Francis LamMicrosoft Hong Kong

Understand more on Windows 7 performance

Feature enhancement when using with Win2k8 R2

Application Compability

Windows 7 Deployment

The rise of small notebook PCs (netbooks)

1GB RAM, modest CPU and Disk

Both enterprise and consumer usageDomain-joined machines require additional resources, which can be challenging for small notebooks

Increasing percentage of PC sales about 20M expected this year

Commonly available PCs now cover a broader spectrum of capabilities

Everyone wants performance – what’s new?

Over 400 footprint reductions across all components

0

200

400

600

800

1000

1200

1400

LaptopA (x86)

LaptopB (x86)

ShipA (x86)

ShipB (x86)

ShipG (x86)

ShipH (x86)

ShipI (x86)

ShipJ (x86)

LaptopA (x64)

LaptopB (x64)

ShipB (x64)

ShipJ (x64)

Vista SP1

Windows 7 Beta

DWM re-architecture reduces memory footprint per window by 50%

Registry read into paged pool

Was memory mapped before

Improves performance because views into registry file don’t need to be mapped and unmapped

Working set management improvements:

Working set is amount of RAM memory manager assigns to process or kernel memory type

Memory manager tuned to reduce impact of run-away processes

Processes that grow quickly reuse their own pages more aggressively

Uses 8 aging levels instead of 4

System cache, paged pool, and pageable system code now each have own working set

Now, each tuned according to specific usage, which improves memory usage

Reduces impact of file copies on system code

PerfTrack: 300 user-visible scenarios identifiedExamples: open start menu, open control panel, booting

Performance goals set for each featureInstrumented with begin/end events

Data sampled from Customer Experience Program and fed back to feature teams

Performance

• System memory savings for running Aero

• High-performance Direct3D10 Aero Glass Windows desktop

• PerformantDirect2D API

• Performance gains in gaming scenarios

Enhanced end-user experience

• Better viewing experience on TVs and widescreen laptops

• Improved video overlay presentation

Improved Reliability

• Standardization of High-definition composition

• GPU content protection through standardized solutions

• Improved diagnosability

Memory savings - GDI Application windows

# of Windows

----------------------

Screen Resolution

5 windows 15 windows 30 windows

1024 x 768 15 MBytes 45 MBytes 90 MBytes

1280 x 1024 25 MBytes 75 MBytes 150 MBytes

1600 x 1200 36.5 MBytes 109.5 MBytes 219 MBytes

0

50

100

150

200

250

300

350

1 2 5 7 10 15 20 25 30 35 40 45 50

Mem

ory

Consum

ption (

MB

)

Number of Windows Open

Memory Consumption Comparison (Lower bars are better)

Windows Vista

Windows 7 Pre Beta

Preliminary data gathered on

Windows 7 pre-release builds

Flash is cheaper Bigger flash storage devices

Wider range of optionsThumb drives, SD cards, Compact Flash

SSDs of all sizes and price ranges

Multiple vendors

Small notebooks can incorporate flash in several forms (SSDs, external flash)

Challenges : • Enabling Windows performance features to scale across the

spectrum (small notebooks to high end machines)

• Helping customers evaluate small notebooks

PC Accelerators: Make the computer more consistently responsive

SuperFetch ™ Works with kernel memory manager to optimize memory usage

ReadyBoost™ optional flash supplement to memory

System Assessment: Evaluate performance of system components

Windows Experience Index Performance Control Panel with summary scores

Windows System Assessment TestsDetailed metrics underneath the summary score

Handle wider range of CPUs, new DX10 graphics, plus new Disk storage (both SSD and HDD)

SuperFetchWhat it does : Memory manager service

Pays attention to user usage patterns

Prioritizes pages so most important aren’t paged out of memory

Pre-loads the most relevant pages into memory

Make the computer more responsive by decreasing paging from disk

Where SuperFetch helpsOptimizing pages to user’s actual usage patterns

Speeds up resume after standby/hibernate

Compensating for slower disk, limited RAM

Random reads

Where SuperFetch does not make a big impactDay 1 scenarios (SuperFetch learns over time)

