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Questions tagged [ryujit]

The next-generation JIT compiler for .NET

A new, next-generation x64 JIT compiler that compiles code twice as fast is ready to change your impressions of 64-bit .NET code

Why ryujit? The 64-bit JIT currently in .NET isn’t always fast to compile your code, meaning you have to rely on other technologies such as NGen or background JIT to achieve fast program startup.

This new JIT is twice as fast, meaning apps compiled with RyuJIT start up to 30% faster (Time spent in the JIT compiler is only one component of startup time, so the app doesn’t start twice as fast just because the JIT is twice as fast.) Moreover, the new JIT still produces great code that runs efficiently throughout the long run of a server process.

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Ngen vs RyuJIT - fastest x64 running code when (pre-)startup does not matter

Are Ngen and RyuJIT two completely unrelated things under .NET 4.6 (especially with different optimization techniques and algorithms)? What produces fastest (better optimized) x64 native code if we do not care about the cost of jitting itself and/or…
Jan
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using SIMD operation from C# in .NET framework 4.6 is slower

I am currently trying to calculate the sum of all the values in a huge array using just C# and using SIMD to compare performance and the SIMD version is considerably slower. Please see code snippets below and let me know if I am missing something.…
Vish
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is it posible to use RyuJIT with earlier frameworks than 4.6?

There is my question sorry if it's silly but is it posible to use RyuJIT with earlier frameworks than 4.6?
MirlvsMaximvs
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Where can I get information on changes to the RyuJIT compiler?

I have some mathematical functions written in C# and associated performance benchmarks using BenchmarkDotNet. Today I installed Visual Studio 15.2 and according to the output from BenchmarkDotNet (a) some mathematical operations are now…
redcalx
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Vector.Dot not working correctly

I'm trying to use System.Numeric.Vectors nuget package (version 4.4.0), but following code does not work as expected: static void Main(string[] args) { var cnt = Vector.Count; var arr = new int[] { 42, 42, 42, 42 }; var arr2 = new…
ghord
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RyuJIT - Bug with ushort and Equals override (64bit)

While porting a 32bit managed application to 64bit I've observed a strange behavior by a Equals() override within a struct. You find the a repro at github. To reproduce the bug, you should compile the library with "optimize" flag on. This is default…
embee
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Where in the Virtual Memory can I find x86 code compiled by .Net JIT

I understand that when a function is called for the first time, the JIT is invoked and it compiles the .Net IL code into x86 instruction and keeps it in the memory somewhere. I need to know the location where this x86 code is kept so that I can…
Arun Satyarth
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Why .NET will does not support SSE in 32bit (while ryujit 64bit can) while Mono supports both 32bit and 64bit?

Ryujit will will support SSE instructions, however Ryujit is only for 64bit. Most of customer stick to Windows 32 bit OS because of company policy and budget (due to testing cost). My understanding is Ryujit is new "JIT scheme optimized for…
ultra mother hacker
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SIMD C# - Test shows no difference in speed. Why?

For reference, see: http://code.msdn.microsoft.com/windowsdesktop/SIMD-Sample-f2c8c35a This is not a real-world test. I've installed Ryu-JIT, and ran the following code after running "enable-JIT.cmd" and after running "disable-JIT.cmd". I've turned…
Narf the Mouse
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System.Numerics.Vectors IsHardwareAccelerated returns false

I currently working on a project which switched from MathNet.Numerics library to the System.Numerics.Vectors library. I want to make use of the SIMD hardware support. The target framework of the application is .NET 4.6.1 so RyuJIT should be the…
boFFeL
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