Dynamic EEE Coalescing: Techniques and Bounds

Frame Coalescing in Dual-Mode EEE

The IEEE has recently released the 802.3bj standard that defines two different low power operating modes for high speed Energy Efficient Ethernet physical interfaces (PHYs) working at 40 and 100Gb/s. In this paper, we propose the use of the well-known frame coalescing algorithm to manage them and provide an analytical model to evaluate the influence of coalescing parameters and PHY characterist...

The EEE Project

R. Antolini, R. Baldini Ferroli, M. Caporaloni, A. Chiavassa, L. Cifarelli, F. Cindolo, E. Coccia, S. De Pasquale, M. Garbini, C. Gustavino, D. Hatzifotiadou, G. Imponente, H. Menghetti, G. Piragino, G. Sartorelli, M. Selvi, C. Williams, A. Zichichi Museo Storico della Fisica, Centro Studi e Ricerche “E. Fermi”, Roma, Italy Università di Bologna and INFN, Bologna, Italy Università di Torino and...

Course No : EEE 6503 Course

c-Lock: Dynamic Lock-coalescing for Latency-sensitive Distributed Locking

Transactional updates to groups of keys are common to a wide class of distributed systems, spanning MapReduce-based workloads, distributed key-value stores and conventional distributed object databases. Such updates are typically implemented using nested transactions/ locks. The cost of such updates is critically dependent on the nesting depth, the contention on any one lock, and the coherence ...

Punctual Coalescing

Compilers use register coalescing to avoid generating code for copy instructions. For architectures with register aliasing such as x86, Smith, Ramsey, and Holloway (2004) presented a polynomial-time approach, while Scholz and Eckstein (2002) presented an optimal, exponential-time approach together with a near-optimal, quadratic-time heuristic. Both methods scale poorly after aggressive live ran...