1. Tech Ed North America 2010
11/15/2018 4:14 AM
Required Slide
SESSION CODE: WCL306
Fundamentals in Windows Applications for Developers: Graphics, Power, Services, and Profiling
Yochay Kiriaty
Senior Technical Evangelist
Microsoft Corporation
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

2. Microsoft Confidential

4. Improved Fundamentals in Windows 7
Decrease
Increase
Memory Reference set, Graphics
Disk I/O Registry Reads, Indexer
Power DVD Playback, Panel, Timers
Speed Faster Boot, Device Ready
Responsiveness Start menu, Taskbar
Scale 256 cores

5. Building A Great Windows 7 Applications
Differentiate
Create new experiences on Windows 7
EXPERIENCE
Become a first class Windows 7 citizen
Optimize
Product passes Microsoft quality tests
Compatible

6. Wednseday June 9th, Room 356, 8 am
Optimize for User Experience Get the Most Out of Windows New UI Enhancements
Taskbar
Jump lists
Thumbnail Preview and Aero-peek
Libraries and federated search
Windows Ribbon
DirectX, DirectWrite, and Direct2D
More advance topics:
Windows Touch
Windows Sensors and Location
WLC312 -Optimizing Your Application for the Windows 7 User Experience
Wednseday June 9th, Room 356, 8 am

7. Optimize for Performance Get the Most Out of Windows Performance Enhancements
I/O priorities and cancelable I/O
File System and Registry Transaction Support
Windows Error Reporting
Application restart and recovery with Restart Manager
Power efficiency improvements
Trigger-Start Services
Windows Troubleshooting Platform
Windows Instrumentation
Windows Performance Tool Kit

8. Ensuring Good Performance
Responsiveness
Unresponsive system  customer dissatisfaction
Resource Utilization
CPU, disk, memory, network, Battery
Resources are limited and shared by others
Good Citizenship
It takes just one component to impact the entire system performance

9. Power Efficiency

10. Power Efficiency “All day” mobile PC battery life
TCO – reduced cost of energy consumption
New power consumption regulatory compliance
Environmental consortiums for computing (Green Computing)
Software performance is critical for Power Efficiency
Windows 7 power optimization
Less than 2% CPU activity when the system is idle
No disk activity when the system is idle
Reduced number of OS activities that prevent use of CPU’s power-saving modes.

11. Power Efficiency – Timer Coalescing API
Platform energy efficiency can be improved by extending idle periods
New timer coalescing API enables callers to specify a tolerance for due time
Enables the kernel to expire multiple timers at the same time
BOOL
WINAPI
SetWaitableTimerEx(
__in HANDLE hTimer,
__in const LARGE_INTEGER *lpDueTime,
__in LONG lPeriod,
__in_opt PTIMERAPCROUTINE pfnCompletionRoutine,
__in_opt LPVOID lpArgToCompletionRoutine,
__in_opt PREASON_CONTEXT WakeContext,
__in ULONG TolerableDelay );
Timer tick
15.6 ms
Vista
Periodic Timer Events
Windows 7

12. Analyze Energy-Efficiency
Tech Ed North America 2010
11/15/2018 4:14 AM
Analyze Energy-Efficiency
DEMO
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

13. Trigger Start Services

14. Impact of Background Activities Many activities in the background
Performance
Responsiveness
Consumes resources
Boot, shutdown, logoff, and so on
Reliability
Memory leaks
System crashes and hangs
Dependent application crashes
Security
Greater attack surface
System privileges
Successful attack may compromise entire system
Power consumption
Extra disk, CPU utilization
Decrease in battery life
Prevents idle efficiencies

15. Do We Really Need So Many Services?
OEMs and third parties services
Most services are not required during log-on
Even more services are not required during boot
Most services do not need to run 24x7
Conclusion:
Most services can be launched on demand when needed
Most services can be terminated on demand when needed
Consider using Windows Tasks

16. Service Startup Types Prior to Windows 7
Automatic Start
Your service is always there
Launched as part of the boot sequence
Slower startup time
Bigger memory footprint
Delayed Auto Start
Just deals with Slow startup time
Demand Start (manual)
You must programmatically launch the service
Why these services startup types are not enough?
Automatic Start adds latency to boot and shutdown, and always consumes resources
Demand Start is hard to program against and just resolve the startup problems

17. New In Windows 7 - Trigger Start Services
Trigger Start services are started when needed and stopped when their work is completed
The service should be running only if it has something to do.
Windows 7 Available service triggers:
Device interface arrival
Joining or leaving a domain
Opening or closing a firewall port
Group policy change
First IP address arrival
Last IP address removal
Custom events (ETW)

18. Trigger Start API SERVICE_TRIGGER trigger = { 0 };
Tech Ed North America 2010
11/15/2018 4:14 AM
Trigger Start API
SERVICE_TRIGGER trigger = { 0 };
trigger.dwTriggerType =
SERVICE_TRIGGER_TYPE_IP_ADDRESS_AVAILABILITY;
trigger.dwAction =
SERVICE_TRIGGER_ACTION_SERVICE_START;
trigger.pTriggerSubtype =
(GUID*)&NETWORK_MANAGER_FIRST_IP_ADDRESS_ARRIVAL_GUID;
SERVICE_TRIGGER_INFO info = { 0 };
info.cTriggers = 1;
info.pTriggers = &trigger;
ChangeServiceConfig2(hService,
SERVICE_CONFIG_TRIGGER_INFO, &info);
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

19. Trigger Start Services In Windows 7
Tech Ed North America 2010
11/15/2018 4:14 AM
Trigger Start Services In Windows 7
DEMO
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

