Old Generation GC and cache performance?
This is a question as much as a discussion, I can’t find a lot of detail on the state of play in this area and would really welcome any feedback or corrections. Please don’t read this as a negative article as that is not how it is intended; it’s in the optimisation section but I’m not sure what impact it really...
Are we prone to over optimising code?
As a developer I often feel the need to performance tune code, or write "the best piece of code ever". Sometimes this happens even before I know which sections of the code will be executed frequently? These days I make every attempt to hold back from this approach. In applications where performance is critical I usually write it the most natural...
GC monitoring in Java with Jstat
Recently I had a few performance problems with an application that required JVM GC monitoring. It had been so long since the last time I'd had to perform any CG analysis that I had to remind myself of what to do! Using jps and jstat to get JVM GC statistics First, ensure that an appropriate JDK is on your path Next,...
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