By Topic

RTOS acceleration on soft-core processors using instruction set customization

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Jin Zhenyu ; Dept. of Embedded Syst., Peking Univ., Beijing, China ; M. Sindhwani ; T. Srikanthan

Configurable system-on-chip often uses a soft-core programmable processor, running a real-time operating system (RTOS). However, the CPU overheads imposed by the RTOS increase rapidly with the number of tasks in the system. In This work, we propose instruction set customization as the means to contain RTOS-imposed CPU overheads. We present the design of custom instructions for frequently used RTOS primitives and present our area-time results for a variety of configurations. We show that complex embedded systems stand to benefit significantly from our approach. Individual RTOS routines show performance improvements in the range of 50-90%. Frequently used RTOS primitives showed an improvement of 10-35% and the Dhrystone mark of the system improved by as much as 13%.

Published in:

Field-Programmable Technology, 2004. Proceedings. 2004 IEEE International Conference on

Date of Conference:

6-8 Dec. 2004