Enabling software management for multicore caches with a lightweight hardware support

Jiang Lin, Qingda Lu, Xiaoning Ding, Zhao Zhang, Xiaodong Zhang, P. Sadayappan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

28 Scopus citations

Abstract

The management of shared caches in multicore processors is a critical and challenging task. Many hardware and OS-based methods have been proposed. However, they may be hardly adopted in practice due to their non-trivial overheads, high complexities, and/or limited abilities to handle increasingly complicated scenarios of cache contention caused by many-cores. In order to turn cache partitioning methods into reality in the management of multicore processors, we propose to provide an affordable and lightweight hardware support to coordinate with OS-based cache management policies. The proposed methods are scalable to many-cores, and perform comparably with other proposed hardware solutions, but have much lower overheads, therefore can be easily adopted in commodity processors. Having conducted extensive experiments with 37 multi-programming workloads, we show the effectiveness and scalability of the proposed methods. For example on 8-core systems, one of our proposed policies improves performance over LRU-based hardware cache management by 14.5% on average.

Original languageEnglish (US)
Title of host publicationProceedings of the Conference on High Performance Computing Networking, Storage and Analysis, SC '09
DOIs
StatePublished - 2009
Externally publishedYes
EventConference on High Performance Computing Networking, Storage and Analysis, SC '09 - Portland, OR, United States
Duration: Nov 14 2009Nov 20 2009

Publication series

NameProceedings of the Conference on High Performance Computing Networking, Storage and Analysis, SC '09

Other

OtherConference on High Performance Computing Networking, Storage and Analysis, SC '09
CountryUnited States
CityPortland, OR
Period11/14/0911/20/09

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications

Keywords

  • Cache management
  • Multicore
  • Shared cache

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