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Developer ToolsAlternative to YourKitAlternative to JProfilerAlternative to Datadog Continuous Profiler

async-profiler

Low overhead sampling profiler for Java that does not suffer from Safepoint bias.

View on GitHub
LicenseApache-2.0
GitHub stars8.5k
Last commit1 weeks ago
Tags5 topics
Java ProfilerMemory Allocation ProfilerJvm FlamegraphDeveloper ToolsSafepoint Bias Free
Overview

Why consider async-profiler?

async-profiler is an open-source low-overhead sampling CPU and memory profiler for the JVM written in C++ and Java by Andrei Pangin. Utilizing HotSpot AsyncGetCallTrace APIs, it eliminates safepoint bias to profile Java applications accurately under production load.

Guided learning

Learn async-profiler by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of async-profiler

async-profiler profiles Java CPU time, heap allocations, and lock contentions with negligible production overhead.

Quickstart

bash
1./asprof -d 30 -f /tmp/flamegraph.html <pid>

async-profiler is licensed under the Apache License Version 2.0.

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async-profiler FAQs

async-profiler is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

async-profiler is listed under the Apache-2.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

async-profiler is listed as an alternative to YourKit. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.