Optimization of event-building implementation on top of gigabit Ethernet

Author

Gaidioz, Benjamin ; Barczyk, Artur ; Neufeld, Niko ; Jost, Beat

Author_Institution

Eur. Organ. for Nucl. Res., CERN, Geneva

fYear

2005

fDate

10-10 June 2005

Abstract

LHCb is implementing event-building over a gigabit Ethernet switched network. One component of the data acquisition network is a gateway PC which role is to gather data packets from data sources, rebuild events and forward them to computing nodes for trigger algorithms. In this article, we concentrate on the implementation of this component as a software running on a Linux system. We describe in details implementation choices and details of the operating system kernel which permitted us to achieve a higher performance and ensure a higher predictability of the system

Keywords

Linux; data acquisition; high energy physics instrumentation computing; internetworking; local area networks; operating system kernels; packet switching; particle accelerators; telecommunication switching; LHCb; Linux system; computing node; data acquisition network; data packet; data source; gateway PC; gigabit Ethernet switched network; operating system kernel; trigger algorithm; Collaborative software; Computer architecture; Computer networks; Data acquisition; Delay; Detectors; Ethernet networks; Kernel; Linux; Operating systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Real Time Conference, 2005. 14th IEEE-NPSS

Conference_Location

Stockholm

Print_ISBN

0-7803-9183-7

Type

conf

DOI

10.1109/RTC.2005.1547457

Filename

1547457