SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Lenovo Global Technology ThinkSystem ST45 V3 SPECpower_ssj2008 = 18,982 overall ssj_ops/watt Test Sponsor: Lenovo Global Technology SPEC License #: 9017 Tested By: Lenovo Global Technology Test Location: Beijing, China Test Date: Nov 24, 2025 Publication: Jan 27, 2026 Hardware Availability: Nov-2025 Software Availability: Jun-2025 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% | 99.5% | 2,700,053 | 104 | 25,874 90% | 89.9% | 2,440,517 | 104 | 23,562 80% | 79.9% | 2,169,856 | 103 | 21,124 70% | 70.0% | 1,900,987 | 101 | 18,892 60% | 60.0% | 1,629,927 | 86.9 | 18,763 50% | 50.1% | 1,358,767 | 65.6 | 20,720 40% | 40.0% | 1,085,282 | 55.1 | 19,679 30% | 30.0% | 814,844 | 51.7 | 15,769 20% | 20.0% | 542,270 | 49.8 | 10,893 10% | 10.1% | 273,520 | 44.9 | 6,089 Active Idle | 0 | 20.6 | 0 sum of ssj_ops / sum of power = | 18,982 System Under Test Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 1 Comment: 'SUT' HARDWARE Hardware Vendor: Lenovo Global Technology Model: ThinkSystem ST45 V3 Form Factor: Tower CPU Name: AMD EPYC 4465P CPU Characteristics: 12 core, 3.4GHz, 64MB L3 Cache CPU Frequency (MHz): 3400 CPU(s) Enabled: 12 cores, 1 chip, 12 cores/chip Hardware Threads: 24 (2 / core) CPU(s) Orderable: 1 chip Primary Cache: 32 KB I + 64 KB D on chip per core Secondary Cache: 512 KB I+D on chip per core Tertiary Cache: 64 MB I+D off chip per chip Other Cache: None Memory Amount (GB): 32.0 # and size of DIMM: 2 x 16 GB Memory Details: 2 x 16GB 1Rx8 PC5-5600;slots 1 and 2 populated Power Supply Quantity and Rating 1 x 300 (W): Power Supply Details: Lenovo Disk Drive: 1 x 480GB M.2 NVMe SSD P/N:4XB7A83139 Disk Controller: Integrated NVME controller # and type of Network Interface 1 x ThinkSystem 1GbE RJ45 1-port Cards (NICs) Installed: NICs Enabled in Firmware / OS / 1/1/1 Connected: Network Speed (Mbit): 1000 Keyboard: None Mouse: None Monitor: None Optical Drives: No Other Hardware: None SOFTWARE Power Management: Enabled (see SUT Notes) Operating System (OS): SUSE Linux Enterprise Server 15 SP7 OS Version: 6.4.0-150700.51-default Filesystem: xfs JVM Vendor: Oracle Corporation JVM Version: Java HotSpot(TM) 64-Bit Server VM (build 17.0.10+11-LTS-240, mixed mode, sharing), version 17.0.10 JVM Command-line Options: -server -Xmn1900m -Xms2048m -Xmx2048m -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:InlineSmallCode=1500 -XX:UseAVX=1 -XX:AutoBoxCacheMax=20000 -XX:+UseParallelGC -XX:+OptimizeFill -XX:+AggressiveHeap -XX:MaxInlineSize=270 -XX:FreqInlineSize=2500 JVM Affinity: for each even physicalCoreId { numactl -C physicalCoreId, physicalCoreId + 1, physicalCoreId + 24, physicalCoreId + 25} JVM Instances: 6 JVM Initial Heap (MB): 2048 JVM Maximum Heap (MB): 2048 JVM Address Bits: 64 Boot Firmware Version: QIE105F Management Firmware Version: None Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings * AMD Secure Virtual Machine : Disable Management Firmware Settings None System Under Test Notes * Benchmark started via ssh * Each JVM instance was bound to 4 logical processors * kernal parameter:pcie_aspm=force pcie_aspm.policy=powersupersave * The system ROM used for this result contains AMD AGESA version 0xb404032 for the AMD EPYC 4465P processor. Controller System HARDWARE Hardware Vendor: Lenovo Global Technology Model: Thinksystem SR665 CPU Description: 2 x AMD EPYC 7773X Memory amount (GB): 512 SOFTWARE Operating System (OS): Microsoft Windows Server 2022 DataCenter - Version 21H2 (OS Build 20348.1249) JVM Vendor: Oracle Corporation JVM Version: Oracle Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode), version 1.7.0_80 CCS Version: 1.2.6 Measurement Devices POWER ANALYZER PWR1 Hardware Vendor: YOKOGAWA, Inc. Model: WT310E Serial Number: C3SH31010E Connectivity: USB Input Connection: Default Metrology Institute: China National Accreditation Service for Conformity Assessment (CNAS) Accredited by: CHINA CEPREI LABORATORY CALIBRATION & TESTING CENTRB Calibration Label: 1GA25011731-0002 Date of Calibration: 15-Sep-2025 PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS PTDaemon Version: 1.11.3-a7835373-20251015 Setup Description: Connected to PSU 1 TEMPERATURE SENSOR TEMP1 Hardware Vendor: Digi International, Inc. Model: Watchport/H Driver Version: 5.70.105.0 Connectivity: USB PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS Setup Description: 50 mm in front of SUT main intake Notes * SPECpower_ssj.props input.load_level.number_warehouses set to 24 due to a known inconsistency in processor reporting with this Java version. Aggregate Electrical and Environmental Data Target Load | Average | Minimum | Active | Ambient | Power (W) | Temperature | | (Degrees C) ----------- | ---------- | ------------- 100% | 104 | 21.8 90% | 104 | 21.8 80% | 103 | 21.8 70% | 101 | 21.8 60% | 86.9 | 21.8 50% | 65.6 | 21.5 40% | 55.1 | 21.4 30% | 51.7 | 21.4 20% | 49.8 | 21.6 10% | 44.9 | 21.6 Active Idle | 20.6 | 21.5 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 220V / 50 Hz / 1 phase / | 21.4 | 43 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20251201-01549-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 2,491,782 Calibration 2 | | | 2,706,112 Calibration 3 | | | 2,723,474 ssj_ops@calibrated=2,714,793 100% | 99.5% | 2,714,793 | 2,700,053 90% | 89.9% | 2,443,314 | 2,440,517 80% | 79.9% | 2,171,834 | 2,169,856 70% | 70.0% | 1,900,355 | 1,900,987 60% | 60.0% | 1,628,876 | 1,629,927 50% | 50.1% | 1,357,397 | 1,358,767 40% | 40.0% | 1,085,917 | 1,085,282 30% | 30.0% | 814,438 | 814,844 20% | 20.0% | 542,959 | 542,270 10% | 10.1% | 271,479 | 273,520 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20251201-01549.localhost.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]