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FastAPI Performance Optimization

FastAPI performance optimization ka matlab hai FastAPI application ko faster response times, higher…

Overview

FastAPI Performance Optimization — Quick Facts

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Property: Detail

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Full Name: FastAPI Performance Optimization

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Category: Performance Engineering, Backend…

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Scope: Code, Database, Caching, Server,…

Topic 1

Kyun Zaroori Hai

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User experience — slow API =…

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Cost savings — optimized code =…

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Scalability — optimize pehle,…

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SLA compliance — response time…

Topic 2

Optimization Categories

💡 | Category | Impact Area | Effort | Typical Improvement | |---|---|---|---| | Async/Await…

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Async/Await Optimization

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I/O-bound tasks (DB queries, HTTP…

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CPU-bound tasks (data processing,…

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Rule: agar await kuch hai to async…

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asyncio.Semaphore — concurrent…

Topic 4

Database Optimization

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Connection create karna expensive…

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Pool se connections reuse hoti…

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pool_size — steady-state…

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max_overflow — burst connections…

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Caching Strategies

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functools.lru_cache — simple…

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Best for: Computed values,…

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Limitation: Per-process (multiple…

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External cache store — sab workers…

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Server Configuration

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Single Uvicorn = single worker =…

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Gunicorn + Uvicorn workers =…

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Formula: workers = 2 × CPU_CORES +…

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4-core machine → 9 workers

Topic 7

Response Optimization

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GZipMiddleware — response compress…

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Trade-off: CPU usage vs bandwidth…

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Large JSON responses ke liye…

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Large datasets ko pages me serve…

Topic 8

Profiling & Benchmarking

🚀 | Tool | Type | What It Measures | When to Use | |---|---|---|---| | py-spy | Sampling…

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Performance Optimization Flow

📚 `mermaid flowchart TD Start[Performance Issue Identified] --> Measure[Measure Current…

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Common Performance Mistakes

💡 | Mistake | Impact | Solution | |---|---|---| | Blocking event loop | All requests slow |…

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Best Practices

🎯 1. Measure first — optimize karne se pehle profile karo; assume mat karo kaha bottleneck…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

FastAPI Performance Optimization ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

FastAPI Performance Optimization ka 'Full Name' kya hai?

Complete! 🎉

FastAPI Performance Optimization Complete!

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