Allocation free logging with log4j2

Introduction Recently I was working for a client trying to remove some GC pauses for a large well crafted Java…

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JLBH Examples 4 – Benchmarking QuickFix vs ChronicleFix

In this post: Using JLBH to test QuickFIX Observing how QuickFix latencies degrade through the percentiles Comparing QuickFIX with Chronicle…

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JLBH Examples 3 – The Affects of Throughput on Latency

In this post: A discussion about the effects of thoughput on latency How use JLBH to measure TCP loopback Adding…

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JLBH Examples 2 – Accounting for Coordinated Omission

In this post: Running JLBH with and without accounting for coordinated omission An example to in numbers the effects of…

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JLBH Examples 1 – Why Code Should be Benchmarked in Context

In this post: A side by side example using JMH and JLBH for Date serialisation Measuring Date serialisation in a…

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JLBH – Introducing Java Latency Benchmarking Harness

In this Post: What is JLBH Why did we write JLBH Differences between JMH and JLBH Quick start guide  …

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Learn about JDK9 Compact Strings (Video review Charlie Hunt)

JDK 9 introduces a new feature called Compact Strings.  Given the ubiquity of Strings in Java programs I feel that…

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Writing 2 Characters into a Single Java char

Here’s another nice trick we used when creating the ultra low latency Chronicle FIX-Engine. When it comes to reading data…

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How long does it take the jvm to effect escape analysis? Maybe longer than you think.

This post looks at escape analysis, in particular how long it takes for the jvm to effect escape analysis in…

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