Efficiency and I/O Performance of Low-Power Architectures

  • Data: 27 giugno 2018 dalle 15:00 alle 16:00

  • Luogo: Sala Riunioni, piano 2, viale Berti Pichat 6/2, Bologna

Contatto di riferimento:

Partecipanti: Francieli Zanon Boito (CORSE - Compiler Optimization and Run-time Systems, Inria Grenoble)

Abstract. We present an energy efficiency and I/O performance analysis of low-power architectures when compared to conventional architectures, with the goal of assessing the viability of using them as storage servers. Our results show that despite the fact the power demand of the storage device amounts for a small fraction of the power demand of the whole system, significant increases in power demand are observed when accessing the storage device. We investigate the access pattern impact on power demand, looking at the whole system and at the storage device by itself, and compare all tested configurations regarding energy efficiency. Then we extrapolate the conclusions from this study to provide guidelines for when considering the replacement of traditional storage servers by low-power alternatives. We show the choice depends on the expected workload, estimates of power demand of the systems, and factors limiting performance.

Il seminario avra' luogo nella sala riunione al II piano in viale Berti Pichat, 6/2.