The data flow simulator, a tool for system simulation

Author

Jones, Kathleen McBride

Author_Institution

Westinghouse Electric Corp., Baltimore, MD, USA

fYear

1991

fDate

14-17 Oct 1991

Firstpage

504

Lastpage

509

Abstract

Westinghouse has developed a unique and innovative tool, the data flow simulator (DFS), that directly links software design to a hardware/operation system model that provides detailed information on the execution of the input software application and determines the system performance statistics, including processor utilization, bus utilization, memory utilization, critical transmission paths, operating system overhead and overall throughput for each application scenario that is input to the model. The DFS has been used on the AWACS radar system improvement program. Simulation has provided critical feedback to the software engineers as a result of DFS outputs that showed the impact of bus conflicts on processor utilization, bottlenecks in the design, the impact of the software to hardware mapping on overall throughput, and the impact of various Ada tasking schemes on system performance

Keywords

Ada; digital simulation; operating systems (computers); parallel programming; radar systems; software tools; AWACS radar system; Ada tasking schemes; bottlenecks; bus conflicts; bus utilization; critical transmission paths; data flow simulator; input software application; memory utilization; operating system overhead; overall throughput; processor utilization; software design; system performance statistics; system simulation; Application software; Hardware; Operating systems; Radar; Software design; Software performance; Software tools; Statistics; System performance; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Avionics Systems Conference, 1991. Proceedings., IEEE/AIAA 10th

Conference_Location

Los Angeles, CA

Type

conf

DOI

10.1109/DASC.1991.177217

Filename

177217