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Exploiting redundancy to boost performance in a RAID-10 style cluster-based file system

Yifeng Zhu, Hong Jiang, Xiao Qin, Dan Feng, David R. Swanson
<span title="">2006</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/cwtjzb7mrjft5adayc4gnqasai" style="color: black;">Cluster Computing</a> </i> &nbsp;
While aggregating the throughput of existing disks on cluster nodes is a cost-effective approach to alleviate the I/O bottleneck in cluster computing, this approach suffers from potential performance degradations  ...  More specifically, a heuristic scheduling algorithm is developed, motivated from the observations of a simple cluster configuration, to spatially schedule write operations on the nodes with less load among  ...  Impact of memory and disk load on write performance Memory and disk are closely coupled in almost all modern operating systems since most Linux systems employ the virtual memory technology and disks are  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s10586-006-0011-6">doi:10.1007/s10586-006-0011-6</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ck24a5zpl5gwtjgtfbstxvvska">fatcat:ck24a5zpl5gwtjgtfbstxvvska</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180720010210/http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.224.649&amp;rep=rep1&amp;type=pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/35/7e/357e2b92d33d20a41de814b7209fa349560793dd.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s10586-006-0011-6"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

The Research and Application of the Virtualization and Clustering on Linux Server

Rongbo Cui, Xiaobing Xu
<span title="2010-10-18">2010</span> <i title="Canadian Center of Science and Education"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/e3eberciqvbc3am2h4ordzdxu4" style="color: black;">Computer and Information Science</a> </i> &nbsp;
At the same time, the virtual Linux clients are clustered using the virtual machine (VM) virtualization technology and scheduling algorithm for load balancing.  ...  This paper illustrates a program about the combination of the Linux platform and virtualization technology.  ...  So we can replace some X86 privilege instruction which can not be virtualized, and make the VMM work together to enhance the virtual machine performance.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5539/cis.v3n4p155">doi:10.5539/cis.v3n4p155</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/uc5q4huhhnby3haodxljmqljem">fatcat:uc5q4huhhnby3haodxljmqljem</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20101228172138/http://ccsenet.org/journal/index.php/cis/article/download/8108/6125" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/81/ec/81ec584c7aa410a023aaeae9d8cbd342f1db6dc2.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5539/cis.v3n4p155"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

Mercury: Host-side flash caching for the data center

Steve Byan, James Lentini, Anshul Madan, Luis Pabon
<span title="">2012</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/f7qw4mfk45hgfchxeziw7o6qcm" style="color: black;">012 IEEE 28th Symposium on Mass Storage Systems and Technologies (MSST)</a> </i> &nbsp;
This paper presents our experience building a host-side flash cache, an architectural analysis of possible cache attachment points, and a performance evaluation using enterprise workloads.  ...  For synchronous I/Os, the Linux CFQ scheduler optimizes for disk devices by doing unexplicit anticipatory scheduling.  ...  We configured QEMU to use the Linux libaio asynchronous I/O interface with the Linux CFQ I/O scheduler.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/msst.2012.6232368">doi:10.1109/msst.2012.6232368</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/mss/ByanLMP12.html">dblp:conf/mss/ByanLMP12</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/dgf2jgvbvbb77bcs7cmrh3i27q">fatcat:dgf2jgvbvbb77bcs7cmrh3i27q</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20120730034703/http://www.storageconference.org/2012/Papers/04.Flash.1.Mercury.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/55/6b/556b2b3c68209c8f009cdc09198c1d25260cc411.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/msst.2012.6232368"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Database Performance Management in Cloud

Navendu Mishra, Jayant Sawarkar, Suraj Dubey
<span title="2020-10-20">2020</span> <i title="Vandana Publications"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ow7kjruzf5awzjolrkoyf7xqa4" style="color: black;">International Journal of Engineering and Management Research</a> </i> &nbsp;
Management of Large Chain of Hotels and ERP Database in AWS Cloud involves continuous monitoring with regards to the areas such as Performance of resource usages and optimization techniques relating to  ...  Also, keeping the datafiles on the SAN box is mandatory not only for performance (I/O), but also in case any damage happens to any of the disks due to block corruption, the other mirrored disks can be  ...  for the Linux kernel.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.31033/ijemr.10.5.11">doi:10.31033/ijemr.10.5.11</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/guop3miokvap3knckqixml7b7a">fatcat:guop3miokvap3knckqixml7b7a</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201108041956/https://www.ijemr.net/ojs/index.php/ojs/article/download/612/760" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/5a/5f/5a5f3b68016df4af671e27c0125bb19405bedaca.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.31033/ijemr.10.5.11"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

