Wiki Article · Cinematic

NestJS Performance Optimization

NestJS performance optimization ka matlab hai NestJS application ki speed, throughput, aur resource…

Overview

NestJS Performance Optimization — Quick Facts

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Field: Detail

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Topic: NestJS Performance Optimization

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Category: Software Engineering / Performance

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Framework: NestJS (Node.js + TypeScript)

Topic 1

Infobox

📚 | Field | Detail | |---|---| | Topic | NestJS Performance Optimization | | Category |…

Topic 2

Optimization Areas Overview

💡 | Area | Technique | Impact | Complexity | Example | |---|---|---|---|---| | Server…

Topic 3

Fastify Adapter

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NestJS default: Express adapter.…

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Fastify: significantly faster.…

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Fastify NestJS ke saath fully…

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Fastify Express se 2-3x faster ho…

Topic 4

Caching Strategies

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Frequently accessed data ko…

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Same request dobara aaye to…

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@nestjs/cache-manager module —…

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In-Memory — Fastest, lekin single…

Topic 5

Database Optimization

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List me 100 items fetch, phir har…

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Solution: eager loading,…

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Impact: 101 queries → 1-2 queries.…

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Unbounded results kabhi nahi…

Topic 6

Serialization aur Compression

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ClassSerializerInterceptor se…

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@Exclude() se…

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Response payload smaller = faster…

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Response body compress karo — gzip…

Topic 7

Lazy Loading Modules

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NestJS default me sab modules…

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Lazy loading: module tab load ho…

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LazyModuleLoader se on-demand…

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Startup time significantly reduce…

Topic 8

Cluster Mode

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Node.js single-threaded — ek CPU…

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Multi-core server par baaki cores…

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PM2 cluster mode: pm2 start…

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-i max = CPU core count jitne…

Topic 9

Memory Management

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Objects jo garbage collected nahi…

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Common causes: event listener…

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Detection: --max-old-space-size +…

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V8 heap snapshots le kar analyze…

Topic 10

Performance Optimization Cycle

💡 `mermaid flowchart TD A[Identify Performance<br>Goal / SLA] --> B[Profile…

Topic 11

Profiling aur Monitoring

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clinic.js — Doctor (event loop),…

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0x — Flame graph generator. CPU…

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autocannon — HTTP load testing.…

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Datadog, New Relic, Dynatrace —…

Topic 12

Anti-Patterns (Avoid These)

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"Yeh slow ho sakta hai" — bina…

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Har response cache karna — stale…

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Critical hot paths cache karo,…

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"ORM handle kar lega" — nahi…

Topic 13

Challenges

🔑 1. Measurement Difficulty — Production-like conditions me accurate profiling setup karna…

Topic 14

Benefits

✨ 1. Better User Experience — Fast response = happy users. Slow response = frustrated…

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Glossary

🌟 | Term | Meaning | |---|---| | Throughput | Requests per second application handle kar…

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Disclaimer

🚀 Yeh article Aliens Wiki ke liye likha gaya hai, Hinglish (Roman) me. Yeh informational…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

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Quick Quiz

Quiz — Question 2

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