Importance

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Abstract

In transactional memory systems, transactional aborts due to conflicts between concurrent threads may cause system performance degradation. A compiler may attempt to minimize runtime abort rates by performing code transformations and/or other optimizations on a transactional memory program in an attempt to minimize store-commit intervals. The compiler may employ store deferral, hoisting of long-latency operations from within a transaction body and/or store-commit interval, speculative hoisting of long-latency operations, and/or redundant store squashing optimizations. The compiler may perform optimizing transformations on source code and/or on any intermediate representation thereof (e.g., parse trees, un-optimized assembly code, etc.). The compiler may preemptively avoid naïve target code constructions. The compiler may perform static and/or dynamic analysis of a program in order to determine which, if any, transformations should be applied and/or may dynamically recompile code sections at runtime, based on execution analysis.

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First Claim