Hussein Nasser Courses

Node.js HTTP Module - Understanding Connection and Request Events

Dive into Node.js HTTP module fundamentals, exploring connection events, request handling, and streaming through practical examples with curl, browsers, and telnet.

• YouTube
• 26 minutes
• Self-Paced
• Free Video

Long Polling - Backend Communication Techniques

Explore backend communication techniques including polling, pushing, and long polling with their pros and cons in this engineering-focused episode.

• YouTube
• 26 minutes
• Self-Paced
• Free Video

Primary Key vs Secondary Key - What You Probably Didn't Know

Uncover the crucial differences between primary and secondary keys and their impact on database performance in this focused technical discussion.

• YouTube
• 11 minutes
• Self-Paced
• Free Video

Bloat in Databases

Discover how database bloat impacts performance and learn techniques to identify, prevent, and resolve storage inefficiencies in your database systems.

• YouTube
• 13 minutes
• Self-Paced
• Free Video

HTTP/3 over QUIC - HPACK and QPACK

Explore HTTP/3's evolution with QUIC protocol, examining HPACK and QPACK compression techniques for modern web performance optimization.

• YouTube
• 13 minutes
• Self-Paced
• Free Video

Key vs Non-Key Column Database Indexing

Learn how key and non-key columns affect database indexes and how included columns can improve query performance.

• YouTube
• 17 minutes
• Self-Paced
• Free Video

Asynchronous IO in Postgres 18 - The Backend Engineering Show

Explore Postgres 18's groundbreaking asynchronous IO features including worker and io_uring modes, comparing sync vs async calls and uncovering performance improvements for database operations.

• YouTube
• 40 minutes
• Self-Paced
• Free Video

How HTTP/2 Frees Connections

Discover how HTTP/2 revolutionizes web performance by eliminating connection bottlenecks and enabling efficient multiplexing for faster, more scalable applications.

• YouTube
• 12 minutes
• Self-Paced
• Free Video

The Anatomy of Node Packages

Discover how Node.js packages are structured internally, exploring their architecture and components to understand backend development fundamentals in this 33-minute deep dive.

• YouTube
• 33 minutes
• Self-Paced
• Free Video

Page Faults - Understanding Memory Management in Operating Systems

Explore page faults in operating systems: virtual memory, VMA areas, kernel mode, and various fault types including first access, stack expansion, CoW, and swap faults.

• YouTube
• 47 minutes
• Self-Paced
• Free Video

TLS Can Be Slow - This Changes the Game

Discover how to overcome TLS performance bottlenecks and revolutionize secure communication speed in this 10-minute technical deep dive.

• YouTube
• 10 minutes
• Self-Paced
• Free Video

How Huge Pages Work in Linux

Discover how Linux huge pages optimize memory management by reducing TLB misses and improving system performance through larger memory page sizes.

• YouTube
• 15 minutes
• Self-Paced
• Free Video

Socket Management and Kernel Data Structures in Operating Systems

Explore socket management in operating system kernels, including connections, queues, sharding, and buffers for effective backend performance.

• YouTube
• 30 minutes
• Self-Paced
• Free Video

PostgreSQL 18 Asynchronous I/O Methods

Discover Postgres 18's new asynchronous I/O methods and their impact on database performance optimization in this technical deep dive.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

The Role of CPU in the Kernel

Understand how the CPU operates within the kernel, exploring its fundamental role in operating system architecture and process management.

• YouTube
• 11 minutes
• Self-Paced
• Free Video