async-profiler
junit-jfr
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| async-profiler | junit-jfr | |
|---|---|---|
| 8 | 1 | |
| 5,883 | 5 | |
| - | - | |
| 8.4 | 0.0 | |
| about 1 year ago | over 3 years ago | |
| C++ | Java | |
| Apache License 2.0 | - |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
async-profiler
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Migrating a Spring Boot application to Quarkus
Using the Async Profiler we were able to build flamegraphs for the first and second queries to picture the differences in path length of the two transactions execution.
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Making Code Faster
> The other two languages I’ve used mostly in recent decades are Java and Ruby and the profiler situation is for both those languages is kind of shitty. I had to pay real money to get the Java profiler I used at AWS and while it worked, it was klunky, not fun to use.
These days, async profiler (https://github.com/jvm-profiling-tools/async-profiler) is much better than the Go tooling for performance. It is a joy to use and features a top-like view for the hottest methods. It works for locks, allocations and CPU time. It also integrates with JMH.
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Why would a Java prime sieve run at only half its speed _some_ of the times?
Also, running it under a profiler (I recommend async-profiler[1]) should give you a good idea of where the slowdown occurs which might help you pin it down further.
[1] https://github.com/jvm-profiling-tools/async-profiler
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Is there a way to know if my java game is slow on other computers?
Profile it. async-profiler is really great. Alternatively you can check out VisualVM/JProfiler/YourKit
- Best performance monitoring tools?
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Rust Option 30x more efficient to return than Java Optional
async-profiler is really great at analyzing allocations, give it a shot!
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Ask Java: what are some JFR-based tools that you enjoy?
JFR to Flame Graph Converter
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Utility script for generating flamegraphs from JFR logs without dependencies.
Async Profiler converter tool does support JFR to Flame Graph, JFR to FlameScope, collapsed stacks to Flame Graph -https://github.com/jvm-profiling-tools/async-profiler#download
junit-jfr
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Ask Java: what are some JFR-based tools that you enjoy?
junit-jfr a JUnit 5 extension that generates JFR events
What are some alternatives?
container-jfr - Secure JDK Flight Recorder management for containerized JVMs
async-profiler - Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events
jmh - https://openjdk.org/projects/code-tools/jmh
jfrunit - A JUnit extension for asserting JDK Flight Recorder events
jfr-libraries - a list of libraries that generate JFR events
scalatest-junit-runner - JUnit 5 runner for Scalatest
Arthas - Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas
micrometer-jfr - A Micrometer meter registry that generates JFR events
opentelemetry-java-instrumentation - OpenTelemetry auto-instrumentation and instrumentation libraries for Java
jfr-jdbc - a JDBC driver that wraps an other JDBC driver and generates JFR events
prometheus-jfr-exporter - a collector that scrapes JFR events from a JVM target at runtime for Prometheus to use
JavaFlames - One file java script for visualizing JDK flight recorder execution logs as flamegraphs without any dependencies except Java and a browser.