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LMAX Exchange blog - FX industry thought leadership

All the latest business and technology views and insights on the FX industry from LMAX Exchange management and staff

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Mike Barker

Release of Disruptor 3.0.0

I’ve decided that I’m a bit bored of the whole putting a beta tag on various versions of the Disruptor so I’ve decide to send forth Disruptor 3.0.0 into the world. The big challenges of this release were to clean up the code and come up with a better algorithm for handling multiple producers. If I was lucky, make it even faster. I went down a couple of dark alleys initially with this release, but have come up again for air with a version that is less different to the 2.x version, but still brings some nice benefits. I had [...]

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Speaking at Tech Mesh

I’m happy to announce that I will speaking at Tech Mesh in December. I’ll be speaking about the Disruptor from two perspectives, firstly looking briefly back at some of the history and motivations behind the Disruptor. Then spending some time explaining at the challenges of building high performance concurrent systems (like the Disruptor) and delving into how the JVM and hardware could change to support the development of these systems.

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Arithmetic Overflow and Intrinsics

During a recent conversation on the LJC mailing list around a proposal for adding a library to the JDK that would add support for handling integer overflow a question arose. Would the JVM be able to optimise this code to make efficient use of the hardware support for overflow detection if this functionality was implemented as a library. I made the comment that this is problem is probably one best solved using intrinsics, but in the course of writing an explanation I thought it would be better explained in a blog post, so here goes…

What is [...]

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Disruptor 2.10 Release

The Disruptor version 2.10 has been released. It is available from the Google Code download page and has been submitted to Maven central.

Changes

  • Remove deprecated timeout methods.
  • Added OSGI metadata to jar file.
  • Removed PaddedAtomicLong and use Sequence in all places.
  • Fix various generics warnings.
  • Change Sequence implementation to work around IBM JDK bug and improve performance by ~10%.
  • Add a remainingCapacity() call to the Sequencer class.

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Slides From Recent Presentations

My slides from JAX London – Beginner’s Guide to Hardcore Concurrency:

Beginners guide-concurrency

View more presentations from Michael Barker

Video: [email protected], JAX London

My slides from Devoxx – Disruptor Tools In Action:

Disruptor tools in action

View more presentations from Michael Barker

Video: Devoxx (Payment required)

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