NDLI: Support for garbage collection at every instruction in a Java compiler

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Content Provider	ACM Digital Library
Author	Cierniak, Michał Stichnoth, James M. Lueh, Guei-Yuan
Abstract	A high-performance implementation of a Java Virtual $Machine^{1}$ requires a compiler to translate Java bytecodes into native instructions, as well as an advanced garbage collector (e.g., copying or generational). When the Java heap is exhausted and the garbage collector executes, the compiler must report to the garbage collector all live object references contained in physical registers and stack locations. Typical compilers only allow certain instructions (e.g., call instructions and backward branches) to be GC-safe; if GC happens at some other instruction, the compiler may need to advance execution to the next GC-safe point. Until now, no one has ever attempted to make every compiler-generated instruction GC-safe, due to the perception that recording this information would require too much space. This kind of support could improve the GC performance in multithreaded applications. We show how to use simple compression techniques to reduce the size of the GC map to about 20% of the generated code size, a result that is competitive with the best previously published results. In addition, we extend the work of Agesen, Detlefs, and Moss, regarding the so-called "JSR Problem" (the single exception to Java's type safety property), in a way that eliminates the need for extra runtime overhead in the generated code.
Starting Page	118
Ending Page	127
Page Count	10
File Format	PDF
ISBN	1581130945
DOI	10.1145/301618.301652
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1999-05-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Garbage collection Java Compilers
Content Type	Text
Resource Type	Article

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

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