Lenovo Global Technology Think System SR630 V4 SPECpower_ssj2008 = 24,865 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: Jul 23, 2026
Hardware Availability: Jul-2026 Software Availability: Jun-2024 Publication: Aug 11, 2026
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% 23,150,702 832 27,824
90% 88.9% 20,694,382 686 30,152
80% 79.1% 18,414,235 595 30,925
70% 68.3% 15,886,943 535 29,705
60% 59.9% 13,944,832 497 28,074
50% 49.8% 11,588,706 440 26,331
40% 40.0% 9,309,875 393 23,712
30% 30.0% 6,979,692 354 19,743
20% 20.0% 4,653,737 307 15,166
10% 10.0% 2,326,516 259 8,965
Active Idle 0 208 0
∑ssj_ops / ∑power = 24,865
Graph of results
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 SR630 V4
Form Factor: 1U
CPU Name: Intel Xeon 6787P
CPU Characteristics: 86-Core,2.00GHz,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 chip
Tertiary Cache: 336 MB I+D on chip per chip
Other Cache: None
Memory Amount (GB): 512
# and size of DIMM: 16 x 32 GB
Memory Details: 16 x 32GB 2Rx8 PC5-6400-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 (W): 2 x 1300
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 Cards (NICs) Installed: 1 x ThinkSystem 10/25GbE 2-Port Ethernet Adapter P/N:4XC7A08238
NICs Enabled in Firmware / OS / Connected: 2/2/1
Network Speed (Mbit): 10000
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 SP6
OS Version: 6.4.0-150600.21-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:InlineSmallCode=1500 -XX:AutoBoxCacheMax=20000 -XX:+UseParallelGC -XX:FreqInlineSize=2500 -XX:CompileThresholdScaling=210
JVM Affinity: for each physicalCore { numactl -C physicalCoreId, physicalCoreId + 1 }
JVM Instances: 172
JVM Initial Heap (MB): 2048
JVM Maximum Heap (MB): 2048
JVM Address Bits: 64
Boot Firmware Version: IHE120L
Management Firmware Version: IHX430Y
Workload Version: SSJ 1.2.10
Director Location: Controller
Other Software: None
Boot Firmware Settings
Management Firmware Settings
None
System Under Test Notes
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 CEPEREI LABORATORY CALIBRATION & TESTING CENTRE
Calibration Label: 1GA25011731-0002
Date of Calibration: 15-Sep-2025
PTDaemon Host System: same as CCS
PTDaemon Host OS: same as CCS
PTDaemon Version: 1.11.4-5bcc369b-20260119
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
Aggregate Electrical and Environmental Data
Target Load Average Active Power (W) Minimum Ambient Temperature (°C)
100% 832 22.6
90% 686 22.7
80% 595 22.8
70% 535 23.0
60% 497 23.2
50% 440 23.5
40% 393 23.5
30% 354 23.3
20% 307 23.1
10% 259 23.0
Active Idle 208 23.0
Line Standard Minimum Temperature (°C) Elevation (m)
220V / 50 Hz / 1 phase / 2 wires 22.6 43
See the Power/Temperature Details Report for additional details.
Aggregate Performance Data
Target Load Actual Load ssj_ops
Target Actual
Calibration 1     22,093,491
Calibration 2     23,205,084
Calibration 3     23,338,223
ssj_ops@calibrated=23,271,653
100% 99.5% 23,271,653 23,150,702
90% 88.9% 20,944,488 20,694,382
80% 79.1% 18,617,323 18,414,235
70% 68.3% 16,290,157 15,886,943
60% 59.9% 13,962,992 13,944,832
50% 49.8% 11,635,827 11,588,706
40% 40.0% 9,308,661 9,309,875
30% 30.0% 6,981,496 6,979,692
20% 20.0% 4,654,331 4,653,737
10% 10.0% 2,327,165 2,326,516
Active Idle   0 0
Graph of results
See the Host Performance Report for additional details.