Blogs (9) >>
SPLASH 2016
Sun 30 October - Fri 4 November 2016 Amsterdam, Netherlands
Thu 3 Nov 2016 13:30 - 13:55 at Matterhorn 1 - Runtime Support Chair(s): Laurence Tratt

We are in the multi-core era. Dynamically-typed languages are in widespread use, but their support for multithreading still lags behind. One of the reasons is that the sophisticated techniques they use to efficiently represent their dynamic object models are often unsafe in multithreaded environments.

This paper defines safety requirements for dynamic object models in multithreaded environments. Based on these requirements, a language-agnostic and thread-safe object model is designed that maintains the efficiency of sequential approaches. This is achieved by ensuring that field reads do not require synchronization and field updates only need to synchronize on objects shared between threads.

Basing our work on JRuby+Truffle, we show that our safe object model has zero overhead on peak performance for thread-local objects and only 3% average overhead on parallel benchmarks where field updates require synchronization. Thus, it can be a foundation for safe and efficient multithreaded VMs for a wide range of dynamic languages.

Thu 3 Nov

Displayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change

13:30 - 15:10
Runtime SupportOOPSLA at Matterhorn 1
Chair(s): Laurence Tratt King's College London
13:30
25m
Talk
Efficient and Thread-Safe Objects for Dynamically-Typed LanguagesAEC
OOPSLA
Benoit Daloze JKU Linz, Austria, Stefan Marr Johannes Kepler University Linz, Daniele Bonetta Oracle Labs, Hanspeter Mössenböck JKU Linz, Austria
DOI Pre-print Media Attached
13:55
25m
Talk
Hybrid STM/HTM for Nested Transactions on OpenJDKAECDistinguished Paper Award
OOPSLA
Keith Chapman Purdue University, Tony Hosking Australian National University, Data61, and Purdue University, Eliot Moss University of Massachusetts Amherst
Link to publication DOI Pre-print Media Attached
14:20
25m
Talk
Makalu: Fast Recoverable Allocation of Non-volatile Memory
OOPSLA
Kumud Bhandari Rice University, USA, Dhruva Chakrabarti , Hans-J. Boehm Google
DOI Pre-print Media Attached
14:45
25m
Talk
Prioritized Garbage Collection: Explicit GC Support for Software Caches
OOPSLA
Diogenes Nunez Tufts University, Sam Guyer Tufts University, Emery D. Berger University of Massachusetts, Amherst
DOI Pre-print Media Attached