DirectPath: high performance and energy efficient platform I/O architecture for content intensive usages

With the widespread development of cloud computing and high speed communications, end users store or retrieve video, music, photo and other contents over the cloud or the local network for video-on-demand, wireless display and other usages. The traditional I/O model in a mobile platform consumes tim...

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Hauptverfasser: Wang, Ren, Maciocco, Christian, Tai, Tsung-Yuan Charlie, Yavatkar, Raj, Lu, Lucas Kecheng, Min, Alexander W.
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creator Wang, Ren
Maciocco, Christian
Tai, Tsung-Yuan Charlie
Yavatkar, Raj
Lu, Lucas Kecheng
Min, Alexander W.
description With the widespread development of cloud computing and high speed communications, end users store or retrieve video, music, photo and other contents over the cloud or the local network for video-on-demand, wireless display and other usages. The traditional I/O model in a mobile platform consumes time and resources due to excessive memory access and copying when transferring content from a source device, e.g., network controller, to a destination device, e.g., hard disk. This model introduces unnecessary overhead and latency, negatively impacting the performance and energy consumption of content-intensive uses. In this paper, we introduce DirectPath, a low overhead I/O architecture that optimizes content movement within a platform to improve energy efficiency and throughput performance. We design, implement and validate the Direct-Path architecture for a network-to-storage file download usage model. We evaluate and quantify DirectPath's energy and performance benefits on both laptop and small form-factor SoC based platforms. The measurement results show that DirectPath reduces energy consumption by up to 50% and improves throughput performance by up to 137%.
doi_str_mv 10.1145/2208828.2208841
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identifier ISBN: 9781450310550
ispartof 2012 Third International Conference on Future Systems: Where Energy, Computing and Communication Meet (e-Energy), 2012, p.1-10
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language eng
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Cloud computing
Computer architecture
Content movement
DirectPath
Energy efficiency
High performance
IP networks
Mobile platforms
Networks -- Network protocols -- Network protocol design
Performance evaluation
Platform I/O architecture
Protocols
SoC efficiency
System-on-a-chip
Throughput
title DirectPath: high performance and energy efficient platform I/O architecture for content intensive usages
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