Matrix Stripe Cache-Based Contiguity Transform for Fragmented Writes in RAID-5

Sung Hoon Baek, Kyu Ho Park
<span title="">2009</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5jlmyrayyrdazh5awdlsoec77q" style="color: black;">IEEE transactions on computers</a> </i> &nbsp;
The proposed implementation in a Linux kernel delivers a peak throughput that is 3.2 times higher than a case without MSC-CT on representative workloads.  ...  MSC-CT performs for reads and writes, both of which are produced by write requests from a host, as a write request from a host employs reads for parity-update and writes to disks in a RAID-5 array.  ...  scheduler [12] , which is the default disk scheduler of Linux.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tc.2007.1058">doi:10.1109/tc.2007.1058</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/oakirruzpjd6xpa3e5pdgpkzjy">fatcat:oakirruzpjd6xpa3e5pdgpkzjy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170922064537/http://koasas.kaist.ac.kr/bitstream/10203/1557/1/000248083100003.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/17/d0/17d0105245b25fb213aacf2691b48f3f05d80a80.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tc.2007.1058"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Matrix-Stripe-Cache-Based Contiguity Transform for Fragmented Writes in RAID-5

Sung Hoon Baek, Kyu Ho Park
<span title="">2007</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5jlmyrayyrdazh5awdlsoec77q" style="color: black;">IEEE transactions on computers</a> </i> &nbsp;
The proposed implementation in a Linux kernel delivers a peak throughput that is 3.2 times higher than a case without MSC-CT on representative workloads.  ...  MSC-CT performs for reads and writes, both of which are produced by write requests from a host, as a write request from a host employs reads for parity-update and writes to disks in a RAID-5 array.  ...  scheduler [12] , which is the default disk scheduler of Linux.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tc.2007.70758">doi:10.1109/tc.2007.70758</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/pfepw7r6fzgt3b45chbb6hykge">fatcat:pfepw7r6fzgt3b45chbb6hykge</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170922064537/http://koasas.kaist.ac.kr/bitstream/10203/1557/1/000248083100003.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/17/d0/17d0105245b25fb213aacf2691b48f3f05d80a80.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tc.2007.70758"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

HRAID6ML: A hybrid RAID6 storage architecture with mirrored logging

Lingfang Zeng, Dan Feng, Jianxi Chen, Qingsong Wei, Bharadwaj Veeravalli, Wenguo Liu
<span title="">2012</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/f7qw4mfk45hgfchxeziw7o6qcm" style="color: black;">012 IEEE 28th Symposium on Mass Storage Systems and Technologies (MSST)</a> </i> &nbsp;
In this paper, we propose HRAID6ML, a new logging architecture for RAID6 systems for enhanced energy efficiency, performance and reliability.  ...  The free space of the two parity disks is used as mirrored log region of the whole system to absorb writes. The mirrored logging policy helps to recover system from parity disk failure.  ...  The Data Distributor module schedules the I/O request accordingly to either RAID6 region, mirrored log region.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/msst.2012.6232374">doi:10.1109/msst.2012.6232374</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/mss/ZengFCWVL12.html">dblp:conf/mss/ZengFCWVL12</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/nauwmreezrcx7a7iyulzl5o3pe">fatcat:nauwmreezrcx7a7iyulzl5o3pe</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20120730040858/http://www.storageconference.org/2012/Papers/10.Short.1.HRAID6ML.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/90/8e/908ea2e86fc7d37ea08217bbede2640c11c507b0.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/msst.2012.6232374"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Phoenix

Anindya Neogi, Ashish Raniwala, Tzi-cker Chiueh
<span title="">1999</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/lahlxihmo5fhzpexw7rundu24u" style="color: black;">Proceedings of the seventh ACM international conference on Multimedia (Part 1) - MULTIMEDIA &#39;99</a> </i> &nbsp;
Phoenix's real-time disk subsystem performance results from a standard cycle-based scan-order disk scheduling mechanism.  ...  This on-off disk scheduling model e&ctively reduces the power comsumption of the diik subsystem, without increasing the buffer size requirement.  ...  Software Architecture The Phoenix kernel is based on Linux 2.0.34.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/319463.319685">doi:10.1145/319463.319685</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/mm/NeogiRC99.html">dblp:conf/mm/NeogiRC99</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/gtwmk5y6enfilc5gjuyyizikou">fatcat:gtwmk5y6enfilc5gjuyyizikou</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20030503064351/http://www.cs.uwm.edu:80/~cs780/papers/p447-neogi.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/c4/fe/c4fe4c3a9cf5e021fbd5420e103fcbead5a348bb.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/319463.319685"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Improving Block-level Efficiency with scsi-mq [article]

