Title :
Aérgia: A Network-on-Chip Exploiting Packet Latency Slack
Author :
Das, Reetuparna ; Mutlu, Onur ; Moscibroda, Thomas ; Das, Chita R.
Author_Institution :
Intel Labs., Intel Corp., Santa Clara, CA, USA
Abstract :
A traditional Network-on-Chip (NoC) employs simple arbitration strategies, such as round robin or oldest first, which treat packets equally regardless of the source applications´ 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. Aérgia introduces new router prioritization policies that exploit interfering packets´ available slack to improve overall system performance and fairness.
Keywords :
network routing; network-on-chip; network-on-chip; packet latency slack; router prioritization policies; system performance; On-chip networks; arbitration; criticality; memory systems; multicore; packet scheduling; prioritization; slack;
Journal_Title :
Micro, IEEE