Computer Architecture Newsletter

IEEE Computer Architecture Letters
March 18, 2016 – 01:13 pm
And more recently the embedded
(CAL) is a semi-annual forum for fast publication of new, high-quality ideas in the form of short, critically refereed, technical papers. Submissions are welcomed on any topic in computer architecture.

The IEEE Computer Society seeks applicants for the position of editor-in-chief of the IEEE Computer Architecture Letters, serving a three-year term starting 1 January 2017, renewable for one additional two-year term. Please view the EIC Search Ad for more information or contact Kimberly Sperka, ksperka@computer.org

Refactored Design of I/O Architecture for Flash Storage

By Sungjin Lee, Jihong Kim, and Arvind Mithal

Flash storage devices behave quite differently from hard disk drives (HDDs); a page on flash has to be erased before it can be rewritten, and the erasure has to be performed on a block which consists of a large number of contiguous pages. It is also important to distribute writes evenly among flash blocks to avoid premature wearing. To achieve interoperability with existing blockI/O subsystems for HDDs, NAND flash devices employ an intermediate software layer, called the flash translation layer (FTL), which hides these differences. Unfortunately, FTL implementations require powerful processors with a large amount of DRAM in flash controllers and also incur many unnecessary I/O operations which degrade flash storage performance and lifetime. In this paper, we present a refactored design of I/O architecture for flash storage which dramatically increases storage performance and lifetime while decreasing the cost of the flash controller. In comparison with page-level FTL, our preliminary experiments show a reduction of 19 percent in I/O operations, improvement of I/O performance by 9 percent and storage lifetime by 36 percent. In addition, our scheme uses only $\frac{1}{128}$ DRAM memory in the flash controller.

Editorials and Announcements

Editorials

Reviewers List

Annual Index

Access recently published CAL articles

Source: www.computer.org
You might also like
A Senior Indian Govt. Officer Explains Cloud Computing
A Senior Indian Govt. Officer Explains Cloud Computing ...
Troubleshooting
Troubleshooting
Nova NOVA DEVELOPMENT, INC., NOVA Art Explosion "500,000 Win DVD 40994" (Catalog Category: Clip Art & Fonts)
CE (Nova)
  • A complete library of 15, 24-bit color photographs in categories ranging from Architecture to Water Sports
  • More than 2, marbles, textures, fabrics, beads and woods provide the perfect backdrop for all your projects.
  • Create personal or business projects, like scrapbooks, brochures and more with 750 high-quality fonts
  • More than 150, Scalable Vector Graphics
  • Easily add flair to flyers, greeting cards, newsletters, banners, brochures and more.
Related Posts