| dc.contributor |
Mahapatra , Rabi |
|
| dc.creator |
Goyal , Nitesh |
|
| dc.date |
2006 -08 -16T19 :02 :36Z |
|
| dc.date |
2006 -08 -16T19 :02 :36Z |
|
| dc.date |
2005 -05 |
|
| dc.date |
2006 -08 -16T19 :02 :36Z |
|
| dc.date.accessioned |
2013 -03 -12T17 :43 :08Z |
|
| dc.date.available |
2013 -03 -12T17 :43 :08Z |
|
| dc.date.issued |
2013 -03 -12 |
|
| dc.identifier |
http : / /hdl .handle .net /1969 .1 /3766 |
|
| dc.identifier.uri |
http : / /hdl .handle .net /1969 .1 /3766 |
|
| dc.description |
Technological advancements in computer hardware and software have made embedded
systems highly affordable and widely used . Consumers have ever increasing demands
for powerful embedded devices such as cell phones , PDAs and media players . Such
complex and feature -rich embedded devices are strictly limited by their battery life -
time . Embedded systems typically are diskless and use flash for secondary storage
due to their low power , persistent storage and small form factor needs . The energy
efficiency of a processor and flash in an embedded system heavily depends on the
choice of file system in use . To address this problem , it is necessary to provide sys -
tem developers with energy profiles of file system activities and energy efficient file
systems . In the first part of the thesis , a macro -model for the CRAMFS file system
is established which characterizes the processor and flash energy consumption due to
file system calls . This macro -model allows a system developer to estimate the energy
consumed by CRAMFS without using an actual power setup . The second part of
the thesis examines the effects of using non -volatile memory as a write -behind buffer
to improve the energy efficiency of JFFS2 . Experimental results show that a 4KB
write -behind buffer significantly reduces energy consumption by up to 2 -3 times for
consecutive small writes . In addition , the write -behind buffer conserves flash space
since transient data may never be written to flash . |
|
| dc.format |
300640 bytes |
|
| dc.format |
electronic |
|
| dc.format |
application /pdf |
|
| dc.format |
born digital |
|
| dc.language |
en _US |
|
| dc.publisher |
Texas A &M University |
|
| dc.subject |
Embedded Flash File Systems |
|
| dc.subject |
Macro -modeling |
|
| dc.title |
Macro -modeling and energy efficiency studies of file management in embedded systems with flash memory |
|
| dc.type |
Book |
|
| dc.type |
Thesis |
|
| dc.type |
Electronic Thesis |
|
| dc.type |
text |
|