Jan 24 · 5 min read · Semaphore là một cơ chế đồng bộ được sử dụng để điều phối quyền truy cập của nhiều luồng/tiến trình vào một số lượng tài nguyên hữu hạn hoặc để đồng bộ luồng trong môi trường đa luồng. 1. Cách thức hoạt động của semaphore Semaphore là một tập hợp các...
Join discussionJan 12 · 6 min read · In high-throughput transaction processing systems, specific challenges inevitably arise: Resource Exhaustion and Race Conditions. When your API receives requests faster than your backend can process them, simply pushing everything into an array or ex...
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Jan 5 · 9 min read · Modern software rarely runs one thing at a time. Web servers handle many requests at once, background jobs run alongside user actions, and multiple threads often need to read or update the same data. When this shared access isn’t carefully controlled...
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Aug 24, 2025 · 4 min read · In my previous posts, we explored Box, Rc, Arc, and Mutex for managing ownership and thread-safe shared state. Today, we'll complete the picture with Semaphore - Rust's solution for controlling how many operations can run concurrently. The Problem: U...
Join discussionJan 23, 2025 · 3 min read · Semaphore vs Mutex Semaphore In a multi-threaded environment, your program might run into a problem if more than one threads are trying to acquire a shared resource at the same time. Semaphore is a synchronization tool used in programming to manage a...
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Oct 28, 2024 · 6 min read · In today's DevOps landscape, optimizing CI/CD costs while maintaining efficient delivery pipelines has become increasingly crucial. Organizations running hundreds or thousands of builds daily face significant challenges in managing their CI/CD resour...
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Sep 18, 2024 · 4 min read · Introduction The Dining Philosophers Problem is a classical synchronization problem that beautifully demonstrates the challenges of avoiding deadlock and resource starvation in concurrent programming. Originally formulated by E. W. Dijkstra, it’s wid...
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Aug 11, 2024 · 4 min read · Introduction Hello Everyone! 🌟 In this post, I'll take you through a deep dive into the world of real-time systems by benchmarking semaphore operations and analyzing system latency on a Raspberry Pi 4 using the PREEMPT_RT kernel. Whether you're a re...
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Mar 23, 2024 · 2 min read · Problem Scenario: - I have a spring boot application that acts as the backend for a frontned application that many users use. it has many rest controllers and hence many end points. One of the endpoints is an excel generation endpoint. But, since I u...
Join discussionMar 12, 2024 · 3 min read · The first in our "anatomy of a puzzle" series... In 2021, as the pandemic was thawing, we set out to build a new puzzlehunt: The World’s Fair, a Jules Vernian Victorian steampunk adventure. (It eventually morphed into the Octonet puzzlehunt, but tha...
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