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MITTS: memory inter-arrival time traffic shaping by Yanqi Zhou; David Wentzlaff is a Computer Science article available to read on EtoBox.

What is MITTS: memory inter-arrival time traffic shaping about?

Memory bandwidth severely limits the scalability and performance of multicore and manycore systems. Application performance can be very sensitive to both the delivered memory bandwidth and latency. In multicore systems, a memory channel is usually shared by multiple cores. Having the ability to precisely provision, schedule, and isolate memory bandwidth and latency on a per-core basis is particularly important when different memory guarantees are needed on a per-customer, per-application, or per-core basis. Infrastructure as a Service (IaaS) Cloud systems, and even general purpose multicores optimized for application throughput or fairness all benefit from the ability to control and schedule memory access on a fine-grain basis. In this paper, we propose MITTS (Memory Inter-arrival Time Traffic Shaping), a simple, distributed hardware mechanism which limits memory traffic at the source (Core or LLC). MITTS shapes memory traffic based on memory request inter-arrival time, enabling fine-grain bandwidth allocation. In an IaaS system, MITTS enables Cloud customers to express their memory distribution needs and pay commensurately. For instance, MITTS enables charging customers that have

Who reads MITTS: memory inter-arrival time traffic shaping?

Author

Yanqi Zhou; David Wentzlaff

Publisher

ACM

Published

2016

Language

EN

Field

Computer Science (Physical Sciences)