NDLI: GC assertions:using the garbage collector to check heap properties

Content Provider	ACM Digital Library
Author	Guyer, Samuel Z. Aftandilian, Edward E.
Abstract	This paper introduces GC assertions, a system interface that programmers can use to check for errors, such as data structure invariant violations, and to diagnose performance problems, such as memory leaks. GC assertions are checked by the garbage collector, which is in a unique position to gather information and answer questions about the lifetime and connectivity of objects in the heap. By piggybacking on existing garbage collector computations, our system is able to check heap properties with very low overhead -- around 3% of total execution time -- low enough for use in a deployed setting. We introduce several kinds of GC assertions and describe how they are implemented in the collector. We also describe our reporting mechanism, which provides a complete path through the heap to the offending objects. We report results on both the performance of our system and the experience of using our assertions to find and repair errors in real-world programs.
Starting Page	235
Ending Page	244
Page Count	10
File Format	PDF
ISSN	03621340 15581160
DOI	10.1145/1543135.1542503
Journal	ACM SIGPLAN Notices (SIGP)
Volume Number	44
Issue Number	6
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1983-05-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Garbage collection Dynamic analysis Heap properties
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Software

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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
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