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Aergia: Exploiting Packet Latency Slack in On-Chip Networks

Reetuparna Das, Onur Mutlu, Thomas Moscibroda, and Chita Das

Abstract

A traditional network-no-chip (NoC) employs simple arbitration strategies, such as round robin or oldest first, which treat packets equally regardless of the source application's characteristics. This is suboptimal because packets can have different effects on system performance. We define slack as a key measure for characterizing a packet's relative importance. Aergia introduces new router prioritization policies that exploit interfering packets' available slack to improve overall system performance and fairness.

Details

Publication typeArticle
Published inIEEE Micro. Special Issue: Micro's Top Picks from 2010 Computer Architecture Conference
PublisherIEEE
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