The Design and Implementation of a Log-Structured File System

... ceeding of the ACM SIGMOD Conference on Management of Data, May 1994. [CS92] Rakesh Chandm and Arie Segev. Managing Temporal Financial Data in an Extensible Database. In Proceedings of the International ... object-relational database system Illustra [I11941 provides database support for time-series data along with relational data. A time-series is an ADT(Abstract Data...

Ngày tải lên: 16/03/2014, 16:20

... separate data area is reserved for this purpose .The separate data area of these database systems meansthat they do not need the segment cleaning mechanisms ofthe Sprite LFS to reclaim log space. The ...  ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ ✁ systems view the log as the most up to date ‘‘truth’’ aboutthe state of...

Ngày tải lên: 12/09/2012, 15:05

Ngày tải lên: 23/03/2014, 22:21

Ngày tải lên: 27/10/2013, 23:15

... Efficiency and Fairness Characteristics • Takes 7.5 seconds to reach 90% of the link capacity, independent of BDP • Satisfies max-min fairness if all the flows have the same end-to-end link capacity – Otherwise, ... 1000ms Fairness and Friendliness 50 TCP flows and 4 UDT flows between SARA and StarLight Realtime snapshot of the throughput The 4 UDT flows have si...

Ngày tải lên: 15/01/2014, 15:59

... program- ming tasks, such as object registration, location, and acti- vation; request demultiplexing; framing and error-handling; parameter marshalling and demarshalling; and operation dis- patching. Figure ... shows an implementation of the Dispatching Module that allocates a real-time thread (or pool of threads) to each priority queue. The advantage of this model is th...

Ngày tải lên: 19/02/2014, 18:20

... specifications and the implementation of a particular concept of word-based lexicon to be used for large natural language processing systems such as machine translation systems, and compares ... translation system or any other type of natural language processing program that must be able to handle very large amounts of text necessitates dictionaries of substantia...

Ngày tải lên: 22/02/2014, 09:20

... and manipulate the data so that the application can generate a useful product. The data support the application, and if there were no software for data storage and retrieval, the application ... Analysis 20 The Design and Implementation of Geographic Information Systems Applications ◆ Data maintainer. Maintains the data layers and associated attributes in the...

Ngày tải lên: 01/06/2014, 12:38

... similar in nature to a data manager which fails to freedata, but is easier to detect and prevent.• Data manager changes data. A malicious data manager may change the value of its data on each cacherefresh. ... starvation by errant data managers.Because the interface to the default pager is identical to other external data managers, there are no fundamentalassumptions made about...

Ngày tải lên: 12/09/2012, 15:05