Fsas Technologies Inc. PRIMERGY RX2540 M8 SPECpower_ssj2008 = 23,290 overall ssj_ops/watt
Test Sponsor: Fujitsu SPEC License #: 19 Test Method: Single Node
Tested By: Fsas Technologies Inc. Test Location: Kawasaki, Kanagawa, Japan Test Date: Sep 21, 2025
Hardware Availability: Oct-2025 Software Availability: Jun-2025 Publication: Oct 21, 2025
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% 100.0% 24,196,615 929 26,048
90% 90.0% 21,779,183 844 25,791
80% 80.0% 19,368,131 703 27,569
70% 70.0% 16,940,566 607 27,929
60% 60.0% 14,510,345 532 27,253
50% 50.0% 12,094,792 475 25,461
40% 40.0% 9,672,391 418 23,135
30% 30.0% 7,262,668 373 19,475
20% 20.0% 4,845,304 328 14,752
10% 10.0% 2,417,475 278 8,683
Active Idle 0 227 0
∑ssj_ops / ∑power = 23,290
Graph of results
System Under Test
Set: 'RX2540M8'
Set Identifier: RX2540M8
Set Description: System Under Test
# of Identical Nodes: 1
Comment: Single Node
Hardware
Hardware Vendor: Fsas Technologies Inc.
Model: PRIMERGY RX2540 M8
Form Factor: 2U
CPU Name: Intel Xeon 6787P
CPU Characteristics: 86-Core, 2.00 GHz, 336 MB 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 on chip per chip
Other Cache: None
Memory Amount (GB): 512
# and size of DIMM: 16 x 32768 MB
Memory Details: 16 x 32 GB 2Rx8 PC5-6400B-R; slots 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1J, 1K, 1L, 1M, 1N, 1P, 1Q, 1R populated
Power Supply Quantity and Rating (W): 1 x 1600
Power Supply Details: 1600W titanium PSU, PY-PU165
Disk Drive: 1 x SSD PCIe M.2 480GB PY-MF48PN
Disk Controller: Integrated NVMe Controller
# and type of Network Interface Cards (NICs) Installed: 1 x 1 Gbit/s (RJ45) Intel i210 on Motherboard
NICs Enabled in Firmware / OS / Connected: 1/1/1
Network Speed (Mbit): 1000
Keyboard: None
Mouse: None
Monitor: None
Optical Drives: No
Other Hardware: M.2 Carrier Module
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 17.0.12+8-LTS-286, mixed mode, sharing)
JVM Command-line Options: -server -Xmn1825m -Xms1995m -Xmx1995m -XX:LargePageSizeInBytes=2m -XX:+UseLargePages -XX:AllocatePrefetchDistance=512 -XX:AllocatePrefetchLines=4 -XX:InlineSmallCode=3900 -XX:FreqInlineSize=2500 -XX:UseAVX=1 -XX:+AggressiveHeap -XX:ParallelGCThreads=2 -XX:+UseParallelGC -XX:+UseBiasedLocking -XX:AutoBoxCacheMax=20000 -XX:+OptimizeFill -XX:CompileThresholdScaling=220 -XX:MaxInlineSize=270
JVM Affinity: for each physicalCore{numactl -C physicalCore, physicalCore + 172}
JVM Instances: 172
JVM Initial Heap (MB): 1995
JVM Maximum Heap (MB): 1995
JVM Address Bits: 64
Boot Firmware Version: R1.1.0
Management Firmware Version: 3.03S
Workload Version: SSJ 1.2.10
Director Location: Controller
Other Software: None
Boot Firmware Settings
Management Firmware Settings
System Under Test Notes
Controller System
Hardware
Hardware Vendor: Fsas Technologies Inc.
Model: PRIMERGY RX2530 M2
CPU Description: 2 x Intel Xeon E5-2643 v4
Memory amount (GB): 256
Software
Operating System (OS): Microsoft Windows Server 2019 Standard
JVM Vendor: Oracle Corporation
JVM Version: Oracle Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode), version 1.8.0_211
CCS Version: 1.2.6
Measurement Devices
Power Analyzer pwr1
Hardware Vendor: Hioki
Model: PW3336
Serial Number: 170134584
Connectivity: RS-232
Input Connection: Default
Metrology Institute: AIST (National Institute of Advanced Science and Technology)
Accredited by: Kyosai Technos Co.,Ltd.
Calibration Label: CY253000033
Date of Calibration: 04-Mar-2025
PTDaemon Host System: same as CCS
PTDaemon Host OS: same as CCS
PTDaemon Version: 1.11.1-462c978e-20240907
Setup Description: Connected to PSU 1
Temperature Sensor temp1
Hardware Vendor: Digi International Inc.
Model: Watchport/H
Driver Version: Watchport Virtual Port 5.70.105.0
Connectivity: USB
PTDaemon Host System: same as CCS
PTDaemon Host OS: same as CCS
Setup Description: 5 mm in front of SUT main air intake
Notes
None
Aggregate Electrical and Environmental Data
Target Load Average Active Power (W) Minimum Ambient Temperature (°C)
100% 929 20.5
90% 844 20.5
80% 703 20.5
70% 607 20.4
60% 532 20.4
50% 475 20.4
40% 418 20.4
30% 373 20.4
20% 328 20.4
10% 278 20.4
Active Idle 227 20.4
Line Standard Minimum Temperature (°C) Elevation (m)
200V / 50 Hz / 1 phase / 2 wires 20.4 15
See the Power/Temperature Details Report for additional details.
Aggregate Performance Data
Target Load Actual Load ssj_ops
Target Actual
Calibration 1     21,343,214
Calibration 2     24,160,711
Calibration 3     24,239,751
ssj_ops@calibrated=24,200,231
100% 100.0% 24,200,231 24,196,615
90% 90.0% 21,780,208 21,779,183
80% 80.0% 19,360,185 19,368,131
70% 70.0% 16,940,162 16,940,566
60% 60.0% 14,520,139 14,510,345
50% 50.0% 12,100,116 12,094,792
40% 40.0% 9,680,092 9,672,391
30% 30.0% 7,260,069 7,262,668
20% 20.0% 4,840,046 4,845,304
10% 10.0% 2,420,023 2,417,475
Active Idle   0 0
Graph of results
See the Host Performance Report for additional details.