TDP and ACP for energy estimation in processors

In the green software community we see very often that people use the TDP of the processor as a metric to estimate how much energy the CPU will consume for a specific workload. [...]

- by Arne Tarara

SPECPower model with XGBoost open sourced

A detailed blog article is yet to come, but for everyone who follows our blog only and not our repositories we wanted to highlight that we open sourced the new XGBoost variant of the SPECPower estimation model for cloud workloads on github. [...]

- by Arne Tarara


We recently had a team of aspiring UX researches at Green Coding Berlin that made a research project on how the Green Metrics Tool can be used. This is a guest article with their results [...]

- by Arne Tarara

Power measurement on macOS

Last week we have been on the SDIA event for sustainble software and held a workshop on measuring the energy digital products. We presented approchaes where you measure the energy either with tool like Scaphandre or the Green Metrics Tool as well as approaches for restricted environments like the cloud. [...]

- by Arne Tarara

Estimating Cloud Energy Consumption with a Linear Model - Part 1

This arcticle is part of a multi-part series. Be sure to check out / stay tuned for the other parts! A big goal for us here is at how to measure the energy/carbon use of cloud services. [...]

- by Dan Mateas

Reproducing the Blauer Engel für Software measurements for Okular

In the past we have joined the Workshop around the Blauer Engel (with the Öko Institut e.V. as the host this year) and also some of the regular meetings from the KDE Eco Team. [...]

- by Arne Tarara

Trying out Firefox 104 energy measurements

Mozilla released a new version 104 this week which sports a power measurement feature. This immediately sparked our interest and we wanted to give it some test run against a containerized browser in our Green Metrics Tool. [...]

- by Arne Tarara

Updating the DC measurements

In my last blog post I have written about how we finally completed the DC measurement reporter for our Green Metrics Tool. In the last days we have looked at reducing the variance of the ATX powerlanes and finding out if swapping out the resistors for more stable current measurement resistors can improve the measurement. [...]

- by Arne Tarara

DC energy measurements for software

We finally got our DC measurement setup ready … sadly around one month later than expected. If you wanna see first results go here: Wordpress sample measurement Stress sample measurement If you wann get the details of our journey, why we are integrating it into our tool, some tech specs and the future outlook on when we have the AC measurement ready, then read on :) [...]

- by Arne Tarara

CO2 Formulas and Case Studies

Starting this month we will be releasing articles in a regular fashion about insights into energy use of specifc software tools or architectures. In order to lay a foundation to follow these articles we have created at a CO2 Formulas page, where you can find all the relevant formulas how to calculate the energy use of software. [...]

- by Arne Tarara