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Building A Longhorn-Ready Mobile PC
Burt ParkerTechnology EvangelistMobile Platforms Divisiontpc_bizd @ microsoft.comMicrosoft Corporation
Session OutlineSession Outline
Mobile PCs Tomorrow
Battery and Power Technology
Processors, Chipsets, and Features
Graphic Subsystems
Mobile Performance with Windows codenamed “Longhorn”
Data and System Security
Summary and Call To Action
Relevant Mobile Platforms Presentations
Contact Us
Mobile PCs TomorrowMobile PCs TomorrowWhat are they?What are they?
Getting Personal and more MobileSmaller, lighter, more ergonomic
Carried and Used all day
Always connected
Natural Input (pen and voice)
Shedding Vestigial CompromisesLarger, more powerful, impressive feature list
Performance rivaling modern desktops
Full-range media experience
Mobile PC ChallengesMobile PC Challenges
Battery Life
Battery Life
graphicsgraphics
Battery And Power Technology Battery And Power Technology Original Equipment Manufacturer (OEM) askOriginal Equipment Manufacturer (OEM) ask
Refine the Traditional DetailsFully Implement ACPI methods and Mechanisms
Plug current leaks on motherboards and peripherals
Be smart about power plane control and separation
Modify backlight intensity to suit ambient light levels
Examine Your Battery StrategiesBalance Big Batteries versus Extender Batteries
Look at Warm Swapping and Fast Charging
Look to Technology (Future)Fuel Cells: Available now, some airline concerns and heat
Micro-Turbines: Technically viable, noise and heat issues
Photovoltaic solutions: Viable today, outdoors only
Battery And Power TechnologyBattery And Power TechnologyAdvanced Configuration and Power Interface (ACPI) ▲Advanced Configuration and Power Interface (ACPI) ▲
Windows codenamed “Longhorn” Requires ACPINon-ACPI HALs are not included in Longhorn
No Support: APM, EISA, Hardware Profiles, ISAPnP
Retired Processor Drivers: amdk6.sys, p3.sysIntel Mobile P-III SpeedStep supported by ACPI 2.0
Hybrid Sleep Combines Standby and HibernateUsers just put the PC to ‘Sleep’
System saves hibernate file, then enters Standby
Normally resumes from memory (fast)
If Standby loses power, the system resumes from the hibernate image, without data loss or error
Eliminates S0 transition on S4 doze timeout
Battery And Power Technology Battery And Power Technology User Interface (UI)User Interface (UI)
Improved Management UIBattery Meter is clear, current, and more informative
Power Management Plans are Far More Intuitive, Useful, and Accessible
Simplified Shutdown UIMove to appliance-like Power button
Promote Sleep as default off state
Battery And Power Tech Battery And Power Tech Sleep reliabilitySleep reliability
Reducing Component Vetoes and Queries
See “Longhorn Power Management Update”
Failures Identified by the Sleep Diagnostic Agent (as of March 15, 2005)
Unknown Failure 11.31%
Hiberfile Generation Failure19.32%
Bugcheck or Hang during Sleep /
Resume Transition 25.72%
Failure to Resume from BIOS
6.11%
Component Vetoes 37.54%
Battery And Power TechBattery And Power Tech Windows DirectWindows Direct
Windows Direct is Microsoft’s means to quickly resume directly to Windows-based applications
Example Launch to Application ScenariosE.g., “media” button quickly starts a media player or shell from any non-working state
E.g., Offers quick system startup from Standby, Hibernate, or ‘Off’ (S5)
Mobile Users are Increasingly looking to carry and use their Mobile PC just as they do a Cell Phone or Portable Media Player
Implies expectations of near-instant system access
Features most resembling mobile appliance features inherit the greatest user expectation for ‘instant on’
Processors, Chipsets, And FeaturesProcessors, Chipsets, And Features
ProcessorsWe finally have true Mobile CPU solutions
Faster and more power-efficient main CPU offerings
Faster and more efficient auxiliary processors
Multiple Vendors: Intel, AMD, VIA, ARM Partners, etc.
Breaking the “GHz = Performance” Myth!
ChipsetsFull featured and practical legacy reduction choices
Integrated graphics has improved…must continue to
Varied choices allow design teams to better manage price and performance decisions according to the targeted purchaser and/or user, and the intended usage
Graphic SubsystemsGraphic Subsystems
Probably #1 Longhorn Mobile PC Question!
