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Visualizing C# Concurrency

A Research- Driven Guide

Banyak developer menulis `await Task.Run(...)` tanpa benar-benar tahu apa yang terjadi di balik layar.

Berapa banyak thread yang sebenarnya dibuat? Kenapa penggunaan memori tiba-tiba melonjak? Kenapa aplikasi tetap 'hang' padahal sudah menggunakan async/await?

"Visualizing C# Concurrency: A Research-Driven Guide" bukan sekadar buku teori. Ini adalah panduan visual yang akan menunjukkan kepada Anda:

- Bagaimana .NET Runtime mengatur antrian thread di memori secara visual.

- Kenapa lock tradisional bisa membunuh performa aplikasi modern Anda.

- Cara melihat "isi perut" async state machine yang selama ini tersembunyi.

- Pembuktian performa melalui benchmark nyata, bukan sekadar asumsi.

Dilengkapi dengan diagram timeline dan memory map, Anda tidak lagi menebak-nebak performa kode Anda. Anda akan melihatnya sendiri.

Jangan hanya menulis kode. Pahami cara kerjanya.

Visualizing C# Concurrency — Segera Hadir.

Banyak developer menulis `await Task.Run(...)` tanpa benar-benar tahu apa yang terjadi di balik layar.

Berapa banyak thread yang sebenarnya dibuat? Kenapa penggunaan memori tiba-tiba melonjak? Kenapa aplikasi tetap 'hang' padahal sudah menggunakan async/await?

"Visualizing C# Concurrency: A Research-Driven Guide" bukan sekadar buku teori. Ini adalah panduan visual yang akan menunjukkan kepada Anda:

- Bagaimana .NET Runtime mengatur antrian thread di memori secara visual.

- Kenapa lock tradisional bisa membunuh performa aplikasi modern Anda.

- Cara melihat "isi perut" async state machine yang selama ini tersembunyi.

- Pembuktian performa melalui benchmark nyata, bukan sekadar asumsi.

Dilengkapi dengan diagram timeline dan memory map, Anda tidak lagi menebak-nebak performa kode Anda. Anda akan melihatnya sendiri.

Jangan hanya menulis kode. Pahami cara kerjanya.

Visualizing C# Concurrency — Segera Hadir.

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About the Book

VISUALIZING C# CONCURRENCY: A RESEARCH-DRIVEN GUIDE

=====================================================

Tagline:

"Jangan hanya menulis async/await — pahami apa yang sebenarnya terjadi di memori saat thread berjalan."

Author: Afandy Lamusu (Senior Backend Engineer & Software Architect)

Target Audience: Beginner C# Developers

Methodology: Visual-First + Benchmark-Driven

Tech Stack: .NET 9, C# 13, BenchmarkDotNet 0.14.0

OVERVIEW

--------

Buku ini dirancang untuk mendemistifikasi konsep concurrency di C# melalui pendekatan visual dan berbasis data. Pembaca diajak bukan hanya menggunakan API, tapi memahami mekanisme internal runtime .NET saat mengelola thread dan task.

STRUKTUR BUKU

-------------

PART I — Fondasi: Memahami Thread dari Nol

- Chapter 1: Apa Itu Thread, Sebenarnya?

- Chapter 2: ThreadPool dan Task — Pekerja yang Lebih Pintar

- Chapter 3: Async/Await Demystified

PART II — Bahaya: Visualisasi Masalah Concurrency

- Chapter 4: Race Conditions — Ketika Thread Saling Menginjak

- Chapter 5: Deadlocks — Ketika Semua Thread Berhenti

- Chapter 6: Thread Starvation — Ketika Thread Kelaparan

PART III — Senjata: Synchronization Primitives

- Chapter 7: Lock, Monitor, dan Mutex

- Chapter 8: Semaphore, ReaderWriterLock, dan Concurrent Collections

PART IV — Praktek: Pattern, Profiling, dan Production

- Chapter 9: Concurrency Patterns yang Wajib Diketahui

- Chapter 10: Profiling Concurrency — Workflow Praktis

- Chapter 11: Concurrency di ASP.NET Core

- Chapter 12: Checklist, Cheat Sheet, dan Langkah Selanjutnya

APPENDIX

- Setup Environment, Glossary, Benchmark Results, & Diagram List

TOOLS YANG DIGUNAKAN

--------------------

- BenchmarkDotNet: Mengukur performa threading secara presisi.

- JetBrains DotTrace: Visualisasi timeline thread.

- VS Concurrency Visualizer: Menganalisis eksekusi thread secara visual.

- PerfView: Deep analysis berbasis ETW.

- SharpLab / ILSpy: Membedah state machine async/await.

- LINQPad: Eksperimen kode cepat.

FORMAT PEMBELAJARAN

-------------------

Setiap bab menyertakan Analogi Dunia Nyata, Penjelasan Visual (Diagram/Memory Map), Kode Contoh yang bisa dijalankan, Lab Eksperimen Hands-on, serta daftar Key Outcomes dan Common Mistakes.

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About the Author

Senior Backend Engineer and Software Architect with over 14 years of experience in building scalable, high-performance distributed systems. Throughout his career, he has led technical teams and designed complex architectures for marketplace, payment, telecommunications, and enterprise platforms.

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