | 51,681,983 | 2,059 | 25,098 80% | 80.0% | 45,938,940 | 1,917 | 23,967 70% | 70.0% | 40,195,923 | 1,723 | 23,333 60% | 60.0% | 34,459,712 | 1,537 | 22,422 50% | 50.0% | 28,686,524 | 1,406 | 20,409 40% | 40.0% | 22,967,565 | 1,275 | 18,009 30% | 30.0% | 17,211,693 | 1,136 | 15,147 20% | 20.0% | 11,481,718 | 1,000 | 11,481 10% | 10.0% | 5,737,201 | 856 | 6,702 Active Idle | 0 | 421 | 0 sum of ssj_ops / sum of power = | 20,312 Aggregate SUT Data # of Nodes | # of Chips | # of Cores | # of | Total RAM | # of OS Images | # of JVM | | | Threads | (GB) | | Instances ---------- | ---------- | ---------- | ---------- | ---------- | -------------- | --------- 4 | 8 | 256 | 512 | 1,536 | 4 | 256 System Under Test Shared Hardware SHARED HARDWARE Enclosure: SD223-8A Form Factor: 2U Power Supply Quantity and Rating 2 x 1600 (W): Power Supply Details: 1600W Titanium Efficiency, AcBel p/n R1CA2162D-T00A Network Switch: None Network Switch Details: None KVM Switch: None KVM Switch Details: N/A Other Hardware: None Comment: None Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 4 Comment: SUT HARDWARE PER NODE Hardware Vendor: Compal Electronics, Inc. Model: SD223-8A Form Factor: 2U CPU Name: AMD EPYC 9355 3.55 GHz CPU Characteristics: 32 core, 3.55GHz, 256MB L3 Cache CPU Frequency (MHz): 3550 CPU(s) Enabled: 64 cores, 2 chips, 32 cores/chip Hardware Threads: 128 (2 / core) CPU(s) Orderable: 1,2 chips Primary Cache: 48 KB I + 48 KB D on chip per core Secondary Cache: 1 MB I+D on chip per core Tertiary Cache: 256 MB I+D on chip per chip, 32 MB shared/4 cores Other Cache: None Memory Amount (GB): 384 # and size of DIMM: 24 x 16384 MB Memory Details: [16GB 1Rx8 PC5-4800; slots A0, B0, C0, D0, E0, F0, G0 ,H0 ,I0 ,J0 ,K0 ,L0 populated] Power Supply Quantity and Rating None (W): Power Supply Details: Shared Disk Drive: 1 x 960G M.2 NVMe Express SSD, Micron p/n MTFDKBA960TFR-1BC1ZABDA Disk Controller: Integrated PCIe controller # and type of Network Interface 1 x PCIE i350 4-port, LR-LINK p/n Cards (NICs) Installed: LREC9714HT-PCIE NICs Enabled in Firmware / OS / 4/4/1 Connected: Network Speed (Mbit): 1000 Keyboard: None Mouse: None Monitor: None Optical Drives: No Other Hardware: None SOFTWARE PER NODE Power Management: Preferred plans in OS: Power Saver (see SUT Notes) Operating System (OS): Microsoft Windows Server 2022 Datacenter Evaluation OS Version: Version 21H2 (OS Build 20348.4648) Filesystem: NTFS JVM Vendor: Oracle JVM Version: "17.0.12" 2024-07-16 LTS Java(TM) SE Runtime Environment (build 17.0.12+8-LTS-286) Java HotSpot(TM) 64-Bit Server VM (build 17.0.12+8-LTS-286, mixed mode, sharing) JVM Command-line Options: -server -Xmn1450m -Xms1650m -Xmx1650m -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:UseAVX=0 -XX:AutoBoxCacheMax=20000 -XX:+UseParallelGC -XX:+OptimizeFill -XX:+AggressiveHeap -XX:FreqInlineSize=2500 -XX:InlineSmallCode=3900 -XX:+UseBiasedLocking -XX:AllocatePrefetchDistance=256 -XX:AllocatePrefetchLines=8 -XX:+UseNUMA JVM Affinity: start /NODE [0-15] /AFFINITY [0x3,0xC,0x30,0xC0] JVM Instances: 64 JVM Initial Heap (MB): 2048 JVM Maximum Heap (MB): 2048 JVM Address Bits: 64 Boot Firmware Version: 2.12.0 Management Firmware Version: 1.29.0 Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings AMI Aptio Setup Utility : * 3-link xGMI max speed = 20Gbps * 4-link xGMI max speed = 20Gbps * ACPI CST C2 Latency = 18 * ACPI SRAT L3 Cache As NUMA Domain = Enabled * APBDIS = 0 * BoostFmax = 3500 * BoostFmaxEn = Manual * DDR Power Down Enable = Enabled * Determinism Enable = Performance * DfPstate = 2 * Global C-state Control = Enabled * L1 Burst Prefetch Mode = Disable * Memory Target Speed = DDR3600 * NUMA nodes per socket = NPS4 * PCIE Link Speed Capability = Gen1 * Power Profile Selection = Efficiency Mode * SATA Enable = Disabled * SVM Mode = Disabled * SR-IOV Support = Disabled * xGMI Link Configuration = 3 xGMI Links * xGMI Link Width Control = Manual * xGMI Max Link Width = 0(x4) * xGMI Max Link Width Range Control = Manual Management Firmware Settings none System Under Test Notes * Set input.load_level.number_warehouses=128 in the SPECpower_ssj.props * Each JVM instance was bound to 2 logical processors * OS Tunings: * Using the local security settings console, "lock pages in memory" was enabled for the user running the benchmark * Hard Disk set to turn off after 1 minute * Using Windows PowerShell, set the following powercfg properties: * Powercfg /setacvalueindex scheme_current sub_processor PERFDECTHRESHOLD 95 * Powercfg /setactive scheme_current * Display set to turn off after 1 minute * The system ROM used for this result contains AMD AGESA version 1.0.0.6 and microcode 0xb002151 for the AMD EPYC 9355 processor Controller System HARDWARE Hardware Vendor: Compal Electronics, Inc. Model: SR121-2A CPU Description: AMD EPYC 9184X, 3.54GHz Memory amount (GB): 64 SOFTWARE Operating System (OS): Windows Server 2019 DC JVM Vendor: Oracle JVM Version: java version "17.0.7" 2023-04-18 LTS, Java HotSpot(TM) 64-Bit Server VM (build 17.0.7+8-LTS-224, mixed mode, sharing), Java(TM) SE Runtime Environment (build 17.0.7+8-LTS-224) CCS Version: 1.2.6 Measurement Devices POWER ANALYZER PWR1 Hardware Vendor: Yokogawa Model: WT310E Serial Number: C3UE28006E Connectivity: USB Input Connection: Default Metrology Institute: NML (National Measurement Laboratory,Taiwan) Accredited by: OMNIO Calibration Laboratory Ltd. Calibration Label: OCL-250527T022 Date of Calibration: 28-May-2025 PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS PTDaemon Version: 1.11.3-a7835373-20251015 Setup Description: SUT Power Supply 1 POWER ANALYZER PWR2 Hardware Vendor: Yokogawa Model: WT310E Serial Number: C3VG15007E Connectivity: USB Input Connection: Default Metrology Institute: NML (National Measurement Laboratory,Taiwan) Accredited by: OMNIO Calibration Laboratory Ltd. Calibration Label: OCL-250527T022 Date of Calibration: 28-May-2025 PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS PTDaemon Version: 1.11.3-a7835373-20251015 Setup Description: SUT Power Supply 2 TEMPERATURE SENSOR TEMP1 Hardware Vendor: Cleware Model: USB-Temp Driver Version: 5.3.4.0 Connectivity: USB PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS Setup Description: The front top of SUT main intake Notes None Aggregate Electrical and Environmental Data Target Load | Average | Minimum | Active | Ambient | Power (W) | Temperature | | (Degrees C) ----------- | ---------- | ------------- 100% | 2,209 | 21.4 90% | 2,059 | 21.4 80% | 1,917 | 21.6 70% | 1,723 | 21.8 60% | 1,537 | 21.9 50% | 1,406 | 21.8 40% | 1,275 | 21.8 30% | 1,136 | 21.6 20% | 1,000 | 21.5 10% | 856 | 21.2 Active Idle | 421 | 20.9 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 225V / 60 Hz / 1 phase / | 20.9 | 132 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20260213-01556-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 57,725,365 Calibration 2 | | | 57,375,847 Calibration 3 | | | 57,465,306 ssj_ops@calibrated=57,420,577 100% | 99.7% | 57,420,577 | 57,260,598 90% | 90.0% | 51,678,519 | 51,681,983 80% | 80.0% | 45,936,461 | 45,938,940 70% | 70.0% | 40,194,404 | 40,195,923 60% | 60.0% | 34,452,346 | 34,459,712 50% | 50.0% | 28,710,288 | 28,686,524 40% | 40.0% | 22,968,231 | 22,967,565 30% | 30.0% | 17,226,173 | 17,211,693 20% | 20.0% | 11,484,115 | 11,481,718 10% | 10.0% | 5,742,058 | 5,737,201 Active Idle | | 0 | 0 See the Aggregate Performance Report (power_ssj2008-20260213-01556.sut.txt) for additional details. Copyright (C) 2007-2026 Standard Performance Evaluation Corporation http://www.spec.org - info@spec.org SPECpower_ssj2008 Reporter Version: [SSJ 1.2.10, May 9, 2012]