Elasticsearch Indexing Performance Cheatsheet
05/09/14
You plan to index large amounts of data in Elasticsearch? Or you are already trying to do so but it turns out that throughput is... Read more
Posts about Performance
Faster and Cleaner Code since Java 7
Every Java developer with more than a few months of coding experience has written code like this before: try {... Read more
Writing better Caches in Action: Improving Joda Time
Working with time and date in any programming language is a mess. To get an idea how much of an... Read more
Ceph Object Storage as fast as it gets or Benchmarking Ceph
03/03/14
CenterDevice is a distributed document management and sharing software without any single centralized component. In our next evolution we are... Read more
Why 35GB Heap is Less Than 32GB – Java JVM Memory Oddities
When I run the following Java program, which consumes all free memory with artificial data structures, something interesting happens. Something... Read more
Debunking the APM myth busters
Today I’ve read a blog entry by Roman Spitzbart that is titled APM Myth Busters: Sampling is as Good as... Read more
Automating JMeter tests with Maven and Jenkins
In this post, I will show how to integrate the popular load testing tool JMeter in a Maven build. The... Read more
Lightweight Virtual Machines Made Simple with Docker or How to Run 100 Virtual Machines
01/06/14
Running virtual machines has many benefits. They utilize your hardware much better, are easy to backup and exchange, and isolate... Read more
Useful JVM Flags – Part 8 (GC Logging)
01/05/14
The last part of this series is about garbage collection logging and associated flags. The GC log is a highly... Read more