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IT Notes

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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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2016-08-25
16:30
Researching and deploying an APEX security scanning tool / Vali, Silvia (CERN)
Most of the APEX applications have not been developed considering security in mind or were developed many years ago, as well as the old version of APEX used exposes those type of applications to a variety of potential security risks. [...]
CERN-STUDENTS-Note-2016-131. - 2016.
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2016-08-25
12:35
Static Code Analysis with Gitlab-CI / Datko, Szymon Tomasz
Static Code Analysis is a simple but efficient way to ensure that application’s source code is free from known flaws and security vulnerabilities. [...]
CERN-STUDENTS-Note-2016-126. - 2016.
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2016-08-19
19:09
Product Licenses Database Application / Tonkovikj, Petar
The goal of this project is to organize and centralize the data about software tools available to CERN employees, as well as provide a system that would simplify the license management process by providing information about the available licenses and their expiry dates. [...]
CERN-STUDENTS-Note-2016-106. - 2016.
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