//devdigest: “⚡️ .NET speeds up GUID creation for cleaner startups Hard‑coded GUIDs…”

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Post #2384 62 Nov 17, 2025, 12:30 UTC

⚡️ .NET speeds up GUID creation for cleaner startups

Hard‑coded GUIDs in .NET can quietly slow down app startup — every `new Guid("...")` call adds overhead. The latest optimization cuts that cost, making GUID creation leaner and faster. A small win, but meaningful for performance‑tuned .NET apps.

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Meziantou's blog Optimize GUID creation performance in .NET applications Learn how to improve application startup time by replacing GUID string parsing with numeric constructor parameters - a micro-optimization that can make a difference in performance-critical scenarios.

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