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SIGOPSE
2004
ACM
14 years 1 months ago
Transactional file systems can be fast
Transactions ensure simple and correct handling of concurrency and failures but are often considered too expensive for use in file systems. This paper argues that performance is ...
Barbara Liskov, Rodrigo Rodrigues
USENIX
2008
13 years 10 months ago
FlexVol: Flexible, Efficient File Volume Virtualization in WAFL
zation is a well-known method of abstracting physical resources and of separating the manipulation and use of logical resources from their underlying implementation. We have used ...
John K. Edwards, Daniel Ellard, Craig Everhart, Ro...
SIGMOD
1995
ACM
132views Database» more  SIGMOD 1995»
13 years 11 months ago
Efficient Optimistic Concurrency Control Using Loosely Synchronized Clocks
This paper describes an efficient optimistic concurrency control scheme for use in distributed database systems in which objects are cached and manipulated at client machines whil...
Atul Adya, Robert Gruber, Barbara Liskov, Umesh Ma...
IPPS
2007
IEEE
14 years 2 months ago
United-FS: A Logical File System Providing a Single Image of Multiple Physical File Systems on NFS Server
NFS is considered to be the bottleneck in cluster computing environment because of its limited resources and centralized data management. With the development of hardware, NFS ser...
Huan Chen, Yi Zhao, Jin Xiong, Jie Ma, Ninghui Sun
SIGIR
2005
ACM
14 years 1 months ago
A geometric interpretation of r-precision and its correlation with average precision
We consider two of the most commonly cited measures of retrieval performance: average precision and R-precision. It is well known that average precision and R-precision are highly...
Javed A. Aslam, Emine Yilmaz, Virgiliu Pavlu