C#垃圾回收的优化实践

public class ResourceHolder : IDisposable
{
    private bool disposed = false;

    public void Dispose()
    {
        Dispose(true);
        GC.SuppressFinalize(this);
    }

    protected virtual void Dispose(bool disposing)
    {
        if (!disposed)
        {
            if (disposing)
            {
                // 释放托管资源
            }
            // 释放非托管资源
            disposed = true;
        }
    }

    ~ResourceHolder()
    {
        Dispose(false);
    }
}

using (var resource = new ResourceHolder())
{
    // 使用资源
}

GC.Collect();
GC.WaitForPendingFinalizers();

using System;

class Program
{
    static void Main()
    {
        long memoryBefore = GC.GetTotalMemory(false);
        Console.WriteLine($"Memory before allocation: {memoryBefore}");

        CreateObjects(100000);

        GC.Collect(); // 手动触发垃圾回收
        GC.WaitForPendingFinalizers();

        long memoryAfter = GC.GetTotalMemory(false);
        Console.WriteLine($"Memory after garbage collection: {memoryAfter}");
    }

    static void CreateObjects(int count)
    {
        for (int i = 0; i < count; i++)
        {
            var obj = new object();
        }
    }
}