Key OS and Network Interview Questions Explained: Multithreading, Virtual Memory, TCP Congestion Control, and HTTP/2

This article breaks down common operating‑system and networking interview topics, covering multithreading on a single core, segmentation and paging virtual memory, page faults and swap, kernel vs user mode, HTTP status codes and protocol evolution, and TCP congestion‑control algorithms with practical examples.

Network Protocolscongestion-controloperating-system

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Key OS and Network Interview Questions Explained: Multithreading, Virtual Memory, TCP Congestion Control, and HTTP/2

Deepin Linux

Nov 27, 2023 · Fundamentals

Understanding Linux Memory Mapping (mmap): Concepts, APIs, and Source‑Code Analysis

This article explains the fundamentals of memory‑mapped files in Linux, covering the mmap/munmap interfaces, mapping types, protection flags, error handling, virtual‑memory structures, kernel implementation details, driver examples, and practical use‑cases such as shared memory and high‑performance I/O.

Linuxkernelmemory-mapping

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Understanding Linux Memory Mapping (mmap): Concepts, APIs, and Source‑Code Analysis

Bin's Tech Cabin

Sep 18, 2023 · Fundamentals

Unveiling Linux mmap: From Virtual Memory to Page Tables and Huge Pages

This article provides an in‑depth exploration of the Linux mmap system call, covering its role in virtual memory management, page table structures, various mapping types (anonymous, file‑backed, shared, private), flag options, and advanced concepts such as huge pages and transparent huge pages, with kernel‑level diagrams and code examples.

LinuxPage Tablehugepages

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Unveiling Linux mmap: From Virtual Memory to Page Tables and Huge Pages