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This monitoring and performance diagnostics tool attaches a lightweight agent to Java-based applications, primarily those built with Spring, to analyze runtime behavior and identify bottlenecks without requiring code modifications or SDK integration. It offers real-time insights into application performance by tracking HTTP requests, SQL queries (including N+1 issues), outbound calls, CPU usage, and heap memory, while automatically detecting slow paths and performance anomalies through stack sampling and request tracing. Its main features include extensive request and query analysis, automatic detection of inefficient database patterns, visualization of hot execution paths, and customizable dashboards suitable for infrastructure, developer teams, and operations to troubleshoot, optimize, and ensure reliable application performance in cloud or on-premise environments.

OT4J 可以在以下位置找到： Website Monitoring, Uptime & Performance 类别。