Java Debugger – The Definitive List of Tools

Java debugging is a complex space. There are many types of debuggers, and numerous tools to choose from. In this…

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(Part 1 of 3): Synopsis of articles & videos on Performance tuning, JVM, GC in Java, Mechanical Sympathy, et al

I have been contemplating for a number of months about reviewing a cache of articles and videos on topics like Performance…

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G1 vs CMS vs Parallel GC

This post is following up the experiment we ran exactly a year ago comparing the performance of different GC algorithms…

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Investigating Memory Leaks Part 1 – Writing Leaky Code

I found this little problem the other day: there’s this server that runs for a while and then falls over.…

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Crashing your JVM

Thorough testing can be harmful as we discovered recently. Extending our test coverage led us to a several-hours debugging session…

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Java VM – Beware of the YoungGen space

As you may have seen from our previous performance oriented articles, a healthy JVM is one of the most important…

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What Garbage Collector are you using?

Our research labs are humming at full speed. With the recent injection of capital, we can only warrant that the…

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Java final fields on x86 a no-op?

I have always enjoyed digging in to the details of multi-threaded programming, and always enjoy that despite reading for years…

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Running out of memory without the OutOfMemoryError

This is actually a reincarnation of a post originally posted in ~2010. The flashback occurred when listening to our engineers…

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