A New Mechanism for Transmission Notification on SMP

Eric Lemoine 1 Cong-Duc Pham 1 Laurent Lefèvre 1
1 RESO - Protocols and softwares for very high-performance network
Inria Grenoble - Rhône-Alpes, ENS Lyon - École normale supérieure - Lyon, CNRS - Centre National de la Recherche Scientifique : UMR5668
Abstract : This paper presents the design, implementation, and evaluation of a new technique aimed to reduce the number of interrupts due to transmitted packets in the parallel network subsystem . This technique combines interrupt and polling modes and relies on support in the Network Interface Controller --- per-processor transmit queues --- for distributing processing of transmission notifications among processors. Our prototype implementation on Linux and Myrinet yields performance gains of 16 on a 4-processor machine running a web server application.
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Eric Lemoine, Cong-Duc Pham, Laurent Lefèvre. A New Mechanism for Transmission Notification on SMP. [Research Report] RT-0295, INRIA. 2004, pp.16. ⟨inria-00069885⟩

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