The Mutex Club: Taming Thread Chaos with Mutexes
Key Insights – Concurrency model: Your playbook for managing simultaneous connections—threads, async I/O, or a hybrid combo. Think n8n…
The Mutex Club: How Distributed Locks Make Async Payments Bulletproof
Introduction ### The Retry Mirage Ever think slapping retries onto your async payment gateway will fix everything? It’s like using a…
The O(n) Club: Best Time to Buy and Sell Stock IV: The Art of Squeezing Profit From k Attempts
The O(n) Club: Best Time to Buy and Sell Stock IV — The Art of Squeezing Profit From k Attempts ⚡ TL;DR You want max profit from stock prices,…
The O(n) Club: Plus One Array Madness — Java’s Guide to Not Dropping the Carry
The O(n) Club: Plus One Array Madness — Java’s Guide to Not Dropping the Carry ⚡ TL;DR Add 1 to an array of digits like a caffeinated…
The Mutex Club: Parallel Merge Sort Demystified ⚙️
Key Insights # Divide, Sort, Merge: A CPU Triathlon Parallel merge sort is the classic divide-and-conquer algorithm on a Red Bull binge. You…
The Mutex Club: How Virtual Threads Throw Open the Doors
TL;DR; Java virtual threads let you handle millions of I/O-bound tasks concurrently without async gymnastics. Write blocking code, ditch the…
The O(n) Club: All Paths in a DAG (aka How Many Ways Can You Get Lost Without Ever Looping Back?)
The O(n) Club: All Paths in a DAG (aka How Many Ways Can You Get Lost Without Ever Looping Back?) ⚡ TL;DR You’re handed a Directed…
The O(n) Club: Binary Tree Preorder Traversal—How Not to Trip Over Your Roots
The O(n) Club: Binary Tree Preorder Traversal—How Not to Trip Over Your Roots ⚡ TL;DR Preorder traversal means hitting every node in a binary…
The Mutex Club: Why Mutex Starvation Is Sabotaging Your Threads
Key Insights # What is Starvation? When a mutex lets new arrivals cut the line, older threads never get the lock. In AI pipelines or…
The Mutex Club: Java Thread Dumps Unmasked
Key Insights ### Thread Dumps 101 Like a photo finish at a … debugging racetrack, thread dumps freeze every Java thread in flight. You get the…