Writing Concurrent Code with Lock-Free Algorithms

Course Details

Next Delivery: TBD
Location: Instil HQ, Belfast
Duration: 3 Days

Backed by many years of hard-won experience, Martin has created a truly inspiring and challenging course for Java and C++ programmers interested in building low-latency, high-throughput systems.

Taking a unique hardware-up approach, Martin will teach you how to build code that reaches world-class performance levels.

About The Trainer

Martin Thompson is one of the world’s foremost experts on concurrency and low-latency software.

Having spent many years designing and developing systems for some of the busiest exchanges in the world, Martin now works as an independent consultant and trainer.

Martin is in huge demand both as a conference speaker and as a trainer, and has been packing in the crowds at JavaOne, QCon, GOTO, and much more besides.


Ideally you should bring a Linux-based laptop capable of running at least 4 concurrent threads. That is, a quad core or dual core with hyperthreading. You should also have Java 7 and your favourite IDE installed. Everything else, including lunch, will be provided.


By the end of this course candidates will have acquired a new in-depth knowledge of concurrent programming that allows them to develop data structures such as queues, executors, and shared memory IPC transports that significantly out perform any products currently available.

In addition to learning the basic techniques of building high-performance data structures, a performance testing and profiling discipline will be introduced that is fundamental to working at the extremes of systems performance.

Understanding Mechanical Sympathy
  • Performance considerations on modern hardware
  • How modern x86-64 hardware informs concurrent and high performance programming techniques
  • Memory models for software and hardware
  • Why contention of any type is the enemy and how to avoid it
  • How we manage contention when we absolutely must
  • How the JVM provides support for concurrent programs
  • Profiling and performance testing
Concurrent and High-performance Algorithm Design
  • Lock-free concurrency primitives
  • Signalling state change
  • Ensuring order
  • Concurrent data structures – Queues, Dynamic Lists, Executors, Shared memory IPC, Locks
  • Preventing speculative execution during critical data exchanges
  • Managing contended state
  • Wait-free techniques
  • API design to avoid the latency J-curve
  • Efficient back-off strategies
  • Discovering hidden contention and how to avoid it

Recent Feedback

“This course was really great. It changed the way I think about all my programming work, not just with concurrent systems.”

“Excellent course materials and code examples, helping you to try things for yourself and learn by doing. The course has provided a wealth of useful information. Martin also covered interesting areas on request in order to tailor parts to the interest of participants. The most useful course I”ve ever done. ”

“The course is excellent, the materials very well prepared, the off the cuff discussions invaluable.”

“Great class. Martin really knows his stuff. He also struck a good balance between talking through concepts and having us do hands-on exercises. ”

“I feel it would be very worthwhile for all serious developers to think about attending (this course)!”

Gareth was a excellent instructor. Very helpful and enjoyed the course.
The course was straightforward and direct. It was analysed every aspect of the technology. I was able to project its use into the daily work by identifying, in each project, the elements involved that I could have improved.
Great delivery of advanced topics in Java!
A perfect intro to JSF. As usual - Garth kept me fully entertained throughout. Pace in the first day was a little slow - but it was picked up well in the afternoon when Garth realised that most of the group had experience. Great work!

Not seeing a course you need? We offer customised versions of many of our courses and are always pleased to chat about your specific needs.

We also offer pre- and post-workshop guidance and mentoring to help facilitate the introduction of training material into your organisation.