Why we shouldn’t use more threads than we need to

Overview There is a common argument that because we have lots of cores, and will have even more in the…

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Unique hashCodes is not enough to avoid collisions

There is a common misconception that if you have unique hashCode() you won’t have collisions.  While unique, or almost unique,…

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C++ like Java for low latency

Overview Previously I wrote an article on C like Java.  This is term I had come across before. However, on…

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OpenHFT Java Lang project

OpenHFT/Java Lang started as an Apache 2.0 library to provide the low level functionality used by Java Chronicle without the…

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Micro jitter, busy waiting and binding CPUs

Performance profiling a new machine When I work on a new machine, I like to get an understanding of it’s…

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Why a synchronized StringBuffer was never a good idea

Introduction StringBuffer is a synchronized class for mutable strings.  The main problem with making it synchronized is that It was…

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Lies, statistics and vendors

Overview Reading performance results supplied by vendors is a skill in itself.   It can be difficult to compare numbers…

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Chronicle and the Micro-Cloud

Overview A common question I face is; how do you scale a Chronicle based system if it is single writer,…

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Java is dead (again)

Here is a couple of responses to this annual question I thought worth sharing: The Day Java lost the Battle…

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