Overview of VS2010 and .NET 4.0

An Overview of VS2010 and .NET 4.0

Visual Studio Targets Many…
Complete
Team System
Professional
Feature Set
Express
Minimal
Hobbyist
Enterprise
Audience

…and there are Four Pillars
Understanding
The Code
Building Web
Applications
Creating Office
Business
Applications
Using The
Power of
C++

Breakpoint Grouping
Parallel Tasks Window
New Look & Feel
Extensible Test Runner
Dynamic Data Tooling
Generate From Usage
Highlight References
WPF-based Editor
Click-Once Enhancements for Office
Breakpoint Labeling
Call Hierarchy
Web Deploy
Improved WPF Tooling
Sharepoint Tooling
Historical Debugging
MVC Tooling
Inline Call Tree
Minidump Debugging
Quick Search
JQueryIntellisense
Concurrency Profiler
Breakpoint Import/Export
Document Map Margin
64-bit Mixed-Mode
Parallel Stacks Window
HTML Snippets
Improved Multi-Monitor
web.config Transformation
New Visual Studio 2010 Features…

The Two Faces of Visual Studio 2010
Visual Studio As An Editor
An improved focus on…
Writing code,
Understanding code,
Navigating code,
Publishing code

New VS2010 Capabilities

The Two Faces of Visual Studio 2010
Visual Studio As A Platform
New Editor allows for easy extensibilityto provide a rich and robust editing experience
Online Visual Studio Gallery integrated directly into Visual Studio

Extension Manager

But Didn’t You Say Extensibility?
Available through the Managed Extensibility Framework (MEF)
New library in the .NET Framework
Enables greater reuse of applications and components.
Shift applications from being statically to dynamically composed

Composite Application?
Isn’t that like Prism?
Sort of
MEF != Prism
Prism is just UI guidance
Uses an IoC container (Unity)
MEF is a dependency injection framework
Closer to Unity
Can actually be used with Prism

Applications Made Out of Parts

The Import/Export Business
Import
Need
Export
Got
Parts

The Extensibility Scenario
Application
Need
Menus
Need a Toolwindow
Got a MenuService
Got a Toolwindow
Got a Menu
Extension A
Extension B
Need a MenuService

…Put into Geek Terms
Part
Import
Menus
Import “Toolwindow”
Import IMenuService
Export “Toolwindow”
Export aMenu
Part
Part
Export IMenuService

And Why Should I Care?
Because the Visual Studio 2010 IDE is a MEF application
Integration with menus
Integration with toolbars
Integration with the editor

Extending Visual Studio

The Target of CLR 4
Working Better Together…
In-Proc SxS
Managed Extensibility Framework
Native/Managed Interop
DLR Integration
Faster
Threading
Parallel Extensions
Garbage Collection
Profiling
With Fewer Bugs…
Code Contracts
Debugging
Corrupted State Exceptions

Base Class Library Improvements
Numerics
BigInteger, Complex
Data Structures
Tuple
SortedSet<T>, ISet<T>
I/O
Memory-Mapped File
Unified Cancellation Model

Side-by-Side (Sxs) at .NET 3.5
2.0 add-in
3.0 add-in
3.5 add-in
1.1 add-in
3.5
.NET 1.1
3.0
.NET 2.0
Host Process (i.e. Outlook)

Side-By-Side (SxS) at .NET 4.0
2.0 add-in
3.0 add-in
3.5 add-in
4.0 add-in
3.5
.NET 4.0
3.0
.NET 2.0
Host Process (i.e. Outlook)

The target of CLR 4
In-Proc SxS
DLR Integration
Faster
Threading
Parallel Extensions
Garbage Collection
Profiling
With Fewer Bugs…
Code Contracts
Debugging

“Moore’s Law scaling should easily let us hit the 80-core mark in mainstream processors within the next ten years and quite possibly even sooner.”
- Justin Ratner, CTO, Intel

The Parallel Computing Initiative
Based on the following premise:
Let the brightest developers solve business problems, not concurrency problems.
“Concurrency for the masses”

Concurrency Landscape
For Visual Studio 2010 and the .NET Framework 4…
System.Threading
Parallel Extensions
Unified Cancellation Model

New System.Threading Primitives
A Barrier is a synchronization primitive that enforces the stopping of execution between a number of threads or processes at a given point and prevents further execution until all threads or processors have reached the given point.
A CountdownEvent is a synchronization primitive that enables ongoing tracking of a given workload in order to determine if processing of that workload is finished or not.
YUCK!

