Improving Software Middleboxes and Datacenter Task Schedulers

  • Hugo Sadok Universidade Federal do Rio de Janeiro
  • Miguel Elias Mitre Campista Universidade Federal do Rio de Janeiro
  • Luis Henrique Maciel Kosmalski Costa Universidade Federal do Rio de Janeiro

Resumo


Shared systems have contributed to the popularity of many technologies. However, these systems often confront a common challenge: to ensure that resources are fairly divided without compromising utilization efficiency. In this master's thesis we look at this problem in two distinct systems---software middleboxes and datacenter task schedulers. We first present Sprayer, a system that uses packet spraying to load balance packets to cores in software middleboxes. Our design eliminates the imbalance problems of per-flow solutions and addresses the new challenges of handling shared flow states that come with packet spraying. Then, we present Stateful Dominant Resource Fairness (SDRF), a task scheduling policy for datacenters that looks at past allocations and enforces fairness in the long run. SDRF reduces users' waiting time on average and improves fairness by increasing the number of completed tasks for users with lower demands, with small impact on high-demand users.

Referências

H. Sadok, M. E. M. Campista, L. H. M. K. Costa. "A Case for Spraying Packets in Software Middleboxes." In ACM HotNets, pp. 127-133, Nov. 2018. Qualis A1.

H. Sadok, M. E. M. Campista, L. H. M. K. Costa. "O Passado Também Importa: Um Mecanismo de Alocação Justa de Múltiplos Tipos de Recursos ao Longo do Tempo." In SBRC, May 2018. Qualis B2.

H. Sadok, M. E. M. Campista, L. H. M. K. Costa. "Um Mecanismo para Compar-tilhamento de Recursos em Nuvens Colaborativas Baseado na Credibilidade dos Usuários." In SBRC, pp. 458-471, May 2017. Qualis B2.

H. Sadok, M. E. M. Campista, L. H. M. K. Costa. "Per-Packet Load Balancing for Multi-Core Middleboxes." Poster in USENIX NSDI, Apr. 2018. Qualis A1.

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Publicado
06/05/2019
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SADOK, Hugo; MITRE CAMPISTA, Miguel Elias; COSTA, Luis Henrique Maciel Kosmalski. Improving Software Middleboxes and Datacenter Task Schedulers. In: CONCURSO DE TESES E DISSERTAÇÕES - SIMPÓSIO BRASILEIRO DE REDES DE COMPUTADORES E SISTEMAS DISTRIBUÍDOS (SBRC), 2. , 2019, Gramado. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2019 . p. 137-144. ISSN 2177-9384. DOI: https://doi.org/10.5753/sbrc_estendido.2019.7780.