AI, big data, cloud computing, and networking.
This article traces the Internet’s evolution from Cold‑War‑era research projects like ARPA and ARPANET through the birth of TCP/IP, HTTP, REST, and the rise of SDN, OpenFlow, and P4, highlighting key milestones, standards, and the ongoing push toward fully programmable networks.
This article explains the concepts of user threads, the pthread library implementation, thread creation and termination functions, synchronization mechanisms like mutexes and condition variables, and demonstrates how to design and use a lightweight C thread‑pool with practical code examples.
This article explains NUMA architecture, its multithreaded performance overheads such as remote memory access, cache synchronization, context and mode switches, interrupt handling, TLB misses, and memory copies, and then presents optimization techniques like NUMA and CPU affinity, IRQ tuning, and large‑page usage.
Linux’s memory allocation mechanisms—Buddy for main memory and Slab/Slub for CPU cache—aim to maximize memory utilization, minimize fragmentation, and boost allocation efficiency, with detailed explanations of their structures, operation steps, and how to inspect them via /proc interfaces.
This article explains how the Linux kernel scheduler allocates CPU time among user processes in multi‑core environments, covering the main scheduler types—CFS, RT, and Deadline—their algorithms, priority schemes, and practical configuration using ps, nice, and chrt commands.
This article explains how C programs allocate, resize, initialize, and transfer memory using functions like malloc, free, realloc, memset, memcpy, memmove, and alloca, and provides coding standards to avoid out‑of‑bounds errors, leaks, and use‑after‑free bugs.
This article explains Linux huge pages, their performance benefits, implementation details, configuration steps, and the impact on memory reporting, including guidance on using and disabling Transparent Huge Pages for optimal system tuning.
This tutorial walks through extending a C‑based Lisp interpreter with string support, comment parsing, built‑in print and error commands, file loading capabilities, providing complete code examples and explanations for each feature in the interpreter.
This tutorial walks through extending a C‑based Lisp interpreter by adding conditional branching, comparison built‑ins, an if keyword, and registering all built‑in functions, while providing the complete source code and explanations for each component.
This tutorial walks through adding Q‑Expression support to a Lisp‑style interpreter written in C, covering syntax definition, parser updates, implementation of head, tail, join, list, and eval functions, macro‑based assertions, and a complete source listing with compilation instructions.
