Publication Type |
pre-print |
School or College |
College of Engineering |
Department |
Computing, School of |
Creator |
Balasubramonian, Rajeev |
Other Author |
Shafiee, Ali; Taassori, Meysam; Davis, Al |
Title |
MemZip: exploring unconventional benefits from memory compression |
Date |
2014-01-01 |
Description |
Memory compression has been proposed and deployed in the past to grow the capacity of a memory system and reduce page fault rates. Compression also has secondary benefits: it can reduce energy and bandwidth demands. However, most prior mechanisms have been designed to focus on the capacity metric and few prior works have attempted to explicitly reduce energy or bandwidth. Further, mechanisms that focus on the capacity metric also require complex logic to locate the requested data in memory. In this paper, we design a highly simple compressed memory architecture that does not target the capacity metric. Instead, it focuses on complexity, energy, bandwidth, and reliability. It relies on rank subsetting and a careful placement of compressed data and metadata to achieve these benefits. Further, the space made available via compression is used to boost other metrics - the space can be used to implement stronger error correction codes or energy-efficient data encodings. The best performing MemZip configuration yields a 45% performance improvement and 57% memory energy reduction, compared to an uncompressed non-sub-ranked baseline. Another energy-optimized configuration yields a 29.8% performance improvement and a 79% memory energy reduction, relative to the same baseline. |
Type |
Text |
Publisher |
Institute of Electrical and Electronics Engineers (IEEE) |
First Page |
638 |
Last Page |
649 |
Language |
eng |
Bibliographic Citation |
Shafiee, A., Taassori, M., Balasubramonian, R., & Davis, A. (2014). MemZip: exploring unconventional benefits from memory compression. Proceedings - International Symposium on High-Performance Computer Architecture, 638-49. |
Rights Management |
(c) 2014 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
Format Medium |
application/pdf |
Format Extent |
950,574 bytes |
Identifier |
uspace,18836 |
ARK |
ark:/87278/s6zw4w1w |
Setname |
ir_uspace |
ID |
712634 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6zw4w1w |