SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Lenovo Global Technology Think System SR650 V4 SPECpower_ssj2008 = 26,777 overall ssj_ops/watt Test Sponsor: Lenovo Global Technology SPEC License #: 9017 Tested By: Lenovo Global Technology Test Location: Beijing, China Test Date: Jun 4, 2026 Publication: Jun 30, 2026 Hardware Availability: Mar-2026 Software Availability: Nov-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% | 100.1% | 22,964,995 | 698 | 32,897 90% | 87.6% | 20,107,019 | 611 | 32,899 80% | 79.8% | 18,301,323 | 560 | 32,702 70% | 70.0% | 16,058,731 | 520 | 30,878 60% | 60.0% | 13,776,117 | 461 | 29,889 50% | 50.0% | 11,482,405 | 417 | 27,531 40% | 40.0% | 9,177,927 | 375 | 24,482 30% | 30.0% | 6,874,261 | 338 | 20,336 20% | 20.0% | 4,586,153 | 298 | 15,406 10% | 10.0% | 2,296,116 | 252 | 9,122 Active Idle | 0 | 162 | 0 sum of ssj_ops / sum of power = | 26,777 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: Think System SR650 V4 Form Factor: 2U CPU Name: Intel Xeon 6787P 2.0 GHz CPU Characteristics: 86-core, 2.0GHz, 336MB L3 Cache CPU Frequency (MHz): 2000 CPU(s) Enabled: 172 cores, 2 chips, 86 cores/chip Hardware Threads: 344 (2 / core) CPU(s) Orderable: 1,2 chips Primary Cache: 64 KB I + 48 KB D on chip per core Secondary Cache: 2 MB I+D on chip per core Tertiary Cache: 336 MB I+D off chip per chip Other Cache: None Memory Amount (GB): 512 # and size of DIMM: 16 x 32768 MB Memory Details: 32GB 2Rx8 PC5-6400B-R; slots 1, 3, 5, 7, 10, 12, 14, 16, 17, 19, 21, 23, 26, 28, 30 and 32 populated Power Supply Quantity and Rating 2 x 1300 (W): Power Supply Details: Lenovo P/N:4P57A88621 Disk Drive: 1 x 960GB 2.5" NVMe SSD P/N:4XB7A93066 Disk Controller: Integrated NvMe controller # and type of Network Interface 1 x ThinkSystem Broadcom 5719 1GbE RJ45 Cards (NICs) Installed: 4-port OCP Ethernet Adapter P/N:4XC7A08235 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: Enabled (see SUT Notes) Operating System (OS): Microsoft Windows Server 2022 Datacenter OS Version: Version 21H2(OS Build 20348.4405) Filesystem: NTFS 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:InlineSmallCode=1500 -XX:AutoBoxCacheMax=20000 -XX:+UseParallelGC -XX:FreqInlineSize=2500 -XX:CompileThresholdScaling=210 JVM Affinity: start /NODE [0,2,4,6] /AFFINITY [0x3,0xc,0x30,0xc0,0x300,0xc00,0x3000,0xc000 ,0x30000,0xc0000,0x300000,0xc00000,0x3000000 ,0xc000000,0x30000000,0xc0000000,0x300000000 ,0xc00000000,0x3000000000,0xc000000000,0x300 00000000,0xc0000000000] start /NODE [1,3,5,7] /AFFINITY [0x3,0xc,0x30,0xc0,0x300,0xc00,0x3000,0xc000 ,0x30000,0xc0000,0x300000,0xc00000,0x3000000 ,0xc000000,0x30000000,0xc0000000,0x300000000 ,0xc00000000,0x3000000000,0xc000000000,0x300 00000000] JVM Instances: 172 JVM Initial Heap (MB): 2048 JVM Maximum Heap (MB): 2048 JVM Address Bits: 64 Boot Firmware Version: IHE118B Management Firmware Version: IHX414J Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: KB5068787 Boot Firmware Settings * Operating Mode: Custom Mode * Page Policy: Adaptive * SRIOV: Disabled * UPI Link Disable: Minimum number for links enabled * MemorySpeed: Balanced * Intel Virtualization Technology: Disabled * Hardware Prefetcher: Disabled * Adjacent Cache Prefetch: Disabled * DCU Streamer Prefetcher: Disabled * SNC: Enabled * Patrol Scrub: Disabled * CPU Frequency Limits: Restrict maximum frequency to 2.10Ghz Management Firmware Settings None System Under Test Notes * Benchmark started via Windows Remote Desktop Connection * Using the local security settings console, "lock pages in memory" was enabled for the user running the benchmark * Balanced mode * Hard Disk set to turn off after 1 minute * Display set to turn off after 1 minute * Minimum processor state set to 0%. * Maximum processor state set to 100%. * System cooling policy set to passive. * PCIE power management set to maximum power saving. * Using Windows PowerShell, set the following powercfg properties: * Powercfg /setacvalueindex scheme_current sub_processor PROCTHROTTLEMIN 0 * Powercfg /setacvalueindex scheme_current sub_processor PROCTHROTTLEMAX 100 * Powercfg /setacvalueindex scheme_current sub_processor PERFEPP 0 * Powercfg /setacvalueindex scheme_current sub_processor perfautonomous 1 * Powercfg /setactive scheme_current * Each JVM instance was bound to 2 logical processors * The system ROM used for this result contains Intel microcode version 0000000005040001 for the Intel Xeon 6787P processor Controller System HARDWARE Hardware Vendor: Lenovo Global Technology Model: ThinkSystem SR650 CPU Description: 2 x Intel Xeon Gold 5218 Memory amount (GB): 768 SOFTWARE Operating System (OS): Microsoft Windows Server 2019 DataCenter - Version 1809 (OS Build 17763.2268) 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: C3UG05013E 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: 1GA25011731-0007 Date of Calibration: 19-Sep-2025 PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS PTDaemon Version: 1.11.4-5bcc369b-20260119 Setup Description: Connected to PSU 1 PSU 2 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 344 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% | 698 | 22.2 90% | 611 | 22.1 80% | 560 | 22.0 70% | 520 | 21.8 60% | 461 | 21.8 50% | 417 | 21.8 40% | 375 | 21.8 30% | 338 | 21.9 20% | 298 | 21.9 10% | 252 | 21.9 Active Idle | 162 | 21.8 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 220V / 50 Hz / 1 phase / | 21.8 | 43 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20260615-01576-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 21,492,900 Calibration 2 | | | 22,844,205 Calibration 3 | | | 23,043,260 ssj_ops@calibrated=22,943,732 100% | 100.1% | 22,943,732 | 22,964,995 90% | 87.6% | 20,649,359 | 20,107,019 80% | 79.8% | 18,354,986 | 18,301,323 70% | 70.0% | 16,060,613 | 16,058,731 60% | 60.0% | 13,766,239 | 13,776,117 50% | 50.0% | 11,471,866 | 11,482,405 40% | 40.0% | 9,177,493 | 9,177,927 30% | 30.0% | 6,883,120 | 6,874,261 20% | 20.0% | 4,588,746 | 4,586,153 10% | 10.0% | 2,294,373 | 2,296,116 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20260615-01576.WIN-1N4BHD15AU1.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]