Reference object processing in on-the-fly garbage collection

Author:

Ugawa Tomoharu1,Jones Richard E.2,Ritson Carl G.2

Affiliation:

1. Kochi University of Technology, Kami-city, Japan

2. University of Kent, Canterbury, United Kingdom

Abstract

Most proposals for on-the-fly garbage collection ignore the question of Java's weak and other reference types. However, we show that reference types are heavily used in DaCapo benchmarks. Of the few collectors that do address this issue, most block mutators, either globally or individually, while processing reference types. We introduce a new framework for processing reference types on-the-fly in Jikes RVM. Our framework supports both insertion and deletion write barriers. We have model checked our algorithm and incorporated it in our new implementation of the Sapphire on-the-fly collector. Using a deletion barrier, we process references while mutators are running in less than three times the time that previous approaches take while mutators are halted; our overall execution times are no worse, and often better.

Funder

Engineering and Physical Sciences Research Council

Japan Society for the Promotion of Science

Publisher

Association for Computing Machinery (ACM)

Subject

Computer Graphics and Computer-Aided Design,Software

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Transactional Sapphire;ACM Transactions on Programming Languages and Systems;2018-12-31

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