Last level cache partitioning via multiverse thread classification

Authors

BURAK SEZİN OVANT
İSA AHMET GÜNEY
MUHAMMED EMİN SAVAŞ
GÜRHAN KÜÇÜK

DOI

10.3906/elk-1610-336

Abstract

Last level caches (LLCs) are part of the last line of defense against the famous memory wall problem. Today, almost all processors utilize a LLC for the same reason. This study extends our previous work, which proposed a cache-partitioning mechanism using thread classification. Here, we propose three enhancements to the existing system: 1) an adaptive traffic threshold mechanism for more portable classification hardware, 2) a new method for classifying way-hungry threads, and finally, 3) a thorough comparison of two design alternatives. Compared to the original way- partitioning mechanism, we show that the proposed mechanism's performance improved by around 6%, on average.

Keywords

Cache partitioning, classification, multiverse

First Page

220

Last Page

233

Recommended Citation

OVANT, BURAK SEZİN; GÜNEY, İSA AHMET; SAVAŞ, MUHAMMED EMİN; and KÜÇÜK, GÜRHAN (2018) "Last level cache partitioning via multiverse thread classification," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 26: No. 1, Article 20. https://doi.org/10.3906/elk-1610-336
Available at: https://journals.tubitak.gov.tr/elektrik/vol26/iss1/20