Tối Ưu Cache: Từ 7 Request Đồng Thời Xuống Chỉ 1 Request Với Single Flight Pattern
Sep 1, 2025 · 7 min read · TL;DR: Từ việc gặp phải hiệu ứng thundering herd trong production, mình đã áp dụng Single Flight pattern với cơ chế lock để đạt được perfect deduplication - từ 7 request đồng thời xuống chỉ 1 request thực sự được gửi đi. Trong quá trình phát triển ứn...
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Destruction order vs thread safety in C++
Jul 30, 2025 · 5 min read · Welcome to the next pikoTutorial! What's the problem? Let's take a look at the simple example below: #include <iostream> #include <future> #include <thread> #include <memory> // define a class spinning up a thread class SomeClass { public: SomeCl...
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Multi-threading and Thread Synchronization
Mar 22, 2025 · 4 min read · When you use a computer, you interact with various applications—opening files, browsing the internet, and playing games. But have you ever wondered what ensures everything runs smoothly behind the scenes? That’s where the Operating System (OS) comes ...
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Understanding StringBuffer, StringBuilder, and String Classes in Java
Feb 17, 2025 · 3 min read · Introduction Strings are one of the most commonly used data types in Java. Java provides three different classes for handling strings efficiently: String, StringBuffer, and StringBuilder. Understanding their differences and when to use each one is cr...
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