Why Is Async Log4j2 Logging So Slow? A Deep Dive into Disruptor and JNI Overheads

The article investigates a severe performance bottleneck in a Java service caused by massive async Log4j2 logging, analyzes the Disruptor‑based async logger, explores JNI stack‑trace overhead, reproduces the issue with benchmarks, and provides practical recommendations to eliminate the slowdown.

DisruptorJNIJava

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Why Is Async Log4j2 Logging So Slow? A Deep Dive into Disruptor and JNI Overheads

Selected Java Interview Questions

Sep 17, 2023 · Backend Development

Comprehensive Guide to Configuring Log4j2: Dependencies, Configuration Files, PatternLayout, Appenders, Loggers, and Asynchronous Logging

This article provides a detailed tutorial on Log4j2, covering how to add Maven dependencies, write XML configuration files, use PatternLayout placeholders, configure various Appenders and Filters, set up Loggers, enable asynchronous logging, and fine‑tune rolling file policies for Java backend applications.

ConfigurationPatternLayoutRollingFile

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Comprehensive Guide to Configuring Log4j2: Dependencies, Configuration Files, PatternLayout, Appenders, Loggers, and Asynchronous Logging

Code Ape Tech Column

Apr 16, 2021 · Backend Development

Why Log4j2 Beats Logback and Log4j1: Performance, Configuration, and Advanced Features

This article compares Log4j2 with older Java logging frameworks, highlighting its superior asynchronous performance, zero‑GC design, flexible parameter formatting, simplified configuration options, and practical usage examples, ultimately showing why it should replace Logback and Log4j1 in modern applications.

ConfigurationLazy Evaluationasync logging

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Why Log4j2 Beats Logback and Log4j1: Performance, Configuration, and Advanced Features