Unpredictable usage patterns

Systems with very fast disks

Systems with very low memorySince it takes memory to manage memory, SuperFetch will throttle back if the system is very memory-constrained. (ReadyBoost still available)

When workloads cannot fit into DRAM,

SuperFetch can utilize supplemental ReadyBoost caches

Keep more relevant pages in memory, pull fewer from disk

System is more consistently responsive

Benefits are workload dependent – if the workload is large relative to available memory, ReadyBoost can help

Low-RAM, slow-disk systems, like small notebooks

Help resume from standby and hibernate Not boot

ReadyBoost options:

Internal and external ReadyBoost devices

As in Vista , external devices can be : USB keys, SD or SDHC cards, Compact Flash cards

Choosing a ReadyBoost device:

Size before speed

RB cache should be 2-4x DRAM size (recommend 4x)

More ReadyBoost cachesVista supported only 1 per machine, W7 supports 8/machine

Larger ReadyBoost cachesVista supported max 4gb per cache, W7 supports 32GB/cache

FAT32 limited to 4GB per cache (filesize)

exFAT and NTFS cache files can be large

exFAT recommended, more suitable for removable devices

Higher encryptionVista only supported 128 AES

W7 supports AES 256 as an option default still 128

OEM options to configure internal ReadyBoost

Can turn off compression or encryption for internal ReadyBoost devices to minimize CPU load and increase performance

SuperFetchLet SuperFetch handle the tuning ; do not turn the service off

Adapts based on Disk speed and available memory

Turning off SuperFetch disables ReadyBootand ReadyBoost

Boot times would be much slower without ReadyBoot

ReadyBoost

If your machines have limited RAM (compared to their workloads) or slow disks, consider adding ReadyBoost devices.

Small notebooks : limited RAM, modest CPU and disks

Older machines

Easy to add external devices post-purchase

If customer is ordering machines, they can request internal or external ReadyBoost devices

Health policy validation and remediation

Helps keep mobile, desktop and server devices in compliance

Reduces risk from unauthorized systems on the network

RemediationServers

Example: PatchRestrictedNetwork

Windows

Client

Policy

compliantNPSDHCP, VPN

Switch/Router

Policy Serverssuch as: Patch, AV

Corporate Network

Not policy

compliant

DirectAccess

Server

Compliant

Client

Compliant

Client

Data Center and Business

Critical Resources

Internet

Intranet

UserEnterprise

Network

Intranet

User Assume the underlying network is always insecure

Redefine enterprise network edge to insulate the datacenter and business critical resources

Tunnel over IPv4 UDP, TLS, etc.

Technical Details

NAP /

NPS

Servers

Determine your strategyBe ready to monitor IPv6 traffic

Choose an Access Model: Full Intranet Access vs. Selected Server Access?

Assess deployment scale

Get your infrastructure readyWindows 7 clients

Windows Server 2008 R2 DirectAccess Server

DC, DNS Server, Active Directory, PKI, Application Servers, etc.

During deploymentUse DirectAccess configuration wizard to setup DirectAccess Server and generate policies for clients, application servers, and DC/DNS

Customize policies as needed

Get ready step by step

IT Pro Benefits

Improved manageability of remote users

IT simplification and cost reduction

Consistent security for all access scenarios

Seamless & secure access to corporate resources

Consistent connectivity experience in / out office

Combined with other Windows 7 features enhances the end to end IW experience

End User Benefits

Situation Today

Windows 7 Solution

Application and data access over WAN is slow in branch offices

Slow connections hurt user productivity

Improving network performance is expensive and difficult to implement

BranchCache™ SMB Enhancements

Improve user productivity

Reduce network bandwidth utilization

1. Transparent Caching

2. Improved Office Experience

3. Offline Files Enhancements

Windows 7 Solution

Authenticates current state of data and access rights of the user against the server

Supports commonly used protocols: HTTP(S), SMB

Support network security protocols (SSL, IPsec)

