0. About Me
I am a first year Ph.D student at the University of Seoul (UOS) in South Korea and currently working with Prof. Donghee Lee in the Mobile Embedded System Laboratory. My research interests include flash-based storages and file systems and flash cache optimization in hybrid storage system.
1. Education
- 03/2011-Present : Ph.D. in Computer Science, University of Seoul, Seoul, South Korea
- 03/2009-02/2011 : M.S. in Computer Science, University of Seoul, Seoul, South Korea
- 04/2004-02/2009 : B.S. in Computer Science, University of Seoul, Seoul, South Korea
2. Publication
International
- “Caching less for better performance: Balancing cache size and update cost of flash memory cache in hybrid storage system”
Yongseok Oh, Jongmoo Choi, Donghee Lee, and Sam H. Noh,
In Proceedings of the 10th USENIX Conference on File and Storage Technology (FAST2012), San Jose, CA, Feb 14-17, 2012.
[PDF Paper][Slide][Poster][Picture]
(acceptance ratio = 18.9 (26/137))
- “Optimizations of LFS with Slack Space Recycling and Lazy Indirect Block Update”
Yongseok Oh, Eunsam Kim, Jongmoo Choi, Donghee Lee, and Sam H. Noh,
In Proceedings of the 3rd Annual Haifa Experimental Systems Conference (SYSTOR2010), Haifa, Israel, May 24-26, 2010.
[PDF] [Slide] [Picture]
- “A Performance Model and File System Space Allocation Scheme for SSDs”
Choulseung Hyun, Yongseok Oh, Eunsam Kim, Jongmoo Choi, Donghee Lee, and Sam H. Noh
In Proceedings of the 26th IEEE Symposium on Massive Storage Systems and Technologies (MSST2010), Incline Village, Nevada, May 6-7, 2010.
[PDF] [Slide]
- “Disk Schedulers for Solid State Drives”
Jaeho Kim, Yongseok Oh, Eunsam Kim, Jongmoo Choi, Donghee Lee, and Sam H. Noh
In Proceedings of the ACM Conference on Embedded Software (EMSOFT’09), Grenoble, France, Oct. 12-16, 2009.
[PDF]
Domestic
- “세그먼트 공간 재활용 기법을 이용한 LFS의 쓰기 성능 최적화 연구“
오용석, 김은삼, 최종무, 이동희, 노삼혁, ,
한국정보과학회 한국컴퓨터종합학술대회(KCC) 2009
[PDF]
- “SSD(Solid State Drive)에 최적화된 입출력 스케줄러“
김재호, 오용석, 김은삼, 최종무, 이동희, 노삼혁
한국정보과학회 한국컴퓨터종합학술대회(KCC) 2009
[PDF]
- “LFS의 쓰기 성능 최적화를 위한 세그먼트 공간 재활용 기법“
오용석, 김은삼, 최종무, 이동희, 노삼혁, ,
정보과학회논문지:컴퓨팅의 실제 및 레터, 제 15권 제 12호, pp.963 ~967, 2009/12
[PDF]
4. Patent
- “METHOD AND DEVICE FOR MANAGING SOLID STATE DRIVE”
Sam H. Noh, Donghee Lee, Jongmoo Choi, Eunsam Kim, Choulseung Hyun and Yongseok Oh
10-2008-0115607, 2008.11.20
5. Technical Skill
- Program Langues : C, Python, C#, PHP, HTML, Javascript
- Plotting Tools: GnuPlot, Matplotlib
- Design and Implementation of File Systems
- File and I/O System Benchmark
- Disk and SSD Simulation
- Disk IO Scheduler
|
