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What if the End of the Worldwas due to the Web?
Study and Support Groupon Eco-design for Software
24/06/14
User Group for Eco-design of SoftwareEco-design and best practices
Experimentations and measures
Articles, Publications et Events
Greencodelab-challenge.orgWebEnergyArchive.com
What is Green Code Lab?
Coming soon !Greencodelab.com
© Green Code Lab - 2013 - Licence CC BY:SA
Constats sur les TICs
Intensité en ressource d’une puce électronique 16.000:1 MIPS
… 54:1 pour une voiture
75 Mt DEEE en 2014... 24 kg / français / an - 5 kg collectés
TIC responsable de 2% des émissions de C0² mondiale
… comme les transports aériens
Source: EcoInfo
« Software is getting slower more rapidly than hardware becomes faster ».
Wirth’s law
Bloatware
© Green Code Lab - 2013 - Licence CC BY:SA
Good programming practice to reduce social and environmental impacts Avoid obsolescence Reduce consumption Limit exclusions
Green Patterns are consistent with performance But not all the time
What is a Green Pattern?
© Green Code Lab - 2013 - Licence CC BY:SA
Do we need all this?
The impor tance of the need expression
© Green Code Lab - 2013 - Licence CC BY:SA
Example of a pattern that takes into account the context
Power
© Green Code Lab - 2013 - Licence CC BY:SA
Example taking into account the context
© Green Code Lab - 2013 - Licence CC BY:SA
Web Energy Archive
Information plateform
Energymodel
© Green Code Lab - 2013 - Licence CC BY:SA
© Green Code Lab - 2013 - Licence CC BY:SA
Memory consumption (Mo)
© Green Code Lab - 2013 - Licence CC BY:SA
On 500 websites :
Obser vation on websites measured by WEA
© Green Code Lab - 2013 - Licence CC BY:SA
Browsers
© Green Code Lab - 2013 - Licence CC BY:SA
Top 10 of most vis ited websites
© Green Code Lab - 2013 - Licence CC BY:SA
Analysis of a heavy page
1,000,000 pages per day
Meaning for the client side
200 MWh per year
equivalent to 30 t eq CO2
Server side estimation
20 MWh per year
GREEN CODE LAB CHALLENGE
48h non-stop to eco-design a web application
200 students and professionals40 teams
15 schools4 countries
1 trip
« the off » of the Challenge20 conferences
Several events for pro
© Green Code Lab - 2013 - Licence CC BY:SA
[email protected]://greencodelab.fr
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