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1
How to minimize the power
consumption of your app
Rick Schwartz, Senior Product Manager
Qualcomm Technologies, Inc.
3
Mobile trends
4
Mobile trends resulting in increased power consumption
High end processor speeds increased from 1.5 GHz to 2.3 GHz
over a 16 month period
The number of cores in mobile devices have
increased 3 of the past 4 years
Mobile displays are getting larger and higher in resolution
− HD (1280x720) > FHD (1920x1080) > QHD (2560x1440)
Some mobile devices now designed to work 24/7
− Tracking location
− Listening for voice commands
− Integrated step counters track movement
A single mobile processor can replace several discrete chips
Source: Qualcomm Technologies, Inc. data
5
Processor speed and number of cores has changed dramatically
Processor specs for flagship Android devices by year
Number
of Cores
3
8
7
6
5
4
3
2
1
2.5
2
1.5
1
0.5
0
Frequency
(GHz)
Cores
Frequency
80% increase in processor speeds
2012 2013 2014
Source: Qualcomm Technologies, Inc. data
2012 – Samsung Galaxy S III - Snapdragon S4 SoC featuring a dual-core 1.5 GHz;
2013 – Samsung Galaxy S4 - Qualcomm Snapdragon 600 APQ8064AB quad-core 1.9 GHz;
2014 – Samsung Galaxy S5 - Qualcomm Snapdragon 801 (8974) 2.5 GHz quad-core
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资源评论
- wony_02132014-11-21比较好,对我有帮助
- whvip20102015-04-29非常好的一份文档,让你知道如何优化APP
- testcc52014-11-13含金量不大,比较通用基础的东西。 说白了是高通用来推销芯片方案的。
Qualcomm_Developer
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