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Standard Performance Evaluation Corporation

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The SERT™ suite is providing a first order of approximation of server efficiency across a broad range of application environments. It is designed to be economical and easier to use by utilizing a comprehensive graphical user interface (GUI) and predetermined sets of tuning parameters. The SERT suite has been implemented and tested for a variety of 64-bit processors, operating systems, and JVMs. It is scalable and tested up to a maximum of 8 processor sockets and a maximum of 64 nodes. The server under test (SUT) may be a single stand-alone server or a multi-node set of servers. A multi-node SUT will consist of server nodes that cannot run independently of shared infrastructure such as a backplane, power-supplies, fans, or other elements. These shared infrastructure systems are commonly known as blade servers or multi-node servers.

The main body of code is in written in Java in order to lower the burden of cross-platform support. The framework is designed to accommodate other program languages as well. A series of different workload characteristics are implemented to demonstrate the effectiveness of different server sizes and configurations. The workload also utilized SPECís concept of multiple load levels and details can be found in the design document. Regulatory programs are designed to foster continuous improvement, with thresholds for success rising as the industry progresses. The SERT suite is designed to match this paradigm by implementing a quick adoption process of new computing technologies.

The right balance between high repeatability of the results, high sub-system coverage, and low resource allocation is desirable and resulted in a run time of around 2 Ĺ hours. The results output, including the SERT suite metric, are generated in both machine- and human-readable forms, enabling automatic submission to government-sponsored certification programs as well as both summary and detail reports for use by potential customers.

The SERT Suite V1.1.1 is the latest version supported by the U.S. EPA ENERGY STAR for Enterprise Servers V2 program. The SERT Suite V2.0.1 is currently adopted for their v3 program.


March 18, 2019: SPEC's SERT suite 2.0.2 Released
This version includes the PTDaemon tool version 1.9.0 and a fix for AIX large memory configurations.

September 17, 2018: U.S. EPA adopts SPEC's SERT suite 2.0.1
The United States Department of Energy's (DOE) Environmental Protection Agency (EPA) released the final version of the "ENERGY STAR Version 3.0 Computer Servers Program Requirements" which defines the Active State Efficiency Thresholds that will determine ENERGY STAR eligibility effective June 17, 2019. The new thresholds have been determined using data collected by running the SPEC SERT suite.


Technical documentation for the SERT suite
Technical and support documents, run and reporting rules, etc.

JVM Options Guide for 2.0
User Guide 
Simplified Chinese User Guide 
Run and Reporting Rules
Result File Field Descriptions 
Effeciency Score Metric 

Technical Design Documents:   
          Design Document
          PTDaemon Tool Design

Power and Performance Methodology
Accepted Measurement Devices


Technical support requiring involvement of specialists is done by volunteers from our member institutions (see member list). Please do not send us any proprietary information in your queries.

Support Forums for the SERT suite, the Chauffeur™ WDK and the SPEC PTDaemon™ tool
Power Measurement Setup Guide

Component Update Process (Draft)

In the quickly evolving world of computer servers, software updates are needed to enable support for new hardware and software platforms, to address software bugs, or to enhance usability.

However, to accurately compare the SERT suite results, consistency in elements which affect the measurement, is required. Additionally, when the SERT suite is implemented, it is imperative that changes which affect result comparability are not introduced for the duration of a government regulatory program.

To accommodate these requirements, the following test plans (draft) have been developed to maintain comparability of measurement results while allowing updates.

The SERT Suite Component Update Process (draft)


March 18th, 2019: the SERT suite 2.0.2 released

For details on the update process, visit the the SERT suite update page