OCaml Users and Developers Workshop 2015

OCaml Users and Developers Workshop 2015 will take place the 2015-09-08 and will be held at Vancouver, British Columbia, Canada
19 Sep 2015
Videos of the talks are online
31 Jul 2015
programme and call for participation

Call for presentations (past)


Discussions will focus on the practical aspects of OCaml programming and the nitty gritty of the tool-chain and upcoming improvements and changes. Thus, we aim to solicit talks on all aspects related to improving the use or development of the language and of its programming environment, including, for example:

  • compiler developments, new backends, runtime and architectures

  • practical type system improvements, such as (but not limited to) GADTs, first-class modules, generic programming, or dependent types

  • new library or application releases, and their design rationales

  • tools and infrastructure services, and their enhancements

  • prominent industrial or experimental uses of OCaml, or deployments in unusual situations.


It will be an informal meeting, with an online scribe report of the meeting, but no formal proceedings. Slides of presentations will be available online from the workshop homepage. The presentations will likely be recorded, and made available at a later time.

To submit a talk, please register a description of the talk (about 2 pages long) at https://easychair.org/conferences/?conf=ocaml2015, providing a clear statement of what will be brought by the talk: the problems that are addressed, the technical solutions or methods that are proposed. If you wish to perform a demo or require any special setup, we will do our best to accommodate you.

ML family workshop and post-proceedings

The ML family workshop, held on the previous day, deals with general issues of the ML-style programming and type systems, and is seen as more research-oriented. Yet there is an overlap with the OCaml workshop, which we are keen to explore, for instance by having a common session. The authors who feel their submission fits both workshops are encouraged to mention it at submission time and/or contact the Program Chairs.

Questions and contact

If you have any questions, please e-mail: Damien Doligez

All Presentations

Title Authors Resources
Towards A Debugger for Native-Code OCaml Fabrice Le Fessant, Pierre Chambart Link
Operf: Benchmarking the OCaml Compiler Pierre Chambart, Fabrice Le Fessant, Vincent Bernardoff Link
Core.Time_stamp_counter: A fast high resolution time source Roshan James, Christopher Hardin Link
Specialization of Generic Array Accesses After Inlining Ryohei Tokuda, Eijiro Sumii, Akinori Abe Link
Inline Assembly in OCaml Vladimir Brankov Link
The State of OCaml (invited talk) Xavier Leroy Link
The State of the OCaml Platform: September 2015 Anil Madhavapeddy, Amir Chaudhry, Thomas Gazagnaire, Jeremy Yallop, David Sheets Link
Modular macros Jeremy Yallop, Leo White
Typeful PPX and Value Implicits Jun Furuse Link
Global Semantic Analysis on OCaml programs Thomas Blanc, Pierre Chambart, Michel Mauny, Fabrice Le Fessant Link
Effective Concurrency through Algebraic Effects Stephen Dolan, Leo White, Kc Sivaramakrishnan, Jeremy Yallop, Anil Madhavapeddy Link
A review of the growth of the OCaml community Amir Chaudhry Link
Persistent Networking with Irmin and MirageOS Mindy Preston, Magnus Skjegstad, Thomas Gazagnaire, Richard Mortier, Anil Madhavapeddy Link
Ketrew and Biokepi Sebastien Mondet Link
Four years of OCaml in production Anders Fugmann, Jonas B. Jensen, Mads Hartmann Jensen

Workshop Details

Organising Committee
Mark Shinwell (Jane Street Europe, UK (chair))
Program Committee
Ashish AGARWAL (Solvuu, USA), Sandrine BLAZY (U. Rennes 1, France), Cristiano CALCAGNO (Facebook, USA), Emmanuel CHAILLOUX (U. Paris 6, France), Pierre CHAMBART (OCamlPro, France), Damien DOLIGEZ (Jane Street, USA and Inria, France (chair)), Martin JAMBON (Esper, USA), Keigo IMAI (Kyoto University, Japan), Julien VERLAGUET (Facebook, USA), Markus WEISSMAN (TU. Muenchen, Germany), Jeremy YALLOP (OCaml Labs, UK)