How to Build a Java LRU Cache in 5 Lines
Doogal Simpson
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174 posts published so far
How to Preserve Key Insertion Order in JavaScript
Doogal Simpson
How iPhone's Secure Enclave Stops Brute-Force Attacks
Doogal Simpson
Prevent Thundering Herd: Retry Jitter in Microservices
Doogal Simpson
How Java HashMap Prevents Hash Collision DoS Attacks
Doogal Simpson
How Structural Sharing Makes Immutability Fast
Doogal Simpson
SHA-256 vs Bcrypt: Why Speed Kills Password Security
Doogal Simpson
Python Integer Caching: Why 256 is 256 but 257 is Not
Doogal Simpson
Why 1:length(x) Fails in R (and How to Use seq_along)
Doogal Simpson
Inside Java Card: JVM for Battery-Less Microcontrollers
Doogal Simpson
Why rm Doesn't Free Disk Space in Linux (and How to Fix)
Doogal Simpson
Why Storing Future Events in UTC is a Database Trap
Doogal Simpson
Why Java Containers Die Silently: Fixing Docker OOM Kills
Doogal Simpson
Why You Can't Revoke Stateless Access Tokens
Doogal Simpson
Preventing Lost Update Race Conditions with Atomic SQL
Doogal Simpson
How to Calculate DB Connection Pools for Auto-Scaling
Doogal Simpson
Why Headphones Tangle: State Space and Software Decay
Doogal Simpson
How Gap Buffers Optimize Text Editor Performance
Doogal Simpson
How Ring Buffers Work: Low-Latency Circular Queues
Doogal Simpson
DeepSeek vs Claude Opus: LLM Cost & Latency Trade-offs
Doogal Simpson
Skip Lists: The O(log n) Alternative to Balanced Trees
Doogal Simpson
Debugging Docker Crash Loops: A Practical Guide
Doogal Simpson
Why abs() Fails on the Minimum Signed Integer Value
Doogal Simpson
Optimize Cheap LLMs for Frontier-Level Accuracy
Doogal Simpson
Microservice Security: Zero Trust & Threat Modeling
Doogal Simpson