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Mesure et optimisation de performance .NET avec BenchmarkDotNet — micro-benchmarks, profiling mémoire/allocations, détection de régression et gates CI/CD.

Skill by krovomi

IndexedAGPL-3.0★ 2
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/krovomi-benchmark-dotnet

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About

Mesure et optimisation de performance .NET avec BenchmarkDotNet — micro-benchmarks, profiling mémoire/allocations, détection de régression et gates CI/CD. À utiliser pour écrire des benchmarks fiables, interpréter les résultats ou comparer des implémentations.

Use cases: devops

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/benchmark-dotnet

What's inside

Skill name
benchmark-dotnet
Description
Mesure et optimisation de performance .NET avec BenchmarkDotNet — micro-benchmarks, profiling mémoire/allocations, détection de régression et gates CI/CD. À utiliser pour écrire des benchmarks fiables, interpréter les résultats ou comparer des implémentations.
License
AGPL-3.0
Instructions
45 lines in SKILL.md · view on GitHub

Files (2)

  • SKILL.md
  • reference.md

SKILL.md (first lines)

# BenchmarkDotNet — Performance & Optimisation

Écrire des benchmarks fiables, lire les résultats et empêcher les régressions. Les suites d'exemples, l'analyse de résultats et l'intégration CI/CD sont dans **[reference.md](reference.md)**.

## Squelette minimal

```csharp
[MemoryDiagnoser]                    // colonnes Gen0/Gen1/Allocated
[SimpleJob(RuntimeMoniker.Net100)]   // .NET 10 (ajouter NativeAot100 si pertinent)
public class MyBenchmarks
{
    private readonly int[] _data = Enumerable.Range(1, 1000).ToArray();

    [Benchmark(Baseline = true)]
    public int Sum_ForEach() { var s = 0; foreach (var x in _data) s += x; return s; }

    [Benchmark]
    public int Sum_Span() { var s = 0; var sp = _data.AsSpan(); for (var i = 0; i < sp.Length; i++) s += sp[i]; return s; }
}
// Toujours en Release : dotnet run -c Release --project Benchmarks
```

## Lire les résultats

- **Mean** + **Ratio** : comparer au `Baseline`. Une différence n'est réelle que si elle dépasse l'erreur/StdDev (significativité statistique).
- **Allocated / Gen0-Gen1** (via `[MemoryDiagnoser]`) : cible le zéro-allocation sur les chemins chauds ; une forte pression GC est souvent le vrai goulot.
- **Régression** : ratio courant/baseline > ~1.05 → investiguer. Voir le validateur et le gate CI/CD dans reference.md.

## Bonnes pratiques

- Compiler et exécuter en **Release**, hors machine de dev si possible (bruit).
- Laisser BenchmarkDotNet gérer **warmup + JIT** (ne pas court-circuiter).
- Données **réalistes** (tailles représentatives) et **`[Arguments]`** pour balayer plusieurs échelles.
- Toujours un **`Baseline`** pour donner un sens aux ratios.
- Retourner/consommer le résultat (sinon le JIT peut éliminer le code mesuré).

## Anti-patterns

- ❌ Pas de warmup / JIT non chauffé
- ❌ Données trop petites ou irréalistes
- ❌ Pas de baseline ni de test de significativité
- ❌ Mesurer en Debug ou sur une machine bruyante
- ❌ Code mort éliminé faute de consommer le résultat

From krovomi/WorkPilot-AI, AGPL-3.0.

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48
Last commit (this folder)
Sep 15, 2026 (1 month ago)
Last release
Oct 20, 2026 (11 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
AGPL-3.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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benchmark-dotnet skill. Agent Mart. https://agentmart.dev/skills/krovomi-benchmark-dotnet (last updated 2026-10-24)