Disruptor 2.0

[Jimit Ndiaye]

Disruptor 2.0 for Java has now been released. How soon can we expect Disruptor-net to follow suite?

[Olivier Deheurles]

I have ported all changes, trunk is at the same level. I need to produce packages and fix the wiki, that's it

Olivier

[Adam Mills]

Submitted patch for bug in current event processor, sequence not being updated after event processed.
While loop's scope had been cut short
http://code.google.com/p/disruptor-net/issues/detail?id=7

[Jimit Ndiaye]

Does this include the performance tuning mentioned here? I realize some of that is specific to the Java version but has any of that made it across?

[Olivier Deheurles]

Thanks for that, I'll have a look

Olivier

[Olivier Deheurles]

Hi,

I had a look to the patch and can now explain :)

This was not a bug, it was by design.

Each EventProcessor keeps track of the current sequence it has processed.

In previous revisions the sequence was a volatile long so every read and write operation was emitting a fence.
As an optimization, instead of writing the sequence for every single event I was "throttling" this publication (to prevent paying the cost of the fence each time).
This optimization was only applied to the last EventProcessor of a chain so there was no risk of slowing down dependent event processors.

The sequence is now no longer using a volatile write in more recent revisions (ie. No fence emitted) so this optimization no longer make sense and I removed it.

Olivier

-----Message d'origine-----
De : disrup...@googlegroups.com [mailto:disrup...@googlegroups.com] De la part de Olivier Deheurles
Envoyé : jeudi 1 septembre 2011 08:56
À : disrup...@googlegroups.com
Objet : Re: Disruptor 2.0

[Jimit Ndiaye]

The Java Disruptor is now at v2.6, major additions being the new worker pool implementation. Any idea when Disruptor-net will catch up? Thanks for an awesome project by the way.

[Olivier Deheurles]

Hi,

Martin has been very productive over the last few weeks and I did not had much time to port the latest bits. As soon as I have a free weekend I will port all the new stuff ;)

Olivier