IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
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IP-aware cache partition and replacement scheme for mobile computing devices
Bobae KimHyukjun Lee
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2019 Volume 16 Issue 15 Pages 20190351

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Abstract

Mobile computing devices employ multiple task-specific IP cores to improve performance and energy. With the main memory shared by all CPU cores and IPs, it becomes a critical bottleneck as increasing multimedia IPs consume significant memory bandwidth whereas the improvement of memory bandwidth lags behind. We propose an IP-aware cache management scheme for the last-level cache to reduce the load on the main-memory, while satisfying QoS requirements of frame-based multimedia applications. Evaluation with CPU applications and 4 K/60 fps video streaming applications shows that our proposed scheme reduces DRAM bandwidth by 28.62% on average over LRU and completely avoids frame-drops.

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© 2019 by The Institute of Electronics, Information and Communication Engineers
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