SPECpower_ssj2008 Copyright (C) 2007-2026 Standard Performance Evaluation Corporation Supermicro SuperServer AS-1115SV-WTNRT SPECpower_ssj2008 = 23,723 overall ssj_ops/watt Test Sponsor: Supermicro SPEC License #: 1176 Tested By: Supermicro Test Location: San Jose, CA, USA Test Date: Apr 29, 2026 Publication: May 22, 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% | 99.6% | 9,902,428 | 308 | 32,151 90% | 90.0% | 8,950,358 | 291 | 30,749 80% | 80.0% | 7,951,691 | 271 | 29,349 70% | 70.0% | 6,957,038 | 245 | 28,426 60% | 60.0% | 5,961,948 | 226 | 26,439 50% | 50.0% | 4,972,643 | 209 | 23,802 40% | 39.9% | 3,967,208 | 192 | 20,640 30% | 30.0% | 2,980,698 | 176 | 16,956 20% | 20.0% | 1,987,580 | 158 | 12,546 10% | 10.0% | 996,510 | 139 | 7,149 Active Idle | 0 | 87.7 | 0 sum of ssj_ops / sum of power = | 23,723 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 8535P 2.0 GHz CPU Characteristics: 64-Core, 2.0 GHz, 256MB L3 Cache CPU Frequency (MHz): 2000 CPU(s) Enabled: 64 cores, 1 chip, 64 cores/chip Hardware Threads: 128 (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: 256 MB I+D on chip per chip, 32 MB shared / 8 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 20348.4529) Filesystem: NTFS JVM Vendor: OpenJDK JVM Version: OpenJDK 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] /AFFINITY [0x3, 0xC, 0x30, 0xC0, 0x300, 0xC00, 0x3000, 0xC000 ] JVM Instances: 64 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: KB5071547 Boot Firmware Settings * ACPI SRAT L3 Cache As NUMA Domain= Enable * Power Profile= Balanced Core Mode * DRAM Target Speed= 4800 * GMI Folding= Enable * L2 Stream HW Prefetcher= Disable * L2 Up/Down Prefetcher= Disable * Boost Fmax enable= Manual * Boost Fmax= 2800 * 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 128 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 8535P 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% | 308 | 21.0 90% | 291 | 21.0 80% | 271 | 21.0 70% | 245 | 20.9 60% | 226 | 20.9 50% | 209 | 20.9 40% | 192 | 20.9 30% | 176 | 20.8 20% | 158 | 20.9 10% | 139 | 20.8 Active Idle | 87.7 | 20.9 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 208V / 60 Hz / 1 phase / | 20.8 | 132 2 wires | | See the Power/Temperature Details Report (power_ssj2008-20260504-01574-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 9,990,575 Calibration 2 | | | 9,938,470 Calibration 3 | | | 9,941,280 ssj_ops@calibrated=9,939,875 100% | 99.6% | 9,939,875 | 9,902,428 90% | 90.0% | 8,945,887 | 8,950,358 80% | 80.0% | 7,951,900 | 7,951,691 70% | 70.0% | 6,957,912 | 6,957,038 60% | 60.0% | 5,963,925 | 5,961,948 50% | 50.0% | 4,969,937 | 4,972,643 40% | 39.9% | 3,975,950 | 3,967,208 30% | 30.0% | 2,981,962 | 2,980,698 20% | 20.0% | 1,987,975 | 1,987,580 10% | 10.0% | 993,987 | 996,510 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20260504-01574.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]