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YouChoose: A performance interface enabling convenient and efficient QoS support for consolidated storage systems
2011
2011 IEEE 27th Symposium on Mass Storage Systems and Technologies (MSST)
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Currently the QoS requirements for disk-based storage systems are usually presented in the form of service-level agreement (SLA) to bound I/O measures such as latency and throughput of I/O requests. ...
This makes resource provisioning and scheduling less informative and could greatly reduce system efficiency. ...
ACKNOWLEDGMENTS We thank the anonymous reviewers for their constructive comments that helped us to improve the paper. This research is supported by U.S. NSF CAREER award CCF-0845711 and CRI-0708232. ...
doi:10.1109/msst.2011.5937214
dblp:conf/mss/ZhangXJ11
fatcat:gneuefesmbcklgubdmiict472q
Analysis of HDFS under HBase: a facebook messages case study
2014
USENIX Conference on File and Storage Technologies
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We find hot data is too large to easily fit in RAM and cold data is too large to easily fit in flash; however, cost simulations show that adding a small flash tier improves performance more than equivalent ...
spending on RAM or disks. ...
We also thank Pritam Damania, Adela Maznikar, and Rishit Shroff for their help in collecting HDFS traces. ...
dblp:conf/fast/HarterBDATAA14
fatcat:p3cuzg3inrcv3gz3wfo5s6mcni
A survey of power and energy efficient techniques for high performance numerical linear algebra operations
2014
Parallel Computing
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, and summarize state-of-the-art techniques for achieving power and energy efficiency in each category individually. ...
This paper surveys the research on saving power and energy for numerical linear algebra algorithms in high performance scientific computing on supercomputers around the world. ...
/cost constant Data intensive scientific applications on clusters [75] Static Employing low power processor solid state disk & efficient algo. 5.1Â perf. ...
doi:10.1016/j.parco.2014.09.001
fatcat:twdkr2hrizebvglto6dwd7jqem
A general framework for dynamic and automatic I/O scheduling in hard and solid-state drives
2014
Journal of Parallel and Distributed Computing
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workload without previous knowledge. • DADS can be used in both hard disks and solid state drives. • System administrators are exempted from selecting a suboptimal I/O scheduler. a b s t r a c t The selection ...
h i g h l i g h t s • DADS concurrently compares several I/O schedulers in real time. • DADS automatically selects the I/O scheduler that provides the best performance. • DADS works at any time for any ...
But for flash memory cards or Solid State Drives (SSDs) [12, 4] , Noop usually gets better performance than other policies, because it does not add delays between requests that can increase the total ...
doi:10.1016/j.jpdc.2014.02.002
fatcat:o2nlqchefnexjd6cpgqopwzaoa
Trends in big data analytics
2014
Journal of Parallel and Distributed Computing
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h i g h l i g h t s • An overview of the state-of-the-art in big-data analytics. • Trends in scale and application landscape of big-data analytics. • Current and future trends in hardware that can help ...
Data repositories for such applications currently exceed exabytes and are rapidly increasing in size. ...
There are proposals for using flash-based solid-state-disks (SSDs) to support key-value store abstractions, for workloads that favor it. ...
doi:10.1016/j.jpdc.2014.01.003
fatcat:2v52tvp4tff7xh3cma5gdnlxgq
2020 Index IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems Vol. 39
2020
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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., +, TCAD March 2020 714-727
Firmware
Current-Aware Flash Scheduling for Current Capping in Solid State Disks. ...
., +, TCAD Nov. 2020 3263-3275 Current-Aware Flash Scheduling for Current Capping in Solid State Disks. Chang, L., +, TCAD Feb. 2020 321-334 Design of a Host Interface Logic for GC-Free SSDs. ...
Entropy-Directed Scheduling for FPGA High-Level Synthesis. Shen, M., +, TCAD Oct. 2020 2588 -2601 FLASH: Fast, Parallel, and Accurate Simulator for HLS. ...
doi:10.1109/tcad.2021.3054536
fatcat:wsw3olpxzbeclenhex3f73qlw4
Split-level I/O scheduling
2015
Proceedings of the 25th Symposium on Operating Systems Principles - SOSP '15
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and performance in these important application scenarios. ...
Finally, we demonstrate that split-level scheduling serves as a useful foundation for databases (SQLite and Post-greSQL), hypervisors (QEMU), and distributed file systems (HDFS), delivering improved isolation ...
Acknowledgement We thank the anonymous reviewers and Angela Demke Brown (our shepherd) for their insightful feedback. ...
doi:10.1145/2815400.2815421
dblp:conf/sosp/YangHAKKAKAA15
fatcat:dnpa27xpqnevhizdklyst2afhe
Electronic records management strategies by government agencies in Kenya
2019
Record and Library Journal
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services; (2) determining the promotion goals by specifying the type of user; (3) a budget is issued; (4) selecting the media used for publication and promotion; (5) evaluating various types of media ...
of the study: Libraries have various challenges in maintaining their existence as information providers. ...
