SPECpower_ssj2008 Copyright (C) 2007-2025 Standard Performance Evaluation Corporation ESLIMKOREA ES2404-EW SPECpower_ssj2008 = 7,123 overall ssj_ops/watt Test Sponsor: Telecommunications Technology Association SPEC License #: 83 Tested By: Telecommunications Technology Association Test Location: TTA, Seongnam-city, Korea Test Date: Nov 27, 2025 Publication: Dec 18, 2025 Hardware Availability: Jul-2025 Software Availability: Sep-2025 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% | 100.0% | 4,406,166 | 454 | 9,712 90% | 89.9% | 3,960,675 | 417 | 9,505 80% | 80.0% | 3,522,097 | 370 | 9,527 70% | 70.0% | 3,082,185 | 333 | 9,255 60% | 59.9% | 2,639,782 | 310 | 8,503 50% | 50.0% | 2,203,156 | 289 | 7,627 40% | 40.0% | 1,763,901 | 274 | 6,442 30% | 30.0% | 1,323,175 | 261 | 5,077 20% | 20.0% | 880,841 | 247 | 3,569 10% | 10.0% | 441,748 | 230 | 1,923 Active Idle | 0 | 218 | 0 sum of ssj_ops / sum of power = | 7,123 System Under Test Set: 'sut' Set Identifier: sut Set Description: System Under Test # of Identical Nodes: 1 Comment: SUT HARDWARE Hardware Vendor: ESLIMKOREA Model: ES2404-EW Form Factor: 4U CPU Name: Intel Xeon Gold 5520+ CPU Characteristics: 28 Core, 2.20 GHz, 52.5 MB L3 Cache (Turbo Boost Technology up to 4.00 GHz) CPU Frequency (MHz): 2300 CPU(s) Enabled: 56 cores, 2 chips, 28 cores/chip Hardware Threads: 112 (2 / core) CPU(s) Orderable: 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: 53760 KB I+D on chip per chip Other Cache: None Memory Amount (GB): 512 # and size of DIMM: 8 x 64 GB Memory Details: 8 x 64GB(M393A8G40MB2-CVF, 2Rx4 PC4-23466U-R; slots DIMM_P0_A0, DIMM_P0_B0, DIMM_P0_D0, DIMM_P0_E0, DIMM_P1_G0, DIMM_P1_H0, DIMM_P1_J0, DIMM_P1_K0 are populated) Power Supply Quantity and Rating 2 x 1200 (W): Power Supply Details: Delta DPS-1200AB-4 E Rev.S0F Disk Drive: 1 x 480 GB SATA SSD (P/N: INTEL SSDSC2KB480G8) Disk Controller: None # and type of Network Interface 2 x Intel Corporation I210 Gigabit Network Cards (NICs) Installed: Connection (Onboard) NICs Enabled in Firmware / OS / 1/1/1 Connected: Network Speed (Mbit): 10000 Keyboard: None Mouse: None Monitor: None Optical Drives: No Other Hardware: None SOFTWARE Power Management: Enabled Operating System (OS): Red Hat Enterprise Linux 9.5 OS Version: 5.14.0-503.11.1.el9_5.x86_64 Filesystem: xfs JVM Vendor: Oracle JVM Version: java version "25" 2025-09-16 LTS; Java(TM) SE Runtime Environment (build 25+37-LTS-3491); Java HotSpot(TM) 64-Bit Server VM (build 25+37-LTS-3491, mixed mode, sharing) JVM Command-line Options: -server -Xms2g -Xmx2g -Xmn1g -XX:+UseParallelGC -XX:ParallelGCThreads=28 JVM Affinity: numactl --physcpubind=[0-64] --localalloc JVM Instances: 112 JVM Initial Heap (MB): 256 JVM Maximum Heap (MB): 2048 JVM Address Bits: 64 Boot Firmware Version: American Megatrends Inc. KM-H620-103B-SA2 (Release Date: 02/21/2019; BIOS Revision: 5.12) Management Firmware Version: Firmware Revision 2.00 (IPMI Version 2.0) Workload Version: SSJ 1.2.10 Director Location: Controller Other Software: None Boot Firmware Settings * AVX License Pre-Grant Override: Disable * AVX P1: Nominal * Activate SST-BF: Disable * Configure SST-BF: Enable * SpeedStep (Pstates): Enable * EIST PSD Function: HW_ALL * Boot performance mode: Max Efficient * Energy Efficient Turbo: Enable * Turbo Mode: