🍠Frontline tech director and chief architect at top-tier companies 🥝 Years of deep experience in internet, e‑commerce, social, and finance sectors 🌾 Committed to publishing high‑quality articles covering core technologies of leading internet firms, application architecture, and AI breakthroughs.
The article presents a data‑driven review of more than 50 AI Skills, grouped into five core scenarios, detailing their installation counts, key functions, and practical impact, to help senior developers choose the most effective plugins for accelerating development, design, documentation, and product growth.
DeepSeek V4, released on April 24, 2026, introduces a 1‑million‑token context via DSA sparse attention, offers Pro and Flash variants, adapts to domestic AI chips, cuts compute costs dramatically, and leverages open‑source weights to challenge the dominance of closed‑source LLMs, reshaping the global AI landscape.
This article systematically examines why MySQL indexes can become ineffective—covering function calls, implicit casts, LIKE patterns, OR conditions, composite‑index left‑most rules, data distribution, and ORDER/GROUP mismatches—while providing concrete code examples, production case studies, and actionable optimization techniques.
This article dissects the performance collapse of classic LIMIT‑OFFSET pagination on tables with hundreds of millions of rows, explains the underlying execution steps, presents benchmark data, and walks through a progressive set of solutions—including index tuning, Seek pagination, Cursor pagination, and sharding—complete with Go code examples and practical trade‑offs.
This article explains the shift from Redis's traditional single‑threaded model to the multithreaded I/O architecture introduced in Redis 6.0, detailing core design principles, performance benchmarks, Go code simulation, interview questions, and practical tuning tips for high‑concurrency workloads.
This article examines the evolution of Redis distributed lock implementations—from the basic SETNX command to atomic SET with Lua scripts and the feature‑rich Redisson framework—detailing core requirements, common pitfalls, Go code samples, and production‑grade recommendations.
This guide presents a systematic, end-to-end diagnostic workflow for high-concurrency database environments, covering slow-SQL detection, execution-plan analysis, lock-conflict monitoring, deadlock investigation, and practical optimization techniques, illustrated with real-world cases, commands, and tool integrations to swiftly resolve performance bottlenecks.
The article analyzes the rapid evolution of AI agents, market forecasts, shifting industry adoption, and a disciplined two‑month planning cycle, offering a detailed methodology and future outlook for organizations to stay ahead in the fast‑moving AI agent landscape.
This article explains how Redis achieves lightning‑fast performance with a single‑threaded architecture by leveraging in‑memory operations, IO multiplexing, and event‑driven design, and it details the four key advantages of this approach as well as the evolution introduced in Redis 6.0.
Even well‑designed indexes can become ineffective in production, leading to full‑table scans; this article systematically examines ten typical MySQL index‑failure cases—ranging from functions on indexed columns to low selectivity—and provides concrete SQL rewrites, performance comparisons, and diagnostic tools to help developers avoid and resolve these issues.
