S. Bueno et al., REAL-TIME UNIX IN HEP DATA-ACQUISITION, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 352(1-2), 1994, pp. 213-215
Today's experimentation in high energy physics is characterized by an
increasing need for sensitivity to rare phenomena and complex physics
signatures, which require the use of huge and sophisticated detectors
and consequently a high performance readout and data acquisition. Mult
i-level triggering, hierarchical data collection and an always increas
ing amount of processing power, distributed throughout the data acquis
ition layers, will impose a number of features on the software environ
ment, especially the need for a high level of standardization. Real-ti
me UNIX seems, today, the best solution for the platform independence,
operating system interface standards and real-time features necessary
for data acquisition in HEP experiments. We present the results of th
e evaluation, in a realistic application environment, of a Real-Time U
NIX operating system: the EP/LX real-time UNIX system.