Earticle

초록

영어

In modern storage system, most file system uses journaling operation to preserve data in-safe and recover fast from power loss. However, journaling operations generate excessive IO requests and degrades IO throughput. In addition to that, it also makes a lot of possible-discard regions that could be invalidated physically through discard command. However, due to it short period of time between journal transactions, there occur a lot of tiny lurked discard regions which give much overheads. In this paper, we identify that there exist many tiny lurked discard regions between successive journaling commit operations, and investigate a dynamic interval controlling scheme of journal transactions commit to reduce tiny lurked discard regions, as well as enlarge IO size of upcoming commit transaction. With the help or dynamic controlling of transaction interval, overall IO bandwidth can be enhanced.

목차

Abstract
 1. Introduction
 2. Background and Related Work
 3. Controlling of Dynamic Transaction Interval based on the Discards
  3.1. Analysis of Lurked Discards In Journal Transactions
  3.2. Dynamic Transaction Interval Control Scheme
 4. Evaluation
 5. Conclusion
 Acknowledgements
 References

키워드

저자

• Seung-Ho Lim [ Division of Computer and Electronic Systems Engineering Hankuk University of Foreign Studies ]
• Ki-Jin Kim [ Division of Computer and Electronic Systems Engineering Hankuk University of Foreign Studies ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605