Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

The performance of PC solid-state disks (SSDs) as a function of bandwidth, concurrency, device architecture, and system organization

The performance of PC solid-state disks (SSDs) as a function of bandwidth, concurrency, device... As their prices decline, their storage capacities increase, and their endurance improves, NAND Flash Solid State Disks (SSD) provide an increasingly attractive alternative to Hard Disk Drives (HDD) for portable computing systems and PCs. This paper presents a study of NAND Flash SSD architectures and their management techniques, quantifying SSD performance under user-driven/PC applications in a multi-tasked environment; user activity represents typical PC workloads and includes browsing files and folders, emailing, text editing and document creation, surfing the web, listening to music and playing movies, editing large pictures, and running office applications. We find the following: (a) the real limitation to NAND Flash memory performance is not its low per-device bandwidth but its internal core interface; (b) NAND Flash memory media transfer rates do not need to scale up to those of HDDs for good performance; (c) SSD organizations that exploit concurrency at both the system and device level (e.g. RAID-like organizations and Micron-style (superblocks) improve performance significantly; and (d) these system- and device-level concurrency mechanisms are, to a significant degree, orthogonal: that is, the performance increase due to one does not come at the expense of the other, as each exploits a different facet of concurrency exhibited within the PC workload. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM SIGARCH Computer Architecture News Association for Computing Machinery

The performance of PC solid-state disks (SSDs) as a function of bandwidth, concurrency, device architecture, and system organization

Download PDF
11 pages

Loading next page...
 
/lp/association-for-computing-machinery/the-performance-of-pc-solid-state-disks-ssds-as-a-function-of-RjnAT07FwE

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Association for Computing Machinery
Copyright
Copyright © 2009 by ACM Inc.
ISSN
0163-5964
DOI
10.1145/1555815.1555790
Publisher site
See Article on Publisher Site

Abstract

As their prices decline, their storage capacities increase, and their endurance improves, NAND Flash Solid State Disks (SSD) provide an increasingly attractive alternative to Hard Disk Drives (HDD) for portable computing systems and PCs. This paper presents a study of NAND Flash SSD architectures and their management techniques, quantifying SSD performance under user-driven/PC applications in a multi-tasked environment; user activity represents typical PC workloads and includes browsing files and folders, emailing, text editing and document creation, surfing the web, listening to music and playing movies, editing large pictures, and running office applications. We find the following: (a) the real limitation to NAND Flash memory performance is not its low per-device bandwidth but its internal core interface; (b) NAND Flash memory media transfer rates do not need to scale up to those of HDDs for good performance; (c) SSD organizations that exploit concurrency at both the system and device level (e.g. RAID-like organizations and Micron-style (superblocks) improve performance significantly; and (d) these system- and device-level concurrency mechanisms are, to a significant degree, orthogonal: that is, the performance increase due to one does not come at the expense of the other, as each exploits a different facet of concurrency exhibited within the PC workload.

Journal

ACM SIGARCH Computer Architecture News – Association for Computing Machinery

Published: Jun 15, 2009

There are no references for this article.