The respondents acknowledged being aware of and applying these policies and legislation in their day-to-day operations. They are specifically aware of records retention periods and schedules. ...
doi:10.20473/rlj.v5-i1.2019.62-71
fatcat:65bglchfbnd67khp4usad4lfta
Green Software
[chapter]
2012
Harnessing Green It
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Cross-Layer Energy Aware Network Management'. ...
The editorial team at Wiley deserves our commendation for their key roles in publishing this volume and in ensuring its quality. ...
However, storage solutions based on flash drives or solid-state drives (SSDs) are gaining increased traction particularly for storing frequently accessed data. ...
doi:10.1002/9781118305393.ch3
fatcat:epohredblvhg5ei2chbw2fmhpy
Architectural Techniques for Improving NAND Flash Memory Reliability
[article]
2018
arXiv
pre-print
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Raw bit errors are common in NAND flash memory and will increase in the future. These errors reduce flash reliability and limit the lifetime of a flash memory device. ...
and write-cold data. (2) We propose a new framework that learns an online flash channel model for each chip and enables four new flash controller algorithms to improve flash reliability by up to 69.9% ...
We use a solid line to show a fitted Gaussian distribution for each state. ...
arXiv:1808.04016v1
fatcat:fotned4yajc2xmaoezwjdrgypu
Internal Parallelism of Flash Memory-Based Solid-State Drives
2016
ACM Transactions on Storage
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Internal parallelism of flash memory-based solid-state drives. ...
A unique merit of a solid-state drive (SSD) is its internal parallelism. In this article, we present a set of comprehensive studies on understanding and exploiting internal parallelism of SSDs. ...
Memory-Based Solid-State Drives 13:19 Fig. 7. ...
doi:10.1145/2818376
fatcat:pbsvzqqum5gdjcmnoavprbdo4i
Orbit Design for LUMIO: The Lunar Meteoroid Impacts Observer
2018
Frontiers in Astronomy and Space Sciences
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The Lunar Meteoroid Impacts Observer, or LUMIO, is a space mission concept awarded winner of ESA's SysNova Competition "Lunar CubeSats for Exploration," and as such it is now under consideration for future ...
The methodology is thoroughly described, both in qualitative and quantitative terms, in support to the mission analysis trade-off activities. ...
ACKNOWLEDGMENTS The work described in this paper is a spin-off of a bigger project, namely the LUMIO Phase 0 design. ...
doi:10.3389/fspas.2018.00029
fatcat:mlpweyhnmzbeponzzaz4gttn4a
The anatomy of big data computing
2015
Software, Practice & Experience
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Advances in information technology and its widespread growth in several areas of business, engineering, medical, and scientific studies are resulting in information/data explosion. ...
Big data computing demands a huge storage and computing for data curation and processing that could be delivered from on-premise or clouds infrastructures. ...
ACKNOWLEDGEMENTS We thank Rodrigo Calheiros, Nikolay Grozev, Amir Vahid, and Harshit Gupta for their comments and suggestions on improving the quality of the paper. ...
doi:10.1002/spe.2374
fatcat:pe57kzvunrf7blpbm7cpwliysu
Large-scale cluster management at Google with Borg
2015
Proceedings of the Tenth European Conference on Computer Systems - EuroSys '15
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Only a tiny fraction of the thousands of worker nodes are shown. cluding with a set of qualitative observations we have made from operating Borg in production for more than a decade. ...
Borg simplifies life for its users by offering a declarative job specification language, name service integration, real-time job monitoring, and tools to analyze and simulate system behavior. ...
We list here just those who participated most directly in the design, implementation, and operation of the Borgmaster and Borglets. Our apologies if we missed anybody. ...
doi:10.1145/2741948.2741964
dblp:conf/eurosys/VermaPKOTW15
fatcat:jkpvjxxjczdwnetfl2ufhhooja
Resource Sharing for Multi-Tenant NoSQL Data Store in Cloud
[article]
2016
arXiv
pre-print
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In the independent data-local file system case, resource contention occurs under certain conditions in Cassandra and HBase, two state-of-the-art NoSQL stores, causing performance degradation for one tenant ...
The first provides a scheduling scheme that can approximate resource consumption, adapt to workload dynamics and work in a distributed fashion. ...
Their valuable feedback and professional guidance keep me in the right direction and push me to dive into the details without losing the big picture. ...
arXiv:1601.00738v1
fatcat:ef3aivaqafanfjamo3yahbvu64
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