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Cache Revive: Architecting Volatile STT-RAM Caches for Enhanced Performance in CMPs

Adwait Jog † , Asit K. Mishra‡, Cong Xu†, Yuan Xie†, N . Vijaykrishnan†, Ravi Iyer‡, Chita R. Das†. † The Pennsylvania State University ‡ Intel Corporation. Years of data-retention time for STT-RAM (traditionally non-volatile) may not be required .

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Cache Revive: Architecting Volatile STT-RAM Caches for Enhanced Performance in CMPs

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  1. Adwait Jog†, Asit K. Mishra‡, Cong Xu†, Yuan Xie†, N. Vijaykrishnan†, Ravi Iyer‡, Chita R. Das† †The Pennsylvania State University ‡Intel Corporation • Years of data-retention time for STT-RAM (traditionally non-volatile) may not be required. • Trade-off retention time for lower STT-RAM write latency and energy • Challenge: Architecting “VolatileSTT-RAM” Caches • Advantage: Performance and Energy Benefits! Cache Revive: Architecting Volatile STT-RAM Caches for Enhanced Performance in CMPs

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