ACM Computing Surveys (CSUR)
FAST '03 Proceedings of the 2nd USENIX Conference on File and Storage Technologies
FlashCache: a NAND flash memory file cache for low power web servers
CASES '06 Proceedings of the 2006 international conference on Compilers, architecture and synthesis for embedded systems
Measurement and analysis of large-scale network file system workloads
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
Architecting phase change memory as a scalable dram alternative
Proceedings of the 36th annual international symposium on Computer architecture
Enhancing lifetime and security of PCM-based main memory with start-gap wear leveling
Proceedings of the 42nd Annual IEEE/ACM International Symposium on Microarchitecture
SieveStore: a highly-selective, ensemble-level disk cache for cost-performance
Proceedings of the 37th annual international symposium on Computer architecture
Moneta: A High-Performance Storage Array Architecture for Next-Generation, Non-volatile Memories
MICRO '43 Proceedings of the 2010 43rd Annual IEEE/ACM International Symposium on Microarchitecture
Onyx: a protoype phase change memory storage array
HotStorage'11 Proceedings of the 3rd USENIX conference on Hot topics in storage and file systems
Providing safe, user space access to fast, solid state disks
ASPLOS XVII Proceedings of the seventeenth international conference on Architectural Support for Programming Languages and Operating Systems
FlashTier: a lightweight, consistent and durable storage cache
Proceedings of the 7th ACM european conference on Computer Systems
When poll is better than interrupt
FAST'12 Proceedings of the 10th USENIX conference on File and Storage Technologies
Workload analysis of a large-scale key-value store
Proceedings of the 12th ACM SIGMETRICS/PERFORMANCE joint international conference on Measurement and Modeling of Computer Systems
PCM-Based Durable Write Cache for Fast Disk I/O
MASCOTS '12 Proceedings of the 2012 IEEE 20th International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems
QuickSAN: a storage area network for fast, distributed, solid state disks
Proceedings of the 40th Annual International Symposium on Computer Architecture
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Emerging non-volatile storage (e.g., Phase Change Memory, STT-RAM) allow access to persistent data at latencies an order of magnitude lower than SSDs. The density and price gap between NVMs and denser storage make NVM economically most suitable as a cache for larger, more conventional storage (i.e., NAND flash-based SSDs and disks). Existing storage caching architectures (even those that use fast flash-based SSDs) introduce significant software overhead that can obscure the performance benefits of faster memories. We propose Bankshot, a caching architecture that allows cache hits to bypass the OS (and the associated software overheads) entirely, while relying on the OS for heavy-weight operations like servicing misses and performing write backs. We evaluate several design decisions in Bankshot including different cache management policies and different levels of hardware, software support for tracking dirty data and maintaining meta-data. We find that with hardware support Bankshot can offer upto 5× speedup over conventional caching systems.