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Summary: Appears in Proceedings of the 28th Annual International Symposium on Computer Architecture, June 2001
Variability in the Execution of Multimedia Applications
and Implications for Architecture £
Christopher J. Hughes, Praful KaulÝ, Sarita V. Adve, Rohit Jain, Chanik ParkÞ, and Jayanth Srinivasan
Dept. of Computer Science ÝTransmeta Corporation ÞDept. of Computer
University of Illinois pkaul@transmeta.com Science and Engineering
at Urbana-Champaign Seoul National University
rsim@cs.uiuc.edu park@iris.snu.ac.kr
Abstract
Multimedia applications are an increasingly important
workload for general-purpose processors. This paper an-
alyzes frame-level execution time variability for several
multimedia applications on general-purpose architectures.
There are two reasons for such an analysis. First, it has
been conjectured that complex features of such architec-
tures (e.g., out-of-order issue) result in unpredictable exe-
cution times, making them unsuitable for meeting real-time
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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