DocumentCode :
2405020
Title :
Impact of PCI bus load on applications in a PC architecture
Author :
Schönberg, Sebastian
Author_Institution :
Oper. Syst. Res. Group, Technol. Univ., Dresden, Germany
fYear :
2003
fDate :
3-5 Dec. 2003
Firstpage :
430
Lastpage :
439
Abstract :
Any data exchanged between the processor and main memory uses the memory bus, sharing it with data exchanged between I/O devices and main memory. If the processor and a device try to transfer data at the same time, an impact can be seen on the processor as well as on the device. As a result, the execution time of an application on the processor may increase due to memory-bus load generated by I/O devices. In real-time environments, this impact can result in missed deadlines and a behavior that is different to that intended by the designer of the system. This paper gives a method for describing and quantifying the impact of such load on applications executed by the processor.
Keywords :
computer architecture; performance evaluation; peripheral interfaces; real-time systems; I/O devices; PC architecture; PCI bus load; data exchange; data transfer; memory bus; memory-bus load; real-time environments; Bandwidth; Bridges; Character generation; Delay; Hardware; Operating systems; Real time systems; Terminology; Time measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Real-Time Systems Symposium, 2003. RTSS 2003. 24th IEEE
Print_ISBN :
0-7695-2044-8
Type :
conf
DOI :
10.1109/REAL.2003.1253290
Filename :
1253290
Link To Document :
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