Blake Caldwell
<span title="2015-04-28">2015</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
In this paper we evaluate the block-level performance of scsi-mq with backing storage hardware representative of a HPC-targerted Lustre filesystem.  ...  Our findings demonstrate increased efficiency of the multi-queue block layer even with disk-based caching storage arrays used in existing parallel filesystems.  ...  To date, this scheduling has not been implemented. Another enhancement added by blk-mq, is support for tagbased completions.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1504.07481v1">arXiv:1504.07481v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/qg23obutsjfrzl3zvvhf5w3rzi">fatcat:qg23obutsjfrzl3zvvhf5w3rzi</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200906171751/https://arxiv.org/pdf/1504.07481v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/54/24/542474421f6ad76cf00a540e917f415e71d494f4.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1504.07481v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Improved read performance in a cost-effective, fault-tolerant parallel virtual file system (CEFT-PVFS)

Yifeng Zhu, Hong Jiang, Xiao Qin, D. Feng, D.R. Swanson
<span title="">2003</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ujjptpi7mjgmfdad3mk3fcer3y" style="color: black;">CCGrid 2003. 3rd IEEE/ACM International Symposium on Cluster Computing and the Grid, 2003. Proceedings.</a> </i> &nbsp;
Due to the ever-widening performance gap between processors and disks, I/O operations tend to become the major performance bottleneck of data-intensive applications on modern clusters.  ...  If all the existing disks on the nodes of a cluster are connected together to establish high performance parallel storage systems, the cluster's overall performance can be boosted at no additional cost  ...  Cold read performance improvement by skipping one server with heavy disk load and reading the data from its mirror.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/ccgrid.2003.1199440">doi:10.1109/ccgrid.2003.1199440</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/ccgrid/ZhuJQFS03.html">dblp:conf/ccgrid/ZhuJQFS03</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/wg3adkqqefbxxcrs326a5bne3a">fatcat:wg3adkqqefbxxcrs326a5bne3a</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20040826224953/http://cse.unl.edu:80/~yzhu/papers/CEFT_PVFS_CCGRID03.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/5c/29/5c29185e094292f9bb86fdff69ef0a0e8bef419e.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/ccgrid.2003.1199440"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Restrained utilization of idleness for transparent scheduling of background tasks

Ningfang Mi, Alma Riska, Xin Li, Evgenia Smirni, Erik Riedel
<span title="">2009</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/v56cuxdvkrfj7m43mos56qvlui" style="color: black;">Proceedings of the eleventh international joint conference on Measurement and modeling of computer systems - SIGMETRICS &#39;09</a> </i> &nbsp;
A common practice in system design is to treat features intended to enhance performance and reliability as low priority tasks by scheduling them during idle periods, with the goal to keep these features  ...  a Linux kernel 2.6.22 prototype.  ...  Storage systems depend heavily on background activities to deploy features that enhance performance and availability.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/1555349.1555373">doi:10.1145/1555349.1555373</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/sigmetrics/MiRLSR09.html">dblp:conf/sigmetrics/MiRLSR09</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/nt4hgtgr5bgl3nomssfrg2alou">fatcat:nt4hgtgr5bgl3nomssfrg2alou</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20100616153255/http://www.cs.wm.edu/~esmirni/docs/sigmetrics09.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/77/a6/77a6d62fc24f8ab049e8286ceebbfc69092e8e19.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/1555349.1555373"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Xen and the art of virtualization

