Name
Abstract | ||
|---|---|---|
The power consumption in chips, in general, and in crossbars switching fabrics, in particular, grows with the maximum sustainable throughput. Due to the fast increasing traffic demands, the performance scalability of crossbars is severely limited by the capability of cooling the hardware devices. Hence, reducing the power consumption is an important design question to improve the crossbar switching performance. We propose to leverage Dynamic Voltage and Frequency Scaling (DVFS) hardware technique for the switching fabric. The main idea is to exploit temporary underloaded conditions to decrease the crossbar transmission rate while preserving maximum throughput. Differently from previous works, we consider a scenario in which the arrival rates are unknown in advance. Our proposed architecture is based on a power controller which runs periodically and independently of the packet scheduler, and whose decisions are based on the real time estimation of the arrival rates. We discuss the performance tradeoff in terms of throughput, delays and power, and show the relevant performance gain due to the use of DVFS in controlling the crossbar. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/ICC.2014.6883783 | Communications |
Keywords | Field | DocType |
Internet,packet switching,power consumption,power control,telecommunication control,telecommunication switching,telecommunication traffic,voltage control,DVFS hardware technique,arrival rates,crossbar switching fabrics,crossbar switching performance,crossbar transmission rate,dynamic voltage control,frequency scaling control,hardware devices,input-queued switches,packet scheduler,power consumption,power controller,traffic demands | Control theory,Computer science,Voltage,Network scheduler,Computer network,Real-time computing,Frequency scaling,Throughput,Fast packet switching,Crossbar switch,Scalability | Conference |
ISSN | Citations | PageRank |
1550-3607 | 1 | 0.36 |
References | Authors | |
8 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Andrea Bianco | 1 | 32 | 5.70 |
| Paolo Giaccone | 2 | 74 | 9.82 |
| Marco Ricca | 3 | 1 | 0.36 |