Autore: Goran Naran?i?
Formato: Copertina flessibile
Pagine: 104
Data Pubblicazione: 2013-06-02
Edizione: 1
Lingua: English
Descrizione:
This book explores memory performance for smartphone workloads. We design a Video Conference Workload (VCW) to model typical smartphone usage. We describe a tracebased methodology which uses a software implementation to mimic the behaviour of specialised hardware accelerators. Our methodology stores dataflow information from the original application to maintain the relationships between requests. We first study seven address mapping schemes with our VCW, using a firstready, firstcomefirst served (FRFCFS) memory scheduler. Our results show the best performing scheme is up to 82% faster than the worst. The VCW is memory intensive, with up to 86.8% bandwidth utilisation using the best performing scheme. We also test a Web Browsing and a set of computer vision workloads. Most are not memory intensive, with utilisation under 15%. Finally, we compare four proposed schedulers and find that the FRFCFS scheduler using the Write Drain mode performed the best, outperforming the worst scheduler by 6.3%.