Paul Barham, Boris Dragovic, Keir Fraser, Steven Hand, Tim Harris, Alex Ho, Rolf Neugebauer
<span title="">2003</span> <i title="ACM Press"> Proceedings of the nineteenth ACM symposium on Operating systems principles - SOSP &#39;03 </i> &nbsp;
The virtualization approach taken by Xen is extremely efficient: we allow operating systems such as Linux and Windows XP to be hosted simultaneously for a negligible performance overhead -at most a few  ...  Our design is targeted at hosting up to 100 virtual machine instances simultaneously on a modern server.  ...  More importantly, such systems do not adequately support performance isolation; the scheduling priority, memory demand, network traffic and disk accesses of one process impact the performance of others  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/945461.945462">doi:10.1145/945461.945462</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/7hm3vlf3szhije46eqm6cl3iu4">fatcat:7hm3vlf3szhije46eqm6cl3iu4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20081031213618/http://www2.cs.uh.edu/~jaspal/cosc7397/06papers/xen.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/88/01/8801651e71cbfca952d036957dfc93494cb3b943.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/945461.945462"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Scale and performance in the Denali isolation kernel

Andrew Whitaker, Marianne Shaw, Steven D. Gribble
<span title="2002-12-31">2002</span> <i title="Association for Computing Machinery (ACM)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/i24hgue5erh4haqtfyyjvfijdu" style="color: black;">ACM SIGOPS Operating Systems Review</a> </i> &nbsp;
abstraction, but unlike conventional virtual machine monitors, Denali does not attempt to emulate the underlying physical architecture precisely, and instead modifies the virtual architecture to gain scale, performance  ...  This paper describes the Denali isolation kernel, an operating system architecture that safely multiplexes a large number of untrusted Interact services on shared hardware.  ...  Scaler Performance~ and Simplicity and the Denali Virtual Architecture The virtual architecture exposed by Denali was designed to enhance scalability, performance, and simplicity.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/844128.844147">doi:10.1145/844128.844147</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/imbdifxkefdwjpirzphb2dno4e">fatcat:imbdifxkefdwjpirzphb2dno4e</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20120712145048/http://www.cs.toronto.edu/~demke/2227S.12/Papers/p195-whitaker.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/78/8a/788aabc7230c0453fae684ee418970e076f1942b.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/844128.844147"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

Practical Approach to Implement Koha Data Backup through Cloud Computing In Benue State University

IGBUDU Murphy Tersoo, ASEN Anita Tersur, VER Akuhwa
<span title="">2021</span> <i title="International Journal of Research and Scientific Innovation"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/zrdtxfwsfvd73m2apjc6jpkkjm" style="color: black;">International journal of research and scientific innovation</a> </i> &nbsp;
This research made use of Linux cronjob command to schedule an automatic process that runs every 30 minutes to take koha data backup to a dropbox account that was created and synchronized with the koha  ...  The research is anchored on the experience of staff of Benue State University Library.  ...  Hardware Minimum Requirement: Processor: Pentium-4, 2.6 GHz and, higher RAM: 2 GB Hard Disk Drive : 500 GB Software Requirement: Already Installed Koha running on any deviation of Linux operating  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.51244/ijrsi.2021.8409">doi:10.51244/ijrsi.2021.8409</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/3vll6vtnlfgcfjlmf3s27ayere">fatcat:3vll6vtnlfgcfjlmf3s27ayere</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210606124749/https://www.rsisinternational.org/journals/ijrsi/digital-library/volume-8-issue-4/164-169.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/98/0c/980c6f10d242782babcb39d2a3cec99a11fa16e2.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.51244/ijrsi.2021.8409"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Deconstructing storage arrays

Timothy E. Denehy, John Bent, Florentina I. Popovici, Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau
<span title="2004-12-01">2004</span> <i title="Association for Computing Machinery (ACM)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/i24hgue5erh4haqtfyyjvfijdu" style="color: black;">ACM SIGOPS Operating Systems Review</a> </i> &nbsp;
Second, we demonstrate how Shear can be used to extract detailed characteristics about the individual disks within an array.  ...  We illustrate the correctness of Shear by running it upon numerous simulated configurations, and then verify its real-world applicability by running Shear on both software-based and hardware-based RAID  ...  Shear can help extract individual parameters from disks within an array, enabling performance enhancements previously limited to single disk systems.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/1037949.1024401">doi:10.1145/1037949.1024401</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/5dwc74fdwbazraoybbbqta5xhy">fatcat:5dwc74fdwbazraoybbbqta5xhy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170829235749/http://research.cs.wisc.edu/adsl/Publications/shear-asplos04.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/1d/70/1d707fd0109a54b16ccda83d96fcf45d471fc28e.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/1037949.1024401"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>
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