ogxd

using System;

public class C {
    
    public static int GetUnrollCountWithDivision(ReadOnlySpan<byte> bytes)
    {
        return bytes.Length >> 7 << 3;
    }
    
    public static int GetUnrollCountWithBitshift(ReadOnlySpan<byte> bytes)

ogxd

The Problem

What are we trying to solve?

Exception handling in .NET has several pitfalls:

Performance Overhead & Resiliency

Exception handling in .NET can be expensive in performance, especially when exceptions are thrown frequently. The process of throwing an exception involves capturing a stack trace and unwinding the stack, which is a costly operation. If an application relies heavily on exceptions for control flow, this can significantly degrade performance.

ogxd

public static class ConcatenateExtensions
{
    public static unsafe string Concatenate(this IReadOnlyList<string?> strings)
    {
        int size = 0;
        for (int i = 0; i < strings.Count; i++)
        {
            string? str = strings[i];
            if (str == null)
            {

ogxd

using System;
using System.Linq.Expressions;
using System.Runtime.CompilerServices;

public class C {
    
    public void M() {
        
        lamba = (x) => A(x) && B(x);
        

ogxd

#pragma warning disable CA2012
#pragma warning disable CA1816

using System;
using System.Collections;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Threading;

public class PreAllocatedCollectionsFactory<T> where T : class, ICollection