Barrier
“Let’s all head to Wasaga! We’ll meet at the gas station and leave from there.”
Dennis
Mac
Barrier
Wasaga
Charlie
Gas Station

Unified Cancellation
“Sir, we are ready to seat you…” - Hostess
Cancellation
Token
Source
Cancellation
Token

The Unified Cancellation Model

Parallel Extensinos
A .NET Library that supports:
declarative and imperative data parallelism
imperative task parallelism
Also provides a set of data structures that make coordination easier.
Parallel LINQ (PLINQ)
Task Parallel Library (TPL)
Coordination Data Structures (CDS)

“Work Stealing” in Action
Worker Thread 1
Worker Thread p
Program Thread
Task 3
Task 1
Task 4
Task 5
Task 2

Parallel Static Class
When program statements are independent…
…they can be parallelized
StatementA();
StatementB();
StatementC();
Parallel.Invoke(
() => StatementA(),
() => StatementB(),
() => StatementC() );

Parallel Static Class

PLINQ
Parallel LINQ (PLINQ) enables developers to easily leverage manycore with a minimal impact to existing LINQ programming model
var q = from p in people
where p.Name == queryInfo.Name &&
p.State == queryInfo.State &&
p.Year >= yearStart &&
p.Year <= yearEnd
orderbyp.Year ascending
select p;
.AsParallel()

Parallelizing LINQ

The goal of CLR 4
In-Proc SxS
DLR Integration
Faster
Threading
Parallel Extensions
Garbage Collection
Profiling
With Fewer Bugs…
Code Contracts
Debugging

Design By Contract
Code Contracts introduce a way to specify contractual information that is not represented by a method or type’s signature alone.

What is a Contract?
A contract is…
An exchange of promises between two or more parties to do, or refrain from doing, something
Key concept here is ‘promise’

Why Contracts?
Just because something compiles, doesn’t mean it works…

A Contract contains…
Pre-conditions - must be true before
Post-conditions -must be true after
public Rational(int numerator, int denominator)
{
Contract.Requires(denominator > 0);
…
}
public string GetPassword()
{
Contract.Ensures(Contract.Result<string>() != null);
…
return password;
}

A Contract contains…
Invariants - must always be true
[ContractInvariantMethod]
protected void ObjectInvariant()
{
Contract.Invariant(denominator > 0);
}

Code Contracts

Database Choices
Value Props:
Full h/w control – size/scale
100% compatibility
Roll-your-own HA/DR/scale
Value Props:
100% of API surface area
Roll-your-own HA/DR/scale
Dedicated
On-premise
SQL Server or other s/w on-premise
Resource governance @ machine
Security @ DB Server/OS
Value Props:
Auto HA, Fault-Tolerance
Friction-free scale
Self-provisioning
High compatibility
Resources
Hosted
Hosted SQL Server or other
Resource governance @ VM
Security @ DB Server/OS
SQL Azure (RDBMS)
Virtual DB server
Resource governance @ LDB
Security @ LDB
Shared
Low
“Friction”/Control
High
SQL Azure V1 targets scenarios that live in the lower left quadrant

Windows Azure Platform
Compute:Virtualized compute environment based on Windows Server
Storage: Durable, scalable, & available storage
Management: Automated, model-driven management of the service
Database:Relational processing for structured/unstructured data
Service Bus: General purpose application bus
Access Control: Rules-driven, claims-based access control
AppFabric

Scenarios for V1
Departmental Applications
Simple application built by individual or department
Need simple deployment, self-management, IT: “Empowerment and Governance”
Web Applications
Small business or startup that uses the cloud as their IT
Simple deployment, self-management, scale on demand
ISV
ISV hosting software on behalf of customer
Multi-tenant support for billing and isolation

V1 Application Topologies
SQL Azure access from outside MS Datacenter
(On-premises – ADO.NET)
SQL Azure access from within MS Datacenter
(Azure compute – ADO.NET)
Application/
Browser
App Code / Tools
ADO.NET Data Svcs/REST - EF
HTTP/S
SOAP/REST
HTTP/S
App Code
(ASP.NET)
Windows Azure
T-SQL (TDS)
T-SQL (TDS)
SQL Data Services
SQL Data Services
MS
Datacenter
MS
Datacenter
Code Far
Code Near

SQL AzureDeployment
DB Script
SQL Azure
TDS Gateway

SQL AzureAccessing databases
Change Connection String
Your App
SQL Azure
TDS Gateway

Connecting To SQL Azure

Overview of VS2010 and .NET 4.0

by Bruce Johnson on Apr 23, 2010

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Overview of VS2010 and .NET 4.0 — Presentation Transcript