A code collection of popular sort algorithms coded using java - play-Arena/sort-algorithms-with-java... (more…)

We write articles like this regularly. Let's keep in touch and: (more…)

Here I describe five concise ways to copy file using java FileInputStream, NIO FileChannel class, Java 7 Files class, Guava API and Apache common IO. (more…)

Almost all of Twitter’s services run on the Java Virtual Machine platform. We have a team of engineers who work on performance improvements to our own custom version of the OpenJDK JVM. We ar... (more…)

About a month ago, I had the pleasure of taking a tutorial led by the fantastic Brendan Gregg on creating FlameGraphs using the Linux perf toolset. I recommend reading his many blog posts on the subject, but in short: while perf is an excellent resource f...