How Green is your Software?

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Want to know how green is your Software? Intel® Energy Checker and Yokogawa can help you! The Intel® Energy Checker SDK provides software developers a simple way to measure the energy efficiency (greenness) of their Software by exposing the necessary and basic measurements made by Yokogawa’s highly accurate and reliable Power Analyzers.

How Green I Your Software

Figure 1.Sample output of pl_gui_monitor utility - In this screenshot, a private version of POVRay* ( was instrumented using the Intel® Energy Checker SDK to compute and expose dynamically it's energy efficiency metrics (pixels rendered per joule consumed and joules consumed per pixel rendered) while rendering a 3D scene (by Gilles Tran © 1993-2009

The Intel® Energy Checker API helps Software developers to easily instrument their software to expose metrics of "useful work" done by the software. For example, the amount of useful work done by a video serving application is number of frames processed, for a mail server application the useful amount of work done may be number of emails processed. The core Intel® Energy Checker API consists of five basic functions. These functions include Open, Re-open, Read, Write, and Close. The SDK comes with utilities to measure the energy consumed by the software on Intel server platforms using power analyzers. Power analyzers supported in this SDK include Yokogawa's WT210, WT230, WT500, WT300, WT3000, WT300E, & WT3000E. To learn more about Yokogawa Power Analyzers, please click here.

How Green I Your Software 3

Figure 2.Picture by Jamel Tayeb, Intel® Corporation, all right reserved. Power Analyzers shown in the picture were provided by Yokogawa.

To learn more about The Intel ® Energy Checker SDK, please click here. The software is also royalty-free licensed and available for download at no cost.

Related Products & Solutions

Digital Power Meter WT300

The WT300 offers high performance and high reliability in a compact package with excellent price value, making it ideal for multiple applications from R&D to manufacturing test. It is the fifth generation of Yokogawa's value series power meter, and the world's best selling power meter.

Precision Power Analyzer WT3000

With 0.02% accuracy and 1MHz bandwidth, the WT3000 delivers where the highest precision measurements are required. It is the industry standard for R&D work on inverters, motor drives, lighting systems and electronic ballasts, UPS systems, aircraft power, transformer testing, and other power conversion devices.

WT210/WT230 Digital Power Meters

Superior cost performance and compact size make the entry level WT200 Series Digital Power Meters ideal for manufacturing and basic power measurement applications. Offered with One to Three Elements, with Basic Power Accuracy of 0.1% and 100kHz Bandwidth.

WT3000E - High Accuracy

  • High Accuracy Electrical & Mechanical Efficiency of Inverters and Motors in EV and HEV
  • IEC Harmonics (IEC61000-3-2 & IEC61000-3-12); Voltage Fluctuations and Flicker (IEC61000-3-3 & IEC61000-3-11)


WT300E - Economy

  • Standby Power Measurements, Energy Star®, SPEC Power® and IEC62301/EN50564
  • Evaluation and Testing of Batteries, Home Appliances and Uninterruptible Power Supplies (UPS)


WT500 - Mid Range

  • Power and Harmonic (THD) Measurements with Independent Range Controls
  • Efficiency measurements of AC/DC or DC/AC Inverters & Motors