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| Content Provider | ACM Digital Library |
|---|---|
| Author | Trancón y Widemann, Baltasar |
| Abstract | Reference-counting garbage collection is known to have problems with the collection of cyclically connected data. There are two historically significant styles of cycle-aware algorithms: The style of Brownbridge that maintains a subset of marked edges and the invariant that every cycle contains at least one marked edge, and the style of Martinez-Lins-Wachenchauzer (MLW) that involves local mark-and-scan procedures to detect cycles. The former is known to be difficult to design and implement correctly, and the latter to have pathological efficiency for a number of very typical situations. We present a novel algorithm that combines both approaches to obtain reasonably efficient local mark-and-scan phases with a marking invariant that is rather cheap to maintain. We demonstrate that the assumptions of this algorithm about mutator activity patterns make it well-suited, but not limited, to a functional programming technique for cyclic data. We evaluate the approach in comparison with simple and more sophisticated MLW algorithms using a simple benchmark based on that functional paradigm. |
| Starting Page | 71 |
| Ending Page | 80 |
| Page Count | 10 |
| File Format | |
| ISBN | 9781605581347 |
| DOI | 10.1145/1375634.1375645 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2008-06-07 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Garbage collection Cycles Memory management Functional programming Reference counting |
| Content Type | Text |
| Resource Type | Article |
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