JVM
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Core Java
An open source JVM Sampling Profiler
It’s a well known deficiency of most existing sampling Java profilers that their collection of stack traces has to happen…
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Core Java
Allocating memory for the JVM: a case study
This post is about a recent performance tuning exercise. As always, these start with vague statements about symptoms. This time…
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Core Java
OutOfMemoryError: solution antipatterns
Throughout those years we have kept a close eye on the problems packaged in different flavours of OutOfMemoryError message. Daily…
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Core Java
Hardware Transactional Memory in Java, or why synchronized will be cool again
Overview Hardware Transaction Memory has the potential to allow multiple threads to speculatively access the same data structure at the…
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Core Java
sun.misc.Unsafe and off heap memory
The class sun.misc.Unsafe allows you to many of the things you shouldn’t be able to do in Java, but are…
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Core Java
How to estimate memory consumption?
This story goes back at least a decade, when I was first approached by a PHB with a question “How…
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Core Java
GC impact on throughput and latency
One type of the problems each and every Java application out there has to wrestle with is related to garbage…
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Core Java
Post-hoc tracing using a debugger
Once nice little features of most debuggers that I have been exercising recently is the ability to log information on…
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Core Java
Java vs. Native Agents – The Powerful Things They Do
What you should know before installing an agent, and how it affects your code When building a scalable server-side application…
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