Monitors and exceptions: how to implement Java efficiently
1998; Wiley; Volume: 10; Issue: 11-13 Linguagem: Inglês
10.1002/(sici)1096-9128(199809/11)10
ISSN1096-9128
Autores Tópico(s)Distributed and Parallel Computing Systems
ResumoConcurrency: Practice and ExperienceVolume 10, Issue 11-13 p. 837-850 Research Article Monitors and exceptions: how to implement Java efficiently Andreas Krall, Corresponding Author Andreas Krall Institut für Computersprachen, Technische Universität Wien, Argentinierstraße 8, A-1040 Wien, Austria URL: http://www.complang.tuwien.ac.at/andi/Institut für Computersprachen, Technische Universität Wien, Argentinierstraße 8, A-1040 Wien, AustriaSearch for more papers by this authorMark Probst, Mark Probst Institut für Computersprachen, Technische Universität Wien, Argentinierstraße 8, A-1040 Wien, Austria URL: http:/www.unix.cslab.tuwien.ac.at/˜schani/Search for more papers by this author Andreas Krall, Corresponding Author Andreas Krall Institut für Computersprachen, Technische Universität Wien, Argentinierstraße 8, A-1040 Wien, Austria URL: http://www.complang.tuwien.ac.at/andi/Institut für Computersprachen, Technische Universität Wien, Argentinierstraße 8, A-1040 Wien, AustriaSearch for more papers by this authorMark Probst, Mark Probst Institut für Computersprachen, Technische Universität Wien, Argentinierstraße 8, A-1040 Wien, Austria URL: http:/www.unix.cslab.tuwien.ac.at/˜schani/Search for more papers by this author First published: 24 December 1998 https://doi.org/10.1002/(SICI)1096-9128(199809/11)10:11/13 3.0.CO;2-7Citations: 20 AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Efficient implementation of monitors and exceptions is crucial for the performance of Java. One implementation of threads showed a factor of 30 difference in runtime on some benchmark programs. This paper describes an efficient implementation of monitors for Java as used in the CACAO just-in-time compiler. With this implementation the thread overhead is less than 40% for typical application programs and can be completely eliminated for some applications. This paper also gives the implementation details of the new exception handling scheme in CACAO. The new approach reduces the size of the generated native code by a half and allows null pointers to be checked by hardware. By using these techniques, the CACAO system has become the fastest JavaVM implementation for the Alpha processor. © 1998 John Wiley & Sons, Ltd. 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