the green lab - [01-b] case study presentation

Vrije Universiteit Amsterdam

Efficient Database queries:

-25%

Efficient multi-threading:

-8%


Efficient Database Queries

[1] Procaccianti G., Fernandez H., Lago P. "Empirical Evaluation of Two Best-Practices for Energy-Efficient Software Development". Accepted for publication in Journal of System and Software, 2016. Pre-print available on: http://dare.ubvu.vu.nl/handle/1871/54184

https://www.google.com/url?q=http://dare.ubvu.vu.nl/handle/1871/54184&sa=D&ust=1477923771886000&usg=AFQjCNGPR5L7fnKKCP2jYeWRDRj1408gtA


Efficient Database Queries

25% Energy savings


3% Power savings

https://www.google.com/url?q=http://dare.ubvu.vu.nl/handle/1871/54184&sa=D&ust=1477923772302000&usg=AFQjCNH7NwTKyk0CSstLUFplmiECXU4wfQ



-25%


-8%


Efficient Multithreading


https://www.google.com/url?q=http://dare.ubvu.vu.nl/handle/1871/54184&sa=D&ust=1477923772366000&usg=AFQjCNHSXrn1s5pY00bxdpEZx5MCGJMEsA


Efficient Multithreading

8.2% Power savings 8.4% Energy savings


https://www.google.com/url?q=http://dare.ubvu.vu.nl/handle/1871/54184&sa=D&ust=1477923772764000&usg=AFQjCNG0i8o-Vy7lelH_ojthSMuMEED7AQ



-25%


-8%

Efficient ORM strategies:

-60%


●


●○

●○○○ …


● LAMP stack (Linux, Apache, MySQL, PHP)

● Databases

● Virtual Machines

Case presentation by Wouter Diesveld on Thursday 15th



-25%


-8%

Efficient Web pages:

-46%

Efficient ORM strategies:

-60%


● Evaluate energy impact of Content Management Systems○ E.g. Wordpress vs. Static web pages

● Experiment: compare 2 different VMs○ different software stack○ Same content


28% Power savings


46% Energy savings


●○

●○○


● Wordpress, PHP

● Load Testing of Web Apps

● Virtual Machines

Case presentation by Patrick de Ridder on Thursday 15th


Progressive web apps in Android


Software built with web technologies that is accessible via a mobile browser


Traditional mobile web apps:

● do not work offline● no background activities

○ e.g., geofencing

● poor access to system APIs○ push notifications, camera, contacts, etc.

● poor distribution (no app store)● …

Vrije Universiteit Amsterdamhttps://developer.mozilla.org/en-US/Apps/Progressive

Vrije Universiteit Amsterdamhttps://developers.google.com/web/showcase/


PWAs have been advertised as:

● performance boosters● network savers● providers of better UX● ….

What about their impact on energy consumption?


● Different levels of “PWA-ility”

● Network conditions

● Browser types/versions (it can be even a desktop browser)

● Caching strategies

● Page load time

● CPU usage

● Memory consumption

● Number of network requests

● Energy consumption

+ any other aspects you want to measure...


● HTML5, CSS3, and JavaScript

● Ajax-based communication for the web

● Android development environment

● Shell scripting

Introductory material available here: https://developers.google.com/web/fundamentals

https://www.google.com/url?q=https://developers.google.com/web/fundamentals&sa=D&ust=1477923781295000&usg=AFQjCNFvNHAPtSOK3Rx6mdyg5qWH0INFdw

https://www.google.com/url?q=https://developers.google.com/web/fundamentals&sa=D&ust=1477923781296000&usg=AFQjCNH7iuYdI39BcOvDs_c1Ko1RPC_ZXg


Procedure:

● Self-enroll on BlackBoard

● Fill this form: https://goo.gl/forms/b2nBcTpbS2ZOajOI2

Teams have to be finalized before next Thursday (Sept 8th)!

https://www.google.com/url?q=https://goo.gl/forms/b2nBcTpbS2ZOajOI2&sa=D&ust=1477923782499000&usg=AFQjCNHLma0rb7w-W1KLdFn5XmjYM018sA


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the green lab - [01-b] case study presentation

Education