perfj
A wrapper for Linux perf that enables profiling of Java programs with system and JVM stack traces combined.
What is perfj?
PerfJ is a wrapper for Linux perf specifically designed for Java programs. It solves the problem of traditional system profilers not being able to show Java methods by enabling combined profiling of both Java code and system-level operations. This allows developers to see complete stack traces including JVM internals, system calls, and application code in a single flame graph.
Java developers and performance engineers working on Linux systems who need to diagnose performance bottlenecks in production or development environments. It's particularly valuable for teams running Java applications where understanding both application and system-level performance is critical.
Developers choose PerfJ because it provides the only open-source solution that combines Linux perf's system profiling with JVM method visibility, offering a complete performance picture without requiring commercial profilers. Its integration with flame graphs makes complex performance data visually intuitive to analyze.
Overview
PerfJ is a wrapper of linux perf for java programs.
Use Cases
Best For
- Profiling Java applications with mixed Java and native code execution
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