Erik Ostermueller
eostermueller
A little bit obsessed with making software go fast. Author of Troubleshooting Java Performance from Apress.com. http://bit.ly/2017tjp
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Live Demonstrations of Java Performance Problems. Instructions: https://github.com/eostermueller/javaPerformanceTroubleshooting/wiki/Install-and-Run
Detect memory leaks in minutes without a heap dump.
A hands-on, self-directed java performance training platform. An easy to install uber jar with an Angular 13 GUI that orchestrates a load generator (JMeter), SUT with performance defects/fixes, and monitoring from glowroot.org.
littleMock is an easy-to-install demo environment for Java performance tuning. Runs on Windows/Mac/Linux.
A web app that traces and visualizes your app's JDBC activity.
In just a few minutes, install/launch grafana and influxdb using Docker. Built for Grafana scripted dashboarding, easy backups of influxdb, enhanced influxdb sql syntax, and writing jmxtrans.org data to influx.
Repositories
40A hands-on, self-directed java performance training platform. An easy to install uber jar with an Angular 13 GUI that orchestrates a load generator (JMeter), SUT with performance defects/fixes, and monitoring from glowroot.org.
Live Demonstrations of Java Performance Problems. Instructions: https://github.com/eostermueller/javaPerformanceTroubleshooting/wiki/Install-and-Run
2.0 source code for Troubleshooting Java Performance, from Apress.com
A Maven 3 plugin for interacting with the H2 database.
littleMock is an easy-to-install demo environment for Java performance tuning. Runs on Windows/Mac/Linux.
Angular app that reproduces problem with vscode debugging: https://stackoverflow.com/a/71011457/2377579
No description provided.
Plugin for JMeter that allows to write load test data on-the-fly to influxDB.
In just a few minutes, install/launch grafana and influxdb using Docker. Built for Grafana scripted dashboarding, easy backups of influxdb, enhanced influxdb sql syntax, and writing jmxtrans.org data to influx.
No description provided.
A tool for mocking HTTP services
A web app that traces and visualizes your app's JDBC activity.
Detect memory leaks in minutes without a heap dump.
Java demo of differences between launching windows and mac processes
Maven: start multiple processes in pre-integration-test phase in order.
No description provided.
Easily compare on a single graph, response times from all recent performance tests. Supports throughput and other JMeter metrics too. A Grafana/InfluxDB solution for fantastic apples-to-apples comparisons of your JMeter load tests.
Run any Angular app under Spring Boot. Comes with Angular 8.rc8 hello world app. Tested with openjdk 10 and 11.
See demo at
Coming Soon! A library of Java performance defects, live and under load
Here in this post, I am going to explain a bit about one of the Angular 7 feature, which is Virtual Scrolling. At the end of this article, you will have an application which fetches the real data from the database and binds it to the UI by using Virtual Scrolling feature.
Angular 7 application showcasing Pagination and Virtual Scroll using Angular Material
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Great performance from seldom used techniques for processing XML with Java
Grafana InfluxDB scripted dashboard
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Sample Java code that creates dummy SQL metrics in an InfluxDB for viewing in Grafana.
jHiccup is a non-intrusive instrumentation tool that logs and recordsplatform "hiccups" - including the JVM stalls that often happen whenJava applications are executed and/or any OS or hardware platform noisethat may cause the running application to not be continuously runnable.
example of simple junit test of JDBC/SQL that hits an H2 in-memory database.
A JDBC driver wrapper and GUI to analyze statement performance