The document discusses writing high performance code in .NET 7.0. It introduces Javier Cantón, the presenter, who has experience in 3D graphics and software architecture. The presentation covers topics like .NET unification, new C# features in .NET 7.0, micro-optimizations for real-time applications and graphics, and techniques for improving performance through value types, SIMD, and hardware intrinsics. It also addresses questions from the audience.

1. Writing high performance code
in Net 7.0

2. @jcant0n
Javier is a Computer Science Engineer who has
always had a passion for 3D graphics and
software architecture. His professional
achievements include being MVP for Windows
DirectX and DirectX XNA for nine years, Xbox
Ambassador, as well as Microsoft Student
Partner and Microsoft Most Valuable Student
during his years at college. Currently he works as
Chief technology innovation officer.
Javier Cantón

3. Evergine

12. Net 7.0
.NET is unified

13. Net 7.0
Generic Math
C# 11
Auto-default
struct
Numeric IntPtr
UTF-8 string
ref scope variables
Pattern match
span<char>
P/Invoke source
generation

15. Micro-optimization
• BCL and Runtime
• Real Time applications
• Graphics development
• ML libraries

16. What is faster (Assignment)?
@badamczewski01

17. What is faster (Struct Locals)?
@badamczewski01

18. What is faster (Nullable)?
@badamczewski01

19. What is faster (Try-catch)?
@badamczewski01

20. Measure

21. Measure

22. Principles

23. Value Type vs Reference Type
Stack Heap
Reference Type Memory Location
Int var = 10
Value Type
Int var = 10

24. Boxing and Unboxing
Stack Heap
j Int 4
o Int 4
i int 4
int 10

25. .NET Managed Heap
Size >= 85.000 bytes
LOH = GEN 2 = FULL GC

26. IL and JIT

27. GPU Command Queue

28. OpenGL Issue

29. OpenGL CommandQueue
• Queue<T>
• Interface and struct

30. MemoryPool

31. Custom Collection

32. Custom collection

33. Final Results

34. Vectorize Math
SIMD

35. Math Performance

36. Hardware intrinsics
• System.Runtime.Intrinsics
• Vector64<T>
• Vector128<T>
• Vector256<T>
• System.Runtime.Intrinsics.X86
• Sse, Sse2,… Sse42
• Avx, Avx2
• Fma
• System.Runtime.Intrinsics.Arm.Arm64
• AdvSimd

37. SIMD Math

38. Results

39. Matrix4x4

40. Memory

41. More…

42. XPlat

43. Runtime Boost

44. Apple M1

45. Questions
@jcant0n