Ubiquitous Memory Introspection

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Provided by: National University of Singapore
Topic: Storage
Format: PDF
Modern memory systems play a critical role in the performance of applications, but a detailed understanding of the application behavior in the memory system is not trivial to attain. It requires time consuming simulations and detailed modeling of the memory hierarchy, often using long address traces. It is increasingly possible to access hardware performance counters to count relevant events in the memory system, but the measurements are coarse-grained and better suited for performance summaries than providing instruction level feedback. The availability of a low cost, online, and accurate methodology for deriving fine-grained memory behavior profiles can prove extremely useful for runtime analysis and optimization of programs.
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