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  1. Proceedings of the 3rd international symposium on Memory management (ISMM '02)
  2. Reducing pause time of conservative collectors
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Applying priorities to memory allocation
Understanding the connectivity of heap objects
Thread-local heaps for Java
An algorithm for parallel incremental compaction
Adaptive caching for demand prepaging
Accurate garbage collection in an uncooperative environment
Reducing pause time of conservative collectors
Visualising the train garbage collector
Heap architectures for concurrent languages using message passing
Using passive object garbage collection algorithms for garbage collection of active objects
An adaptive, region-based allocator for java
Software caching vs. prefetching
Automated discovery of scoped memory regions for real-time Java
Estimating the impact of heap liveness information on space consumption in Java
Dynamic memory management for programmable devices
Mostly lock-free malloc
In or out?: putting write barriers in their place

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Reducing pause time of conservative collectors

Content Provider ACM Digital Library
Author Taura, Kenjiro Endo, Toshio
Abstract This paper describes an incremental conservative garbage collector that significantly reduces pause time of an existing collector by Boehm et al. Like their collector, it is a true conservative collector that does not require compiler cooperation but uses virtual memory primitives (page protection) of operating systems for write barriers. While much successful work has been done on incremental collectors in general, achieving small pause time of the order of a few milliseconds in such uncooperative settings has been challenging. Our collector combines several ideas that bound pause times without introducing significant overheads. They include: (1) bounding the number of dirty (writable) pages during concurrent marking, (2) adaptive repetition of concurrent marking phases, and (3) allocating objects in black (marked) in later stages of a collection. With these techniques, we have achieved the maximum pause time of 2.6--4.5ms for five application benchmarks on 400MHz UltraSPARC processors. They are up to forty times shorter than the basic incremental collector similar to Boehm et al.'s. The overhead (total work time) of our collector is 1.2--53% to the stop-the-world collector and 9% or less to the basic incremental collector.
Starting Page 119
Ending Page 131
Page Count 13
File Format PDF
ISBN 1581135394
DOI 10.1145/512429.512432
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2002-06-20
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Memory management Concurrent garbage collection Parallel garbage collection Conservative garbage collection
Content Type Text
Resource Type Article
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