Content-Aware Reduction of Bit Flips in Phase Change Memory

Authors

Arockia David Roy Kulandai, Marquette UniversityFollow
Thomas Schwarz, Marquette UniversityFollow

Document Type

Article

Publication Date

7-2020

Publisher

Institute of Electrical and Electronic Engineers (IEEE)

Source Publication

IEEE Letters of the Computer Society

Source ISSN

2573-9689

Abstract

The energy costs of Phase Change Memory (PCM) depends almost completely on the number of bits written per time unit. By using an encoding, we can reduce the number of bit flips when overwriting low-entropy data with low-entropy data. This is achieved by using a frequency table for bytes in classes of data to select the encoding. Using various corpora of mainly HTML files, we show that we can reduce the number of bit flips by about 0.5 bit flips per byte.

Comments

Accepted version. IEEE Letters of the Computer Society, Vol. 3, No. 2 (July-December 2020): 58-61. DOI. © 2020 Institute of Electrical and Electronic Engineers (IEEE). Used with permission.

Recommended Citation

Kulandai, Arockia David Roy and Schwarz, Thomas, "Content-Aware Reduction of Bit Flips in Phase Change Memory" (2020). Computer Science Faculty Research and Publications. 58.
https://epublications.marquette.edu/comp_fac/58