TI OMAP4 平台上的Android4.0：智能多核性能提升
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收藏 1.99MB PDF 举报 "Ti OMAP4 android4.0 datasheet - 介绍TI OMAP4平台在Android4.0(Ice Cream Sandwich)系统下的性能与功能，强调其强大的处理能力，并提供了针对OMAP4平台的板级支持包(A4O4)，以实现快速上市时间。文档概述了Android4.0的主要软件架构变化和性能提升，以及如何利用OMAP4平台的独特平衡多核架构实现高效能低功耗计算。"
TI OMAP4是德州仪器(Texas Instruments, TI)推出的一款高性能应用处理器，专为Android4.0(Ice Cream Sandwich)设计。这个数据表详细阐述了Android4.0在OMAP4平台上运行时所带来的新用户体验和功能，通过利用智能多核解决方案，为设备提供强大的处理能力。
Android4.0（ICS）不仅带来了众多激动人心的新功能，同时也引入了重要的软件架构改变和性能提升。这些改变增加了软件的复杂性，但同时也提升了用户体验和系统的整体性能。随着代码行数的增加，Android4.0设定了新的标准，应对日益复杂的软件需求。
TI为了确保基于OMAP4平台的设备能够快速进入市场，提供了OMAP4 Board Support Package (A4O4)，该包已在OMAP4平台上进行了集成和验证。这样可以保证由OMAP4处理器驱动的设备具有一个稳定且优化的软件基础。
OMAP4架构以其独特的不对称智能多核设计而著称。Android4.0引入了几项新组件，这些组件旨在充分利用OMAP4平台的这种特性，实现高效的并行计算，同时保持最低的功率消耗。这些组件与ICS中的新图形和视频合成架构完全整合，进一步提升了处理器的效能。
除了双核对称多处理外，Android4.0还添加了新的组件来优化资源分配，使得多个核心能够协同工作，从而在保持低功耗的同时，最大化处理性能。这种软硬件的和谐统一，使开发者能够创建出既强大又节能的应用，为用户带来流畅的体验。
这份数据表是理解TI OMAP4处理器如何在Android4.0环境下发挥优势的关键参考资料，对于开发者和硬件制造商来说，它提供了实现高效、低能耗移动设备设计的重要信息。
Android 4.0 on the OMAP™ 4 platform
2
Figure
Architecture Overview (Selected Components)
OMAP
4460
User Interface (UI) experience and
expected with Android 4.0. For a high
best user experience, it is important to keep the composition rate of the
UI
layers very close to the refresh r
many surfaces are involved in the composition. This eliminates any
noticeable lag in UI responsiveness
As mobile devices running Android are increasingly moving to support
displays with higher resolutions and
composition workload on the GPU is increasing as a result. At the same
time, more of the UI content generation has been moved from the MPU
to the GPU with Android 4.0 through the use of the OpenGL
application progr
benefit that can be achieved if some of the composition work is offloaded
from the GPU. The
acceleration capabilities needed to offload much of the compos
workload normally handled by the G
scenarios.
In
Android 4.0
layers to the final display has changed significantly
composition resources
the GPU for composition of UI layers ensures combined output including
3D objects and video, but using the GPU f
costly in both power and performance.
New Graphics and
Video Composition
Architecture
Android 4.0 on the OMAP™ 4 platform
Figure
1 -
Android 4.0 OMAP 4 Board Support Package (A4O4 BSP)
Architecture Overview (Selected Components)
4460
mobile processors are
uniquely suited to
User Interface (UI) experience and
powerful
graphics performance
expected with Android 4.0. For a high
-
performance UI that provides the
best user experience, it is important to keep the composition rate of the
layers very close to the refresh r
ate of the display no matter how
many surfaces are involved in the composition. This eliminates any
noticeable lag in UI responsiveness
when used.
As mobile devices running Android are increasingly moving to support
displays with higher resolutions and
multiple simultaneous displays, the
composition workload on the GPU is increasing as a result. At the same
time, more of the UI content generation has been moved from the MPU
to the GPU with Android 4.0 through the use of the OpenGL
application progr
amming interfaces (APIs)
. All of this points to the
benefit that can be achieved if some of the composition work is offloaded
from the GPU. The
OMAP4
460 processor has the extended composition
acceleration capabilities needed to offload much of the compos
workload normally handled by the G
PU in most UI and v
scenarios.
Android 4.0
, the composition and rendering of graphics and video
layers to the final display has changed significantly
composition resources
provided by the OMAP4460
architecture
the GPU for composition of UI layers ensures combined output including
3D objects and video, but using the GPU f
or all composition is often
costly in both power and performance.
Nov 2011
Android 4.0 OMAP 4 Board Support Package (A4O4 BSP)
uniquely suited to
provide the smooth
graphics performance
performance UI that provides the
best user experience, it is important to keep the composition rate of the
ate of the display no matter how
many surfaces are involved in the composition. This eliminates any
As mobile devices running Android are increasingly moving to support
multiple simultaneous displays, the
composition workload on the GPU is increasing as a result. At the same
time, more of the UI content generation has been moved from the MPU
to the GPU with Android 4.0 through the use of the OpenGL
® ES
. All of this points to the
benefit that can be achieved if some of the composition work is offloaded
460 processor has the extended composition
acceleration capabilities needed to offload much of the compos
ition
PU in most UI and v
ideo display
, the composition and rendering of graphics and video
layers to the final display has changed significantly
to leverage hardware
architecture
. Using
the GPU for composition of UI layers ensures combined output including
or all composition is often
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