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Cold object identification in the Java virtual machine
Author(s) -
Briggs Kim T.,
Zhou Baoguo,
Dueck Gerhard W.
Publication year - 2017
Publication title -
software: practice and experience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 70
eISSN - 1097-024X
pISSN - 0038-0644
DOI - 10.1002/spe.2396
Subject(s) - heap (data structure) , computer science , java , correctness , marshalling , programming language , operating system , stack (abstract data type)
Summary Many Java applications instantiate objects within the Java heap that are persistent but seldom if ever referenced by the application. Examples include strings, such as error messages, and collections of value objects that are preloaded for fast access. This paper describes a stack‐based framework for detecting these ‘cold’ objects at runtime, with a view to marshaling and sequestering them in designated regions of the heap where they may be preferentially paged out to a backing store, thereby freeing physical memory pages for occupation by more active objects. Furthermore, we evaluate the correctness and efficiency of stack‐based approach with an access barrier. The experimental results from a series of SPECjvm2008 benchmarks are presented. Copyright © 2016 John Wiley & Sons, Ltd.