Type Stable Memory Management
- Type Stable Memory Management
Type-Stable Memory Management refers to the concept of maintaining type between memory allocation and deallocation. This idea is extremely useful in constructing non-blocking synchronization algorithms. The below image describes an algorithm detailing the use of type-stable memory (TSM) allocation for the implementation of a non-blocking link-list modification.
Without the use of type-stable memory, the pointer p may incorrectly point to something of a different type. In languages like C or C++, an invalid pointer may cause all sorts of undefined behavior. The use of TSM has greatly simplified the construction of such an algorithm.
----References: The Synergy Between Non-blocking Synchronization and Operating System StructureUSENIX 2nd Symposium on OS Design and Implementation (OSDI '96) Michael Greenwald and David CheritonComputer Science DepartmentStanford University [http://www.usenix.org/publications/library/proceedings/osdi96/full_papers/greenwald/index.html]
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