Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events.

This project is a low overhead sampling profiler for Java that does not suffer from the Safepoint bias problem. It features HotSpot-specific API to collect stack traces and to track memory allocations. The profiler works with OpenJDK and other Java runtimes based on the HotSpot JVM.

Related contents:

• How a Kernel Bug Froze My Machine: Debugging an Async-profiler Deadlock @ QuestDB.

System profiling, app tracing and trace analysis.

Production-grade client-side tracing, profiling, and analysis for complex software systems.

Perfetto is an open-source suite of SDKs, daemons and tools which use tracing to help developers understand the behaviour of complex systems and root-cause functional and performance issues on client and embedded systems.

It is a production-grade tool that is the default tracing system for the Android operating system and the Chromium browser.

• Perfetto @ GitHub.

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• We stopped roadmap work for a week and fixed 189 bugs @ Lalit Maganti.

Open Source Continuous Profiling Platform. Debug performance issues down to a single line of code.

Grafana Pyroscope is a continuous profiling platform designed to surface performance insights from your applications, helping you optimize resource usage such as CPU, memory, and I/O operations. With Pyroscope, you can both proactively and reactively address performance bottlenecks across your system.

• Pyroscope @ GitHub.

Related contents:

• Traces with Tempo & Profiling with Pyroscope (via Terraform) @ Dev Genius' Medium.

🔬 A fast, interactive web-based viewer for performance profiles.

Supports import from a variety of profiles in a variety of languages (JS, Ruby, Python, Go & more).

Given raw profiling data, speedscope allows you to interactively explore the data to get insight into what's slow in your application, or allocating all the memory, or whatever data is represented in the profiling data.

• speedscope @ GitHub.

Related contents:

• The Whop chop: how we cut a Rails test suite and CI time in half @ Evil Martians.

Ruby tests profiling and optimization toolbox.

• TestProf @ GitHub.

Related contents:

• The Whop chop: how we cut a Rails test suite and CI time in half @ Evil Martians.

a sampling call-stack profiler for ruby 2.2+.

Related contents:

• The Whop chop: how we cut a Rails test suite and CI time in half @ Evil Martians.

A simple profiler for PHP.

A simple & straight-to-the-point PHP profiling extension with its built-in web UI.

Open source continuous profiling database.

Grafana Pyroscope is an open source continuous profiling database that provides fast, scalable, highly available, and efficient storage and querying. This helps you get a better understanding of resource usage in your applications down to the line number.

• Grafana @ GitHub.

Your mission control center for PHP application performance.

Tideways saves you time by taking the guesswork out of your app’s backend performance. Gain detailed insights, spot performance bottlenecks, and get real-time error detection alerts.

Blackfire APM Observability From Development to Production Monitor, profile and test your application even before it is released in production. Get actionable insights to improve your code rather than spend time figuring out what’s wrong. Ensure optimal performance and user experience for your web applications.

Blackfire Profiler Fire up your PHP App Performance

PHP Quick Profiler analyse les performances de vos applications PHP et affiche: L'utilisation mémoire Les fichiers inclus: Nombre et poids Les temps d'execution des pages Les requêtes SQL executées