TY - JOUR
T1 - A first look at 100 Gbps LAN technologies, with an emphasis on future DAQ applications
AU - Otto, Adam
AU - Cámpora Pérez, Daniel Hugo
AU - Neufeld, Niko
AU - Schwemmer, Rainer
AU - Pisani, Flavio
PY - 2015/12/1
Y1 - 2015/12/1
N2 - The LHCb experiment is preparing a major upgrade, during long shutdown 2 in 2018, of both the detector and the data acquisition system. A system capable of transporting up to 50 Tbps of data will be required. This can only be achieved in a manageable way using 100 Gbps links. Such links recently became available also in the servers, while they have been available between switches already for a while. We present first measurements with such links using standard benchmarks and using a prototype event-building application. We analyse the CPU load effects by using Remote DMA technologies, and we also show comparison with previous tests on 40G equipment.
AB - The LHCb experiment is preparing a major upgrade, during long shutdown 2 in 2018, of both the detector and the data acquisition system. A system capable of transporting up to 50 Tbps of data will be required. This can only be achieved in a manageable way using 100 Gbps links. Such links recently became available also in the servers, while they have been available between switches already for a while. We present first measurements with such links using standard benchmarks and using a prototype event-building application. We analyse the CPU load effects by using Remote DMA technologies, and we also show comparison with previous tests on 40G equipment.
U2 - 10.1088/1742-6596/664/5/052030
DO - 10.1088/1742-6596/664/5/052030
M3 - Article
SN - 1742-6588
VL - 664
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 5
M1 - 052030
ER -