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UID:435@lincs.fr
DTSTART;TZID=Europe/Paris:20190306T140000
DTEND;TZID=Europe/Paris:20190306T140000
DTSTAMP:20190308T135056Z
URL:https://www.lincs.fr/events/a-simple-discrete-time-model-for-complex-n
 fv-accelerators/
SUMMARY:A simple discrete-time model for complex NFV accelerators
DESCRIPTION:\n\n\nNetwork Functions Virtualization (NFV) is among the
 latest network revolutions\, bringing flexibility and avoiding network
 ossification. At the same time\, all-software NFV implementations on
 commodity hardware raise performance issues with respect to ASIC solutions.
 To address these issues\, numerous software acceleration frameworks for
 packet processing have appeared in the last few years. Common among these
 frameworks is the use of batching techniques. In this context\, packets are
 processed in groups as opposed to individually\, which is required at
 high-speed to minimize the framework overhead\, reduce interrupt pressure\,
 and leverage instruction-level cache hits. Whereas several system
 implementations have been proposed and experimentally benchmarked\, the
 scientific community has so far only to a limited extent attempted to model
 the system dynamics of modern NFV routers exploiting batching acceleration.
 We fill this gap by proposing a simple generic model for such
 batching-based mechanisms\, which allows a very detailed prediction of
 highly relevant performance indicators. These include the distribution of
 the processed batch size as well as queue size\, which can be used to
 identify loss-less operational regimes or quantify the packet loss
 probability in high-load scenarios. We contrast the model prediction with
 experimental results gathered in a high-speed testbed including an NFV
 router\, showing that the model not only correctly captures system
 performance under simple conditions\, but also in more realistic scenarios
 in which traffic is processed by a mixture of functions.\n\n\n
CATEGORIES:Seminars,Youtube
LOCATION:Paris-Rennes Room (EIT Digital)\, 23 avenue d'Italie\, 75013
 Paris\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=23 avenue d'Italie\, 75013
 Paris\, France;X-APPLE-RADIUS=100;X-TITLE=Paris-Rennes Room (EIT
 Digital):geo:0,0
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TZID:Europe/Paris
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DTSTART:20181028T020000
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