Overhead-aware schedulablity analysis on responsive multithreaded processor

Yusuke Kumura, Keigo Mizotani, Masayoshi Takasu, Hiroyuki Chishiro, Nobuyuki Yamasaki

研究成果: Conference contribution

2 引用 (Scopus)

抜粋

In recent real-time systems, having multicore or simultaneous multithreaded (SMT) processor is now widespread. Considering the complexity of today's architecture, predicting the behavior of task execution is challenging. And this has become a severe problem in real-time systems because estimating worst-case execution time (WCET) of tasks is important in constructing a dependable and accurate real-time systems. In this research, we provide overhead-aware schedulability analysis on a SMT processor. We take measurementbased approach in order to estimate WCET of tasks by measuring various runtime overheads that a realtime OS poses, because runtime overheads have a considerable impact on systems. Those measured overheads should be incorporated in schedulability analysis to evaluate the system more accurately. We target Dependable Responsive Multithreaded Processor (DRMTP), an 8-way SMT processor, to estimate runtime overheads, and conduct a series of schedulability analysis with measured runtime overheads considered. Our evaluation shows that the advantage of having context cache mechanism, the unique functionality of D-RMTP, can improve schedulability by up to 15.9%.

元の言語English
ホスト出版物のタイトルProceedings of the 30th International Conference on Computers and Their Applications, CATA 2015
編集者Les Miller
出版者The International Society for Computers and Their Applications (ISCA)
ページ379-386
ページ数8
ISBN(電子版)9781880843987
出版物ステータスPublished - 2015 1 1
イベント30th International Conference on Computers and Their Applications, CATA 2015 - Honolulu, United States
継続期間: 2015 3 92015 3 11

出版物シリーズ

名前Proceedings of the 30th International Conference on Computers and Their Applications, CATA 2015

Other

Other30th International Conference on Computers and Their Applications, CATA 2015
United States
Honolulu
期間15/3/915/3/11

ASJC Scopus subject areas

  • Computer Science Applications

フィンガープリント Overhead-aware schedulablity analysis on responsive multithreaded processor' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Kumura, Y., Mizotani, K., Takasu, M., Chishiro, H., & Yamasaki, N. (2015). Overhead-aware schedulablity analysis on responsive multithreaded processor. : L. Miller (版), Proceedings of the 30th International Conference on Computers and Their Applications, CATA 2015 (pp. 379-386). (Proceedings of the 30th International Conference on Computers and Their Applications, CATA 2015). The International Society for Computers and Their Applications (ISCA).