Requires Windows Server 2008 R2 in the data center and hosted cache

Caches content downloaded from file and Web servers

Users in the branch can quickly open files stored in the cache

Frees up network bandwidth for other uses

Technical Details

IDDataIDData

Data

IDDataDataID

SearchID

ID

ID

Data

ID

Data

Enterprise

Distributed CacheData cached in cache pool

Hosted CacheData cached at the host server

Cache stored centrally: existing Windows Server 2008 R2 in the branch

Cache availability is high

Enables branch-wide caching

Increased reliability

Recommended for branches without a branch server

Easy to deploy: Enabled on clients through Group Policy

Cache availability decreases with laptops that go offline

IISFile Server

Group Policy

Management

Install the optional “Windows

BranchCache” component on a

Windows 2008 R2 web or file

server

Use Group Policy to enable

Windows BranchCache on

Windows 7 clients

Hosted

Cache

Optionally, install a hosted cache in

your branch. Configure clients to use it

with

Group Policy

IT Pro Benefits

Optimize network utilization:HTTP and HTTPS-based intranet traffic

SMB (and signed SMB) shares on the read path

Support network security protocols (SSL, IPsec)

Reduce the cost of managing WAN

Improve application responsiveness and reduce file transferwait time

Combined with other SMB offerings enhance the userexperience on remote shares

End User Benefits

Eddie Chua

Microsoft HK Ltd.

Which applications do I WANT?

Which applications WORK?

Which applications do I HAVE?

New technologies introduced

35

Top areas of concern with Windows 7 application compatibility:

User Account Control (UAC)

Windows Resource Protection (WRP)

Internet Explorer® Protected Mode

64-bit Operating Systems

Windows Filtering Platform

Operating System Version Changes

Deprecations/GINA/Session 0 (High Impact/Low Frequency)

36

Windows Vista to Windows 7 compatibility is very high, but some changes were made:

Operating System Versioning

Security Class Applications

Removal of Windows Gallery applications (Windows Mail, Movie Maker, Messenger, Address Book, Photo Gallery)

National Language Support (NLS) Sorting Changes

Internet Explorer 8

File Libraries

High DPI Awareness

Removal of Windows Registry Reflection

Removal of msagent and milcore.dll, revamped CDROM driver stack and biometrics support

37

Code rewrite

Painful, least preferred

Virtualization (XP Mode, Med-V)

Costly : Requires specialized hardware support. Less preferred.

Apply Shim (ACT 5.5)

Application fixes to emulate / remediate changed features

Most preferred. NO additional investment required

Using Compatibility Administrator in ACT 5.5

39

Collection of tools to:

• Inventory for software, hardware, and device assets

• Compatibility evaluation for all of the above

• Get Vendor Support Statements, Logo data from Compatibility Exchange

• Recommendations for fixing applications and Websites (Internet Explorer 8)

• Tools to apply compatibility fixes or “shims” to applications

40

Collect Data Analyze Test and

Mitigate

Inventory Applications and Devices

Gather

high-level compatibility evaluator

data

In-depth testing with dev/test tools

Log test data

Build and test mitigations

Prioritize and Categorize

Synchronize data with Microsoft Compatibility Exchange

Identify high-level issues

41

Log Processing

Service and DB

Data Collection Package/Compatibility Evaluators

Inventory Windows 7 Update

Desktop Topology

Europe North America

HR Finance

1

2

Application

Compatibility

Manager

3

Greg

Ichiro

Internet

42

Compatibility Exchange4

Windows Vista

43

Windows components change to support:

