NDLI: Thinking Inside the Box: Compartmentalized Garbage Collection

Content Provider	ACM Digital Library
Author	Brunthaler, Stefan Larsen, Per Franz, Michael Wagner, Gregor
Copyright Year	2016
Abstract	The web browser is the “new desktop.” Not only do many users spend most of their time using the browser, the browser has also become host to rich and dynamic applications that were previously tailored to each individual operating system. The lingua franca of web scripting, JavaScript, was pivotal in this development. Imagine that all desktop applications allocated memory from a single heap managed by the operating system. To reclaim memory upon application shutdown, all processes would then be garbage collected—not just the one being quit. While operating systems improved upon this approach long ago, this was how browsers managed memory until recently. This article explores $\textit{compartmentalized}$ memory management, an approach tailored specifically to web browsers. The idea is to partition the JavaScript heap into compartments and allocate objects to compartments based on their origin. All objects in the same compartment reference each other direct, whereas cross-origin references go through wrapper objects. We carefully evaluate our techniques using Mozilla’s Firefox browser—which now ships with our enhancements—and demonstrate the benefits of collecting each compartment independently. This simultaneously improves runtime performance (up to 36%) and reduces garbage collection pause times (up to 75%) as well as the memory footprint of the browser. In addition, enforcing the same-origin security policy becomes simple and efficient with compartments.
Starting Page	1
Ending Page	37
Page Count	37
File Format	PDF
ISSN	01640925
e-ISSN	15584593
DOI	10.1145/2866576
Volume Number	38
Issue Number	3
Journal	ACM Transactions on Programming Languages and Systems (TOPLAS)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2016-04-08
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Garbage collection Isolation Memory management Web-browser architecture
Content Type	Text
Resource Type	Article
Subject	Software

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Compartmental memory management in a modern web browser

Compartmental memory management in a modern web browser

Idle time garbage collection scheduling

Idle time garbage collection scheduling

Conservative garbage collection for general memory allocators

Shared heap management for memory-limited java virtual machines

Tracing garbage collection on highly parallel platforms

The transactional memory / garbage collection analogy

Reducing pause time of conservative collectors

Thinking Inside the Box: Compartmentalized Garbage Collection

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Conservative garbage collection for general memory allocators

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Thinking Inside the Box: Compartmentalized Garbage Collection