Thin Locks: Featherweight Synchronization for Java

Thin Locks: Featherweight Synchronization for Java (1998)

Cached

Download Links

[www.research.ibm.com]
[researchweb.watson.ibm.com]

Other Repositories/Bibliography

DBLP

by David Bacon , Ravi Konuru , Chet Murthy , Mauricio Serrano

Citations:

105 - 5 self

Versions

Version History

Metadata Version 3

User correction supplied by SystemCorrections

Datum	Value	Source
TITLE	Thin Locks: Featherweight Synchronization for Java	INFERENCE
AUTHOR NAME	David Bacon	user correction - Legacy Corrections
AUTHOR AFFIL	IBM T.J. Watson Research Center	user correction - Legacy Corrections
AUTHOR NAME	Ravi Konuru	user correction - Legacy Corrections
AUTHOR AFFIL	IBM T.J. Watson Research Center	user correction - Legacy Corrections
AUTHOR NAME	Chet Murthy	user correction - Legacy Corrections
AUTHOR AFFIL	IBM T.J. Watson Research Center	user correction - Legacy Corrections
AUTHOR NAME	Mauricio Serrano	user correction - Legacy Corrections
AUTHOR AFFIL	IBM T.J. Watson Research Center	user correction - Legacy Corrections
ABSTRACT	Language-supported synchronization is a source of serious performance problems in many Java programs. Even singlethreaded applications may spend up to half their time performing useless synchronization due to the thread-safe nature of the Java libraries. We solve this performance problem with a new algorithm that allows lock and unlock operations to be performed with only a few machine instructions in the most common cases. Our locks only require a partial word per object, and were implemented without increasing object size. We present measurements from our implementation in the JDK 1.1.2 for AIX, demonstrating speedups of up to a factor of 5 in micro-benchmarks and up to a factor of 1.7 in real programs. 1 Introduction Monitors [5] are a language-level construct for providing mutually exclusive access to shared data structures in a multithreaded environment. However, the overhead required by the necessary locking has generally restricted their use to relatively "heavy-weight" object...	user correction - Legacy Corrections
YEAR	1998	INFERENCE
VENUE TYPE	CONFERENCE	INFERENCE
PAGES	258--268	INFERENCE
CITATIONS	13 found	ParsCit 1.0