Title :
Impact of Pages Sizes to Execute Code Using Demand Paging and NAND Flash at Smart Card Scale
Author :
Cogniaux, Geoffroy ; Grimaud, Gilles
Author_Institution :
LIFL, Univ. of Lille I, Nord-Europe, France
Abstract :
Nowadays, the desire to embed more applications in systems as small as smart cards or sensors is growing. However, physical limitations of these systems, like very small main memory, and their cost of production make this very difficult to achieve. One solution is to execute code from a secondary memory, cheaper, denser, but slower, such as NAND Flash. Solutions based on Demand-Paging and using a cache in main memory, began to be proposed and implemented in the domain of mobile phones, but consume too much RAM yet, compared to what can provide a smart card. In this paper, we show that we can dramatically increase performance by reducing the size of pages in the cache. This solution then allows a more intelligent access to the NAND. We also show that our solution allows to use Demand-Paging within limits of smart cards memories, where a conventional approach, offering too low bandwidth, makes impossible code execution from this kind of secondary memory.
Keywords :
cache storage; flash memories; logic gates; paged storage; smart cards; NAND flash; cache memory; code execution; demand paging; pages sizes; smart card scale; Competitive intelligence; Costs; Delay; Hardware; Intelligent sensors; Mobile handsets; Random access memory; Read-write memory; Sensor systems and applications; Smart cards; Demand Paging; NAND Flash; Smart Card; code execution; sensor;
Conference_Titel :
Complex, Intelligent and Software Intensive Systems (CISIS), 2010 International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-1-4244-5917-9
DOI :
10.1109/CISIS.2010.175