Performance
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Core Java
HotSpot GC Thread CPU footprint on Linux
The following question will test your knowledge on garbage collection and high CPU troubleshooting for Java applications running on Linux…
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Core Java
Arrays.sort versus Arrays.parallelSort
We all have used Arrays.sort to sort objects and primitive arrays. This API used merge sort OR Tim Sort underneath…
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Core Java
Java StringBuilder myth debunked
The myth Concatenating two Strings with the plus operator is the source of all evil — Anonymous Java dev NOTE:…
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Core Java
OpenJPA: Memory Leak Case Study
This article will provide the complete root cause analysis details and resolution of a Java heap memory leak (Apache OpenJPA…
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Enterprise Java
Adding Turbochargers to JEE Apps
One of the key roles, I play is evangelizing Akka within my local community. As part of the discussions, the…
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Scala
Scaling Scala vs Java
In my previous post I showed how it makes no sense to benchmark Scala against Java, and concluded by saying…
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Scala
Benchmarking Scala against Java
A question recently came up at work about benchmarks between Java and Scala. Maybe you came across my blog post…
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Enterprise Java
Performance Analysis of REST/HTTP Services with JMeter and Yourkit
My last post described how to accomplish stress- or load-testing of asynchronous REST/HTTP services with JMeter. However, running such tests…
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Software Development
Opinion: Performance Testing
Performance tuning an application is time consuming, and expensive. Useful tests often need dedicated hardware to run on. It’s specialised…
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