System-level power/performance analysis for embedded systems design
Proceedings of the 38th annual Design Automation Conference
A Heterogeneous Multiprocessor Architecture for Flexible Media Processing
IEEE Design & Test
Energy-efficient soft real-time CPU scheduling for mobile multimedia systems
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
A Service-Curve Model with Loss and a Multiplexing Problem
ICDCS '04 Proceedings of the 24th International Conference on Distributed Computing Systems (ICDCS'04)
On-chip traffic modeling and synthesis for MPEG-2 video applications
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Processor Frequency Selection for SoC Platforms for Multimedia Applications
RTSS '04 Proceedings of the 25th IEEE International Real-Time Systems Symposium
A network service curve approach for the stochastic analysis of networks
SIGMETRICS '05 Proceedings of the 2005 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Tuning SoC Platforms for Multimedia Processing: Identifying Limits and Tradeoffs
CODES+ISSS '04 Proceedings of the international conference on Hardware/Software Codesign and System Synthesis: 2004
Requirements for motion-estimation search range in MPEG-2 coded video
IBM Journal of Research and Development
Statistical service assurances for traffic scheduling algorithms
IEEE Journal on Selected Areas in Communications
Flexible modelling and performance debugging of real-time embedded multimedia systems
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
System-level performance/power analysis for platform-based design of multimedia applications
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Energy-Efficient Wireless Packet Scheduling with Quality of Service Control
IEEE Transactions on Mobile Computing
Application-specific workload shaping in multimedia-enabled personal mobile devices
ACM Transactions on Embedded Computing Systems (TECS)
Statistically Analyzing Execution Variance for Soft Real-Time Applications
Languages and Compilers for Parallel Computing
Towards multi-application workload modeling in sesame for system-level design space exploration
SAMOS'07 Proceedings of the 7th international conference on Embedded computer systems: architectures, modeling, and simulation
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System-level design methods specifically targeted towards multimedia applications have recently received a lot of attention. Multimedia workloads are known to have a high degree of variability. Therefore, designs based on a worstcase analysis of such workloads tend of be overly pessimistic. We address this issue by introducing a new concept called approximate variability characterization curves (or Approximate VCCs), to characterize the "average-case" behavior of multimedia workloads in a parameterized fashion. Since most multimedia applications only have soft real-time constraints, it is often possible to tolerate a small amount of performance degradation. By allowing such small degradations in the performance, large amounts of resource savings are possible. The concept of Approximate VCCs that we present in this paper allows a designer to quantitatively account for the performance degradation and the associated resource savings. We illustrate this using two typical system design cases.