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PLDI 2021
Sun 20 - Sat 26 June 2021 PLDI
Fri 25 Jun 2021 13:55 - 14:00 at PLDI-A - Talks 6A: Language Implementation
Sat 26 Jun 2021 01:55 - 02:00 at PLDI-A - Talks 6A: Language Implementation

Object Oriented Programming has flourished in many areas ranging from web-oriented microservices, data processing, to databases. However, while representing domain entities as objects is appealing to developers, it leads to data fragmentation, resulting in high memory footprint and poor locality.

To improve memory footprint and memory locality, embedding the payload of an object into another (object inlining) has been proposed, however, with severe limitations. We argue that object inlining is mostly useful to optimize objects in the application data-path and that such objects have value semantics, unlocking great potential for inlining objects.

We propose value fields, an abstraction which allows fields to be marked as having value semantics. We take advantage of the closed-world assumption provided by GraalVM Native Image to implement Object inlining. Results show that using value fields requires minimal to no effort from developers and leads to improvements in throughput of up to 3x, memory footprint of up to 40%, and GC pause times of up to 35%.

Fri 25 Jun

Displayed time zone: Eastern Time (US & Canada) change

13:30 - 14:05
Talks 6A: Language ImplementationPLDI at PLDI-A +12h
13:30
5m
Talk
Hashing Modulo Alpha-Equivalence
PLDI
Krzysztof Maziarz Microsoft, Tom Ellis Microsoft, Alan Lawrence Microsoft, Andrew Fitzgibbon Microsoft, Simon Peyton Jones Microsoft
DOI
13:35
5m
Talk
An Efficient Interpreter for Datalog by De-specializing Relations
PLDI
Xiaowen Hu University of Sydney, David Zhao University of Sydney, Herbert Jordan Innsbruck University, Bernhard Scholz University of Sydney
DOI
13:40
5m
Talk
Distance-in-Time versus Distance-in-Space
PLDI
Mahmut Taylan Kandemir Pennsylvania State University, Xulong Tang University of Pittsburgh, Hui Zhao University of North Texas, Jihyun Ryoo Pennsylvania State University, Mustafa Karakoy TUBITAK-BILGEM
DOI
13:45
5m
Talk
High Performance Correctly Rounded Math Libraries for 32-bit Floating Point Representations
PLDI
Jay P. Lim Rutgers University, Santosh Nagarakatte Rutgers University
DOI Pre-print
13:50
5m
Talk
Retrofitting Effect Handlers onto OCaml
PLDI
KC Sivaramakrishnan IIT Madras, Stephen Dolan OCaml Labs, Leo White Jane Street, Tom Kelly OCaml Labs, Sadiq Jaffer Opsian and OCaml Labs, Anil Madhavapeddy OCaml Labs
Link to publication DOI Media Attached
13:55
5m
Talk
Compiler-Assisted Object Inlining with Value Fields
PLDI
Rodrigo Bruno INESC-ID / IST, ULisboa, Vojin Jovanovic Oracle Labs, Christian Wimmer Oracle Labs, Gustavo Alonso ETH Zurich
DOI
14:00
5m
Talk
Concise, Type-Safe, and Efficient Structural Diffing
PLDI
Sebastian Erdweg JGU Mainz, Tamás Szabó JGU Mainz; Workday, André Pacak JGU Mainz
DOI

Sat 26 Jun

Displayed time zone: Eastern Time (US & Canada) change

01:30 - 02:05
Talks 6A: Language ImplementationPLDI at PLDI-A
01:30
5m
Talk
Hashing Modulo Alpha-Equivalence
PLDI
Krzysztof Maziarz Microsoft, Tom Ellis Microsoft, Alan Lawrence Microsoft, Andrew Fitzgibbon Microsoft, Simon Peyton Jones Microsoft
DOI
01:35
5m
Talk
An Efficient Interpreter for Datalog by De-specializing Relations
PLDI
Xiaowen Hu University of Sydney, David Zhao University of Sydney, Herbert Jordan Innsbruck University, Bernhard Scholz University of Sydney
DOI
01:40
5m
Talk
Distance-in-Time versus Distance-in-Space
PLDI
Mahmut Taylan Kandemir Pennsylvania State University, Xulong Tang University of Pittsburgh, Hui Zhao University of North Texas, Jihyun Ryoo Pennsylvania State University, Mustafa Karakoy TUBITAK-BILGEM
DOI
01:45
5m
Talk
High Performance Correctly Rounded Math Libraries for 32-bit Floating Point Representations
PLDI
Jay P. Lim Rutgers University, Santosh Nagarakatte Rutgers University
DOI Pre-print
01:50
5m
Talk
Retrofitting Effect Handlers onto OCaml
PLDI
KC Sivaramakrishnan IIT Madras, Stephen Dolan OCaml Labs, Leo White Jane Street, Tom Kelly OCaml Labs, Sadiq Jaffer Opsian and OCaml Labs, Anil Madhavapeddy OCaml Labs
Link to publication DOI Media Attached
01:55
5m
Talk
Compiler-Assisted Object Inlining with Value Fields
PLDI
Rodrigo Bruno INESC-ID / IST, ULisboa, Vojin Jovanovic Oracle Labs, Christian Wimmer Oracle Labs, Gustavo Alonso ETH Zurich
DOI
02:00
5m
Talk
Concise, Type-Safe, and Efficient Structural Diffing
PLDI
Sebastian Erdweg JGU Mainz, Tamás Szabó JGU Mainz; Workday, André Pacak JGU Mainz
DOI