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Same Big O, Different Speed: The Impact of CPU Cache Locality

Same Big O, Different Speed: The Impact of CPU Cache Locality

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2 min read
Rate-Limiting Writes, Not Reads: A Referral System Redesign

Rate-Limiting Writes, Not Reads: A Referral System Redesign

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2 min read
Modeling Wallet-to-Card Transfers as a State Machine

Modeling Wallet-to-Card Transfers as a State Machine

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4 min read
Real-Time Gaming Leaderboard System Design: Redis, Ranking & Scale

Real-Time Gaming Leaderboard System Design: Redis, Ranking & Scale

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18 min read
Building Digital Twins for Financial Systems: Architecture, Simulation, and Risk Testing

Building Digital Twins for Financial Systems: Architecture, Simulation, and Risk Testing

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4 min read
One Bad Request Crashed Everyone: Processes vs Threads

One Bad Request Crashed Everyone: Processes vs Threads

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6 min read
Design a Scalable Notification System

Design a Scalable Notification System

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2 min read
Design a Stock Trading App: A Mobile System Design Walkthrough

Design a Stock Trading App: A Mobile System Design Walkthrough

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7 min read
Design WhatsApp: A Mobile System Design Walkthrough

Design WhatsApp: A Mobile System Design Walkthrough

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9 min read
One Thread, 10,000 Users: Async and Event Loops Explained

One Thread, 10,000 Users: Async and Event Loops Explained

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7 min read
When the eSIM Doesn't Connect: Designing the Activation-Failure Support Path in Your App

When the eSIM Doesn't Connect: Designing the Activation-Failure Support Path in Your App

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5 min read
How a GPU Job Queue Became a Shared Inference Scheduler

How a GPU Job Queue Became a Shared Inference Scheduler

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9 min read
Big Billion Days - System Design

Big Billion Days - System Design

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4 min read
The Distributed Systems Error Handling Handbook

The Distributed Systems Error Handling Handbook

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6 min read
How I Measure a Server: The Knee, Percentiles That Lie, and Little's Law

How I Measure a Server: The Knee, Percentiles That Lie, and Little's Law

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5 min read
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