A Microservice Architecture for Online Mobile App Optimization

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1 A Microservice Architecture for Online Mobile App Optimization Yixue Zhao, Nenad Medvidović University of Southern California May 25, 2019

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2 Background

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3 Background Auxiliary e.g., empirical study Detection e.g., security vulnerabilities Optimization e.g., bug repair

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4 Background Limited Optimization Techniques • 48 papers (mobile domain) accepted at ICSE (2014 – 2018) • only 7 optimization techniques • Limited evaluation e.g., 5 apps

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5 Motivation • Angry users want better apps • Developers want better apps • Researchers need to propose more optimization techniques to address real needs

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6 Common Challenges • “It’s hard to use other research tools” • “They don’t have documentation” • “It’s so time-consuming to find subject apps” • “It’s hard to debug a research tool on real apps without domain-specific knowledge” • …

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7 Problem Summary • Reusability issue of existing tools • Gap between researchers and developers

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8 Our Solution • Reusability issue of existing tools MAOMAO (reference architecture) • Gap between researchers and developers Online Repository

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9 • Case Study • MAOMAO • MAOMAO Repository Outline

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10 Case Study: PALOMA • Leveraging Program Analysis to Reduce User- Perceived Latency in Mobile Applications (ICSE 2018) Static Analysis App Instrumentation Optimized App

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11 PALOMA Workflow Static Analysis App Instrumenter Optimized App String Analyzer Callback Analyzer Original App Proxy Runtime Prefetching Origin Server offline online

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12 PALOMA Reuse Opportunities String Analyzer Callback Analyzer App Instrumenter Violist (FSE 2015) Gator (ICSE 2015) PALOMA Proxy e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch()

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13 PALOMA Reuse Opportunities String Analyzer Callback Analyzer App Instrumenter Violist (FSE 2015) Gator (ICSE 2015) PALOMA Proxy e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch()

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14 PALOMA Reuse Opportunities String Analyzer Callback Analyzer App Instrumenter Violist (FSE 2015) Gator (ICSE 2015) PALOMA Proxy e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch()

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15 PALOMA Reuse Opportunities String Analyzer Callback Analyzer App Instrumenter PALOMA Proxy Violist (FSE 2015) Gator (ICSE 2015) e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch()

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16 PALOMA Reuse Opportunities String Analyzer Callback Analyzer App Instrumenter PALOMA Proxy Violist (FSE 2015) Gator (ICSE 2015) e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch()

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17 Can we do it better? String Analyzer Callback Analyzer App Instrumenter PALOMA Proxy Violist (FSE 2015) Gator (ICSE 2015) Reflection e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch()

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18 Can we do it better? String Analyzer Callback Analyzer App Instrumenter PALOMA Proxy Violist (FSE 2015) Gator (ICSE 2015) e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch()

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19 Let’s do it better! String Analyzer Callback Analyzer App Instrumenter PALOMA Proxy Violist (FSE 2015) Gator (ICSE 2015) Static Analyzer e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch()

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20 String Analyzer Callback Analyzer App Instrumenter PALOMA Proxy Violist (FSE 2015) Gator (ICSE 2015) Static Analyzer Static Analyzer e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch() Let’s do it better!

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21 String Analyzer Callback Analyzer App Instrumenter PALOMA Proxy Violist (FSE 2015) Gator (ICSE 2015) Static Analyzer Static Analyzer App Instrumenter e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch() Let’s do it better!

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22 String Analyzer Callback Analyzer App Instrumenter PALOMA Proxy Violist (FSE 2015) Gator (ICSE 2015) e.g., Insert_TriggerPrefetch() e.g., TriggerPrefetch() Static Analyzer Static Analyzer App Instrumenter Backend Service Let’s do it better!

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23 • A Microservice Architecture for Online Mobile App Optimization • Light-weight, black-box microservices • Easy to reuse and adopt • Suitable for heterogeneous mobile domain e.g., different languages, technologies Let’s do it better with MAOMAO

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24 MAOMAO Reference Architecture Original App Instrumented App Ofﬂine App Development Static Analyzer Backend Service Instrumented OS Online App Runtime Original OS Intermediate Representer Device Monitor OS Instrumenter App Instrumenter

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25 MAOMAO Reference Architecture Original App Instrumented App Ofﬂine App Development Static Analyzer Backend Service Instrumented OS Online App Runtime Original OS Intermediate Representer Device Monitor OS Instrumenter App Instrumenter

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26 Original App Instrumented App Ofﬂine App Development Static Analyzer Backend Service Instrumented OS Online App Runtime Original OS Intermediate Representer Device Monitor OS Instrumenter App Instrumenter MAOMAO Reference Architecture

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27 Original App Instrumented App Ofﬂine App Development Static Analyzer Backend Service Instrumented OS Online App Runtime Original OS Intermediate Representer Device Monitor OS Instrumenter App Instrumenter MAOMAO Reference Architecture

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28 Original App Instrumented App Ofﬂine App Development Static Analyzer Backend Service Instrumented OS Online App Runtime Original OS Intermediate Representer Device Monitor OS Instrumenter App Instrumenter MAOMAO Reference Architecture

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29 MAOMAO Reference Architecture Original App Instrumented App Ofﬂine App Development Static Analyzer Backend Service Instrumented OS Online App Runtime Original OS Intermediate Representer Device Monitor OS Instrumenter App Instrumenter

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30 Other Examples New Techniques?

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31 MAOMAO Benefits • Loosely-coupled modular design • Easy to update individual components • Easy to reuse for researchers • Easy to adopt by developers • … Better Apps!

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32 MAOMAO Repository Researchers App Developers Open Repository Microservice Pool Service Request Pool Benchmark Pool Test Script Pool Testing Environment Testing Engine Portal test results

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33 MAOMAO Repository Open Science Community

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34 Our Vision We need you!

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35 Want to know more? J Contact: Yixue Zhao ([email protected]) Follow-up Paper: Mobile-App Analysis and Instrumentation Techniques Reimagined with DECREE (ICSE 2019, Doctoral Symposium) Follow-up Talk: May 30 Thursday, 12:57pm, Agora lobby (ROSE Festival)

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38 Legend Intermediate Representation MAOMAO’s Components Program Point Conﬁguration REST API API Documentation General Data Original App Instrumented App Ofﬂine App Development Static Analyzer Backend Service Instrumented OS Online App Runtime Original OS Intermediate Representer Device Monitor OS Instrumenter App Instrumenter