About: PCI Express as a Killer of Software-based Real-Time Ethernet

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The time-triggered Ethernet gains in popularity in many different industrial applications. While several hardware implementations exist, software implementations are also very attractive for their price-to-performance ratio. The main parameter that influences the performance of time-triggered protocols is the transmission jitter, which is greater in software implementations. In this paper we evaluate one source of transmission jitter occurring in such software implementations – the PCI Express bus, which interconnects the CPU, memory and the network interface card in modern multi-core computers. We show that the contribution of the PCI Express to the transmission jitter of Ethernet frames is significant and is in the same order of magnitude as the scheduling jitter of modern real-time operating systems. PCI Express latency and jitter are evaluated under various loads produced by virtual machines running on dedicated CPU cores. We use the IEEE 1588 feature of the network card for precise timing measurements. The time-triggered Ethernet gains in popularity in many different industrial applications. While several hardware implementations exist, software implementations are also very attractive for their price-to-performance ratio. The main parameter that influences the performance of time-triggered protocols is the transmission jitter, which is greater in software implementations. In this paper we evaluate one source of transmission jitter occurring in such software implementations – the PCI Express bus, which interconnects the CPU, memory and the network interface card in modern multi-core computers. We show that the contribution of the PCI Express to the transmission jitter of Ethernet frames is significant and is in the same order of magnitude as the scheduling jitter of modern real-time operating systems. PCI Express latency and jitter are evaluated under various loads produced by virtual machines running on dedicated CPU cores. We use the IEEE 1588 feature of the network card for precise timing measurements. (en)
Title	PCI Express as a Killer of Software-based Real-Time Ethernet PCI Express as a Killer of Software-based Real-Time Ethernet (en)
skos:prefLabel	PCI Express as a Killer of Software-based Real-Time Ethernet PCI Express as a Killer of Software-based Real-Time Ethernet (en)
skos:notation	RIV/68407700:21230/13:00208814!RIV14-MSM-21230___
http://linked.open...avai/predkladatel	Fakulta elektrotechnická
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(7H12007), P(GAP103/12/1994), S
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Hanzálek, Zdeněk Lisový, Rostislav Sojka, Michal
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	95594
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/13:00208814
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	PCI Express; Realtime Ethernet (en)
http://linked.open.../riv/klicoveSlovo	Realtime Ethernet PCI Express
http://linked.open...ontrolniKodProRIV	[4AFC944517CE]
http://linked.open...in/vavai/riv/obor	JC
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Security and Safety Modelling Adaptive scheduling and Optimization algorithms for distributed Real-time Embeddes Systems
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Hanzálek, Zdeněk Lisový, Rostislav Sojka, Michal
http://localhost/t...ganizacniJednotka	21230

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