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Native compilation
.NET Native
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Core .NET
Runtime
Next gen JIT (“RyuJIT”)
SIMD
Compilers
.NET Compiler Platform (“Roslyn”)
Languages innovation
iOS and Android
.NET 4.5.1 is now installed on 500+ million PCs!
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Wordament on .NET Native:
Scenario

Improvement (%)
Cold Startup
39.32%
Warm Startup
31.21%
Memory Usage
12.68%
Available for x64, ARM (x86 is coming)
V1 is targeted at Store apps
1. Enable
2. Debug/test app
public void NbodyCPUKernel_Vect(Particle[] A, ref Particle B, long numBodies) {
Float_4 acc; acc.x = 0; acc.y = 0; acc.z = 0; acc.w = 0;
// This loop is hot
for (long j = 0; j < numBodies; j++) {
Float_4 r;
for (long j = 0; j < numBodies; j++)
{
Float_4 r;
r.x = A[j].pos.x - B.pos.x;
r.y = A[j].pos.y - B.pos.y;
r.z = A[j].pos.z - B.pos.z;
r.x = A[j].pos.x - B.pos.x;
r.y = A[j].pos.y - B.pos.y;
r.z = A[j].pos.z - B.pos.z;
float distSqr = r.x * r.x + r.y * r.y + r.z * r.z;
distSqr += softeningSquared;
float invDist = 1.0f / (float)Math1.Sqrt(distSqr);
float invDistCube = invDist * invDist * invDist;
float distSqr = r.x * r.x + r.y * r.y + r.z * r.z;
distSqr += softeningSquared;
float s = fParticleMass * invDistCube;
float invDist = 1.0f / (float)Math1.Sqrt(distSqr);
float invDistCube = invDist * invDist * invDist;
acc.x += r.x * s;
acc.y += r.y * s;
acc.z += r.z * s;
}
B.vel.x += acc.x * deltaTime;
B.vel.y += acc.y * deltaTime;
B.vel.z += acc.z * deltaTime;
float s = fParticleMass * invDistCube;
acc.x += r.x * s;
acc.y += r.y * s;
acc.z += r.z * s;
B.vel.x *= dampening;
B.vel.y *= dampening;
B.vel.z *= dampening;
B.pos.x += B.vel.x * deltaTime;
B.pos.y += B.vel.y * deltaTime;
B.pos.z += B.vel.z * deltaTime;
}
}
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ative
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talk
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MSIL bytecode
Machine code
Brand new
just-in-time (JIT)
compiler for
.NET
Significant
application
startup
improvement
—how fast the compiler generates code.
—how fast the generated code executes.
—how the generated code differs across architectures.
—how throughput & CQ vary with different inputs to the compiler.
Learn more about
RyuJIT
Download RyuJIT
RyuJIT CTP1: The next-generation
JIT compiler for .NET
http://aka.ms/RyuJIT
RyuJIT CTP2: Getting Ready for
Prime-time
Help us make
RyuJIT better
[email protected]
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Scalar
SIMD (SSE2)
Support SSE2, AVX and
other vector instructions
in .NET.
For SSE2, an app can scale
up 4X on a processor
supporting SSE.
For AVX, an app can scale
up 8X on a processor
supporting AVX.
Developer preview
available as part of
RyuJIT CTP3.
Length is fixed, but
hardware dependent
public struct Vector<T> where T : struct
{
public Vector(T value);
public Vector(T[] values);
public Vector(T[] values, int index);
public static int Length { get; }
public T this[int index] { get; }
// With SIMD, these element wise operations are done in parallel:
public static Vector<T> operator +(Vector<T> left, Vector<T> right);
public static Vector<T> operator *(Vector<T> left, Vector<T> right);
// ...
}
float[] values = GetValues();
float increment = GetIncrement();
float[] result = new float[values.Length]
// Perform addition as manual loop:
for (int i = 0; i < values.Length; i++) {
values[i] += increment;
}
Vector<float> values = GetValues();
Vector<float> increment = GetIncrement();
// Perform addition as vector operation:
Vector<float> result = values + increment;
Unvectorized code
adds one value
at a time.
Using Vector<T>
you can add multiple
values simultaneously.
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 http://blogs.msdn.com/b/dotnet/
Communication
Source code
Cross-platform
A great way
to add core
functionality
to your app
We maintain a
curated list of
supported
packages
Owner
Packages
Downloads
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Position Package
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.NET API for Hadoop WebClient
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http://www.dotnetfoundation.org
Windows Phone Toolkit
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Xamarin.Mobile
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OWIN Authentication Middleware
Windows Azure .NET SDK
Miguel de Icaza (Xamarin)
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.NET Native
• ARM & X64
available today
(Developer
Preview)
• X86 coming
• Autovectorization
coming
• Exploring
additional
scenarios based
on customer
feedback
Next gen. JIT
• X64 available
today (DP)
• Support for
additional
architectures
coming
SIMD
• Support for
SSE2 available
today (DP)
• AVX support
coming
Crossplatform
•
•
Partnership
with Xamarin
X-plat
portable class
libraries
.NET
ecosystem
• .NET
Foundation
• One Class
Library
• NuGet as the
delivery
mechanism
Call To Action: Please try out the Developer Preview and give us feedback.
Blog
E-mail
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@dotnet
MSDN Forums
UserVoice
http://aka.ms/RyuJITinfo
http://aka.ms/RyuJIT
http://aka.ms/SIMDInfo
http://aka.ms/SIMD
http://aka.ms/NETCompiler
Platform
http://roslyn.codeplex.com
http://aka.ms/NetCo
mpilerPlatformDownl
oad
http://aka.ms/azuremobiles
ervicesnet
http://aka.ms/VS2013
Update2
http://aka.ms/VS2013Upda
te2Info
http://aka.ms/VS2013
Update2
http://aka.ms/universalproj
ects
http://aka.ms/VS2013
Update2
http://aka.ms/dotnetnative
http://aka.ms/dotnet
nativedownload
http://xamarin.com
http://xamarin.com
http://www.dotnetfoundati
on.org
The Present and Future of .NET in a World of
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