This case study details how a Baidu QA team diagnosed a long‑standing memory‑growth issue caused by improper use of Protocol Buffers, identified the problematic merged_data structure, applied a scoped_ptr reset fix, and validated the improvement with monitoring and unit tests.
This article presents a step‑by‑step case study of locating and fixing a memory‑leak problem in Baidu's Bigpipe Broker backend by analyzing a running leaking process with GDB, pmap, and custom scripts, highlighting the pitfalls of Valgrind and the importance of clear function naming.
This article details a real‑world investigation of a memory‑growth issue in a core backend service caused by improper use of Protocol Buffers, describing the symptoms, reproduction attempts, step‑by‑step root‑cause analysis, the implemented fix, and performance verification results.
The article details the author's multi‑month effort to replace SQL Server persistence in the open‑source EQueue message queue with a high‑performance local file storage solution, covering the motivations, design considerations, chunked binary file format, write‑and‑read mechanisms, and flushing strategies.
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.
This article details the design, implementation, and performance of Lushan, a high‑throughput offline static data storage server built with libevent that supports dynamic library mounting, key‑value indexing, and efficient query handling for large‑scale recommendation workloads.
This article compiles 33 notable open‑source web crawler projects across multiple programming languages, detailing their core features, licensing, supported platforms, and typical use cases, helping developers choose the right tool for large‑scale data harvesting and analysis.
This article provides a concise overview of numerous deep learning libraries and frameworks available for Python, Matlab, C++, Java, JavaScript, Lua, Julia, Haskell, .NET, and R, highlighting their main features, language bindings, and typical use cases in artificial intelligence research and development.
This article introduces the YouCompleteMe Vim plugin, explains its semantic completion advantages over traditional text‑based methods, lists supported languages, shows installation and compilation steps for macOS and Linux, and provides configuration tips to achieve IDE‑like code assistance within Vim.
This article explains C#'s managed and unmanaged resource handling, memory regions, garbage‑collection algorithms, generational GC, finalizers, the IDisposable pattern, value vs. reference types, and practical methods for discovering and pinpointing memory leaks in Windows Phone applications.
LevelDB, created by Google Fellows Jeff Dean and Sanjay Ghemawat, is a high‑performance C++ key‑value library that provides persistent, ordered storage with snapshots, compression, and atomic batch operations, achieving up to 400,000 random writes and 60,000 random reads per second.
The article argues that while programmers obsess over performance gains, maintainability is often more critical, illustrating this with C# LINQ vs Single/First debates, database design pitfalls, and the hidden costs of premature optimization, ultimately urging developers to prioritize readable, maintainable code and measure performance before refactoring.
The author recounts transitioning from PHP and .NET web development to building Android and iOS apps with Xamarin, describing the motivations, new programming paradigms like MVVM and async, the steep learning curve, and the ongoing commitment to mastering mobile development.
This article explains how to embed the Lua scripting engine into native C programs, Java applications via LuaJava, Android apps using JNI, and iOS projects, covering environment setup, bridge functions, compilation commands, and runtime examples for each platform.
This article explains Linux kernel interrupt handling, top‑half and bottom‑half mechanisms, IRQ request/release, shared IRQs, disabling/enabling IRQs, tasklets, workqueues, softirqs, the timer API, and provides a complete character‑device driver example with a user‑space test program.
On Linux, C source is turned into an ELF executable through compilation with gcc, linking of object files and libraries, and loading by the kernel, a process that depends on CPU architecture, binary formats, symbol tables, dynamic relocation, and startup code before main runs.
This guide walks you through creating a lightweight WPF desktop application that leverages Baidu Translate’s public API to translate words, covering API key acquisition, HTTP GET requests, JSON parsing with Newtonsoft.Json, UI design in XAML, and handling special characters, enabling instant word translation without ads.
This article examines various network server architectures—from blocking sockets and multithreaded designs to select‑based and libev‑driven event loops—highlighting their trade‑offs, performance implications, and practical implementation details for building efficient high‑concurrency services.
The article surveys ten frequently cited quirky language features—from JavaScript’s “+” string coercion and automatic semicolon insertion, to Perl’s mandatory true module return and cryptic special variables, C’s interchangeable array indexing, PHP’s mixed case sensitivity, Ruby’s truthy zero, Python’s indentation blocks, C’s pointer arithmetic, and Java’s autoboxing with Integer caching—highlighting their surprising behaviors and community frustrations.
