The Rio file cache: surviving operating system crashes
Proceedings of the seventh international conference on Architectural support for programming languages and operating systems
Analysis and evolution of journaling file systems
ATEC '05 Proceedings of the annual conference on USENIX Annual Technical Conference
Architecting phase change memory as a scalable dram alternative
Proceedings of the 36th annual international symposium on Computer architecture
A durable and energy efficient main memory using phase change memory technology
Proceedings of the 36th annual international symposium on Computer architecture
Scalable high performance main memory system using phase-change memory technology
Proceedings of the 36th annual international symposium on Computer architecture
Better I/O through byte-addressable, persistent memory
Proceedings of the ACM SIGOPS 22nd symposium on Operating systems principles
Dynamically replicated memory: building reliable systems from nanoscale resistive memories
Proceedings of the fifteenth edition of ASPLOS on Architectural support for programming languages and operating systems
Phase change memory architecture and the quest for scalability
Communications of the ACM
Operating system support for NVM+DRAM hybrid main memory
HotOS'09 Proceedings of the 12th conference on Hot topics in operating systems
High performance database logging using storage class memory
ICDE '11 Proceedings of the 2011 IEEE 27th International Conference on Data Engineering
Characterizing Memory Write References for Efficient Management of Hybrid PCM and DRAM Memory
MASCOTS '11 Proceedings of the 2011 IEEE 19th Annual International Symposium on Modelling, Analysis, and Simulation of Computer and Telecommunication Systems
Revisiting storage for smartphones
FAST'12 Proceedings of the 10th USENIX conference on File and Storage Technologies
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Journaling techniques are widely used in modern file systems as they provide high reliability and fast recovery from system failures. However, it reduces the performance benefit of buffer caching as journaling accounts for a bulk of the storage writes in real system environments. In this paper, we present a novel buffer cache architecture that subsumes the functionality of caching and journaling by making use of non-volatile memory such as PCM or STT-MRAM. Specifically, our buffer cache supports what we call the in-place commit scheme. This scheme avoids logging, but still provides the same journaling effect by simply altering the state of the cached block to frozen. As a frozen block still performs the function of caching, we show that in-place commit does not degrade cache performance. We implement our scheme on Linux 2.6.38 and measure the throughput and execution time of the scheme with various file I/O benchmarks. The results show that our scheme improves I/O performance by 76% on average and up to 240% compared to the existing Linux buffer cache with ext4 without any loss of reliability.