Performance of image and video processing with general-purpose processors and media ISA extensions

Parthasarathy Ranganathan, Sarita Adve, Norman P. Jouppi

Research output: Contribution to journalConference article

Abstract

This paper aims to provide a quantitative understanding of the performance of image and video processing applications on general-purpose processors, without and with media ISA extensions. We use detailed simulation of 12 benchmarks to study the effectiveness of current architectural features and identify future challenges for these workloads. Our results show that conventional techniques in current processors to enhance instruction-level parallelism (ILP) provide a factor of 2.3X to 4.2X performance improvement. The Sun VIS media ISA extensions provide an additional 1.1X to 4.2X performance improvement. The ILP features and media ISA extensions significantly reduce the CPU component of execution time, making 5 of the image processing benchmarks memory-bound. The memory behavior of our benchmarks is characterized by large working sets and streaming data accesses. Increasing the cache size has no impact on 8 of the benchmarks. The remaining benchmarks require relatively large cache sizes (dependent on the display sizes) to exploit data reuse, but derive less than 1.2X performance benefits with the larger caches. Software prefetching provides 1.4X to 2.5X performance improvement in the image processing benchmarks where memory is a significant problem. With the addition of software prefetching, all our benchmarks revert to being compute-bound.

Original languageEnglish (US)
Pages (from-to)124-135
Number of pages12
JournalConference Proceedings - Annual International Symposium on Computer Architecture, ISCA
StatePublished - Jan 1 1999
Externally publishedYes
EventProceedings of the 1999 26th Annual International Symposium on Computer Architecture - ISCA '99 - Atlanta, GA, USA
Duration: May 2 1999May 4 1999

ASJC Scopus subject areas

  • Hardware and Architecture

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