@minbape

VM, Storage, Network, Container, Serverless

Aug 1, 2025 · 3 min read · 📌 1. VM (Virtual Machine) Concept A virtual computer created using virtualization technology on top of a physical server. How It Works Install a hypervisor on the physical server to split CPU, memory, and disk resources Each VM has its own operat...

What is an inline function?

Jul 31, 2025 · 3 min read · In C++, the inline keyword serves two main purposes: One Definition Rule (ODR) Exception Compiler Optimization Hint Let’s unpack what that means, see some examples, and discuss best practices. 1. Why inline Exists 1.1 One Definition Rule Excepti...

Algorithm Time Complexity Overview

Jul 31, 2025 · 2 min read · Note: The following complexities represent typical cases for commonly used algorithms and data structures.Actual performance may vary depending on input size, data distribution, and problem constraints. 1. Sorting Algorithms AlgorithmAverage Tim...

Prefix Sum

Jan 16, 2025 · 2 min read · A problem that processes a specific range in an N × M array may produce the correct answer using a simple for loop, but it can fail the efficiency test due to time limit issues. Drawbacks of Using a Naive For Loop Time complexity can increase up to ...

I/O Multiplexing (select, poll, epoll, IOCP, kqueue)

Jan 16, 2025 · 2 min read · What is I/O Multiplexing? I/O Multiplexing은 한 프로세스가 동시에 여러 파일 디스크립터를 관리하는 기법이다. 프로그램은 파일 디스크립터를 모니터링하여 어떤 종류의 I/O 이벤트(읽기, 쓰기, 예외 등)가 발생했는지 확인하고, 각각의 파일 디스크립터가 Ready 상태가 되었는지 판단한다. 이 기법은 Network socket과 같은 비동기적 I/O 작업에 특히 유용하며, socket도 IP와 Port로 구성된 파...