Disable * CPU Flex Ratio Override: Disable * CPU C1 auto demotion: Enable * CPU C1 auto undemotion: Enable * CPU C6 report: Enable * Enhanced Halt State (C1E): Enable - OS ACPI Cx: ACPI C3 * Hardware P-States: Native Mode * EPP Enable: Enable * Hyper-Threading [ALL]: Enable * Hardware Prefetcher: Enable * Adjacent Cache Prefetch: Enable * DCU Streamer Prefetcher: Enable * DCU IP Prefetcher: Enable * LLC Prefetch: Disable * Homeless Prefetch: Auto * Extended APIC: Enable * Enable Intel(R) TXT: Disable * VMX: Enable * Enable SMX: Enable * AES-NI: Enable Management Firmware Settings None System Under Test Notes * Benchmark started via ssh. * Each JVM instance was bound to 2 logical processors * CPU governor: powersave * tuned-adm profile: powersave * The system ROM used for this result contains Intel microcode version 0x21000230 for the Intel Xeon Gold 5520+ processor. Controller System HARDWARE Hardware Vendor: Nettars tech Model: NM-R221-K800 CPU Description: Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz Memory amount (GB): 256 SOFTWARE Operating System (OS): Red Hat Enterprise Linux Server release 7.8 (Maipo) JVM Vendor: Oracle Corporation JVM Version: 25.252-b09 CCS Version: 1.2.6 Measurement Devices POWER ANALYZER PWR1 Hardware Vendor: YOKOGAWA Model: WT310E Serial Number: T12811450 Connectivity: USB Input Connection: Default Metrology Institute: Standard Calibration Technology Institute Co., LTD Accredited by: KOLAS (Korea Laboratory Accreditation Scheme) Calibration Label: SC2508-25011-1 Date of Calibration: 12-Aug-2025 PTDaemon Host System: same as CCS PTDaemon Host OS: same as CCS PTDaemon Version: 1.11.1-69286632-20240907 Setup Description: Connected to PSU 1 TEMPERATURE SENSOR TEMP1 Hardware Vendor: iButtonLink Model: LinkUSBi + T-Probe Driver Version: FTDI USB Serial Device 1.0 Connectivity: USB(UART) 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% | 454 | 22.5 90% | 417 | 22.6 80% | 370 | 22.3 70% | 333 | 22.2 60% | 310 | 22.2 50% | 289 | 22.3 40% | 274 | 22.6 30% | 261 | 22.5 20% | 247 | 22.6 10% | 230 | 22.5 Active Idle | 218 | 22.7 Line Standard | Minimum | Elevation (m) | Temperature | | (Degrees C) | ------------------------- | --------------- | --------------- 220V / 60 Hz / 2 phase / | 22.2 | 57 1 wire | | See the Power/Temperature Details Report (power_ssj2008-20251130-01547-power.txt) for additional details. Aggregate Performance Data Target Load | Actual Load | ssj_ops | | Target | Actual ----------------- | ----------------- | ----------------- | ----------------- Calibration 1 | | | 4,417,949 Calibration 2 | | | 4,404,675 Calibration 3 | | | 4,404,573 ssj_ops@calibrated=4,404,624 100% | 100.0% | 4,404,624 | 4,406,166 90% | 89.9% | 3,964,162 | 3,960,675 80% | 80.0% | 3,523,699 | 3,522,097 70% | 70.0% | 3,083,237 | 3,082,185 60% | 59.9% | 2,642,774 | 2,639,782 50% | 50.0% | 2,202,312 | 2,203,156 40% | 40.0% | 1,761,850 | 1,763,901 30% | 30.0% | 1,321,387 | 1,323,175 20% | 20.0% | 880,925 | 880,841 10% | 10.0% | 440,462 | 441,748 Active Idle | | 0 | 0 See the Host Performance Report (power_ssj2008-20251130-01547.localhost.txt) for additional details. Copyright (C) 2007-2025 Standard Performance Evaluation Corporation http://www.spec.org - info@spec.org SPECpower_ssj2008 Reporter Version: [SSJ 1.2.10, May 9, 2012]