ChronicleMap – Java Architecture with Off Heap Memory

My last post was written a couple of weeks ago and after some valid feedback I’d like to clarify a…

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Creating Millions of Objects with Zero Garbage

As noted in First rule of performance optimisation, garbage is the enemy of fast code. Not only can it destroy any sort…

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Turning on GC logging at runtime

There is always the next JVM behaving badly. And you know by heart that if you just could have had…

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Minor GC vs Major GC vs Full GC

While working with the GC pause detection functionality in Plumbr I was forced to work my way through loads of…

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How JVMTI tagging can affect GC pauses

This post is analyzing why and how Plumbr Agents extended the length of GC pauses on certain occasions. Troubleshooting the underlying problem…

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JVM is down with “OutOfMemory” error – what should I do?

Amazing as it may seem, but this particular cry “From the Depths” is frequently displayed among the results of search…

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Adaptive heap sizing

While enhancing our test bed to improve the Plumbr GC problem detector,  I ended up writing a small test case…

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Revealing the length of Garbage Collection pauses

There are several ways to improve your product. One such way is to carefully track what your users are experiencing…

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Reducing the frequency of major GC pauses

This post will discuss a technique to reduce the burden garbage collection pauses put on the latency of your application.…

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