20. Troubleshooting Platform

21. Windows Troubleshooting Platform
Consistent troubleshooting experience
Reduces helpdesk costs and drive higher user satisfaction
Automates standard diagnoses, verify cycle
Extensible–write your scripts and you’re good to go
Based on Windows PowerShell™ scripts, can invoke any code
Windows Troubleshooting Pack Designer (SDK)
Easily integrated into your application
Many troubleshooters available out of the box
Leverage Windows troubleshooting for common issues

22. Windows Troubleshooting Platform In Action
Tech Ed North America 2010
11/15/2018 4:14 AM
Windows Troubleshooting Platform In Action
DEMO
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

23. Troubleshooting Components
Troubleshooting Pack:
Implemented in PowerShell V2
Uses a standard wizard interface
Signed by a certificate
Deployed as .cab files
Can run remotely, can run unattended
Troubleshooting Platform:
Executes troubleshooting packs
Generates reports for analysis

24. Troubleshooting Pack Anatomy
Identification Metadata
Name and description
List of configuration issues
Security signature
Detection Scripts
Checks current configuration with expected configuration
Trouble-shooting Pack
Resolution Scripts
Sets the current configuration to what is expected
Verification Scripts
Verifies that current configuration is now what is expected
Localized Resources
Contains localized display strings in MUI format

25. Component Interaction
Process 1
GUI
CMD
Troubleshooting Pack
Windows Troubleshooting Framework
Troubleshooting Runtime Engine
Results and Reports
Get-DiagInput
Update-DiagReport
Add-DiagRootCause
Write-DiagProgress
PowerShell Scripts
Platform cmdlets
Process 2
PowerShell Runtime

26. Windows Troubleshooting Platform In Action
Tech Ed North America 2010
11/15/2018 4:14 AM
Windows Troubleshooting Platform In Action
Built your own troubleshooting package
DEMO
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

27. Windows Instrumentation

28. Windows Instrumentation
Key Features
High-performance, low overhead, highly scalable
Native and Managed APIs
Dynamic enablement of data collection
Multiple data collection options
Technology options
(Windows Management Instrumentation)
Performance Counters
Event Log
Event Tracing for Windows (ETW)

29. Windows Performance Counters
Always-present, always-on instrumentation infrastructure
Numeric information grouped into categories, counters and instances
Access
Programmatically (native and managed)
Through script languages
Using the Performance Monitor tool (perfmon)

30. Exposing Performance Counters
Native
Create a manifest
Use the CTRPP preprocessing tool
PerfAutoInitialize
PerfCreateInstance
PerfSet*Counter*Value
Managed: System.Diagnostics namespace
PerformanceCounterCategory class
CounterCreationDataCollection class
PerformanceCounter class

31. Windows Performance Counters
Tech Ed North America 2010
11/15/2018 4:14 AM
Windows Performance Counters
Exporting and viewing custom performance counters
DEMO
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

32. ETW/Event Log Event tracing for Windows
Always-present, selectively-on logging infrastructure
Information defined by event templates
Access
Programmatically (native and managed)
Script languages (PowerShell)
Command Line tools (tracerpt)
Event Viewer

33. Windows Event Overview
Event Audience
Developer; IT Professional
System Administrator
Technology
ETW
Event Log
Event Control
Manual
Always On
Event Rate
High (10^4 / sec)
Medium (10^2 - 10^4 / sec)
Features
Declaratively defined in manifests
Programmatic Consumption
Discoverability
Localizable Strings
Flexible Data Model
Same Features of ETW plus:
Remote Collection
Data Query Support
Admin Focused Tools
Centralized event logs
Reduced logging rate

34. Xperf Scenarios
Profile applications or the system itself (sampling profiler mode)
Capture ETW data for later analysis
Determine whether an application is I/O- or CPU-bound
…and many others!

35. Windows Performance Toolkit
xperf.exe: Command-line tool for ETW capturing and processing
xperfview.exe: Visual trace analysis tool
xbootmgr.exe: On/off transition state capture tool
Works on Windows Vista SP1, Windows Server 2008 and Windows 7

36. Capturing A Trace Turn tracing on: xperf -on <PROVIDER>
Perform activities
Capture a log: xperf -d <LOG_FILE_NAME>
Analyze it: xperf <LOG_FILE_NAME>
xperf -on Base
xperf -d result.etl
xperfview result.etl

37. Xperf Disk utilization

38. Xperf Hard page faults

39. Xperf Overlay graph

40. Using Xperf to identify performance issues
Tech Ed North America 2010
11/15/2018 4:14 AM
Using Xperf to identify performance issues
Capture and analyze
DEMO
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

41. Optimize for Windows 7 Summary
Use Windows 7 features to optimize for performance
I/O priorities and cancelable I/O
File System and Registry Transaction Support
Windows Error Reporting
Application restart and recovery with Restart Manager
Power efficiency improvements
Trigger-Start Services
Windows Troubleshooting Platform
Windows Instrumentation
Use Windows Performance Tool Kit to profile

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Tech Ed North America 2010
11/15/2018 4:14 AM
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© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

44. Resources Learning Required Slide www.microsoft.com/teched
Tech Ed North America 2010
11/15/2018 4:14 AM
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Sessions On-Demand & Community
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© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

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Tech Ed North America 2010
11/15/2018 4:14 AM
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© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

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47. Tech Ed North America 2010 11/15/2018 4:14 AM
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

48. Required Slide Tech Ed North America 2010 11/15/2018 4:14 AM
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.