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C#: Span<T> ile Memory Optimization

- 18.08.26 - ErcanOPAK

💾 Span<T> = Memory Optimization

Heap allocation’lar maliyetlidir. Span<T> ile stack-based memory kullanımı yapın.

🎯 Span<T> Kullanımı

// 1. Span from Array
int[] numbers = { 1, 2, 3, 4, 5 };
Span span = numbers;
span[0] = 10; // Array değişir

// 2. Span from Stack
Span stackSpan = stackalloc byte[100];

// 3. ReadOnlySpan
ReadOnlySpan text = "Hello World".AsSpan();

// 4. Substring with Span
string s = "Hello World";
Span span2 = s.ToCharArray();
Span slice = span2.Slice(0, 5);

// 5. Performance Comparison
public int SumMemory(int[] array)
{
    int sum = 0;
    Span span = array;
    foreach (var num in span)
        sum += num;
    return sum;
}

// 6. String Parsing with Span
public int ParseNumber(ReadOnlySpan input)
{
    int result = 0;
    foreach (char c in input)
    {
        if (char.IsDigit(c))
            result = result * 10 + (c - '0');
    }
    return result;
}

✅ Span<T> Avantajları

  • ✓ Heap allocation yok
  • ✓ Daha hızlı erişim
  • ✓ GC baskısı azalır
  • ✓ Memory safe
  • ✓ Performance-critical kod

Span<T>, .NET’in memory yönetiminde devrim yarattı. Heap allocation’ları minimize ederek performansı artırır.

— Performance Engineer

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Post Views: 6

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