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ABOUT IT NOTES
The IT notes collection is intended for IT documents which have not been sent for publication, and are therefore of a more internal nature. They can record any aspect of IT infrastructure or services and need not be peer reviewed, but should be of some lasting value as a reference for other members of the depeartment or the wider CERN community.
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IT Notes

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2017-06-08
16:19
IT Department User Survey Report / Jones, Pete (CERN)
The CERN computing user community is very heterogeneous consisting of people having varying backgrounds and working environments [...]
CERN-IT-Note-2017-005. - 2017. - 87 p.
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2017-05-24
16:28
IT Department User Survey Engineering Tools Usage Report / Jones, Pete (CERN)
Engineering tools are supports by the IT-CDA-AD section and these include Electronic, Mechanical, Mathematical and Field Solver tools [...]
CERN-IT-Note-2017-004. - 2017. - 6 p.
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2017-05-24
16:25
IT Department User Survey PDF Usage Report / Jones, Pete (CERN)
During 2016 the IT-CDA group carried out a study of IT users and their working environments and habits with the aim of understanding the user community better [...]
CERN-IT-Note-2017-003. - 2017. - 6 p.
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2017-04-03
10:58
Profiling CPU-bound workloads on Intel Haswell-EP platforms / Guerri, Marco (CERN) ; Giordano, Domenico (CERN) ; Cristovao, Cordeiro (CERN)
With the increasing adoption of public and private cloud resources to support the demands in terms of computing capacity of the WLCG, the HEP community has begun studying several benchmarking applications aimed at continuously assessing the performance of virtual machines procured from commercial providers. [...]
CERN-IT-Note-2017-002. - 2017. - 8 p.
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2017-02-14
15:55
Simulating network throughput by correlating perfSONAR measurements with link utilisation / Babik, Marian (CERN) ; Hendrik, Borras (Ruprecht-Karls-Universitaet Heidelberg (DE))
In this report the modeling of the network performance through delay and packet loss measurements is explored. [...]
CERN-IT-Note-2017-001. - 2017. - 22 p.
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2016-09-23
13:39
Summer Student Programme 2016 Report - WMArchive Performance Service / Fischer, Nils Leif
This project is part of the WMArchive project that provides long-term storage for the CMS workflow and data management framework job reports (FWJRs). [...]
CERN-STUDENTS-Note-2016-234. - 2016.
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2016-09-19
14:34
Best Practices for Cloud Provider Connectivity for R&E Users / Bos, Erik-Jan (Nordunet) ; Fischer, Lars (Nordunet) ; Kleist, Josva (Nordunet) ; Foster, David (CERN)
R&E Networks have been in the business of serving the needs of research and education for decades. [...]
CERN-IT-Note-2016-008. - 2016. - 6 p.
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2016-09-16
10:06
Evaluation of the Suitability of Alluxio for Hadoop Processing Frameworks / Lawrie, Christopher ; Kothuri, Prasanth (CERN)
Alluxio is an open source memory speed virtual distributed storage platform. [...]
CERN-STUDENTS-Note-2016-216. - 2016.
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2016-09-15
12:09
NetBench. Automated Network Performance Testing / Cadeddu, Mattia
In order to evaluate the operation of high performance routers, CERN has developed the NetBench software to run benchmarking tests by injecting various traffic patterns and observing the network devices behaviour in real-time [...]
CERN-STUDENTS-Note-2016-212. - 2016.
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2016-08-30
14:27
Data-Intensive Cloud Service Provision for Research Institutes: the Network Connectivity Problem / Cass, Tony (CERN) ; Martelli, Edoardo (CERN)
Much effort (and money) has been invested in recent years to ensure that academic and research sites are well interconnected with high-capacity networks that, in most cases, span national and continental boundaries. [...]
CERN-IT-Note-2016-007. - 2016.

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