Tencent

BqLog

Backend#Logging#C++#Performance#Cross-platform

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// summary

BqLog is a lightweight, industrial-grade logging system designed to deliver high performance across diverse platforms including mobile, desktop, and game engines. It supports multiple programming languages and provides advanced features like real-time compressed logging and hybrid asymmetric encryption. The system is engineered for high-concurrency scenarios, ensuring minimal memory usage and reliable crash recovery for demanding applications.

// technical analysis

BqLog is a high-performance, industrial-grade logging system designed to address the 'impossible triangle' of logging: ease of troubleshooting, high performance, and minimal storage footprint. Its architecture utilizes a core engine accessible via language-specific wrappers, allowing multiple languages within the same process to share a unified logging instance. By prioritizing low memory overhead and high-compression binary formats, the project provides a robust solution for high-concurrency environments, including mobile platforms and game engines like Unreal and Unity.

// key highlights

Delivers superior performance compared to industry standards like spdlog, glog, and Log4j2, with compressed mode being significantly faster.

Maintains an extremely low memory footprint, typically consuming only 1-4 MB even under high-concurrency, multi-threaded workloads.

Features a high-compression binary log format that reduces storage requirements by approximately 6.7x compared to plain text.

Supports optional, high-performance hybrid encryption (asymmetric and symmetric) to protect sensitive log content with near-zero overhead.

Provides a unified cross-language logging interface for C++, Java, C#, Kotlin, TypeScript, JavaScript, and Python.

Includes specialized support for game engines, offering Unreal Engine Blueprint integration and seamless redirection to game console outputs.

// use cases

High-performance asynchronous logging for server and client applications

Cross-language unified logging for C++, Java, C#, TypeScript, and Python

Secure, space-efficient log storage using hybrid asymmetric encryption and compression

// getting started

To begin, download the appropriate platform-specific package from the GitHub Releases page. Integrate the library using CMake or the provided language-specific integration guides, then initialize a log instance by passing a configuration string to the BqLog engine. You can then immediately start logging messages using the standard info or debug methods provided by your language's wrapper.