This guide walks you through installing Splunk on Linux or Windows, configuring automatic startup, indexing diverse log sources, and using Splunk’s powerful search, Boolean operators, and timeline features to troubleshoot and analyze system and network logs efficiently.
This article explains how to tune Nginx for high‑concurrency environments by adjusting OS limits, worker processes, worker connections, CPU priority, keep‑alive settings, TCP options, logging, caching, and I/O strategies to achieve optimal performance without relying on magical configurations.
This article recounts the development of early computers such as ENIAC and MANIAC, the contributions of Alan Turing and John von Neumann, and the broader historical, technical, and personal contexts that shaped the birth of modern computing and its lasting legacy.
This article walks through diagnosing severe memory consumption on an NFS server by examining top, vmstat, and slabtop outputs, revealing that large XFS inode and ILI caches from multiple volumes can drain RAM and how to free it.
This article presents Sogou's design for a highly available, high‑performance, and horizontally scalable business platform, illustrating key architectural components and scalability strategies through a series of diagrams.
This article explains how to implement a pure‑PHP timer using CLI mode, the PCNTL extension, and SIGALRM signals, covering basic concepts, task storage structures, the Timer class implementation, example usage, and practical considerations for long‑running services.
This article explores Google’s internal restructuring into Alphabet and explains the 26 alphabet‑named projects—from Android and DeepMind to Project Loon and Project Zero—highlighting their origins, technologies, and strategic goals.
This article surveys the ten most popular machine‑learning APIs from leading cloud providers, detailing their key features, documentation quality, ease of use, and popularity metrics, while also noting several noteworthy APIs that fell just outside the top ten.
The article argues that humility, honest self‑assessment, and the willingness to admit ignorance are essential personal traits for programmers, enabling them to manage mental fatigue, reduce errors, and continuously improve beyond their current abilities.
This article explains the definition of operational standardization and outlines four core principles—best practice, modularity, templating, and simplicity—showing how they improve team efficiency, documentation consistency, and enable scalable, automated operations.
This guide shows how to use MySQL's information_schema tables to retrieve the total size of a database, individual table sizes, index sizes, and detailed per‑table statistics such as row count and combined data and index space, using concise SELECT statements.
This article explains the purpose and differences of limits.conf and sysctl.conf, shows how PAM and sysctl modify user and system resource limits, provides file format details, ulimit command options, and practical configuration examples for both temporary and permanent kernel parameter tuning on Linux.
This article chronicles how Alan Turing’s insights into Hilbert’s Entscheidungsproblem sparked the invention of the Turing machine, the wartime code‑breaking efforts at Bletchley Park, and the development of the first electronic computers such as the Bombe, Colossus and ENIAC, shaping the foundations of modern computing.
The article explores the importance of motion design in product interfaces, detailing how thoughtful animations can enhance comfort, reduce friction, add delight, maintain attention, and subtly improve feedback, while providing practical examples and guidelines for effective UI animation.
This article compiles 50 of the most frequently asked Java multithreading and concurrency interview questions, covering core concepts, thread creation, synchronization mechanisms, memory model, common pitfalls, and best practices, providing concise explanations to help both novice and experienced developers prepare effectively.
The author recounts delivering a MapReduce talk, then uses a vivid pizza sauce preparation story to illustrate how mapping chops ingredients and reducing blends them, effectively explaining distributed data processing concepts to a non‑technical audience.
This article compiles detailed interview experiences for backend engineering roles at major Chinese tech firms, covering algorithm challenges, system design, networking, compiler concepts, and personal reflections that help candidates prepare effectively.
This article traces the historical origins of architecture from Vitruvius’s ancient treatise to contemporary IT frameworks such as Zachman, TOGAF, and FEA, explains core definitions, compares various architect roles, and offers practical guidance on applying architectural frameworks to drive enterprise transformation and operational efficiency.
This article explains how disk I/O performance impacts applications and introduces RAID technology, detailing common RAID levels such as RAID 0, RAID 1, RAID 5, and RAID 0+1, their performance characteristics, fault‑tolerance features, and appropriate use cases for improving throughput and data reliability.
This article explains how to improve the throughput and response time of Java systems by using buffers, caches, object‑reuse pools, and time‑space trade‑off algorithms, providing concrete code examples and performance measurements for each technique.
