LHCb trigger streams optimization

@article{Derkach2017LHCbTS,
  title={LHCb trigger streams optimization},
  author={Denis Derkach and Nikita Kazeev and R. Neychev and A. Panin and Ilya Trofimov and Andrey Ustyuzhanin and M. Vesterinen},
  journal={Journal of Physics: Conference Series},
  year={2017},
  volume={898}
}
The LHCb experiment stores around 1011 collision events per year. A typical physics analysis deals with a final sample of up to 107 events. Event preselection algorithms (lines) are used for data reduction. Since the data are stored in a format that requires sequential access, the lines are grouped into several output file streams, in order to increase the efficiency of user analysis jobs that read these data. The scheme efficiency heavily depends on the stream composition. By putting similar… 

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