junit4-jfr
async-profiler
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| junit4-jfr | async-profiler | |
|---|---|---|
| 1 | 8 | |
| 1 | 5,883 | |
| - | - | |
| 0.0 | 8.4 | |
| about 3 years ago | about 1 year ago | |
| Java | C++ | |
| - | Apache License 2.0 |
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junit4-jfr
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Ask Java: what are some JFR-based tools that you enjoy?
junit4-jfr a JUnit 4 extension that generates JFR events
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
What are some alternatives?
micrometer-jfr - A Micrometer meter registry that generates JFR events
container-jfr - Secure JDK Flight Recorder management for containerized JVMs
prometheus-jfr-exporter - a collector that scrapes JFR events from a JVM target at runtime for Prometheus to use
junit-jfr - a JUnit 5 extension that generates JFR events
newrelic-jfr-core - JFR library that adapts JFR events to the New Relic Telemetry SDK
jmh - https://openjdk.org/projects/code-tools/jmh
jfr-maven-extension - a Maven extension generates JFR events for a Maven build
jfr-libraries - a list of libraries that generate JFR events
jfrunit - A JUnit extension for asserting JDK Flight Recorder events
Arthas - Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas
jfr-resttemplate - a RestTemplate that generates JFR events
opentelemetry-java-instrumentation - OpenTelemetry auto-instrumentation and instrumentation libraries for Java