Dell Inc. PowerEdge R770 SPECpower_ssj2008 = 21,029 overall ssj_ops/watt
Test Sponsor: Dell Inc. SPEC License #: 6573 Test Method: Single Node
Tested By: Dell Inc. Test Location: Round Rock, TX, USA Test Date: Mar 11, 2025
Hardware Availability: Mar-2025 Software Availability: Oct-2024 Publication: Mar 26, 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% 99.8% 22,815,824 943 24,200
90% 90.0% 20,573,668 896 22,973
80% 80.0% 18,275,559 769 23,779
70% 70.0% 15,999,259 674 23,728
60% 60.0% 13,707,130 590 23,231
50% 50.0% 11,423,709 514 22,239
40% 39.9% 9,129,584 441 20,700
30% 30.0% 6,856,849 382 17,949
20% 20.0% 4,573,809 332 13,767
10% 10.0% 2,292,108 278 8,241
Active Idle 0 157 0
∑ssj_ops / ∑power = 21,029
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: Dell Inc.
Model: PowerEdge R770
Form Factor: 2U
CPU Name: Intel Xeon 6787P 2.0 GHz (Intel Turbo Boost Technology up to 3.80 GHz)
CPU Characteristics: 86-Core, 2.00 GHz, 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: 32 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): 256
# and size of DIMM: 16 x 16 GB
Memory Details: 16GB 1Rx8 PC5-6400; slots Slots A1-8, B1-B8 populated.
Power Supply Quantity and Rating (W): 1 x 1500
Power Supply Details: 1500W 60mm Titanium - mixed mode, Dell p/n GRD17
Disk Drive: 1 x Dell EC NVMe ISE 7450 RI M.2 80 480GB, Dell p/n 3H1F4
Disk Controller: BOSS controller card, Dell p/n CMFVP
# and type of Network Interface Cards (NICs) Installed: 1 x 1GbE BT 4P Broadcom OCP 3.0, Dell p/n M2PYY
NICs Enabled in Firmware / OS / Connected: 4/4/1
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 Standard
OS Version: Version 21H2(OS Build 20348.1251)
Filesystem: NTFS
JVM Vendor: Oracle Corporation
JVM Version: Oracle Java HotSpot(TM) 64-Bit Server VM (build 17.0.13+10-LTS-268, mixed mode)
JVM Command-line Options: -server -Xms1300m -Xmx1300m -Xmn1100m -XX:+UseBiasedLocking -XX:+UseParallelGC -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:InlineSmallCode=1500 -XX:UseAVX=1 -XX:AutoBoxCacheMax=20000 -XX:+OptimizeFill -XX:+AggressiveHeap -XX:FreqInlineSize=2500 -XX:CompileThresholdScaling=220
JVM Affinity: start /NODE [0-7] /AFFINITY [0xF,0xF0,0xF00,0xF000,0xF0000,0xF00000,0xF000000,0xF0000000,0xF00000000,0xF000000000,0xF0000000000]
JVM Instances: 86
JVM Initial Heap (MB): 1300
JVM Maximum Heap (MB): 1300
JVM Address Bits: 64
Boot Firmware Version: 0.5.62
Management Firmware Version: 1.20.25.00
Workload Version: SSJ 1.2.10
Director Location: Controller
Other Software: None
Boot Firmware Settings
Management Firmware Settings
See SUT Notes
System Under Test Notes
Controller System
Hardware
Hardware Vendor: Dell Inc
Model: PowerEdge R450
CPU Description: 2 x Intel Xeon Silver 4310 CPU, 2.10 GHz
Memory amount (GB): 64
Software
Operating System (OS): Microsoft Windows Server 2022 Datacenter
JVM Vendor: Oracle Corporation
JVM Version: Hotspot(TM) Client VM, version 15.0.2+7 (build 15.0.2+7, mixed mode)
CCS Version: 1.2.6
Measurement Devices
Power Analyzer pwr1
Hardware Vendor: Yokogawa Meters and Instruments Corporation
Model: WT310E
Serial Number: T11733387
Connectivity: RS-232
Input Connection: Default
Metrology Institute: NIST
Accredited by: TesCom
Calibration Label: T11733387
Date of Calibration: 24-Jul-2025
PTDaemon Host System: same as CCS
PTDaemon Host OS: same as CCS
PTDaemon Version: 1.11.1-462c978e-20240907
Setup Description: Connected to power supply
Temperature Sensor temp1
Hardware Vendor: Digi International Inc.
Model: Watchport/H
Driver Version: 5.10.26.0
Connectivity: USB
PTDaemon Host System: same as CCS
PTDaemon Host OS: same as CCS
Setup Description: 25 mm in front of SUT main airflow intake
Notes
None
Aggregate Electrical and Environmental Data
Target Load Average Active Power (W) Minimum Ambient Temperature (°C)
100% 943 21.2
90% 896 21.2
80% 769 21.2
70% 674 21.2
60% 590 21.2
50% 514 21.2
40% 441 21.2
30% 382 21.2
20% 332 21.1
10% 278 21.1
Active Idle 157 21.1
Line Standard Minimum Temperature (°C) Elevation (m)
208V / 60 Hz / 1 phase / 2 wires 21.1 255
Aggregate Performance Data
Target Load Actual Load ssj_ops
Target Actual
Calibration 1     23,437,063
Calibration 2     22,846,464
Calibration 3     22,867,749
ssj_ops@calibrated=22,857,107
100% 99.8% 22,857,107 22,815,824
90% 90.0% 20,571,396 20,573,668
80% 80.0% 18,285,685 18,275,559
70% 70.0% 15,999,975 15,999,259
60% 60.0% 13,714,264 13,707,130
50% 50.0% 11,428,553 11,423,709
40% 39.9% 9,142,843 9,129,584
30% 30.0% 6,857,132 6,856,849
20% 20.0% 4,571,421 4,573,809
10% 10.0% 2,285,711 2,292,108
Active Idle   0 0
Graph of results