SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Supermicro SuperServer AS-1115SV-WTNRT SPECpower_ssj2008 = 24,408 overall ssj_ops/watt Test Sponsor: Supermicro SPEC License #: 1176 Tested By: Supermicro Test Location: San Jose, CA, USA Test Date: Apr 20, 2026 Publication: May 19, 2026 Hardware Availability: May-2026 Software Availability: May-2026 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% | 99.7% | 11,291,445 | 335 | 33,748 90% | 90.0% | 10,196,278 | 316 | 32,279 80% | 80.0% | 9,065,282 | 296 | 30,674 70% | 70.0% | 7,931,948 | 275 | 28,803 60% | 60.1% | 6,809,651 | 256 | 26,638 50% | 50.0% | 5,659,447 | 237 | 23,908 40% | 40.1% | 4,537,660 | 216 | 20,962 30% | 30.0% | 3,393,947 | 198 | 17,113 20% | 20.0% | 2,264,235 | 177 | 12,765 10% | 10.0% | 1,138,532 | 156 | 7,275 Active Idle | 0 | 89.6 | 0 sum of ssj_ops / sum of power = | 24,408 System Under Test Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 1 Comment: None HARDWARE Hardware Vendor: Supermicro Model: SuperServer AS-1115SV-WTNRT Form Factor: 1U CPU Name: AMD EPYC 8635P 1.6 GHz CPU Characteristics: 84-Core, 1.6 GHz, 384MB L3 Cache CPU Frequency (MHz): 1600 CPU(s) Enabled: 84 cores, 1 chip, 84 cores/chip Hardware Threads: 168 (2 / core) CPU(s) Orderable: 1 chip Primary Cache: 32 KB I + 48 KB D on chip per core Secondary Cache: 1 MB I+D on chip per core Tertiary Cache: 384 MB I+D on chip per chip, 32 MB shared / 7 cores Other Cache: None Memory Amount (GB): 96 # and size of DIMM: 6 x 16 GB Memory Details: 6 x 16GB 1Rx8 PC5-6400; CPU1 A1,B1,C1,D1,E1,F1 populated. Power Supply Quantity and Rating 1 x 860 (W): Power Supply Details: P/N: PWS-861A-1R Disk Drive: 1 x 1TB Samsung SSD 980 PRO Disk Controller: Embedded SATA Controller # and type of Network Interface 1 x Dual LAN BCM 57416 10GbE BaseT Ethernet Cards (NICs) Installed: Controller NICs Enabled in Firmware / OS / 2/2/1 Connected: 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): Microsoft Windows Server 2022 Datacenter OS Version: Version 21H2 (OS Build 20348.1668) Filesystem: NTFS JVM Vendor: OpenJDK JVM Version: Java HotSpot(TM) 64-Bit Server VM (build 17.0.18, mixed mode, sharing) JVM Command-line Options: -server -Xmn750m -Xms850m -Xmx850m -XX:ParallelGCThreads=2 -XX:+UseLargePages -XX:LargePageSizeInBytes=2m -XX:UseAVX=1 -XX:AutoBoxCacheMax=20000 -XX:+UseParallelGC -XX:+OptimizeFill -XX:+AggressiveHeap -XX:FreqInlineSize=2500 -XX:InlineSmallCode=3900 -XX:+UseBiasedLocking -XX:AllocatePrefetchDistance=256 -XX:AllocatePrefetchLines=16 JVM Affinity: start/NODE[0,1,2,3,4,5,6,7,8,9,10,11] /AFFINITY [0x3, 0xC, 0x30, 0xC0, 0x300, 0xC00, 0x3000 ] JVM Instances: 84 JVM Initial Heap (MB): 850 JVM Maximum Heap (MB): 850 JVM Address Bits: 64 Boot Firmware Version: 2.0 Management Firmware Version: 01.08.04 Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings * ACPI SRAT L3 Cache As NUMA Domain= Enable * Power Profile= Balanced Core Mode * DRAM Target Speed= 5600 * GMI Folding= Enable * L2 Stream HW Prefetcher= Disable * L2 Up/Down Prefetcher= Disable * Boost Fmax enable= Manual * Boost Fmax= 2300 * APBDIS= 1 * DFPstate= DFP2 * PCIE Target Speed= Gen1 * ASPM Support= Enable Management Firmware Settings Fan Mode: Standard Speed System Under Test Notes * SPECpower_ssj.props input.load_level.number_warehouses set to 168 due to a known inconsistency in processor reporting with this Java version. * The test was started via Remote Desktop * JVM Settings: * Each JVM instance was affinitized to two threads. * Using the local security settings console, "lock pages in memory" was enabled for the user running the benchmark. * Windows Balanced Power Plan Settings: * Turn off the display : 1min * Turn off hard disk after: 1min * PCI Express: Link State Power Management = Maximum power saving * Minimum Processor State = 0% * Using Windows PowerShell, set the following powercfg properties: * Powercfg /setacvalueindex scheme_current sub_processor PERFEPP 100 * powercfg /setactive scheme_current * The system ROM used for this result contains AMD AGESA version 6221000B00000000 for the AMD EPYC 8635P processor Controller System HARDWARE Hardware Vendor: HP Model: HP EliteBook 745 G6 CPU Description: AMD Ryzen 7 PRO 3700U Memory amount (GB): 32 SOFTWARE Operating System (OS): Microsoft Windows Server 2019 Standard JVM Vendor: OpenJDK JVM Version: OpenJDK 64-Bit Server VM 18.9 (build 11.0.2+9, mixed mode) CCS Version: 1.2.6 Measurement Devices POWER ANALYZER PWR1 Hardware Vendor: YOKOGAWA, Inc. Model: WT310E Serial Number: C2ZG04126V Connectivity: USB2 Input Connection: Default Metrology Institute: NML (National Measurement Laboratory) Accredited by: Omnio Calibration Lab. Co., Ltd. Calibration Label: T120104 Date of Calibration: 02-Feb-2026 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: iButtonLink, Inc. Model: LinkUSBi + T-Probe Driver Version: FTDI USB Serial Device 1.0 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 None Aggregate Electrical and Environmental Data Target Load | Average | Minimum | Active | Ambient | Power (W) | Temperature | | (Degrees C) ----------- | ---------- | ------------- 100% | 335 | 21.6 90% | 316 | 21.9 80% | 296 | 22.1 70% | 275 | 21.9 60% | 256 | 21.8 50% | 237 | 21.8 40% | 216 | 22.1 30% | 198 | 21.9 20% | 177 | 22.1 10% | 156 | 22.0 Active Idle | 89.6 | 22.5 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 208V / 60 Hz / 1 phase / | 21.6 | 132 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20260421-01571-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 11,390,276 Calibration 2 | | | 11,326,855 Calibration 3 | | | 11,330,799 ssj_ops@calibrated=11,328,827 100% | 99.7% | 11,328,827 | 11,291,445 90% | 90.0% | 10,195,944 | 10,196,278 80% | 80.0% | 9,063,062 | 9,065,282 70% | 70.0% | 7,930,179 | 7,931,948 60% | 60.1% | 6,797,296 | 6,809,651 50% | 50.0% | 5,664,414 | 5,659,447 40% | 40.1% | 4,531,531 | 4,537,660 30% | 30.0% | 3,398,648 | 3,393,947 20% | 20.0% | 2,265,765 | 2,264,235 10% | 10.0% | 1,132,883 | 1,138,532 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20260421-01571.WIN-PUJJIRV73M3.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]