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FD-Buffer: A Buffer Manager for Databases on Flash Disks

by Qiong Luo, Available From Qiong Luo, Sai Tung On, Yinan Li, Bingsheng He, Ming Wu, Qiong Luo, Jianliang Xu , 2016
"... FD-buffer: a buffer manager for databases on flash disks. ..."
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FD-buffer: a buffer manager for databases on flash disks.

22.10.2009 Implementation of a Peer-to-Peer Multiplayer Game with Realtime Requirements

by Gutachten Alej, Ro Buchmann
"... Massively multiplayer online games (MMOGs) have become increasingly popular in the recent years, particularly in the form of online role-playing games (MMORPGs). These games support up to several ten thousand players interacting in a virtual game world. The current commercially successful games are ..."
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are client-server based, which is feasible for relatively slow role-playing games. Those have modest bandwidth and latency requirements and are paid for by their customers. For MMOGs with higher realtime requirements and/or a smaller number of customers willing to pay, peer-to-peer networking seems to be a

A Strategy to Manage Cache Consistency in a Disconnected Distributed Environment

by Anurag Kahol, Sumit Khurana, Eep K. S. Gupta, Senior Member, Pradip K. Srimani - IEEE Trans. on Parallel and Distributed Systems , 2001
"... AbstractÐModern distributed systems involving large number of nonstationary clients (mobile hosts, MH) connected via unreliable low-bandwidth communication channels are very prone to frequent disconnections. This disconnection may occur because of different reasons: The clients may voluntarily switc ..."
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their cache upon reconnection, to allow stateless servers, and to minimize the bandwidth requirement. The general approach is 1) to use asynchronous invalidation messages and 2) to buffer invalidation messages from servers at the MH's Home Location Cache (HLC) while the MH is disconnected from

Nanyang Technological

by Yinan Li, Bingsheng He, Ming Wu, Qiong Luo, Jianliang Xu
"... We design and implement FD-Buffer, a buffer manager for database systems running on flash-based disks. Unlike magnetic disks, flash media has an inherent read-write asymmetry: writes involve expen-sive erase operations and as a result are usually much slower than reads. Therefore, we address this as ..."
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this asymmetry in FD-Buffer. Specifically, we use the average I/O cost per page access as op-posed to the traditional miss rate as the performance metric for a buffer. We develop a new replacement policy in which we sepa-rate clean and dirty pages into two pools. The size ratio of the two pools is automatically

replacing ratings*

by Bo Becker
"... ABSTRACT. We analyze a reform of insurance companies’ capital requirements for mortgage-backed securities. First, credit ratings were replaced as inputs to capital regulation. Second, the redesigned system ensures capital buffers sufficient to withstand expected losses, but insufficient to protect a ..."
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ABSTRACT. We analyze a reform of insurance companies’ capital requirements for mortgage-backed securities. First, credit ratings were replaced as inputs to capital regulation. Second, the redesigned system ensures capital buffers sufficient to withstand expected losses, but insufficient to protect

Adaptive Batching of Client Requests for Continuous Media Playback

by Youjip Won, Jaideep Srivastava
"... In this paper, we investigate the buffer requirement to support a set of continuous media playbacks and develop an algorithm which dynamically changes the service mode of the playback to minimize the total buffer requirement. A certain amount of memory buffer is required in continuous media playback ..."
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In this paper, we investigate the buffer requirement to support a set of continuous media playbacks and develop an algorithm which dynamically changes the service mode of the playback to minimize the total buffer requirement. A certain amount of memory buffer is required in continuous media

Automatic program repair with evolutionary computation,”

by Stephanie Forrest , Westley Weimer , Stephanie Forrest , Claire Le Goues , Thanhvu Nguyen - Commun. ACM, , 2010
"... Abstract There are many methods for detecting and mitigating software errors but few generic methods for automatically repairing errors once they are discovered. This paper highlights recent work combining program analysis methods with evolutionary computation to automatically repair bugs in off-th ..."
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that passing the negative test cases is worth at least as much as passing the positive test cases. Intuitively, this weighting rewards the search for moving toward a possible repair. Programs that do not compile are assigned fitness zero. Minimizing the repair Because the GP may introduce irrelevant changes

List of Tables...........................

by Catherine Rose, Mills Olschanowsky, Catherine Rose, Mills Olschanowsky , 2011
"... by ..."
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Abstract not found

USENIX Association 11th USENIX Conference on File and Storage Technologies (FAST ’13) 215 Getting Real: Lessons in Transitioning Research Simulations into Hardware Systems

by Mohit Saxena, Yiying Zhang, Michael M. Swift, Andrea C. Arpaci-dusseau, Remzi H. Arpaci-dusseau
"... Flash-based solid-state drives have revolutionized stor-age with their high performance. Their sophisticated in-ternal mechanisms have led to a plethora of research on how to optimize applications, file systems, and internal SSD designs. Due to the closed nature of commercial de-vices though, most r ..."
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that change both the internal workings of the device and its interface to the host operating sys-tem. Using the OpenSSD Jasmine board, we develop a prototype of FlashTier’s Solid State Cache (SSC) and of the Nameless Write SSD. While the flash-translation layer changes were straightforward, we discovered un

Guaranteeing Communication Quality in Real World WSN Deployments

by Fbk-irst Bruno, Kessler Foundation, Matteo Ceriotti, Dr. Amy, L. Murphy, Bruno Kessler Foundation (fbk-irst, Amy L. Murphy, Prof Prabal Dutta, Prof Koen Langendoen, Prof Leo Selavo
"... April 29, 2011Für UnsShe had never before seen a rabbit with either a waistcoat-pocket, or a watch to take out of it, and burning with curiosity, she ran across the field after it Lewis CarrollThe following document, written under the supervision of Dr. reviewed by: ..."
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April 29, 2011Für UnsShe had never before seen a rabbit with either a waistcoat-pocket, or a watch to take out of it, and burning with curiosity, she ran across the field after it Lewis CarrollThe following document, written under the supervision of Dr. reviewed by:
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