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Summary: To appear in Proceedings of the 28th International Symposium on Computer Architecture, June 2001
Variability in the Execution of Multimedia Applications
and Implications for Architecture
Christopher J. Hughes, Praful Kaul y , Sarita V. Adve, Rohit Jain, Chanik Park z , and Jayanth Srinivasan
Dept. of Computer Science y Transmeta Corporation z Dept. of Computer
University of Illinois pkaul@transmeta.com Science and Engineering
at UrbanaChampaign Seoul National University
rsim@cs.uiuc.edu park@iris.snu.ac.kr
Abstract
Multimedia applications are an increasingly important
workload for generalpurpose processors. This paper an
alyzes framelevel execution time variability for several
multimedia applications on generalpurpose architectures.
There are two reasons for such an analysis. First, it has
been conjectured that complex features of such architec
tures (e.g., outoforder issue) result in unpredictable exe
cution times, making them unsuitable for meeting realtime
requirements of multimedia applications. Our analysis tests
this conjecture. Second, such an analysis can be used to ef
fectively employ recently proposed adaptive architectures.
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