energy efficiency of mobile clients in cloud computingnokia research center energy efficiency of...
TRANSCRIPT
![Page 1: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/1.jpg)
Nokia Research Center
Energy efficiency of mobile clients in cloud computing
Antti P. Miettinen, Jukka K. NurminenNokia Research Center, Helsinki, Finland22.6.2010
1
![Page 2: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/2.jpg)
Nokia Research Center
Mobile cloud computing
Remote processing
Data format? Bitmaps? Vector graphics?
Local processing
![Page 3: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/3.jpg)
Nokia Research Center
Balance: computing versus communication
When is itfeasible to
move to cloud?
communicationcomputing
![Page 4: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/4.jpg)
Nokia Research Center
Computing: what is the energy cost?
Largevariation
![Page 5: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/5.jpg)
Nokia Research Center
Computing: current mobile devices
High performance
Energy efficiency
![Page 6: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/6.jpg)
Nokia Research Center
Computing: dynamic power management
DVFS = Dynamic Voltage and Frequency Scaling
P ~ V2f
V ~ f
t ~ 1/fP P
t t
E = Pt
![Page 7: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/7.jpg)
Nokia Research Center
Computing: effect of dynamic power management
![Page 8: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/8.jpg)
Nokia Research Center
Communication: effect of bit-rate and technology
![Page 9: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/9.jpg)
Nokia Research Center
Communication: effect of traffic pattern
![Page 10: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/10.jpg)
Nokia Research Center
Communication: effect of DPM
![Page 11: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/11.jpg)
Nokia Research Center
Computing & communication: Effect of DPM
High performance
Energy efficiency
?
![Page 12: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/12.jpg)
Nokia Research Center
The balance – roughly
1000
cycles
1000 cyclesversus1 byte
1
byte
Cost of computing is reasonably stable
Cost of communication has large variance
![Page 13: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/13.jpg)
Nokia Research Center
Computational intensity
Workload Cycles/byte
gzip ASCII compress 330
bzip2 ASCII compress 1080
html2text wikipedia.org 2100
html2text en.wikipedia.org 5900
pdftotext N900 datasheet 960
pdftotext E72 datasheet 8900
![Page 14: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/14.jpg)
Nokia Research Center
In practice (PDF viewer)
Energy can be saved
Performance can beimproved
![Page 15: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/15.jpg)
Nokia Research Center
Fruitful area for further research
• New computationally intensive applications for mobile devices?• Technology development?
• Radio bit-rates versus computing efficiency?• Tools for managing the complexity?
• Energy aware development tools• Energy aware middle-ware?• Energy optimized protocols for thin clients?• Server side technologies for optimizing client energy efficiency?
![Page 16: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/16.jpg)
Nokia Research Center
Thank You
16
![Page 17: Energy efficiency of mobile clients in cloud computingNokia Research Center Energy efficiency of mobile clients in cloud computing Antti P. Miettinen, Jukka K. Nurminen Nokia Research](https://reader034.vdocuments.us/reader034/viewer/2022042406/5f20e07d053cba41b8740140/html5/thumbnails/17.jpg)
Nokia Research Center
Coarse grain estimation can be simple