apidays Paris 2022 - ecoCode mobile in a nutshell, Olivier Le Goaër, ecocode.io

apidays Paris 2022 - APIs the next 10 years: Software, Society, Sovereignty, Sustainability
December 14, 15 & 16, 2022

ecoCode mobile in a nutshell
Olivier Le Goaër, Green Software Researcher, ecocode.io & Associate Professor in Computer Science at Pau University
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Transcript

1. December 15, 2022
   In a nutshell
   Apidays Paris
   Olivier Le Goaër
   

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2. 2023 SERIES OF EVENT
   New York
   May 16&17
   Australia
   October 11&12
   Singapore
   April 12&13
   Helsinki & North
   June 5&6
   Paris
   SEPTEMBER
   London
   November
   15&16
   June 28-30
   SILICON VALLEY
   March 14&15
   Dubai & Middle East
   February 22&23
   

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3. Apidays Paris December 15, 2022
   Associate Professor in Computer Science (France)
   STEE College (Sciences & Technologies for Energy and Environment)
   Research in the field of Software Engineering
   How to build “greener” software?
   Teaching Android programming
   Online course (+130k views)
   Olivier Le Goaër
   Who I am?
   

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4. Apidays Paris December 15, 2022
   Ecological
   impact
   Direct Indirect
   10% (FR)
   25%
   90% (FR)
   75%
   Terminals
   (...more devices!!!)
   Power
   Consumption
   eq. CO2, water, abiotic resources
   Context
   Loosely adapted from “iNUM : impacts environnementaux du numérique en France” (Jan. 2021)
   🔋Li-ion battery wear
   

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5. Apidays Paris December 15, 2022
   Insights
   Green code extends clean code with ecological concerns
   “ ”
   Carbon debt adds to the technical debt
   “ ”
   Software programs should have an eco-score too
   “ ”
   

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6. Apidays Paris December 15, 2022
   World-class solution to
   improve code quality
   Motivation
   No guidelines on how to
   write energy-friendly apps
   

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7. Apidays Paris December 15, 2022
   Energy code smells for Android
   Research Papers Dev Interviews
   API Reference Documentation
   

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8. Apidays Paris December 15, 2022
   http://olegoaer.perso.univ-pau.fr/android-energy-smells/
   # OPTIMIZED API (2)
   Fused Location, Bluetooth Low-Energy
   # LEAKAGE (3)
   Media Leak, Sensor Leak, Everlasting Service
   # BOTTLENECK (4)
   Internet In The Loop, Wifi Multicast Lock, Uncompressed
   Data Transmission, Uncached Data Reception
   # SOBRIETY (10)
   Dark UI, Day Night Mode, Brightness Override, Thrifty
   Geoloc, Thrifty BLE, Thrifty Motion Sensor, Thrifty
   Notification, Vibration-free, Torch-free, High Frame Rate
   # IDLENESS (6)
   Keep Screen On, Keep CPU On, Durable Wake Lock, Rigid
   Alarm, Continuous Rendering, Keep Voice Awake
   # POWER (4)
   Ignore Battery Optimizations, Companion in background,
   Charge Awareness, Save Mode Awareness
   # BATCH (3)
   Service@Boot-time, Sensor Coalesce, Job Coalesce
   # RELEASE (8)
   Supported Version Range, Same dependencies, Duplicate
   dependencies, Fat app, Clear Cache, Disable Obfuscation,
   Shrink Resources, Convert to WebP
   Catalog of energy code smells
   

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9. Apidays Paris December 15, 2022
   Focus on Keep CPU On
   PowerManager powerManager = (PowerManager)
   getSystemService(POWER_SERVICE);
   WakeLock wakeLock =
   powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
   "MyApp::MyWakelockTag");
   wakeLock.acquire();
   

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10. Apidays Paris December 15, 2022
    ● Statically detectable
    ○ Few green best practices resist to this “great filter”
    ● Broader detection scope
    ○ A native android project mixes Java, XML, File System, Gradle*
    ● Good and bad smells
    ○ Albeit code quality tools are only focused on bad smells
    ● Revamped User Interface
    ○ Green code merits its own user experience
    *Groovy script
    Highlights
    

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11. Apidays Paris December 15, 2022
    ● Commitment to digital commons
    ○ Released as OSS in January 2022 (hosted by Green IT assoc.)
    ○ https://github.com/green-code-initiative/ecoCode-mobile
    ● Attract early-adopters
    ○ Hackathon in Paris in June 2022 (in the presence of the VP of Products @
    SonarSource)
    ○ Next edition planned in March 2023
    Open Source Software
    new
    

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12. Apidays Paris December 15, 2022
    Currently Soon
    Technical guidelines
    

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13. Apidays Paris December 15, 2022
    Screenshots
    

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14. Apidays Paris December 15, 2022
    ● From academic
    ○ EcoAndroid [Ribeiro et al., 2021]
    ○ E-Debitum [Maia et al., 2020]
    ○ xAL [Fatimaa et al., 2020]
    ○ aDoctor [Iannone et al., 2020]
    ○ Green Android Lint [Le Goaer, 2019]
    ● From industry
    ○ EcoSonar [Accenture, 2022]
    ○ Greensight Sonar [Capgemini, 2022]
    Related works
    

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15. Apidays Paris December 15, 2022
    core
    web mobile AI cloud …
    Roadmap
    

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16. Apidays Paris December 15, 2022
    DevFest Perros-Guirec (oct. 2022)
    Extended talk
    

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17. Apidays Paris December 15, 2022
    (ekko, our mascotte)
    Live demo?
    

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