Managing Shared L2 Caches on Multicore Systems in Software

Provided by: University of Toledo
Topic: Hardware
Format: PDF
Most of today's multi-core processors feature shared L2 caches. A major problem faced by such architectures is cache contention, where multiple cores compete for usage of the single shared L2 cache. Uncontrolled sharing leads to scenarios where one core evicts useful L2 cache content belonging to another core. To address this problem, the authors have implemented a software mechanism in the operating system that allows for partitioning of the shared L2 cache by guiding the allocation of physical pages.

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