Improving writeback performance of memory-based storage devices

Authors:
Kooktae Choi;Shin-gyu Kim;Hyeonsang Eom;Heon Y. Yeom
Affiliations:
Seoul National University, Seoul, Korea;Seoul National University, Seoul, Korea;Seoul National University, Seoul, Korea;Seoul National University, Seoul, Korea
Venue:
Proceedings of the 8th International Conference on Ubiquitous Information Management and Communication
Year:
2014

Citing 10
Cited 0

Cache Memories

ACM Computing Surveys (CSUR)
Better I/O through byte-addressable, persistent memory

Proceedings of the ACM SIGOPS 22nd symposium on Operating systems principles
Understanding the Impact of Emerging Non-Volatile Memories on High-Performance, IO-Intensive Computing

Proceedings of the 2010 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis
High performance solid state storage under Linux

MSST '10 Proceedings of the 2010 IEEE 26th Symposium on Mass Storage Systems and Technologies (MSST)
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
Operating system implications of fast, cheap, non-volatile memory

HotOS'13 Proceedings of the 13th USENIX conference on Hot topics in operating systems
Onyx: a protoype phase change memory storage array

HotStorage'11 Proceedings of the 3rd USENIX conference on Hot topics in storage and file systems
SCMFS: a file system for storage class memory

Proceedings of 2011 International Conference for High Performance Computing, Networking, Storage and Analysis
DiDi: Mitigating the Performance Impact of TLB Shootdowns Using a Shared TLB Directory

PACT '11 Proceedings of the 2011 International Conference on Parallel Architectures and Compilation Techniques
When poll is better than interrupt

FAST'12 Proceedings of the 10th USENIX conference on File and Storage Technologies

Quantified Score

Hi-index	0.00

Visualization

Abstract

Many I/O subsystems of general-purpose operating systems are optimized for the hard disk drive. The "writeback" feature is being used to overcome the mechanical limitation of the hard disk. But the current "writeback" mechanism is not optimal for memory-based storage devices which do not use mechanical instruments to read and write data. We have investigated the current "writeback" mechanism of Linux operating system and attempted to optimize it for memory-based storage devices. The current "writeback" handles bios one by one based on the mechanical limitation of the hard disk even though there may be many bios that could be handled simultaneously; the bios could be handled differently for memory-based storage devices. We have modified "writeback" so that multiple bios can be processed at a time, leading to improvements by more than 140% in write performance.