This is not as tricky as it seemsModern Mobile PC graphics subsystems burn off as many Watts as the primary CPU!
Changing: Performance != frames per second
Integrated versus Discrete Graphic subsystems
Performance == Fast, Power-managed GPUs!
The Longhorn InfluenceHelp ‘nudge’ the bottom performers up
Mid-to-High performance solutions are on target now
Users want a full and effective Windows experience!
Graphic Subsystems Graphic Subsystems ClearTypeClearType
You Built It, They Bought It: Fully Utilize ItLCD Pixels have a finite resolution, why utilize just 1/3?
ClearType, a Microsoft Technology, is Built into the Operating System (OS)
Enhance Further through the Power Toy and Web ‘Tuner’
www.microsoft.com/typography/ClearTypePowerToy.mspx
http://www.microsoft.com/typography/cleartype/tuner/1.htm
Mobile Performance With LonghornMobile Performance With LonghornLonghorn readyLonghorn ready
Will Longhorn Run On Mobile PC Hardware? Most of today’s Mobile PC Hardware runs Longhorn
More capable Hardware runs Longhorn better, or runs more of Longhorn’s advanced features, especially graphics
The graphics experience varies per system capabilityThe Operating System will adjust the presentation complexity
As with any OS, you need comparable hardware to get a comparable experience, Mobile or stationary
For the full-on, best possible Longhorn experience, assume Mobile PC hardware similar to this
CPU – Mid to Performance class overall, nearer the high end of today’s Mobile CPUs
RAM – 512 MB or better, for both desktops and mobile
Mobile Performance With LonghornMobile Performance With LonghornGauging itGauging it
WinSAT is Your Key!ALPHA version of this tool is in the WinHEC Longhorn buildTuning and enhancements during the Beta-2 cycle
Key Longhorn Platform Feature PerformanceUnderstand performance differences between modelsMeasure differences between configuration alternatives(I.e., Catch mis-configured DRAM using the memory tests)
WinSAT Assesses a System’sGraphics, Memory, Processor, and StorageAlso Subsystem Attributes, Features, and Capabilities
Data And System SecurityData And System Security
Data and System SecurityAbsolutely critical to Enterprise solutions
Increasingly critical to Home Users
PhysicalHybrid ATA Hard Drive Solutions
Heads parked and Spindle stopped = lower crash probability
Saves 90% of disk drive power = approx 10% of power budget
Faster boot and resume times = Save disk spin up time
Malicious (or Capricious)Taxicabs EAT laptops and Tablet PCs!
Hardware guarantees on the motherboardSee also Secure Startup session, for details
Summary And Call To ActionSummary And Call To Action
Utilize the tools and advances to meet customers’ rising expectations
We all need to focus on addressing our customer’s wants and needs
Build the best Mobile PC systems ever seen, today…and tomorrow, together, we will build Mobile PCs running the full Longhorn experience to eclipse them!
Perfect the details and THRILL your customers!
Relevant Mobile Platforms PresentationsRelevant Mobile Platforms Presentations
TWDT05008Speech And Pen Entry And Control
TWDT05004Auxiliary Display Platform For Longhorn
TWDT05008Full Client Usability For The Highly Mobile Market
TWAR05001Longhorn Power Management Update
TWAR05002System Performance Assessment Tools For Windows Longhorn
Relevant Links Relevant Links
Mobile and Tablet PC Business [email protected]
Tablet PC Websitehttp://www.microsoft.com/windowsxp/tabletpc
Windows Hardware and Driver Central: http://www.microsoft.com/whdc
PnP, Power Management, WMI: http://www.microsoft.com/whdc/system/pnppwr/default.aspx
Community ResourcesCommunity Resources
Windows Hardware and Driver Central (WHDC)www.microsoft.com/whdc/default.mspx
Technical Communitieswww.microsoft.com/communities/products/default.mspx
Non-Microsoft Community Siteswww.microsoft.com/communities/related/default.mspx
Microsoft Public Newsgroupswww.microsoft.com/communities/newsgroups
Technical Chats and Webcastswww.microsoft.com/communities/chats/default.mspxwww.microsoft.com/webcasts
Microsoft Blogswww.microsoft.com/communities/blogs
© 2005 Microsoft Corporation. All rights reserved.This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.
