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Mon 19 Jun 2017 12:00 - 12:30 at Vertex WS216 - Morning II Chair(s): Elisa Gonzalez Boix

Just in Time (JIT) compilers and their aggressive speculative optimizations reduced the performance gap between dynamic and static languages drastically. To successfully speculate, compilers rely on the fact that the observed variability of programs at run time is low. However, there remain patterns of variability, which are hard to capture with heuristics. Specifically, ephemeral, warmup, rare, and highly indirect variability are challenges for today’s compiler heuristics. As a consequence, they can lead to reduced application performance. However, these types of variability are identifiable at the application level and could be mitigated with information provided by developers. As a solution, we propose a metaobject protocol for dynamic compilation systems to enable application developers to provide such information at run time. As a proof of concept, we demonstrate performance improvements for a few scenarios in a dynamic language built on top of the Truffle and Graal system.

Slides (Chari.pdf)3.63MiB
preprint (a3-chari.pdf)131KiB

Mon 19 Jun

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

11:00 - 12:30
Morning IIICOOOLPS at Vertex WS216
Chair(s): Elisa Gonzalez Boix Vrije Universiteit Brussel
11:00
30m
Talk
dart2java: Running Dart in Java-based Environments
ICOOOLPS
Matthias Springer Tokyo Institute of Technology, Andrew Krieger University of California, Los Angeles, Stanislav Manilov University of Edinburgh, Hidehiko Masuhara Tokyo Institute of Technology
Link to publication DOI File Attached
11:30
30m
Talk
VM Wrapping - Fake it till you make it
ICOOOLPS
Johannes Henning Hasso Plattner Institute, Tim Felgentreff Hasso-Plattner-Institute, Potsdam, Robert Hirschfeld HPI
Link to publication DOI File Attached
12:00
30m
Talk
A Metaobject Protocol for Optimizing Application-Specific Run-Time Variability
ICOOOLPS
Guido Chari University of Buenos Aires, Argentina, Diego Garbervetsky University of Buenos Aires, Argentina, Stefan Marr Johannes Kepler University Linz
Link to publication DOI File Attached