Mobile Code Offloading from Concept to Practice, and Beyond

Huber Floreshuber@ut.ee

HKUST, Hong Kong, 2014

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Outline

• Background (Concept)• Problem statement (Practice)• Solutions (Beyond)• Conclusions

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Background

• What is code offloading?– Type of binding between mobile and cloud– Move a computational task from one place to

another • What is the purpose?

– What, when, where, how?– Release the smartphone from intensive processing– Increase performance of the mobile apps, in terms

of responsiveness

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Background

• Code offloading frameworks– Method – Thread – Class

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Background

• Which are the components of a code offloading architecture?– Mobile

• Code profiler• System profilers• Decision engine

– Cloud-based surrogate• Server

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Background

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What is the problem?

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Problem statement

• Code offloading outcome is mostly negative– Partial answer to what, when, where, and how

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Problem statement

• Inaccurate code profiling • Low effectiveness to detect resource intensive

code

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Problem statement

• Scalability of the system

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Problem statement

• Dynamic configurationCloud ecosystem

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Problem statement

• Integration complexity– Code annotations– Introduce the mechanisms within the mobile

platform

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Can code offloading be utilized in practice to sustain power-hungry applications?

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Solutions

• Massive data analysis with cloud• Mobile crowdsourcing (implicit)• Exploitation of the cloud surrogate

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Evidence-aware Mobile Code Offloading

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Evidence-aware Mobile Code Offloading

• Characterization of the offloading process

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Evidence-aware Mobile Code Offloading

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Evidence-aware Mobile Code Offloading

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Conclusions and future directions

• The characterization of the offloading process can enhance the outcome of code invocation.

• Increasing the acceleration of the offloading process is the next reasonable step to overcome a negative impact.

• Offloading systems powered by SOA– Energy as a service?

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