New technology

Bug fixes

Strategy changes

OS changes may fix some, break others

Simulate previous Windows ONLY for an app

Application

Shim

46

Pre-configured Windows XP VHD image

USB Support New Windows 7 style UI

Seamless Applications

Needs hardwaresupport

Enterprise management tools for Software Assurance customers

New

48

Accelerate OS migrations

Reduce application compatibility concerns

Drive Business continuity

Intuitive user experience

Centrally manage Virtual PCs

Simplify Virtual PC image delivery and update

Seamless presentation of windows in a Virtual PC

49

Enable device roaming

Accelerated desktop deployment

Minimize app-to-app compatibility testing

Provisions applications to users at log on

Centralizes permissions

Isolates applications

Provide real-time usage reports

50

Francis Lam

Deployment

Image Servicing

and Management

Add/Remove Drivers

and Packages

WIM and VHD Image

Management

User State

Migration Tool

Hardlink Migration

Offline File Gather

Improved user file

detection

Microsoft

Deployment Toolkit

Application

Compatibility Toolkit

Microsoft

Assessment and

Planning

Windows

Deployment Services

Multicast

Multiple Stream Transfer

Dynamic Driver

Provisioning

Enable and disable, enumerate, add, remove packages and updates

Add, remove, enumerate drivers

WIM and VHD support

OEMs can select OS editions offline

DISM

/add-package

/add-package

/remove-package

/remove-package

/get-packages

/add-drivers

/remove-drivers

/get-drivers

/mount-wim

/unmount-wim

/commit-wim

Package Manager

/ip

/iu

/up

/uu

/mount

/unmount

/commit

Commands

Add Package

Add update

Remove Package

Remove Update

Enumerate Packages

Add Drivers

Remove Drivers

Enumerate Drivers

Mount WIM

Unmount WIM

Commit Changes (WIM)

ImageX

+Intlconfig

Multiple Stream TransferMultiple bands to broadcast images to clients

Optimized rates per client connection

Client Auto RemovalSlower clients can be dropped to unicast or entirely (only in standard multicast)

Boot Image MulticastWindows PE boot images can use multicast (clients with EFI)

Fast

Medium

Slow

Clients

WDS Server

Multicast

Transmission

First client joins “transmission”

Clients

WDS Server

Multicast

Transmission

Waiting for other clients to join…

Clients with multiple transfer speeds

WDS Server

Multicast

Transmission

Transmission begins…

Fastest Medium

Clients with multiple transfer speeds

WDS Server

Multicast

Transmission

Additional clients join stream

Fastest Medium Slowest Medium

Clients with multiple transfer speeds

WDS Server

Multicast

Transmission

More clients to join

FastestMedium Slowest Medium FastestMedium Medium

Clients with multiple transfer speeds

WDS Server

Multicast

First clients complete. Second broad-

cast begins. One client removed.

Medium Medium Medium MediumSlowest

Clients with multiple transfer speeds

WDS Server

Multicast

Last clients complete…

Medium MediumSlowest

Clients

WDS Server

Multicast

All clients complete.

Transmission ends.

Client

WDS Server

Images Drivers

Driver targeting to match drivers to hardware

Reduces image size and centralizes deployment driver management

Microsoft Confidential – NDA Only – Microsoft Preliminary Information

User State Migration Tool

Hardlink Migration Enables local file migration without copying or moving files

Processes migration jobs in third of the time or less

Offline User State Capture Capture during Windows PE phase to improve speed

Volume Shadow CopyCapture files even while they are in use

Improved File DiscoveryReduces XML customization need

Win7 USMT

/hardlink

/offlinewindir(PE or windows.old)

/vsc

/auto

USMT 3Commands

Hard Link Migration

Offline Windows Directory

Volume Shadow Copy

Auto Gather /migdocs /miguser

Windows Vista Windows 7Windows XP

Scanstate.exe

Loadstate.exe

Scanstate.exe Scanstate.exe

Loadstate.exe

Windows 7 USMT Supported OS

Microsoft Assessment

and Planning

Application

Compatibility Toolkit

Microsoft

Deployment Toolkit

Deployment

Image Servicing

and Management

Add/Remove Drivers

and Packages

WIM and VHD Image

Management

User State

Migration Tool

Hardlink Migration

Offline File Gather

Improved user file

detection

Microsoft

Deployment Toolkit

Application

Compatibility Toolkit

Microsoft

Assessment and

Planning

Windows

Deployment Services

Multicast

Multiple Stream Transfer

Dynamic Driver

Provisioning

© 2009 Microsoft Corporation. All rights reserved. Microsoft, Windows, Internet Explorer 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.