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IO performance of ATLAS data formats

The interplay of the ATLAS persistent event data model and the ROOT based I/O backend was studied in order to improve the read performance and disk size of ATLAS data formats for simulation, reconstruction and data analysis. The enabling of several native ROOT features such as basket ordering and th...

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Detalles Bibliográficos
Autores principales: Schaffer, RD, Bhimji, W, Biscarat, C, Brandt, G, Duckeck, G, van Gemmeren, P, Peters, A, Vukotic, I
Lenguaje:eng
Publicado: 2010
Materias:
Acceso en línea:http://cds.cern.ch/record/1299564
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author Schaffer, RD
Bhimji, W
Biscarat, C
Brandt, G
Duckeck, G
van Gemmeren, P
Peters, A
Vukotic, I
author_facet Schaffer, RD
Bhimji, W
Biscarat, C
Brandt, G
Duckeck, G
van Gemmeren, P
Peters, A
Vukotic, I
author_sort Schaffer, RD
collection CERN
description The interplay of the ATLAS persistent event data model and the ROOT based I/O backend was studied in order to improve the read performance and disk size of ATLAS data formats for simulation, reconstruction and data analysis. The enabling of several native ROOT features such as basket ordering and the tree cache has lead to significant improvements in dedicated test setups using local disks, and file servers managed by dCache, DPM and xrootd. After implementation in the ATLAS Athena framework, tests in more realistic environments were done. The functionality of the improvements and results from the performance tests are reported.
id cern-1299564
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-12995642019-09-30T06:29:59Zhttp://cds.cern.ch/record/1299564engSchaffer, RDBhimji, WBiscarat, CBrandt, GDuckeck, Gvan Gemmeren, PPeters, AVukotic, IIO performance of ATLAS data formatsDetectors and Experimental TechniquesThe interplay of the ATLAS persistent event data model and the ROOT based I/O backend was studied in order to improve the read performance and disk size of ATLAS data formats for simulation, reconstruction and data analysis. The enabling of several native ROOT features such as basket ordering and the tree cache has lead to significant improvements in dedicated test setups using local disks, and file servers managed by dCache, DPM and xrootd. After implementation in the ATLAS Athena framework, tests in more realistic environments were done. The functionality of the improvements and results from the performance tests are reported.ATL-SOFT-SLIDE-2010-381oai:cds.cern.ch:12995642010-10-13
spellingShingle Detectors and Experimental Techniques
Schaffer, RD
Bhimji, W
Biscarat, C
Brandt, G
Duckeck, G
van Gemmeren, P
Peters, A
Vukotic, I
IO performance of ATLAS data formats
title IO performance of ATLAS data formats
title_full IO performance of ATLAS data formats
title_fullStr IO performance of ATLAS data formats
title_full_unstemmed IO performance of ATLAS data formats
title_short IO performance of ATLAS data formats
title_sort io performance of atlas data formats
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1299564
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AT bhimjiw ioperformanceofatlasdataformats
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AT duckeckg ioperformanceofatlasdataformats
AT vangemmerenp ioperformanceofatlasdataformats
AT petersa ioperformanceofatlasdataformats
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