giltene

wrk2

A constant throughput, correct latency recording variant of wrk

jHiccup

jHiccup is a non-intrusive instrumentation tool that logs and records platform "hiccups" - including the JVM stalls that often happen when Java applications are executed and/or any OS or hardware platform noise that may cause the running application to not be continuously runnable.

PauselessHashMap

A java.util.HashMap compatible map that won't stall puts or gets when resizing

HeapFragger

HeapFragger: A heap fragmentation inducer

HeapUseWatcher

HeapUseWatcher: A simple tracker of non-ephemeral heap use and live set

GilExamples

LoadMeter

A tool that records instantaneous linux load (runnabel thread count) in 1mec intervals and logs it in jHiccup-like format

DeveloperJMMCookbook

A JMM Cookbook for Java Developers(as opposed to a cookbook for Compiler Writers)

HeapPrimer

HdrHistogram

A High Dynamic Range (HDR) Histogram

jdkTestingMatrix

lz4-java

LZ4 compression for Java

wrk

Modern HTTP benchmarking tool

ZingGCReporter

A GC stats reporter example for Zing

aeron

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

agrona

High Performance data structures and utility methods for Java

examples

Code Examples

ioHiccup

jabba

(cross-platform) Java Version Manager

JackHammer

metrics

Capturing JVM- and application-level metrics. So you know what's going on.

mockito

Most popular Mocking framework for unit tests written in Java

nitrite-java

Java embedded nosql document store

ScheduledClassLoadingAgent

setup-java

Set up your GitHub Actions workflow with a specific version of Java