This article explains what system load capacity is, how to measure it using requests per second, identifies key factors such as bandwidth, hardware, OS and server configurations, and provides practical tuning steps for Linux, TCP, Nginx, Tomcat and databases to improve scalability.
An in‑depth guide walks readers through building a comprehensive monitoring system for small‑to‑medium enterprises, covering hardware, system, application, network, security, traffic analysis, business metrics, log aggregation, automation, visualization, and practical integration with tools like Zabbix, IPMI, ELK, and Smokeping.
Caching dramatically improves website performance by storing data in memory for faster responses and reducing database load, with Memcached and Redis as popular solutions; proper routing algorithms like consistent hashing are essential to scale clusters without causing cache misses or service disruption.
The article examines why product‑focused founders often stumble as their companies scale, outlining three failure causes—including lack of desire to be CEO, board panic, and the Product‑CEO paradox—and offers practical strategies for CEOs to stay visionary while avoiding over‑control.
The article traces the history of the legendary "Hello World" program—from Brian Kernighan's 1978 C book and its early B-language roots, through its cultural symbolism, to the hardware breakthroughs that helped it become a universal first program for generations of developers.
The article explores the definition of a programmer, outlines essential skills and daily responsibilities, discusses common career pitfalls, and provides practical advice on personal branding and professional growth for software developers.
This article traces Node.js’s evolution from a modest 2009 V8‑based runtime to a dominant backend platform, highlighting npm’s impact, its event‑driven, non‑blocking architecture, real‑world strengths and limitations, and why careful evaluation is essential before adopting it.
This article introduces Erlang as a general‑purpose concurrent language, highlighting its fault‑tolerant runtime, simple 550‑line syntax, pattern‑matching capabilities, process creation with spawn, and practical examples using the ibrowse HTTP library to demonstrate message passing and distributed computing.
In a lively Q&A session, industry experts discuss the relationship between Docker and IaaS, share best‑practice guidelines for container deployment, examine emerging standards like OCI and CNCF, and forecast the next five years of infrastructure evolution.
This guide explains how QQ Browser’s WeChat debugging tool lets developers run and test their server code locally without an external domain, by generating a public URL that forwards messages from the WeChat server to the local program.
This article traces the evolution of Weibo's recommendation architecture across three major phases—independent 1.0, layered 2.0, and platform‑centric 3.0—detailing the driving business and technical factors, architectural components, advantages, shortcomings, and key outcomes of each stage.
This article demonstrates how to use strace, including its -c, -T, and -e options, to identify kernel‑level system calls such as clone that cause high CPU consumption in PHP processes on a Linux server, providing step‑by‑step commands and interpretation of the results.
This guide explains how to create a high‑availability PostgreSQL cluster on two hosts using streaming replication, automatic failover and failback, dual virtual IPs, heartbeat monitoring, and stress testing, with full configuration scripts and practical test results.
This article explains the concept of "pythonic" code in Python, comparing concise, readable idioms with longer non‑pythonic alternatives across common tasks such as swapping variables, truth testing, string manipulation, list operations, comprehensions, dictionary handling, loop control, ternary expressions, enumerate, and zip.
The talk outlines how 58.com’s website architecture evolved through stages—from a single‑machine, low‑traffic setup to a distributed, Java‑based, high‑availability system handling over a billion visits—detailing the challenges faced and the technical solutions adopted at each scale.
This guide details the steps to export a configuration file from a Quidway switch using TFTP and to identify the IP address assigned to a specific MAC address on an S5700 switch by querying the ARP table.
This guide details the common iOS 9 compatibility issues WeChat encountered—such as Bitcode build failures, HTTP restrictions, canOpenURL limits, API deprecations, window level conflicts, and iPad split‑view challenges—and provides step‑by‑step solutions for each.
Matt Welsh, a former Harvard CS professor now at Google, details his typical workday at both institutions, highlighting the stark contrast in coding time, meetings, and personal routines, offering insight into modern software engineering and academic life.
A graduate student recounts the shocking code quality issues he found in his team's data‑mining project, highlighting bad naming, massive classes, duplicated logic, overuse of singletons, excessive comments, and other anti‑patterns that jeopardize maintainability and graduation.
The article explores Eric Schmidt's bold claim that the traditional Internet will disappear, outlines how the Internet of Things is poised to dominate with massive market potential, highlights major tech companies' IoT strategies, compares IoT with the Internet, and details the key technologies driving this new ecosystem.
