SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Compal Electronics, Inc. SR224-2A SPECpower_ssj2008 = 39,975 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: Mar 18, 2026 Publication: Apr 23, 2026 Hardware Availability: Mar-2025 Software Availability: Feb-2026 Test Method: Single 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% | 38,956,420 | 784 | 49,699 90% | 90.0% | 35,163,346 | 722 | 48,719 80% | 80.1% | 31,285,446 | 667 | 46,920 70% | 70.0% | 27,363,002 | 609 | 44,907 60% | 60.0% | 23,458,262 | 554 | 42,325 50% | 50.0% | 19,533,661 | 500 | 39,082 40% | 40.0% | 15,612,673 | 443 | 35,238 30% | 30.0% | 11,721,706 | 384 | 30,561 20% | 20.0% | 7,813,306 | 321 | 24,309 10% | 10.0% | 3,903,699 | 261 | 14,973 Active Idle | 0 | 129 | 0 sum of ssj_ops / sum of power = | 39,975 System Under Test Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 1 Comment: SUT HARDWARE Hardware Vendor: Compal Electronics, Inc. Model: SR224-2A Form Factor: 2U CPU Name: AMD EPYC 9965 CPU Characteristics: 192 core, 2.25GHz, 384MB L3 Cache, Up to 3.7GHz CPU Frequency (MHz): 2250 CPU(s) Enabled: 384 cores, 2 chips, 192 cores/chip Hardware Threads: 768 (2 / core) CPU(s) Orderable: 1,2 chips Primary Cache: 32 KB I + 48 KB D on chip per core Secondary Cache: 1 MB I+D on chip per core Tertiary Cache: 384 MB I+D on chip per chip, 32 MB shared/16 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 1 x 1300 (W): Power Supply Details: R1CA2132A-T00A Disk Drive: 1 x 960G M.2 NVMe Express SSD Disk Controller: Integrated PCIe controller # and type of Network Interface 1 x PCIE i350 4-port Cards (NICs) Installed: 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 Power Management: Preferred plans in OS: Balanced (see SUT Notes) Operating System (OS): Microsoft Windows Server 2022 Datacenter Evaluation OS Version: Version 21H2 (OS Build 20348.4773) 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 [0-23] /AFFINITY [0xF,0xF0,0xF00,0xF000,0xF0000,0xF00000,0xF0 00000,0xF0000000] JVM Instances: 192 JVM Initial Heap (MB): 1650 JVM Maximum Heap (MB): 1650 JVM Address Bits: 64 Boot Firmware Version: 10.27.0 Management Firmware Version: 1.41.0 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 = 1 * BoostFmax = 2100 * BoostFmaxEn = Manual * DDR Power Down Enable = Enabled * Determinism Enable = Performance * DfPstate = 2 * Power Profile Selection = Balanced Core Memory Performance Mode * L1 Burst Prefetch Mode = Disable * L1 Region Prefetcher = Disable * L1 Stride Prefetcher = Disable * L2 Stream HW Prefetcher = Disable * L2 Up/Down Prefetcher = Disable * Memory Target Speed = DDR4800 * PCIE Link Speed Capability = Gen1 * SATA Enable = Disabled * SMEE = Disable * SR-IOV Support = Disabled * SVM Mode = Disabled * xGMI Link Width Control = Manual * xGMI Max Link Width Control = Manual * xGMI Max Link Width = 0(x4) Management Firmware Settings none System Under Test Notes * Set input.load_level.number_warehouses=768 in the SPECpower_ssj.props due to a known inconsistency in processor reporting with this Java version * Each JVM instance was bound to 4 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 1.0.0.7 and microcode 0xb10104f for the AMD EPYC 9965 processor Controller System HARDWARE Hardware Vendor: Compal Electronics, Inc. Model: SD223-8A CPU Description: AMD EPYC 9455P Memory amount (GB): 64 SOFTWARE Operating System (OS): Microsoft Windows Server 2022 Datacenter Evaluation JVM Vendor: Oracle JVM Version: java 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) 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: 1.11.4-5bcc369b-20260119 Setup Description: SUT Power Supply 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% | 784 | 21.3 90% | 722 | 21.3 80% | 667 | 21.2 70% | 609 | 21.1 60% | 554 | 20.6 50% | 500 | 20.7 40% | 443 | 20.5 30% | 384 | 20.8 20% | 321 | 20.6 10% | 261 | 21.0 Active Idle | 129 | 21.4 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 225V / 60 Hz / 1 phase / | 20.5 | 132 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20260329-01559-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 39,256,586 Calibration 2 | | | 39,070,688 Calibration 3 | | | 39,079,971 ssj_ops@calibrated=39,075,329 100% | 99.7% | 39,075,329 | 38,956,420 90% | 90.0% | 35,167,796 | 35,163,346 80% | 80.1% | 31,260,263 | 31,285,446 70% | 70.0% | 27,352,730 | 27,363,002 60% | 60.0% | 23,445,197 | 23,458,262 50% | 50.0% | 19,537,665 | 19,533,661 40% | 40.0% | 15,630,132 | 15,612,673 30% | 30.0% | 11,722,599 | 11,721,706 20% | 20.0% | 7,815,066 | 7,813,306 10% | 10.0% | 3,907,533 | 3,903,699 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20260329-01559.WIN-MMMK5F7BOIJ.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]