SPECpower_ssj2008
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| Lenovo Global Technology ThinkSystem ST45 V3 | SPECpower_ssj2008 = 20,010 overall ssj_ops/watt | ||||
| Test Sponsor: | Lenovo Global Technology | SPEC License #: | 9017 | Test Method: | Single Node |
| Tested By: | Lenovo Global Technology | Test Location: | Beijing, China | Test Date: | Nov 19, 2025 |
| Hardware Availability: | Nov-2025 | Software Availability: | Jan-2024 | Publication: | Dec 18, 2025 |
| System Source: | Single Supplier | System Designation: | Server | Power Provisioning: | Line-powered |
| Performance | Power | Performance to Power Ratio | ||
|---|---|---|---|---|
| Target Load | Actual Load | ssj_ops | Average Active Power (W) | |
| 100% | 99.7% | 2,806,077 | 105 | 26,766 |
| 90% | 90.1% | 2,536,376 | 104 | 24,363 |
| 80% | 80.1% | 2,254,713 | 103 | 21,820 |
| 70% | 69.9% | 1,968,306 | 103 | 19,177 |
| 60% | 60.0% | 1,687,761 | 70.1 | 24,064 |
| 50% | 49.9% | 1,403,841 | 62.3 | 22,523 |
| 40% | 40.0% | 1,127,153 | 56.8 | 19,845 |
| 30% | 29.9% | 842,512 | 52.1 | 16,171 |
| 20% | 20.0% | 563,312 | 49.7 | 11,340 |
| 10% | 10.0% | 281,097 | 45.7 | 6,145 |
| Active Idle | 0 | 21.5 | 0 | |
| ∑ssj_ops / ∑power = | 20,010 | |||
| 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 (W): | 1 x 300 |
| 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 Cards (NICs) Installed: | 1 x ThinkSystem 1GbE RJ45 1-port |
| NICs Enabled in Firmware / OS / Connected: | 1/1/1 |
| 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): | Microsoft Windows Server 2022 Datacenter |
| OS Version: | Version 21H2(OS Build 20348.2227) |
| Filesystem: | NTFS |
| JVM Vendor: | Oracle Corporation |
| JVM Version: | Oracle 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: | start /NODE[0] /AFFINITY [0xF, 0xF0, 0xF00, 0xF000, 0xF000, 0xF0000] |
| 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 |
| 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 |
| 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 |
| Target Load | Average Active Power (W) | Minimum Ambient Temperature (°C) |
|---|---|---|
| 100% | 105 | 20.9 |
| 90% | 104 | 21.0 |
| 80% | 103 | 21.2 |
| 70% | 103 | 21.3 |
| 60% | 70.1 | 21.4 |
| 50% | 62.3 | 21.6 |
| 40% | 56.8 | 21.6 |
| 30% | 52.1 | 21.6 |
| 20% | 49.7 | 21.6 |
| 10% | 45.7 | 21.6 |
| Active Idle | 21.5 | 21.6 |
| Line Standard | Minimum Temperature (°C) | Elevation (m) |
|---|---|---|
| 220V / 50 Hz / 1 phase / 2 wires | 20.9 | 43 |
| Target Load | Actual Load | ssj_ops | |
|---|---|---|---|
| Target | Actual | ||
| Calibration 1 | 2,765,139 | ||
| Calibration 2 | 2,812,514 | ||
| Calibration 3 | 2,817,463 | ||
| ssj_ops@calibrated=2,814,989 | |||
| 100% | 99.7% | 2,814,989 | 2,806,077 |
| 90% | 90.1% | 2,533,490 | 2,536,376 |
| 80% | 80.1% | 2,251,991 | 2,254,713 |
| 70% | 69.9% | 1,970,492 | 1,968,306 |
| 60% | 60.0% | 1,688,993 | 1,687,761 |
| 50% | 49.9% | 1,407,494 | 1,403,841 |
| 40% | 40.0% | 1,125,995 | 1,127,153 |
| 30% | 29.9% | 844,497 | 842,512 |
| 20% | 20.0% | 562,998 | 563,312 |
| 10% | 10.0% | 281,499 | 281,097 |
| Active Idle | 0 | 0 | |
